Citroen - Systeme D'Injection Hdi Bosch Edc 16 c3 Pour Moteur Dv4Td_en

INTERNATIONAL CENTER OF FORMATION TRADES

SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD

CITROEN CARS S.A. with the capital of 16.000.000 € R.C.S. Paris 642.050.199 Registered office: Building Colisée III – 12, street Fructidor 75835 Paris Cedex 17 France Tel.: 01.58.79.79.79 – www.citroen.fr

With CITROEN

INTERNATIONAL CENTER OF FORMATION TRADES AUTOMOBILE TECHNIQUE

61 street Arago 93585 Saint-Ouen cedex Center of formation of:

.

SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD ORGANIZER Name:

DATES OF the TRAINING COURSE

With :

Of:

PARTICIPANTS

Index of the document: 01 SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD

®AUTOMOBILES CITROEN Any reproduction or m8me translation partial without the authorization ěcńte of CITROEN CARS is prohibited and constitutes a counterfeit

B CITROEN

SYNTHETIC CONTENTS OF THE BOOKLET SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD

The purpose of the present booklet is to define the composition and the functionality of a system of engine control diesel HDI BOSCH of the type EDC 16 C3 for engine DV4TD. This device is composed of a numerical electronic computer which analyze information coming from various sensors, and consequently order at the convenient period the injectors. It also has charges of it the regulation of the pressure, the piloting of the electromagnetic sluice gate of recycling of exhaust fumes. In this document will be approached the following topics: - General information and presentation of the system, - Description and operation of the components of the various functions or the functions themselves. - Descriptions of the phases of operation, the Councils of maintenance, - The electric circuit, - The diagnosis of the system.

SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD © AUTOMOBILE CITROEN Any reproduction or translation even partial without the written authorization of CITROEN CARS is prohibited and constitutes a counterfeit

C

CITROEN

SYNOPSIS

CHAPTE

I - SYNOPTIC ........... II - FILTER A CARBUR

III - FUEL HEATER (EL

IV - PUMP HIGH FUEL

V - SPILL VALVE ......

VI - TRANSFER PUMP

VII - FUEL FLOW CON

VIII - CRAWL Of INJEC FUEL ................

IX - INJECTORS DIESE

X - CHARACTERISTIC O

XI - FUEL COOLER ...

CHAPTER 3: FUNCTION III III IV -

CHAPTER 4: FUNCTION: RECYCLING OF GASES

Of EXHAUST ................................. III -

SYNOPTIC ................ VACUUM PUMP ........

III IV -

ELECTROMAGNETIC RECYCLING (EGR) (1253) ........... WINNOW RECYCLING

V-

CATALYTIC POT .......


D

CITROEN

SYNOPSIS CHAPTER 5: FUNCTION: INJECTION ......................................................

I - DRIVING CALCULATOR ..... II - CALCULATOR Of INJECTIO

III - BATTERY (BB00) .............

IV - SENSOR REFERENCE ROL

V - WATER TEMPERATURE SE

VI - TEMPERATURE SENSOR C VII - SENSOR ENGINE SPEED

VIII - SENSOR HIGH FUEL PRE

IX - CONTACTOR OF BRAKE (2

X - CONTACTOR Of CLUTCH (

XII - CONTACTOR REDUNDAN

CHAPTER 6: III III IV -

CHAPTER 7:


© AUTOMOBILE CITROEN Any reproduction or translation even partial without the written authorization of CITROEN CARS is prohibited and constitutes a counterfeit

E

CITROEN

SYNOPSIS CHAPTER 8: FUNCTION: NEED FOR COOLING FOR AIR-CONDITIONING (BRAC) PAGE 63 I - SYNOPTIC .................................................................................... PAGE 63 II - LINEAR PRESSURE PICK-UP OF THE FLUID COOLING AGENT (8009) ........................................................... PAGE 65 III - ADDITIONAL HEATING ................................................................. PAGE 67

CHAPTER 9: MAINTENANCE ......................................................................... PAGE 71 I - RECOMMENDATION CARBURIZING ................................................ PAGE 71 II - SECURITY INSTRUCTIONS ............................................................ PAGE 71 III - EXCHANGES OF PARTS – OPERATIONS TO CARRY OUT ................ PAGE 72 IV - PROCEDURES OF RETURN IN GUARANTEE .................................. PAGE 74

CHAPTER 10: DIAGNOSIS ............................................................................. PAGE 75 I - TOOLS .......................................................................................... PAGE 75 II - FUNCTIONS OF THE TOOLS .......................................................... PAGE 76 III - SCREENS OF TOOLS LEXIA/PROXIA ............................................. PAGE 77 IV - MODE DEGRADED ...................................................................... PAGE 86 V - DEFECTS SENSORS ..................................................................... PAGE 88 VI - DEFECT FUNCTIONS ANNEX ........................................................ PAGE 92

CHAPTER 11: ELECTRIC DIAGRAM ............................................................. PAGE 95


F CITROEN


1 CITROEN Chapter 1

GENERAL INFORMATION: SYSTEM Of DIRECT INJECTION HDI

Caution: All the values specified in this document are given as an indication. To

refer to documentation corresponding to the vehicle

I - PREAMBLE

The development of the new range of engine DV4TD to license to associate a new powerful system of injection it. This system makes it possible to take account of the requirements in term of depollution the standards EURO 3 and it future normalizes EURO 4, approval of control, economy and reliability. WITH - POLLUTION The combustion of the fuel causes the emission of the following pollutants: • carbon dioxide (CO2), • carbon monoxide (CO), • unburnt hydrocarbons (HC), • nitrogen oxides (Nox), • carbon particles. The antipollution regulations become more strict and involve the following evolutions: • installation of a device of recycling of exhaust fumes (EGR) decreasing the nitrogen oxide rate (Nox), • reduction of the quantity of suffers in fuel (SO2). Improvement of the fuel with license the installation of catalysts of oxidation on the vehicles Diesel. The installation of a catalyst of oxidation causes the reduction of the following pollutants: • carbon monoxide (CO), • unburnt hydrocarbons (HC), • carbon particles. Foot-note: EGR: recycling of exhaust fumes



2 CITROEN Chapter 1

B - PRINCIPAL ARCHITECTURE OF ENGINE DV4TD Characteristic: • 4 cylinders 8 valves with camshaft at the head, pulled by notched belt, • an intake manifold integrated into covers cylinder head, • an exhaust manifold placed on the part before engine, • a catalyst of oxidation fixed directly on the exit of the turbocompressor, • a water pump pulled by the belt of distribution, • a duocentric oil pump, • direct injection overfed by turbocompressor without exchanger, • a device of recycling of exhaust fumes (EGR), • an electromagnetic sluice gate of regulation of recycling of exhaust fumes, • a system low pressure in “depression”. C - SYSTEM Of INJECTION BOSCH EDC 16 C3 Characteristic of the system of injection Bosch EDC 16 C3: • new driving calculator 32 bits with “anti-tunning” strategy, storage internal more important, only one bench of injection for the 4 injectors, • management of the injection carburizing according to the engine torque, • fuel pressure in the common slope being able to reach 1350 bars, • petrol station ZP18 integrated into the pump high pressure (system low pressure in depression), • pump high pressure of the type CP3.2.


3

CITROEN

Chapter 1

D - SECURITY INSTRUCTIONS Foot-note: The security instructions are detailed in a range appearing in the REQUIREMENT: Taking into account the very high pressures reigning

in the system high pressure containing hydrocarbon (1350 bars), to respect the instructions below.

mechanical sorter of the vehicle concerned.

Prohibition to smoke in the vicinity immediate of the system high pressure at the time of intervention. To avoid working near flame or of sparks. Turning engine: • not to intervene on the system high pressure containing hydrocarbon, • to always remain out of reach possible fuel jet which can cause serious wounds, • not to approach the hand close to an escape on the system high pressure containing hydrocarbon, • after the shutdown, to wait 30 seconds before any intervention. Foot-note: The latency is necessary to the return to the atmospheric pressure of the system high pressure containing hydrocarbon.


4 CITROEN Chapter 1


CITROEN

5

FUNCTION: FOOD CONTAINING HYDROCARBON

Chapter 2

6

CITROEN

Chapter 2

Caption:

With - Circuit return containing hydrocarbon tank B - System low pressure carburizing (depression) C - System high pressure carburizing Nomenclature: NUMBER OF PART IN LOCATE

Injectors diesel (electrohydraulic)

DIAGRAMS ELECTRIC 1131 - 1132 - 1133 - 1134

5

Temperature sensor containing hydrocarbon

1221

6

Pump fuel starting manual

7

Fuel cooler

8

Fuel tank

9

Fuel heater (electric)

1 to 4

DESIGNATION

10

Screw of water purging

11

Filter fuel + water decanter in fuel

12

Pump high fuel pressure (CP3.2)

13

Crawl of injection common high pressure fuel

14

Sensor high fuel pressure

1276

1321


CITROEN

7 Chapter 2

II - FILTER A CONTAINING HYDROCARBON

WITH - ROLE Role of the fuel filter • filtering of the fuel, • decantation of water, • reheating of the fuel.

Fuel heater (23) (electric). Screw of water purging (22). has - Entry carburizing (retainable connection) B - Exit carburizing (towards pump high fuel pressure) (retainable connection) Filter fuel (11): • periodicity of replacement every 60000 km, • purge every 20000 km. Foot-note: The fuel filter must be replaced in its entirety. The filter element can equip the following systems of injection: • system of injection in depression: SIEMENS SID 802 • system of injection in depression: BOSCH EDC 16 C3 Foot-note: Bowl of filtration equipped with a detector of presence of water in the fuel (4050) (country of great export). Translucent pipe enters the filter to fuel and the pump high fuel pressure: • presence of microbubbles: normal operation, • presence of large bubbles: abnormal operation. SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD


8 CITROEN Chapter 2 III - FUEL HEATER (ELECTRIC) (1276) WITH - ROLE The fuel heater brings the fuel to its temperature of use. • - DESCRIPTION The fuel heater heats the fuel coming from the fuel tank. The fuel heater (23) is composed of resistances (integrated into the fuel filter). The fuel circulates around resistance. This course allows an optimal distribution of heat. The temperature control is ensured by thermostat. C - ESTABLISHMENT Establishment: integrated into the fuel filter. IV - PUMP HIGH FUEL PRESSURE WITH - ROLE OF THE PUMP HIGH FUEL PRESSURE • To provide the high fuel pressure. • To supply the injectors diesel through the grout pipe system common high pressure. • The pump high fuel pressure is pulled by the belt of distribution. Foot-note: The pump high fuel pressure is not a pump saddle jib crane and does not require a chock. The part high pressure of the pump is cast solid and includes/understands three elements with 120°


9

CITROEN

Chapter 2

Nomenclature: LOCATE

DESIGNATION

6

Pump fuel starting manual

8

Fuel tank

15

Return carburizing injecting diesel towards containing hydrocarbon tank

16

Jet of discharge

17

Spill valve

18

Jet of flow

19

Transfer pump

20

Fuel flow control unit

21

Limiting device of pressure (integrated into the slope of injection common high pressure fuel) Arrival of the fuel (low pressure)

24 25 26

NUMBER OF PART IN DIAGRAMS ELECTRIC

1277 or 1208

Return carburizing towards containing hydrocarbon tank Exit carburizing high pressure

Characteristics: • the jet of discharge allows the fast discharge of the grout pipe system common high fuel pressure at the time of fast “lifting of foot”, • the jet of flow limits the fuel arrival on the feed pump in the high modes, • circuit with fuel in depression: aspiration by transfer pump integrated into the pump high fuel pressure.


10 CITROEN Chapter 2 C - PHASE OF OPERATION The driving calculator controls the fuel flow control unit in closed loop, via the sensor high fuel pressure. The driving calculator controls the volumetric governor by sending a flexible intensity of form RC0 (Cyclic Report/ratio of Opening). The driving calculator uses the fuel flow control unit to manage the fuel pressure in the grout pipe system common high fuel pressure. If signal RCO is small, the fuel flow control unit lets pass a great quantity of fuel towards the pump high fuel pressure. If signal RCO is large the fuel flow control unit a small quantity of fuel towards the pump high fuel pressure lets pass. Foot-note: The fuel flow control unit is open when it is not ordered by the driving calculator. V - SPILL VALVE WITH - ROLE The spill valve (17) allows: • the degasification of the pump high fuel pressure, • lubrication interns pump high fuel pressure, • regulation of the pressure at the entry of the volumetric governor. Caution: No intervention is authorized on the spill valve.


11 CITROEN Chapter 2 VI - TRANSFER PUMP (PRÉ-ALIMENTATION) WITH - ROLE Role of the transfer pump: • ensure the pumping of the fuel in the containing hydrocarbon tank, • supply the pump high fuel pressure, • allows the lubrication and the cooling of the pump high fuel pressure. B - DESCRIPTION The transfer pump (pre-food) is a gears positive-displacement pump. The depression lies between 0,5 and 1 bar when the fuel returns in the transfer pump. The fuel pressure at exit of transfer pump towards the pump high fuel pressure varies according to the engine speed (between 4,5 and 6 bars). Caution: No intervention is authorized on the pump high fuel pressure. VII - FUEL FLOW CONTROL UNIT WITH - ROLE The fuel flow control unit (20) modifies the active mass fuel rate of flow of the transfer pump towards the pump high fuel pressure. The pump high fuel pressure, compresses the necessary quantity of fuel required by the driving calculator. The reduced fuel flow control unit: • the heating of the fuel, • consumption by the pump high fuel pressure.



CITROEN

12 Chapter 2

VIII - CRAWL Of INJECTION COMMON HIGH FUEL PRESSURE WITH - ROLE Role of the grout pipe system common high fuel pressure: • to store the quantity of fuel necessary to the engine whatever the phase of use, • to deaden the pulsations created by the injections, • to connect the elements of the system high pressure. Elements connected to the grout pipe system common high fuel pressure: • supply line high fuel pressure, • supply lines of the injectors diesel, drain of the return carburizing towards tank, sensor high fuel pressure. 14 - Sensor high fuel pressure 27 - Return carburizing towards tank carburizing 28 - Arrival of the fuel high pressure Foot-note: The limiting device of pressure of the grout pipe system common high fuel pressure makes it possible to limit the maximum pressure in the grout pipe system common high fuel pressure between 1400 and 1500 bars. C - ESTABLISHMENT The grout pipe system common placed between the pump high pressure and the injectors diesel is established on the back face of the driving block.


CITROEN IX -

13

Chapter 2

INJECTORS DIESEL (1131, 1132, 1133, 1134) WITH - ROLE The injectors diesel inject the fuel necessary to the operation of the engine. The direct fuel injection in the head of the pistons improves the output of the engine. The fuel can be injected into the following cases: • préinjection, • principal injection, • postinjection (if severized depollution, currently it is not used).

F - Return tank to fuel 29 - Electric connector 30 - Wind of electromagnetic sluice gate of order 31 - Spring of electromagnetic sluice gate of order 32 - Nut 33 - Switch electromagnetic sluice gate of order 34 - diesel Nose of injector 35 - diesel nozzle Needle 36 - Room of pressure 37 - diesel Spring of injector 38 - Piston of order 39 - Room of order 40 - Jet of food 41 - Jet of the containing hydrocarbon return circuit 42 - Inlet connection high fuel pressure 43 - laminar Filter included in the connection (43) Foot-note: The laminar filter does not require maintenance. SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD © AUTOMOBILE CITROEN Any reproduction or translation even partial without the written authorization of CITROEN CARS is prohibited and constitutes a counterfeit

14 CITROEN Chapter 2

The quantity of fuel injected depends on the following parameters: • duration of the electric drive (calculator of injection), • speed of opening of the diesel injector, • hydraulic flow of the diesel injector (a number and bore), • fuel pressure in the grout pipe system common high pressure fuel. Fuel pressures used in the system of direct injection HDI prohibit the direct electric drive of the injectors diesel. The diesel opening of the injectors is obtained by difference in pressure enters the room of order (39) and the room of pressure (36). The diesel nozzle needle (35) is plated on its seat by the spring (37). The diesel nozzle needle (35) is surmounted by the piston of order (38) (the piston of order is free in its boring). The head of the piston of order emerges in the room of order (39). The room of order is in connection with the following circuits: • system high pressure carburizing through the jet (40), • return circuit to the tank carburizing by the jet (41). The room of order (39) is isolated from the return circuit of fuel by the needle of the electromagnetic sluice gate (33). The diesel nozzle needle (36 35) is plated on its seat by the spring (31). The fuel is distributed in an identical way between the rooms (39) and (36). The jet (41) is larger than the jet (40). The needle of the electromagnetic sluice gate rises as of the food of the reel of the electromagnetic sluice gate (magnetic field). Foot-note: Need for télécoder the class of the injectors in the diesel calculator injection codes hexadecimal.



J - Closed diesel injector K - Diesel opening of injector 33 - Switch electromagnetic sluice gate of order 35 - diesel nozzle Needle 36 Room of pressure 37 - diesel Spring of injector 38 - Piston of order 39 - Room of order 40 - Jet of food 41 - Jet of the containing hydrocarbon return circuit


16 CITROEN Chapter 2 1 - Closed diesel injector The effort exerted by the high pressure is identical between the room of order (39) and the room of pressure (36). The piston of order is motionless (plate against the diesel nozzle needle). The increase in pressure in the grout pipe system common high fuel pressure supports the closing of the diesel injector. 2 - Principle of Opening of a diesel injector The calculator of injection supplies the electromagnetic sluice gate of order. Phase of operation as soon as the needle of the electromagnetic sluice gate (33) rises under the action of the electromagnetic sluice gate of order (magnetic field): • a fuel east leakage creates through the jet (41), • the fuel entry by the jet (40) does not compensate for the leakage by the jet (41), • balance between the pressure of the rooms (39) and (36) is broken, • the pressure present in the room of pressure (36) raises the diesel nozzle needle, • the piston of order goes up, • the fuel is sent in the head of piston. Foot-note: The fuel injection lasts as much as the electromagnetic sluice gate of the diesel injector is supplied. Foot-note: Maximum lifting of the needle of electromagnetic sluice gate of order: 0,06 Misters.



17 CITROEN Chapter 2 3 - Characteristics according to the duration of ordering of the electromagnetic sluice gate Order short duration: • the piston of order presents a certain inertia, • the needle of the diesel injector is slightly raised, • the quantity of fuel injected is weak, • the pressure of injection is lower than the pressure present in the grout pipe system high fuel pressure. Order long duration: • the piston of order and the diesel nozzle needle are completely raised, • the quantity of fuel injected is large, • the pressure of injection is equal to the pressure present in the grout pipe system high fuel pressure. 4 - Principle of closing of a diesel injector Phase of operation as soon as the calculator of injection cuts off the supply of the electromagnetic sluice gate of the diesel injector: • the spring (32) of the electromagnetic sluice gate plates the needle of the electromagnetic sluice gate (34) on its seat, • the jet (41) is sealed, • the fuel leakage towards the return circuit ceases, • the rise in pressure in the room of order (32) causes the closing of the diesel injector, • the balance of the pressures is restored between the rooms (39) and (36), • the diesel injector is ready for a new cycle.


18 CITROEN Chapter 2 X - CHARACTERISTIC OF THE DIESEL ORDERING OF THE INJECTORS WITH - GENERAL INFORMATION The diesel ordering of the injectors is carried out by the stage of ordering of the calculator of injection. The diesel stage of order of the injectors makes it possible to obtain the following tensions: • a tension of 80 V at a peak necessary to the beginning of the diesel lifting of the injectors, • a tension of 50 V necessary to the maintenance of the diesel opening of the injectors. The stage of order integrated into the calculator of injection comprises a condenser which stores energy necessary to the diesel ordering of the injectors. Between each injection, the calculator of injection sends impulses on the reel of the injector not requested. The impulses create a tension induced to charge the stage of order (condensing). Caution: The stage of order cannot take care in the presence of one of anomaly on the feeder of a diesel injector. An internal system of safety to the calculator makes it possible to disconnect the stage from order to the shutdown. SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD

REQUIREMENT: Taking into account the presence of tension raised at the boundaries of the calculator and injectors diesel, possible measurements of tension must be carried out with the recommended material. © AUTOMOBILE CITROEN Any reproduction or translation even partial without the written authorization of CITROEN CARS is prohibited and constitutes a counterfeit

19

CITROEN

Chapter 2

B - ORDER ELECTROMAGNETIC SLUICE GATES OF THE INJECTORS DIESEL

Current of ordering of the diesel injector. Y - Amps X - Duration 44 - Ringing current 45 - Current of maintenance 46 - Phase of call 47 - Phase of maintenance 48 - End of order The power supply of an electromagnetic sluice gate breaks up into 2 phases: • phase of call (tension and ringing current), • phase of maintenance (tension and current of maintenance). 1 - Phase of call The phase of call to for goal to cause a fast lifting of the needle of the electromagnetic sluice gate. The diesel electromagnetic sluice gate of injector is supplied in the following way: • a tension of approximately 80 V, • a current from approximately 20 A. Foot-note: The phase of call is limited to a few milliseconds (0,3 ms). 2 Phase of maintenance The phase of maintenance makes it possible to continue to supply the electromagnetic sluice gate by limiting the absorptive electric output. The diesel electromagnetic sluice gate of injector is supplied in the following way: • a tension of approximately 50 V, • a current from approximately 12 A. Caution: It is interdict to supply a diesel injector in 12 V (destruction of the electromagnetic sluice gate).



20 CITROEN Chapter 2 XI - FUEL COOLER WITH - ROLE The pump high pressure rolls the fuel what raises the temperature of the fuel. The fuel cooler cooled the fuel at the time of the return to the tank. B DESCRIPTION The fuel cooler consists of a metal serpentine which supports heat exchange between the fuel and the air. C - ESTABLISHMENT The fuel cooler is fixed under the body.



CITROEN

21 Chapter 3

FUNCTION: FOOD Of AIR

CITROEN

Chapter 3

22 Circulation of air (according to arrows): With - Air B - Exhaust fumes + air C exhaust Fumes Nomenclature: LOCATE

DESIGNATION

NUMBER OF PART IN DIAGRAMS ELECTRIC

1

Calculator of injection

1320

2

Electromagnetic sluice gate of regulation of recycling (EGR) Vacuum pump

1253

3 4

Winnow recycling of exhaust fumes (EGR)

5

Distributer of air inlet

6

Collector of exhaust fumes

7

Regulating valve of pressure of overfeeding: pressure control

8

Pneumatic capsule of order of regulating valve (on turbocompressor): pressure control

9

Catalytic pot

10

Harness exhaust

11

Turbocompressor

12

Harness air inlet

13

Flowmeter of air + temperature sensor of air

14

Air filter

15

Atmospheric pressure pick-up (integrated into 1320 calculator of injection)

1310


CITROEN

23

Chapter 3

II - FILTER A AIR Periodicity of replacement: every 60000 km. III - TURBOCOMPRESSOR DV4TD 8

7 - Regulating valve of pressure of overfeeding 8 - Pneumatic capsule of regulating valve gear 10 - Turbine of exhaust 16 - Arrival of oil under pressure (cooling 17 - Return oils WITH - ROLE The turbocompressor allows overfeeding in air of the engine. There is only one type of assembly: pressure of overfeeding controlled by the regulating valve only.



B - DESCRIPTION

Caution: The representation of the turbocompressor is symbolic system

but operation is identical. 7 - Regulating valve of pressure of overfeeding 8 - Pneumatic capsule of regulating valve gear: pressure control 10 - Harness exhaust 12 - Harness air inlet has - Towards distributer of admission B - Gas coming from the exhaust manifold The turbocompressor is composed of two distinct rooms. The turbocompressor is composed of the following elements: • a room related to the function exhaust of the engine, • a room related to the function admission, • a turbine and a compressor, made interdependent by a tree.



CITROEN

25

Chapter 3

The turbine, setting in motion by exhaust fumes, actuates the compressor which ensures the compression of the allowed air. Foot-note: Greasing of the turbocompressor: very high speeds of the moving parts and the strong temperatures to be dissipated, require a very neat greasing. Oil under pressure necessary to this function is taken on the oil circuit of the engine. REQUIREMENT: It imperative, before turning off the engine to return

on the diet of idle. Nonthe observation of this condition involves, in the term, the destruction of the turbocompressor (lack of lubrication).

The pressure of overfeeding is controlled by the regulating valve. At rest the regulating valve is closed. The pressure of overfeeding is controlled starting from the pressure of air in the inlet manifold. Phases of operation at the time of the going beyond of the value of taring of the pneumatic capsule (8): • the regulating valve of pressure of overfeeding opens, • the speed of the turbine of exhaust decreases, • the pressure of air of overfeeding decreases. The pressure decrease of overfeeding causes the closing of the regulating valve of pressure of overfeeding.


CITROEN

26

Chapter 3

IV - FLOWMETER Of AIR (1310)

WITH - ROLE The flowmeter of air measures the fresh air flow admitted by the engine. Role of the calculator of injection according to received information: • to determine the rate of recycling of exhaust fumes, • to limit the formation of the fume during the transitional stages (acceleration, deceleration) by correction of the containing hydrocarbon flow. B - DESCRIPTION

16 - Electric connector C - Protective grill D - Metal plate (hot film) E - Temperature sensor of air The flowmeter of air is composed of the following elements: • metal plate (hot film), • temperature sensor of air. The metal plate is very fine and makes it possible to determine the mass of air entering the circuit of air.



27

CITROEN

Chapter 3

The metal plate is composed of the following elements: • resistance of heating, • resistance of measurement (CTN). The calculator of injection feeds the resistance of heating in order to maintain the metal plate at a fixed temperature. The air passing in the flowmeter cools the metal plate: the resistance of measurement (CTN) varies. The calculator associates the value of the resistance of measurement a flow air. REQUIREMENT: Not to touch with the metal plate, the use of a

soufflette is proscribed.

C - ELECTRIC CHARACTERISTICS Assignment of the ways of the connector: • 1 sees: information temperature of air • sees 2: mass debimeter • sees 3: • sees 4: food debimeter (5Volts) • sees 5: information air flow • sees 6: mass D - ESTABLISHMENT The flowmeter of air is established between the air filter and the turbocompressor.





CITROEN

29

Chapter 4

FUNCTION: RECYCLING OF GASES Of EXHAUST

SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD © AUTOMOBILE CITROEN Any reproduction or translation even partial without the written authorization of CITROEN CARS is prohibited and constitutes a

counterfeit

30

CITROEN

Chapter 4

Circulation of air (according to arrows): With - Air B - Exhaust fumes + air C exhaust Fumes Nomenclature: LOCATE

NUMBER OF PART IN ELECTRIC DIAGRAMS

DESIGNATION

1


1320

2

Electromagnetic sluice gate of regulation of recycling (EGR) Vacuum pump

1253

3 4

Winnow recycling of exhaust fumes (EGR)

5

Distributer of air inlet

6

Collector of exhaust fumes

7

Regulating valve of pressure of overfeeding: pressure control

8

Pneumatic capsule of order of regulating valve (on turbocompressor): pressure control

9

Catalytic pot

10

Harness exhaust

11

Turbocompressor

12

Harness air inlet

13

Flowmeter of air + temperature sensor of air 1310

14

Air filter

15

Atmospheric pressure pick-up (integrated into 1320 calculator of injection)


31 CITROEN Chapter 4 II - VACUUM PUMP

WITH - ROLE The vacuum pump provides the depression necessary to the order of the following elements: • winnow recycling of exhaust fumes (EGR) (according to version), • pneumatic capsule of ordering of the valve of recycling of exhaust fumes, • amplifier of braking. B - DESCRIPTION The vacuum pump with pallets is pulled by the driving camshaft.

3 - Vacuum pump 16 - Valve of safety (the valve is integrated into the connection of exit) A valve of safety integrated into the pump isolates the circuit from depression of the brakes, engine to the stop. The valve of safety makes it possible to preserve: • a reserve of vacuum in the amplifier of brake, • function recycling of exhaust fumes (regulation). C - ESTABLISHMENT Establishment: on cylinder head, in end of camshaft side gear box.



32 CITROEN Chapter 4 III - ELECTROMAGNETIC SLUICE GATE OF REGULATION OF RECYCLING (EGR) (1253) WITH - ROLE To order the opening of the valve of recycling of exhaust fumes (EGR). B - DESCRIPTION The electromagnetic sluice gate puts in communication the vacuum pump and the capsule of the valve of recycling of exhaust fumes. has

17 - Electric connector has - Exit “use” B - Entry depression of the vacuum pump C - white Marking D - Entry atmospheric pressure The ordering of the electromagnetic sluice gate is of type RCO (cyclic report/ratio of opening). The electromagnetic sluice gate proportional ordered in tension RCO is connected to the following elements: • atmospheric pressure, • depression provided by the vacuum pump. The pressure provided by the electromagnetic sluice gate lies between the atmospheric pressure and the depression of the vacuum pump. C - ELECTRIC CHARACTERISTICS Order: calculator of injection (mass). Order from variable tension (RCO): • full food (maximum RCO) = maximum depression, • no food (minimum RCO) = not of depression (atmospheric pressure).

Foot-note: RCO: Cyclic report/ratio of Opening.


33 CITROEN Chapter 4 IV - WINNOW RECYCLING OF EXHAUST FUMES (EGR) WITH - ROLE The valve of recycling of exhaust fumes controls the quantity of recycled exhaust fumes. The device of recycling of exhaust fumes (EGR) makes it possible to decrease the quantity of nitrogen oxide (Nox) rejected by the exhaust. The reduction in nitrogen oxides is carried out by reinjecting part of exhaust fumes in the cylinders. The phases of recycling are memorized in cartographies of the calculator of injection.

4 - Winnow recycling of exhaust fumes (EGR) • - Entry depression (electromagnetic sluice gate of regulation of recycling of gases) F - Pneumatic capsule of ordering of the valve of recycling of gases of exhaust Caution: The valve of recycling of gases is closed when it is not ordered pneumatically (depression). Phases of operation when the pneumatic capsule of order is supplied with depression: • the valve of recycling of gases opens, • part of exhaust fumes is absorbed by the engine (distributer of air inlet). C - ESTABLISHMENT The valve of recycling is established on the exhaust manifold.



34 CITROEN Chapter 4 V - CATALYTIC POT

The catalytic pot is equipped with a catalyst 2 ways. The catalytic pot (had on the line exhaust) allows the reduction in rejection in the atmosphere of the following components: • carbon monoxide (CO), • unburnt hydrocarbons (HC).



35

CITROEN

Chapter 5

FUNCTION: INJECTION

I - DRIVING CALCULATOR


counterfeit

CITROEN

36

Chapter 5 BODIES

BSI

Intelligent case o

0004

Compound

1115

Sensor reference

1150

Case of pre-heati

1160

Preheating plugs

1211

Measure with fue

1220

Water engine tem

1221

Thermister gas o

1253

Electromagnetic

1261

Sensor position p

1276

Electric gas oil he

1277

Actuator of flow (

1310

Flowmeter air an

1313

Sensor of engine

1320

Driving calculator

1321

Sensor high pres

1331

Injector rolls n°1

1332

Injector rolls n°2

1333

Injector rolls n°3

1334

Injector rolls n°4

1620

Sensor speed con

2100

Principal contacto

2101

Contactor of redu

4050

Probe presence o

7306

Contactor pedal c

7308

Secondary contac

8009

Linear pressure pi



CITROEN

37

Chapter 5 CONNECTIONS

N° OF CONNECTION

1

Informat

2

Informat

3

Informat

4

Informat

5

Informat

Informat 6

Informat

7

Informat

8

Informat ABS or ESP) Informat

9 10

with ESP) Informat

11

Informat

12

Informat only with

13

Informat

14

order ca

15

Order pr

16

Order of

17

Order ele gases of exhau Order ma

18

containi 19

Order of

20

Informat

21

Informat

22

Informat

23

Ask light

24

Informat



38 CITROEN Chapter 5 II - CALCULATOR Of INJECTION (1320) WITH DESCRIPTION

25 - Name of the system of injection (BOSCH EDC 16 C3) 26 atmospheric Pressure sensor 27 Date of coded manufacture 28 - Material reference PSA 29 - Software reference PSA B - ROLE The calculator manages the whole of the system of injection. The software of the calculator integrates the following functions: • functionalities of control of the injection and depollution, • strategies of approval of control, • the function antidémarrage (ADC2), • strategies of help, • the management of the ordering of the motoventilateurs and the indicators of alarm (*), • the diagnosis with memorizing of the defects, • the function regulation speed (*). (*) according to version.



The calculator ensures the electric control of the following elements: • injectors diesel, • regulator high fuel pressure, • fuel flow control unit actuator (1208), • electromagnetic sluice gate of regulation of recycling (EGR) (1253), • case of pre-heating and postheating (cut postheating), the calculator delivers following information: • instantaneous consumption: towards intelligent case of constraint, • cut refrigeration. The atmospheric pressure pick-up is not dissociable calculator of injection. The calculator comprises a stage of power able to provide the current of order very high necessary to the diesel operation of the injectors. The actualization of the software of the calculator of injection is carried out by remote loading (calculator equipped with a flash EPROM). C INJECTION On system EDC 16 C3 the driving calculator will determine the time of injection compared to the engine torque required and/or necessary. The driving calculator calculation the requirement in couple for the engine from: • the request driver, • the control of stability (ESP), • speed regulator, • operating mode (slowed down, full load…), • couples punctured (compressing of air-conditioning, power-assisted steering, electric consumer). The driving calculator carries out all calculations in engine torque and it is only at the time to control the injectors that the driving calculator transforms the engine torque into time of injection.


40

CITROEN

Chapter 5

• - ATMOSPHERIC PRESSURE PICK-UP (1320) The sensor measures the atmospheric pressure. Role of the calculator of injection according to received information: • to determine the density of the air, • to prohibit recycling in the event of rolling in altitude. Foot-note: The density of the air decreases according to altitude. The atmospheric pressure pick-up (24) is integrated into the calculator of injection. Caution: The atmospheric pressure pick-up is not dissociable calculator

of injection.

• - DESCRIPTION

Connector CME (32 ways gray). Connector CMI (48 ways chestnut). Connector CH (32 ways black). The calculator of injection is connected to the beam of injection by 3 modular connectors. Order of assembly of the connectors: • gray connector, • maroon connector, • black connector.



41

CITROEN Chapter 5 1 - Assignment of the ways of the connector has - Connector CME (32 ways gray) CONNECTOR AND WAYS

SIGNAL

A1 A2 A3 A4

Diagnosis relay the pre one/post heating

B1 B2

+APC

B3 B4 C1 C2 C3 C4 D1 D2 D3 D4 E1 E2

Exit: order relay of pre/post heating

E3 E4 F1

Mass sensor

F2 F3 F4 G1

Injector rolls 4

G2

Injector rolls 2

G3

Injector rolls 1

G4

Injector rolls 2

H1

Injector rolls 1

H2

Injector rolls 3

H3

Injector rolls 4

H4

Injector rolls 3


42 CITROEN Chapter 5 B - Connector CMI (48 ways chestnut) CONNECTOR AND WAYS

A1 A2 A3 A4 B1 B2 B3 B4 C1 C2 C3 C4 D1 D2 D3 D4 E1 E2 E3 E4 F1 F2 F3 F4 G1 G2 G3 G4 H1 H2 H3 H4 J1 J2 J3 J4 K1 K2 K3 K4 L1 L2 L3 L4 M1 M2 M3 M4

SIGNAL

Mass sensor reference rolls

Entry: Signal sensor engine speed Entry: Information speed conveys Food pressure sensor gas oil Mass sensor engine speed

Mass pressure sensor gas oil Entry: Signal sensor reference rolls

Exit: Order principal relay Mass flowmeter (Custom)

Entry: signal driving sensor temperature watersensor engine speed Food Food sensor reference rolls Entry: signal flowmeter (Custom +) Entry: Signal sensor temperature air admission Entry: Signal pressure sensor gas oil Mass driving sensor temperature water Entry: signal sensor temperature gas oil

Exit: Order electromagnetic sluice gate EGR

Exit: Order relay of power Exit: order governor volumetric (on pump high pressure)


43 CITROEN Chapter 5 C - Connector CH (32 ways black) CONNECTOR AND WAYS

SIGNAL

A1 A2 A3

Line dialogs: network EDGE H

A4

Line dialogs: network EDGE L

B1

Exit: order additional heating

B2

Order motoventilator group small speed (ground connection of the terminal)

B3 B4

Line diagnosis (line K)

C1

Exit orders additional heating

C2

Entry: sensor pedals accelerating (track n°2)

C3

+APC

C4

Diagnosis groups motoventilator

D1 D2 D3 D4 E1

Exit: order motoventilator group high speed (ground connection of the terminal)

E2 E3

Entry: Signal contactor clutch

E4

Entry: information secondary footbrake pedal

F1 F2

Food sensor air-conditioning

F3 F4

Mass pressure pick-up of air-conditioning

G1 G2 G3

Power supply of the sensor pedals accelerating Entry: sensor pedals accelerating (N°1 track)

G4

Mass

H1

Mass

H2

Entry: signal of the sensor of air-conditioning

H3

Mass sensor pedals accelerating

H4

Mass power


44 CITROEN Chapter 5 III - BATTERY (BB00) The level of load of the battery is important for the operation of the system of direct injection HDI. Caution: A tension battery lower than 7 V disturbs the operation of the system of direct injection HDI. The calculator memorizes a defect in the following cases: • •

tension battery higher than 18 V, tension battery lower than 6,5 V.

IV - SENSOR REFERENCE ROLLS (1115) WITH - ROLE The sensor of reference rolls informs the calculator of injection of the point died high in compression of each cylinder. The calculator of injection needs this information to order the injectors diesel in sequential mode (cylinder by cylinder in order 1-3-4-2). B - DESCRIPTION

LOCATE

30 With B C D has 31

DESIGNATION

Sensor reference rolls Not dead high cylinder N°2 Not dead high cylinder N°1 Not dead high cylinder N°3 Not dead high cylinder N°4 Target Pinion of distribution

(compression) (compression) (compression) (compression)

CESTABLISHMENT The sensor is of type with Hall effect, it is fixed compared to a target integrated into the pinion of distribution of camshaft. SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD


45 CITROEN Chapter 5 V - WATER TEMPERATURE SENSOR ENGINE (1220) WITH - ROLE The water temperature sensor informs the calculator of the temperature of liquid of driving cooling. Role of the calculator of injection according to received information: • to adjust the time of pre-heating, • to adjust the time of postheating, • to adjust the flow of starting, • to adjust the mode of idle, • to authorize the recycling of exhaust fumes (EGR), • to adjust the mass fuel rate of flow, • to limit the flow injected if the temperature of the liquid of cooling is critical (function antiébullition), • to order the starting of the motoventilateurs, • to order the ratiometer with compound (*), • to order the indicators of alarm and préalerte (*).

Foot-note: (*) according to version.



46

CITROEN

Chapter 5

B - DESCRIPTION The water engine temperature sensor consists of a resistance to negative temperature coefficient (CTN). The more the temperature increases, plus its value of resistance decreases. TEMPERATURE WATER ENGINE IN °C 60

RESISTANCE MINI RESISTANCE NOMINAL IN OHMS IN OHMS

RESISTANCE MAXIMUM IN OHMS

1266

1244

1288

80

642

632

652

100

345

338

352

120

198

194

202

32 - Water engine temperature sensor.


47

CITROEN

Chapter 5

VI - TEMPERATURE SENSOR CARBURIZING (1221) WITH - ROLE Role of the calculator of injection according to received information: • to adjust the mass fuel rate of flow, • to calculate the density of the fuel. B - DESCRIPTION The temperature sensor carburizing (33) consists of a resistance to negative temperature coefficient (CTN). More the temperature increases more its value of resistance decreases. TEMPERATURE FUEL

RESISTANCE MINIMUM IN OHMS

MAXIMUM RESISTANCE IN OHMS

- 40

79 000

109 535

- 30

41 255

55 557

- 20

22 394

29 426

0

7 351

9 248

20

2 743

3 323

40

1 141

1 339

60

522

595

80

259

287

100

138

120

78

84

130

0,60

0,64

150

C - ESTABLISHMENT


48

CITROEN

Chapter 5

VII - SENSOR ENGINE SPEED (1313) Information engine speed on motorizations “FD” is provided by a new active sensor. Specificities of the sensor of engine speed: • establishment side distribution, • •

principle of operation for purpose of Hall,

no adjustment or maintenance its

necessary. WITH - ROLE The sensor makes it possible to determine: • the engine speed, • the position of the mobile attachment. B - DESCRIPTION

B

B - Magnetic target E - Air-gap 34 - Sensor engine speed


counterfeit


C - OPERATION The target is made up 60 (58 + 2) even of magnetic poles distributed on the periphery whose two poles miss to locate the high dead point pistons 1 and 4. Foot-note: By coupling two information sensor reference rolls and sensor engine speed the driving calculator determines the positon exact of each cylinder at the court of time. The passage of the North Poles and southern of the target in front of the sensor modifies the output voltage of the sensor high state and low state. The frequency of the square signals produces by the passage of the poles of the target represents the number of revolutions of the engine. Attention at the following points: • to wash the hands before any handling of the pinion, • to avoid any shock and any deterioration of the magnetic track, • the use of the tools projecting is proscribed, • not to approach magnetic tools, • not to exert efforts on the reinforcement of the target. D - ESTABLISHMENT

The sensor with Hall effect (34) is fixed compared to a target on the pump housing at oil. The ferromagnetic target is fixed on the pinion of crankshaft.


The sensor provides a power proportional to the fuel pressure in the grout pipe system common high pressure (50 to 1500 bars). B - ELECTRIC CHARACTERISTICS Assignment of the ways of the connector: • 1 sees: mass • sees 2: information pressure (0 to 5 V) • sees 3: food + 5 V



51 CITROEN Chapter 5 IX - CONTACTOR OF BRAKE (2100) - CHARACTERISTIC WITH - ROLE The contactor allows the calculator injection to ensure a good approval of control. The electric information given by the contactor of brake is transmitted into telegraphic to the BSI, and is sent to the calculator of injection by the multiplexed network (*). (*) according to version. • - ESTABLISHMENT The contactor of brake is established on the pedals. X - CONTACTOR Of CLUTCH (7306) - CHARACTERISTIC WITH - ROLE The contactor of clutch allows the calculator injection to ensure the operation of the involved idle. • - ESTABLISHMENT The contactor of clutch is established on the pedals. XII - CONTACTOR REDUNDANT FOOTBRAKE PEDAL (7308) - CHARACTERISTIC WITH - ROLE The contactor allows the calculator injection to ensure a good approval of control. Information coming from the contactors of brake is constantly compared between them in order to detect a possible defect. • - ESTABLISHMENT The contactor of brake is established on the pedals.






FUNCTION: PRÉ-POSTCHAUFFAGE

Sees N° A4 of the connector 32 gray ways (CME). (diagnosis case of preheating). Sees N° E2 of the connector 32 gray ways (CME).(order relay of the case prépostchauffage). BODIES BSI

Intelligen

0004

Compou

1150

Case of

1160

Preheati

1320

Driving c CONNECTIONS

N° OF CONNECTION 1

Ask light

2

Ask light


54 CITROEN Chapter 6 II - PREHEATING PLUGS (1160) WITH - ROLE The preheating plugs allow a fast rise of the temperature in the combustion chambers during the launching phase. B - DESCRIPTION

Preheating plugs 11 V. Overall length 118,5 Misters. Constitution of the preheating plugs: • a heating resistance, • a metal envelope of protection.


55 CITROEN Chapter 6 III - CASE OF PRE-POSTCHAUFFAGE (1150) WITH - ROLE The case electrically supplies the preheating plugs according to the orders of the calculator of injection. B - DESCRIPTION Times of pre-postheating are determined by the calculator of injection. In the event of failure of the case of pre-heating, the calculator of injection memorizes a defect. C - ELECTRIC CHARACTERISTICS Assignment of the ways of the connector: •

N° 1 sees: mass,

•

N° 3 sees: +12 V after contact,

•

N° 4 sees: order relay of the case pre-postheating,

•

N° 5 sees: diagnosis case of pre-heating,

•

N° 8 sees: +12 V permanent,

•

N° 9 sees: power supply of the preheating plugs.

D - ESTABLISHMENT

LOCATE DESIGNATION

3 preheating Plug 4 electrical Loom 5 Case of pre-heating 6 Cylinder head engine

56

CITROEN

Chapter 6

IV - PRÉ-POSTCHAUFFAGE

Times of pre-heating and postheating are determined by the driving calculator according to the temperature of the liquid of driving cooling of the mode of idle and altitude. WITH - OPERATION OF PRE-HEATING T°eau engine

Time of pre-heating (in second)

80°C 20°C 0°C - 10°C - 20°C - 25°C - 30°C

0 0 0,5 5 5 10 15

Mode of idle in tr/min

Pre-heating in second Altitude 1000m

750 800 890 950 1050 1075 1100

Pre-heating Pre-heating in second in seconds Altitude Altitude 1500m 2000m

0 0,5 1 5,5 5,5 10,5 15

0 2 5 9,5 9,5 12,5 15

0 3 5 9,5 9,5 12,5 15

B - OPERATION OF POSTHEATING Postheating makes it possible to prolong the operation of the preheating plugs after the launching phase. Postheating makes it possible to decrease the pollutant emissions in the first minutes following starting. Postheating cold reduces the emissions of fume blue and in altitude. DRIVING T°EAU

TIME OF PRE-HEATING (IN SECOND)

MODE OF IDLE IN TR/MIN

80°C 20°C 0°C - 10°C - 20°C - 25°C - 30°C

0 0 0,5 5 5 10 15

750 800 890 950 1050 1075 1100

POST HEATING IN SECOND 0 0 180 180 180 180 180

Parameters being able to stop postheating: • water engine temperature higher than 65°C, • engine speed higher than 3500 rpm, • temperature of the air admission higher than 40°C, • mass fuel rate of flow injected higher than 35 Mg/CP (between 0 and 2500 tr/min), • mass fuel rate of flow injected higher than 25 Mg/CP (engine speed higher than 3000 tr/min), • tension battery lower than 7,5 V.



FUNCTION: DRIVING COOLING (MONEY)

Functions of the calculator of injection: • control starting and stop motoventilateurs (driving cooling), • control postventilation (during 6 maximum minutes), • control lighting of the indicator of alarm temperature of water to compound, • control ratiometer of temperature of water to compound, • diagnosis of the operation of the motoventilateurs, • acquisition of the water engine temperature, • management of the degraded modes.


58 CITROEN Chapter 7 I - SYNOPTIC

Caption:

Simple arrow: telegraphic connection triple Arrow: multiplexed connection Foot-note: This synoptic represents a configuration assembled on Xsara 2. DESIGNATION

NUMBER OF PART IN ELECTRIC DIAGRAMS

Intelligent case of constraint

BSI

Compound

0004

Water engine temperature sensor

1220


1320

Relay food low speed

1508

Relay food high speed

1509

Group motoventilator

1510

Relay average food speed

1514

Linear pressure pick-up of the cooling fluid

8009

Compressor of refrigeration

8020

Calculator of refrigeration

8080


CITROEN

59


N° OF CONNECTION

1

Informat

2

Informat

3

Order re

4

Food of t

5

Food of t

6

Food of t speed

7

Order re

8

Order co

9

Spark co water en

State ma 10

State of

Order AC

Informat 11

Ask refri

Authoriza refrigera 14

Ask flicke of water

Informat 15

Ask for a of refrig

16

Order re



60

CITROEN

Chapter 7

II - WATER TEMPERATURE SENSOR ENGINE (1220) The water temperature sensor informs the calculator of the temperature of the liquid of driving cooling. The water temperature sensor is established on the water case. TEMPERATURE MINI RESISTANCE RESISTANCE IN MAXIMUM RESISTANCE NOMINAL WATER ENGINE IN °C IN OHMS OHMS IN OHMS 60 1266 1244 1288 80.642.632 652.100.345 338 352 120 198 194 202

From the shutdown, the calculator orders the postventilation, if the water temperature exceeds a certain threshold (*) (105°C). (*) according to vehicle. The postventilation is carried out into low speeds and hard to the maximum 6 minutes after the shutdown.


61

CITROEN

Chapter 7

IV - DEGRADED MODE CHARACTERIZATION OF DEFECT OF THE PROBE TEMPERATURE WATER ENGINE

THRESHOLD OF DETECTION

Short-circuit with the mass

Lower tension sensor with 2,2V

Open circuit or short-circuit

Higher tension sensor

with the +BAT

with 4,9V

Coherence of the rise in temperature

INFORMATION - STRATEGY OF HELP - VALUE OF REPLACEMENT Lighting seeing driving diagnosis Lighting of the alert indicator temperature water engine Reduced flow mode (3000 trs) Cut recycling of gases of exhaust (EGR) Cut or intediction of interlocking of the compressor of air-conditioning (AC/OUT) Group motoventilator into large speed Value of replacement temperature of the fuel during 1 minute after the starting of engine then 100°C

ENGINE FD Alarm temperature of water engine Duration of post-ventilation Threshold of temperature to the interlocking of post-ventilation (low speed) Temperature of interlocking the low speed of motoventilator Temperature of interlocking the high speed of motoventilator



CITROEN

62

Chapter 7

V - COOLANT CIRCUIT

7 - Surge tank. 8 - Case of water entry. 9 - Unit heater. 10 - Case of water exit. 11 - Radiator of cooling.



FUNCTION: NEED FOR COOLING FOR AIR-CONDITIONING (BRAC)

Caption:

Simple arrow: telegraphic connection triple Arrow: multiplexed connection Foot-note: this synoptic represents a configuration assembled on Xsara 2. DESIGNATION Intelligent case of constraint Compound Water engine temperature sensor Calculator of injection Relay food low speed Relay food high speed Group motoventilator Relay average food speed Linear pressure pick-up of the cooling fluid Compressor of refrigeration Calculator of refrigeration

NUMBER OF PART IN ELECTRIC DIAGRAMS BSI 0004 1220 1320 1508 1509 1510 1514 8009 8020 8080


CITROEN

64


N° OF CONNECTION

1

Information temp

2

Information on the

3

Order relay low s

4

Food of the motov

5

Food of the motov

6

Food of the motov

7

Order relay avera

8

Order compresso

9

Spark control of th water engine

State manageme 10

State of the com Order AC \ ONE

Information temp 11

Ask refrigeration

Authorization of in refrigeration (AC 14

Ask flickering of th of water engine

Information temp 15

Ask for authoriza of refrigeration (A

16

Order relay high



65 CITROEN Chapter 8 II - LINEAR PRESSURE PICK-UP OF THE FLUID COOLING (8009) WITH - ROLE The sensor measures the value of the pressure in the circuit refrigeration. Role of the calculator of injection according to received information: • to authorize the starting of the motoventilator (cooling condenser of air-conditioning), •

to authorize the interlocking of the compressor of air-conditioning. B -

DESCRIPTION

The sensor is of the piezoelectric type. The sensor is composed of strain gauges. The linear sensor provides a power proportional to the pressure of the circuit refrigeration. Identification: black connector. Foot-note: The electric information given by the sensor is transmitted into telegraphic to the calculator of injection, and is sent to the intelligent case of constraint by the multiplexed network. Value of pressure INTERLOCKING OF MOTOVENTILATEUR

Pressure (bar)

CUT O

Small speed

Average speed

Large speed

10

16

22


Sma spee 7


C - ELECTRIC CHARACTERISTICS Assignment of the ways of the connector: • 1 sees: food 5 V • sees 2: information pressure (0 to 5 V) • sees 3: mass Power provided for a pressure of 1 bar: + 0,5 volt. Power provided for a pressure of 31 bars: + 4,5 V. • - ESTABLISHMENT The sensor is established on the condenser of air-conditioning. • - DEGRADED MODE Role of the calculator of injection at the time of a failure of the pressure controller: • to prohibit the ordering of the compressor of refrigeration (AC/OUT), • recording of a defect in the driving calculator. The motoventilator group is not functional any more for the needs for cooling associated with the refrigeration.



CITROEN

67

Chapter 8

III - ADDITIONAL HEATING WITH - GENERAL INFORMATION Taking into account the high output of the engine, it is necessary to assist the rise in temperature of the cockpit at the time of low temperatures. The assistance of rise in temperature of the cockpit is ordered by the case of constraint intelligent and controlled by the driving calculator. Two devices are used according to the countries of marketing. several immersion heaters (electric resistances) auxiliary established on the water circuit of the unit heater A boiler (or burner) additional fed while carburizing is established in the passage of nose gear wheel left (vehicle cold large country) Foot-note: On Xsara 2 equipped with injection BOSCH EDC 16 C3 the system of boiler is abandoned. B - SYNOPTIC

Caption: Simple arrow: telegraphic connection triple Arrow: multiplexed connection BODIES

BCP3

Switchin

1190 1320

Heater d Driving c


68

CITROEN


N° OF CONNECTION 1

Order relay R1A ( exit driving calcu

2

Power circuit for t additional

3

Power circuit for t additional Order relay R2B ( exit driving calcu

4 5

C - OPERATING CONDITION Te

Your - Temperature of surrounding air Te - water engine Temperature has - Example 1 B - Example 2 With - Zone of authorization of reheating B - Zone of prohibition of reheating The intelligent case of constraint (BSI) determines the need for additional heating to starting according to the temperature surrounding air and for the temperature water engine. Example 1:

• Temperature water engine = 70°C, • Outside temperature = 10 °C, • The conditions of temperatures are apart from the zone of starting: there is no reheating.


Ask additional he

69 CITROEN Chapter 8 Example 2:

• Temperature water engine = 40°C, • Outside temperature = - 10°C, • The conditions of temperatures are in the zone of starting of the additional heating. The BSI determines the need for heating of the cockpit to starting according to the temperature of surrounding air and of the water engine temperature. The intelligent case of constraint orders the immersion heaters under the following conditions: • engine under operation since 60 seconds, • engine speed higher than 700 rpm, • tension battery higher than 12 V (positive load analysis), • water engine temperature higher than 40°C. The intelligent case of constraint orders the stages of reheating gradually: • first stage, • second stage. The end of ordering of the additional heating intervenes as soon as the conditions of temperature allow it (curve).





MAINTENANCE I - RECOMMENDATION CONTAINING HYDROCARBON Caution: The addition of products additivés such as cleaning fuel/remétallisant system is prohibited. II - SECURITY INSTRUCTIONS WITH - PREAMBLE All the interventions on the system of injection must be carried out in accordance with the following regulations and regulations: • proper authorities as regards health, • prevention of the accidents, • environmental protection. Prohibition to smoke in the vicinity immediate of the system high pressure at the time of intervention. To avoid working near flame or of sparks. Turning engine: • not to intervene on the system high pressure containing hydrocarbon, • to always remain out of reach possible fuel jet which can cause serious wounds, • not to approach the hand close to an escape on the system high pressure containing hydrocarbon. After the shutdown, to wait 30 seconds before any intervention. Foot-note: The latency is necessary to the return to the atmospheric pressure of the system high pressure containing hydrocarbon. Caution: The interventions must be carried out by specialized personnel informed of the security instructions and precautions to be taken. Caution: It is interdict to intervene on the turning system high pressure containing hydrocarbon driving. Caution: Before any demounting of the calculator of injection: to wait 30 seconds after the cut of the contact, and to disconnect the negative terminal of the battery. Caution: It is interdict to disconnect a driving diesel injector turning (risk of deterioration of the engine). Caution: Not to order a diesel injector, out of the cylinder head, if its body is not connected to the mass (electrostatic risk of discharge). Caution: Not to force on the pins of the connectors, during the demounting of the calculator of injection. SYSTEM Of INJECTION HDI BOSCH EDC 16 C3 FOR ENGINE DV4TD © AUTOMOBILE CITROEN Any reproduction or translation even partial without the written authorization of CITROEN CARS is prohibited and constitutes a counterfeit

72

CITROEN

Chapter 9

III - EXCHANGES OF PARTS – OPERATIONS TO BE REALIZED WITH - PRELIMINARY OPERATIONS Before intervening on the circuit of injection, it can be necessary to carry out the cleaning of the connections of the following sensitive elements (see corresponding operations): • filter fuel, • pump high fuel pressure, • crawl of injection common high fuel pressure, • drains high fuel pressure, • carry-injectors diesel. REQUIREMENT: After disassembling, to immediately seal the connections of the sensitive elements with stoppers, to avoid the entry of impurities. B - EXCHANGES OF PARTS REQUIREMENT: To respect the tightening torques of safety of the elements of the below carburizing system high pressure, with a periodically controlled torque wrench. Caution: Before any addition or replacement of parts, to make sure that the customer is in possession of his confidential chart. C - PROHIBITED OPERATIONS Deposit-rests: • sensor high fuel pressure on grout pipe system common high fuel pressure, • volumetric governor (1208) on pump high fuel pressure, • temperature sensor carburizing on connection 4 ways. OBSERVATION/ INFORMATION NECESSARY Appairage with the intelligent case of constraint Code customer Télécodage driving calculator Description of the equipment of Driving calculator convey Télécoder hexadecimal numbers of each Number WINE diesel injector with the corresponding cylinder Diesel injector In the event of replacement of a diesel injector, télécoder 8 hexadecimal numbers of each diesel injector with the cylinder Case of Appairage with the driving calculator Code customer constraint Number WINE intelligent All keys Case of Nothing Case of constraint constraint engine specific engine according to version ELEMENTS REPLACE

OPERATION TO BE CARRIED OUT


73 CITROEN Chapter 9 D - TRAINING OF the CALCULATOR Of INJECTION Caution: The exchange of a calculator of injection between two vehicles, results in the impossiblity to start the vehicles. During the exchange of a calculator of injection, it is necessary to proceed to a training of the system antidémarrage. Conditions to respect to carry out a training of the system antidémarrage: • to be in possession of the access code to the intelligent case of constraint (registered on confidential chart customer), • to be in possession of a calculator of injection nine, • to use the tool for diagnosis, • to carry out a procedure of training of the driving calculator: “TRAINING DRIVING CALCULATOR”, • to proceed to the remote loading of the calculator of injection (if necessary). 1 - Télécodage of the calculator of injection This procedure makes it possible to reduce the number of references of calculators. Parameters télécodables: • driving cooling (motoventilator group), • pressure pick-up of refrigeration, • speed conveys, • additional heating, • calculators. 2 - Remote loading of the calculator of injection The actualization of the software of the calculator of injection is carried out by remote loading (calculator equipped with a flash EPROM).

Foot-note: This operation is carried out by means of the tools for diagnosis.



CITROEN

74 Chapter 9

IV - PROCEDURES OF RETURN IN GUARANTEE With - ELEMENTS OF the SYSTEM Of INJECTION Before return towards the center of expertise, the following elements must be sealed, placed in a bag plastic and conditioned in their packing of origin: • injectors diesel, • pump high fuel pressure, • crawl of injection common high fuel pressure, • sensor high fuel pressure, • filter fuel. B - CALCULATOR Of INJECTION The disconnection of the calculator of injection involves its automatic locking.

REQUIREMENT: In the event of return of part to the guarantee voucher, to turn over the calculator of injection with the access code.



75

CITROEN Chapter 10

DIAGNOSIS

I - TOOLS STATION PROXIA: 4165 - T

STATION LEXIA: 4171 - T


counterfeit

76 CITROEN Chapter 10 II - FUNCTIONS OF THE TOOLS

WITH - STATION PROXIA: 4165T The tool allows: • identification of the calculator, • history, • reading of the codes defects, • the obliteration of the defects, • measurements of the variable parameters associated, • the test of the actuators, • the update of the calculator by remote loading, • consultation of the electric diagrams, • identification of the calculator. B - STATION LEXIA: 4171T The tool allows: • identification of the calculator, • history, • reading of the defects, • the obliteration of the defects, • measurements of the variable parameters associated, • the test of the actuators, • the update of the calculator by remote loading, • consultation of the electric diagrams, • identification of the calculator.


CITROEN

Chapter 10 77

III - SCREENS OF TOOLS LEXIA/PROXIA WITH - READER DEFECTS DESCRIPTION OF THE DEFECT Heading

Type

Defect signal pressure air-conditioning

Room

Defect authorization orders

Room

not received air-conditioning Defect signal pedals accelerating

Room

Defect signal flowmeter

Room

Defect circuit air inlet

Room

Defect circuit additional heating 1

Room

Defect circuit additional heating 2

Room

Defect signal pedals accelerating 1

Room

Defect signal pedals accelerating 2

Room



78

CITROEN

Chapter 10 DESCRIPTION OF THE DEFECT

Heading

Type

p-co

P11

Defect interns calculator

Room

P11

Defect signal tension battery

Room

Defect signal contactor brake

Room

P05

P05

P05

P01 Defect signal temperature water engine

Room

P01

P01 Defect signal contactor clutch

Room

P07

Defect signals temperature air

Room

P01

Defect télécodage

Room

P16

P14 Defect orders electromagnetic sluice gate EGR

Room

P14

P04

P03 Defect signal camshaft

Room

P03

P03

P03

P03 Defect signal engine speed

Room

P03

P03

P03 Defect Function Cooling Integrated into the Calculator

Room

P04

Defect orders high speed GMV

Room

P04



79

CITROEN


Heading

Type

Defect orders low speed GMV

Room

Defect signal temperature gas oil

Room

Defect circuit relay pre-heating

Room

Defect calculator

Room

Defect eeprom

Room

Analogical defect converter digital

Room

Defect signal temperature air admission

Room

Defect coded anti-starting

Room

Defect orders injecting

Room

Defect injecting circuit rolls 1

Room



80

CITROEN


Heading

Type

p-co

P02

P02

P02

P02 Defect injecting circuit rolls 2

Room

P02

P02

P02


Room

P02

P02

P02


Room

P02

P02

P12

Defect actuator of filling pump high pressure gas oil

P12 Room

P12

P02

P02

Defect regulating circuit of high pressure gas oil

P02

P02

Defect regulating circuit of high pressure gas oil

P12 Room

P12



CITROEN

81

Chapter 10 DESCRIPTION OF THE DEFECT Heading

Defect circuit relay of food system of injection

Type

Room

Defect communication EDGE

Distant

Defect signal pressure gas oil

Room

Defect food sensor pedals accelerator

Room

Defect food sensors mode, pressure air-conditioning and camshaft

Room

Defect food sensor pressure rail

Room

Defect food calculator in +après contact

Room

Room

Defect signal speed conveys

Distant

Defect engine torque

Room

Internal defect temperature calculator

Room

Defect engine stoppage

Room



82

CITROEN

Chapter 10

B - READER OF the PARAMETERS Values as an indication Idling engine; Temperature engine with 80°C without consumption electric. PARAMETERS Engine speed

UNIT Rpm

Synchronization tree with cams/crankshaft Bars

Consign pressure fuel

Bars

310-320

DEFINITION OF THE PARAMETER Mode of rotation of the engine in a number of per Detection of revolutions the signal coming from sensor of reference rolls authorizing driving starting Fuel pressure measured in the slope high pressure

310-320

%

Flow injected

Mg/blow

Correction flow injector rolls X

Mg/blow

Consign flow gas oil

750 yes

Fuel pressure measured

Governor volumetric RCO fuel

VALUE OF REFERENCE

4

Fuel pressure with to reach in the high slope pressure Rate of opening of the electromagnetic sluice gate of regulation of fuel pressure in pump highrate fuelofpressure Mass fuel flow in the injector

Correction of the flow injected of X°cylindre by the calculator engine Mass fuel rate of flow to be

Mm3: blow

Flow measured air

Mg/blow

200-220

Consign air flow

Mg/blow

200-220

RCO winnows EGR

%

0

Advance pre-injection

°

10

reached in slope high pressure Airthe flow measured for piloting of valve EGR

Air flow to be reached in inlet manifold for piloting of valve EGR Rate of opening of the electromagnetic sluice gate of recycling of exhaust Moment fumes of injection pilot (1°injection) compared to PMH

Advance injection principal

°

-2

Temperature water engine

°C

80

Temperature containing hydrocarbon

°C

70

Temperature air admission

°C

Moment of injection principal (2°injection) by report/ratio with the water PMH temperature by Allowed the driving calculator following them information Temperatureofofthe thesensor fuel of return circuit of gas oil

25

Temperature air admission taken in the flowmeter of air


83

CITROEN PARAMETERS Atmospheric pressure

UNIT

Chapter 10

VALUE OF REFERENCE

Mbars

1013

Tension battery

Volt

12 to 14,7

Tension +APC

Volt

12 to 14,7

Pre-post relay heating

Inactive

Ask cut air-conditioning Pressure airconditioning

Not

Bar

5

DEFINITION OF THE PARAMETER Pressure of the ambient air measured by the internal sensor with the of calculator Tension the measured battery by the driving calculator Tension of + crossed by

contact measured by driving calculator of injection State of the ordering of the relay of power supply of the candles of State of prohibition by calculator of the activation of compressor of air-conditioning Pressure of the cooling fluid acquired by the calculator of injection engine

Relay GMV

Not

Speed GMV

0

Mode of rotation of motoventilator (varies 0%à100%)

Consign speed GMV

0

Mode of rotation of motoventilator requested by calculator according to water temperature and of air-conditioning

Mg/blow

4

Km/h

0

Mass fuel rate of flow of each injector at the time of a driving cycle Speed acquired by the sensor

Flow injected measured Conveyed speed

gone up on the gear box or by the network EDGE Position pedals of accelerator

%

Report/ratio BV

0

Pedal principal brake

Flow injected measured

0

Mg/blow

Position measured by the sensor accelerator Report/ratiopedal of gear box

Slackened

calculated according to the mode engine and speed conveys Information given by

4

sensor of footbrake pedal (information coming fromfuel the rate BSI) of flow Given mass by the time of injection and fuel pressure

Temperature calculator

Clutch pedal

°C

Slackened

Temperature acquired by sensor interns with the calculator. A temperature higher than 70°C prohibits theby remote Information given sensor position pedals of clutch (comfort of control)



84

CITROEN PARAMETERS

UNIT

Chapter 10

VALUE OF REFERENCE

DEFINITION OF THE PARAMETER

Calculator not The operation of the engine is locked authorized

State of the calculator

-

Calculator locked

State study

Impossibility of starting Possibility of carrying them out operations of diagnosis following: • Identification • Reading defect • Parameters measurements • Télécodage

The calculator is not boltable

State Afterwards Sale

State of programming antidémarrage coded

-

The calculator is delivered locked. To carry out the training of code calculator then one Programmed 1 appairage The calculator is locked. faith To carry out new training of the code calculator then a appairage Programmed 2 The calculator is locked. time To carry out new training of the code calculator then a appairage Programmed 3 The calculator is locked. time To make a training of the code access of the BSI Calculator The function antidémarrage coded appairé is functional



85

CITROEN

Chapter 10

C - LISTS OF THE TÉLÉCODAGES HEADING

Driving cooling

CHOICE TELECODAGE

GMV mono speed GMV Bi or tri speed

Pressure sensor air-conditioning

No air-conditioning

Gear box

Long manual box

Classify alternator

Classify 15

Additional heating

Linear pressure sensor

No additional heating Candles ordered by the BSI Without regulation speed, control of stability (ESP)

Configuration calculator

Without regulation speed, with control of stability (ESP) With regulation speed, without control of stability (ESP) With regulation speed, control of stability (ESP)

Configuration body

Direction on the left Direction on the right

During the replacement of a diesel injector (1) or of replacement of the driving calculator one needs télécoder the eight numbers hexadecimal (2) of each diesel injector for the corresponding cylinder, using the tool for diagnosis.


86 CITROEN Chapter 10 IV - DEGRADED MODE

WITH - VISUALIZATION OF THE DEFECTS The appearance of certain defects in the system of injection results in the lighting of indicator to compound. 23

Lighting seeing driving diagnosis (2): • governor volumetric defect on pump high fuel pressure, • defect food (5 V) pedal accelerator, • defect food (5 V) sensor high fuel pressure, • defect sensor pedals accelerating, • defect sensor high fuel pressure, • defect driving sensor temperature water, • defect recycling of exhaust fumes, • defect regulation pressure of the grout pipe system common high fuel pressure, • defect injectors diesel, • defect relay of pre-postheating, • defect télécodage driving calculator. Driving indicator temperature water (3): • the indicator ignites if the temperature water engine reached 118°C, • the indicator dies out if the temperature water engine goes down in lower part from 117°C, • the indicator flickers in the event of rupture of the powerline of the temperature sensor water engine, • defect groups motoventilator.



B - STRATEGY OF HELP To the appearance of one or more defects the driving calculator passes in degraded mode and active of the strategies of help for stage to the defect. If the defect is important the driving calculator limits the engine speed to 3000 tr/min or with 1200 tr/min (limp home) Reduced mass fuel rate of flow: • this operating mode degraded limit mass fuel rate of flow, • the engine speed cannot exceed 3000 tr/minutes, Limp home: • this operating mode degraded limit mass fuel rate of flow in the event of serious problem, • the engine speed cannot exceed 1200 tr/min, • this mode makes it possible to join the point of service nearest. Foot-note: Certain defects cause the engine stoppage or prohibition to start the thermal engine. Foot-note: When the temperature of the gas oil is higher than 90°/95°C the driving calculator limits the quantity of fuel injected



CITROEN V - DEFECTS SENSORS

CHARACTERIZATION OF DEFECT


Absence of signal

INFORMATION - STRATEGY HELP - VALUE OF REPLACEMENT If the signal is erroneous before synchronization with the sensor engine speed the starting of impossible. If the signal is erroneous in hand of use the calculator engine will order the stop of engine.

Erroneous signal

B - SENSOR FLOWMETER Of AIR (1310) CHARACTERIZATION OF DEFECT Important drift of measure

THRESHOLD OF DETECTION Measure except cartography

Short-circuit with the mass Air flow lower than 9 kg/H And higher engine speed with 150 tr/min Short-circuit with + or circuit opened


INFORMATION - STRATEGY HELP - VALUE OF REPLACEMENT

Cut of the recycling of gases of exhaust according to mode and of the load engine

Air flow higher than 500 kg/H



Short-circuit with the mass Tension sensor lower than Value of replacement 50°C 0,1 V Short-circuit with the +BAT Higher tension sensor to 4,75 V

Value of replacement 50°C


89

CITROEN

Chapter 10

D - SENSOR PEDALS ACCELERATING (1261) INFORMATION - STRATEGY THRESHOLD OF HELP - VALUE OF DETECTION REPLACEMENT Detection pedals Engine speed higher than Limp home (1200 tr/min) blocked accelerator 1100 tr/min (coherence with pedal of Speed conveys higher than brake) 2,5 km/h % acceleration superior with 20% support on brake higher than 1seconde Coherence of the N°1 way Except beach carthography Sees weakest and Reduced flow (3000 tr/min) 2 ways of the sensor N°1 short-circuit sees with Tension sensor lower than The driving calculator takes in mass 0.9 V count the second track of sensor pedals Flow mode reduced to 3000 tr/min N°1 short-circuit sees with Higher tension sensor The driving calculator takes in +BAT or open circuit to 4,75 V count the second track of sensor pedals Flow mode reduced to 3000 tr/min N°2 short-circuit sees with Tension sensor lower than The driving calculator takes in mass 0.9 V count the second track of sensor pedals Flow mode reduced to 3000 tr/min N°1 short-circuit sees with Higher tension sensor The driving calculator takes in +BAT or open circuit to 4,75 V count the second track of sensor pedals Flow mode reduced to 3000 tr/min Sees N°1 and 2 defective Limp home (1200 tr/min) CHARACTERIZATION

E - PRESSURE SENSOR OF AIR-CONDITIONING (8009) CHARACTERIZATION OF DEFECT



Open circuit or short-circuit Tension sensor lower than Cut of the compressor of with the mass 0,2 V air-conditioning Value of replacement 100Kpa Short-circuit with the +BAT Higher tension sensor to 4,95 V

Cut of the compressor of air-conditioning Value of replacement 100Kpa


INF



Open circuit or short-circuit Tension sensor lower than

Lighting of the indica

with the mass

engine

0,25 V

Short-circuit with the +BAT Higher tension sensor

Reduced flow mode

to 4,95 V

Cut engine



Absence of signal

Erroneous signal

Temporary absence of signal Signal temporarily erroneous

H - SENSOR TEMPERATURE INTERNS DRIVING CALCULATOR (1320) CHARACTERIZATION OF DEFECT



Short-circuit with the mass Tension sensor lower than Value of replacement 20°C 0,05 V Short-circuit with the +BAT Higher tension sensor to 4,75 V



Value of replacement 20°C


Open circuit or short-circuit Tension sensor lower than Value of replacement with the mass 2,2 V 900 mbars Short-circuit with +BAT

Higher tension sensor to 4,75 V


Value of replacement 900 mbars

91

CITROEN

Chapter 10

J - CARBURIZING SENSOR TEMPERATURE (1221) CHARACTERIZATION OF Short-circuit with the mass Short-circuit open or courtcircuit to the +BAT

THRESHOLD OF DETECTION Tension sensor lower than Tension sensor higher than 4,75 V

INFORMATION - STRATEGY HELP - VALUE OF REPLACEMENT 2,2 V Value of replacement 70°C Value of replacement 70°C

K - DRIVING SENSOR TEMPERATURE WATER (1220) CHARACTERIZATION OF DEFECT

THRESHOLD OF DETECTION Short-circuit with the mass Tension sensor lower than 2,2 V Open circuit or short-circuit Higher tension sensor with the +BAT to 4,9 V Coherence of the rise in temperature

CHARACTERIZATION OF DEFECT Tension food N°1 sensor pedals accelerating too low or too high Tension food N°2 pressure sensor of air-conditioning, sensor engine speed, sensor camshaft Tension food N°3 pressure sensor of the grout pipe system common high fuel pressure

THRESHOLD OF DETECTION Tension higher than 5,3 V or tension lower than 4,7 V Tension higher than 5,3 V or tension lower than 4,7 V Tension higher than 5,3 V or tension lower than 4,7 V Lighting of the driving indicator dignostic Reduced flow mode (3000

INFORMATION - STRATEGY HELP - VALUE OF REPLACEMENT Lighting seeing diagnosis engine Lighting of the alert indicator temperature water engine Reduced flow mode (3000 tr/min) Cut recycling of the gas of exhaust (EGR) Cut or intediction of interlocking of compressor of air-conditioning (AC/OUT) Group motoventilator in high speed Value of replacement temperature of the fuel during 1 minute after starting of the engine then 100°C

INFORMATION - STRATEGY HELP - VALUE OF REPLACEMENT Lighting seeing driving diagnosis Limp home Strategy of help applied to the defective sensors tr/min) Cut engine Strategy of help applied to the defective sensors


92

CITROEN

Chapter 10

VI - DEFECT ADDITIONAL FUNCTIONS WITH - FUEL FLOW CONTROL UNIT (1208) CHARACTERIZATION OF DEFECT


Short-circuit with the mass

Reduced flow mode (3000 tr/min) Lighting of the indicator diagnosis engine Cut engine Passage in regulation buckles opened Passage in regulation buckles opened

Short-circuit with the +BAT Open circuit

Coherence on electric consumption





Short-circuit with the mass, short-circuit with the +BAT, circuit opened

C - DEFECT COMMUNICATION ON THE NETWORK EDGE CHARACTERIZATION OF DEFECT


Dumb driving calculator

Value of replacement for the impacted parameters EDGE

Absence of communication with the BSI

CHARACTERIZATION OF DEFECT Absence of signal or signal incoherent




8 changes of report/ratio without modification of the signal pedal clutch

E - CONTACTOR SECONDARY OR REDUNDANT FOOTBRAKE PEDAL (7308) CHARACTERIZATION OF DEFECT


THRESHOLD OF DETECTION Coherence between brake Strategy case of constraint Brake not supported the main thing and intelligent secondary




Short-circuit with the mass Short-circuit with +BAT Open circuit CHARACTERIZATION OF DEFECT

Cut recyclin of exhaust

THRESHOLD OF DETECT

Flow air lower than consign Flow air higher than consign

H - REGULATION PRESSURE OF the GROUT PIPE SYSTEM COMMON HIGH FUEL PRESSURE CHARACTERIZATION OF THRESHOLD OF DEFECT DETECTION Pressure lower than consign Derives of more than 350 bars when the engine speed is lower than 800 tr/min Derives of more than 200 Consign too high bars flow of filling of when the engine speed is pump high pressure higher than 800 tr/min fuel Derives from the pressure of crawl of common injection high fuel pressure higher than 150 bars and consign flow of filling of the pump Consign too low high fuel pressure flow of filling of higher than an evaluated pump high pressure threshold fuel according to mode engine. Derives from the pressure of Pressure of the slope Pressure of the slope of high common injection of high common injection fuel pressure lower fuel pressure lower than the pressure with a threshold evaluated minimal in function engine speed (including Pressure maximum of between 0 and 220 bars) crawl of common injection Pressure of the slope high fuel pressure of high common injection exceeded fuel pressure higher than 1450 bars


INFORMATION - STRATEGY HELP - VALUE OF REPLACEMENT Lighting of the indicator diagnosis engine Reduced flow mode (3000 tr/min) Reduction of the instruction of 200 bars Lighting of the indicator diagnosis engine Reduced flow mode (3000 tr/min) Cut injection

Lighting of the indicator diagnosis engine Lighting of the indicator diagnosis engine Reduced flow mode (3000 tr/min) Cut of the injection Lighting of the indicator diagnosis engine


94

CITROEN

Chapter 10

I - GROUP MOTOVENTILATEUR CHARACTERIZATION OF DEFECT


Coherence between speed of group motoventilator and consign

INFORMATION - STRATEGY HELP - VALUE OF REPLACEMENT Lighting seeing alarm temperature water engine Cut of the compressor of air-conditioning

Short-circuit with the mass or with + of the relaise of small or large order speed Open circuit of the relays small or high speed


counterfeit

CITROEN

95

Chapter 11

ELECTRIC DIAGRAM I - GENERAL DIAGRAM




CITROEN

97

Chapter 11

III - DIAGRAM Of ESTABLISHMENT


counterfeit

98 CITROEN Chapter 11 IV - NOMENCLATURE

Case of fuse cockpit Battery Intelligent case of constraint Platinize fusible constraint box (case constraint engine) Connector diagnosis Contactor theft protection device

BH28 BB00 - BSI1 - PSF1 - C001 - CA00 - M000 - MC11 - MC13 MC14 - Masses MC30 MC31 - MC32 - MM01 0004 - Compound 1115 - Sensor reference rolls 1208 - Volumetric governor 1220 - Driving sensor temperature water 1221 - Thermister gas oil 1253 - Electromagnetic sluice gate all or nothing EGR 1261 - Sensor position pedals accelerating 1276 - Heater gas oil 1310 - Flowmeter air 1313 - Sensor engine speed 1320 - Calculator engine control 1321 - Sensor of high fuel pressure 1331 - Injector rolls n° 1 1332 - Injector rolls n° 2 1333 - Injector rolls n° 3 1334 - Injector rolls n° 4 1620 - Velocity pick-up (*) vehicle 7306 - Driver safety RVV (clutch) 11 -- - Function lighting pre-heating 15 -- - Function cooling 43 -- - Function information containing hydrocarbon 65 -- - Function air-bag 72 -- - Function computer of edge 73 -- - Function RVV 80 -- - Function air-conditioning refrigeration (*) According to version


Citroen - Systeme D'Injection Hdi Bosch Edc 16 c3 Pour Moteur Dv4Td_en

Recommend Documents