Ko Ordinator

16:07-10 Issue 2.1

Coordinator Generation 3 Function description and troubleshooting troubleshooting

1 712 344

©

Scania CV AB 2001, Sweden

en

Contents

Contents

2

Function description

General ............................................ .................................................................. ......................... ... 3 Instrument panel parts .......................................... .............................................. .... 4 Main function ............................................ ........................................................... ............... 5 Why use Scania Diagnos? Diagnos? ........................................ ........................................ 5 An explanation explanation of CAN communication.................. 5 Interaction with other systems.................................. systems.................................. 6

Components

Component location................................................ location.................................................. .. 7 Accelerator pedal sensor........................................... sensor........................................... 8 Control for cruise control ......................................... .........................................9 9 Brake pedal pedal switches ....................................... .............................................. ....... 11 Clutch pedal switch ........................................... ................................................ ..... 12 Tachograph ........................................ ............................................................. .....................13 13 Indicator and and warning lamps .................................. .................................. 14 Diagnostic switch panel.......................................... panel.......................................... 15 Coolant temperature gauge..................................... gauge..................................... 16 Oil pressure gauge ......................................... .................................................. ......... 16 Bodywork equipment connector............................. connector............................. 17

Troubleshooting

Reading fault codes ........................................... ................................................ ..... 19 Clearing fault codes................................................ codes................................................ 19 Limitations................................................ Limitations......................... ..................................... .............. 19 Fault code 11 11 - 25 ............................................. ................................................... ...... 20

Electrical system

Connectors.............................................................. Connectors........................................................... ... 26 Input signals................................... signals.......................................................... ......................... .. 27 Output signals......................................................... signals......................................................... 28 Other signals........................................................... signals........................................................... 29 Wiring Diagrams ......................................... .................................................... ........... 30

© Scania CV AB 2001, Sweden

16:07-10

Contents

Contents

2


General ............................................ .................................................................. ......................... ... 3 Instrument panel parts .......................................... .............................................. .... 4 Main function ............................................ ........................................................... ............... 5 Why use Scania Diagnos? Diagnos? ........................................ ........................................ 5 An explanation explanation of CAN communication.................. 5 Interaction with other systems.................................. systems.................................. 6

Components

Component location................................................ location.................................................. .. 7 Accelerator pedal sensor........................................... sensor........................................... 8 Control for cruise control ......................................... .........................................9 9 Brake pedal pedal switches ....................................... .............................................. ....... 11 Clutch pedal switch ........................................... ................................................ ..... 12 Tachograph ........................................ ............................................................. .....................13 13 Indicator and and warning lamps .................................. .................................. 14 Diagnostic switch panel.......................................... panel.......................................... 15 Coolant temperature gauge..................................... gauge..................................... 16 Oil pressure gauge ......................................... .................................................. ......... 16 Bodywork equipment connector............................. connector............................. 17

Troubleshooting

Reading fault codes ........................................... ................................................ ..... 19 Clearing fault codes................................................ codes................................................ 19 Limitations................................................ Limitations......................... ..................................... .............. 19 Fault code 11 11 - 25 ............................................. ................................................... ...... 20

Electrical system

Connectors.............................................................. Connectors........................................................... ... 26 Input signals................................... signals.......................................................... ......................... .. 27 Output signals......................................................... signals......................................................... 28 Other signals........................................................... signals........................................................... 29 Wiring Diagrams ......................................... .................................................... ........... 30


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General The main task of the coordinator is to convey data to other control units, currently this is mainly the engine control unit, from those controls, pedals etc. that are operated by the driver in the cab. The coordinator also conveys information from the engine control unit out to gauges and lamps in the instrument panel (e.g. for oil pressure) and to other systems (e.g. Retarder). The coordinator is located in the cab. The engine control unit is located on the engine. The coordinator administers the signals to and from the components in the cab and communicates with the engine via the CAN circuit. This means that no separate cables are required between the cab and the control units for each individual i ndividual cab component.

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3


Instrument panel parts

Accelerator pedal sensor

2

Brake pedal switches

3

Make switch, clutch pedal

4

Control for cruise control

5

Oil pressure gauge

6

Coolant temperature gauge

7

Tachometer

8

Tachograph

9 10 11

Diagnostic panel Warning lamps Diode unit (D18)

12 Bodywork

equipment connector (C271)

13 Diagnostic

4

The above illustration shows those controls, pedals, gauges etc. that interact with the coordinator.

1

socket


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Main function The coordinator converts messages to signals and vice versa. The coordinator sends the vehicle speed signal as a message, via the CAN circuit, to other systems. The coordinator receives the messages concerning coolant temperature, oil pressure and engine speed from the engine control unit and sends an output signal about this to the instrument cluster.

We have chosen to call such information transferred via the CAN circuit, between the coordinator and other control units, messages. These cables convey different messages , between different control units, at different times. The information which goes to and from the coordinator in the form of voltage levels we call signals . Each component has its own connection to the control unit.

A PWM signal is sent from the coordinator to other systems with information on the amount of fuel supplied to the engine. The PWM signal is a message that the coordinator received from the engine control unit and then converted. The message states how much fuel is being injected into the cylinders (actual throttle actuation)

Why use Scania Diagnos? - Scania Diagnos can show all the fault codes that are generated in the coordinator, there is also the possibility of further information on those components that may be traced to the fault code. - The components that interact with the coordinator are described and an overview figure shows where those components are located. - Wiring diagrams for all the connections are available. - Many graphic symbols give better support when troubleshooting.

An explanation of CAN communication The coordinator and the engine control unit communicate with each other through the CAN circuit. The information in the CAN circuit cannot be checked by using a multimeter. However, it is still possible to measure at each current consumer (component) that is connected to the coordinator or the engine control unit.

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5


Interaction with other systems

The coordinator conveys information to and from the following components:

- diagnostic lamp/ diagnostic switch for engine control unit

- accelerator pedal

- warning lamp for engine

- brake pedal - clutch pedal

- special functions from the bodywork equipment connector

- control for cruise control

- the Retarder system

- coolant temperature gauge - oil pressure gauge - speedometer/tachograph - warning lamp for low oil pressure - diagnostic lamp/ diagnostic switch for Coordinator

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Components Component location

Component Description

Component Description

B1

Brake pedal switch 1

F 19

Fuse

B25

Throttle actuation switch

F 20

Fuse

B32

Clutch pedal switch

O1

Instrument cluster

B34

Brake pedal switch 2

O4

Tachograph

C2

Connector

O5

Tachometer

C23

Connector

O7

Coolant temperature gauge

C56

Distribution block

O8

Oil pressure gauge

C61

Connector

P2

Central electric unit

C190

Connector

S50

Diagnostic panel

C271

Bodywork equipment connector

S51

Control for cruise control

W4

Warning lamp for low oil pressure

W27

EDC indicator lamp

D18

Diode unit

D35

Potentiometer

E4

Pulse generator

E7

VPS control unit

E12

EDC control unit

E30

Coordinator control unit

G4

Earthing point

G13

Earthing point

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Accelerator pedal sensor - B25, B26 and D35

The accelerator pedal sensor supplies the coordinator with input signals. The coordinator interprets the input signals and sends information about these to other control units via the CAN circuit.

Accelerator pedal and accelerator pedal sensor

1

The accelerator pedal sensor consists of the following three components. 

Potentiometer (D35)

•

Throttle actuation switch (B25)

•

Kick-down switch (B26)

6 5 3 6 1 1

1

The potentiometer (D35) informs the Coordinator control unit about the accelerator pedal position. The potentiometer receives a supply voltage of approximately +5 V from control unit pin 28 and is then earthed via pin 24. The sensor sends a signal voltage to control unit pin 54. The voltage is directly dependent on how much the accelerator pedal is depressed.

Accelerator pedal sensor

down switch.

The throttle actuation switch informs the control unit pin 30 if the accelerator pedal is fully released or depressed. When the pedal is fully released, the throttle actuation switch is open. The control unit interprets this as a request for idling speed. The throttle actuation switch closes when the pedal is pressed down and earths pin 30 on the control unit. The kick-down switch is activated when the accelerator pedal is depressed from full throttle to the kick-down position. The coordinator does not receive any signals form the kick-

8


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Control for cruise control - S51

The control for the cruise control sends input signals to the coordinator. The coordinator interprets the input signals and sends information about these to other control units via the CAN circuit. Using the control for cruise control, the coordinator is informed of the speed the vehicle is required to hold.

7 6 7 0 _ 3 0

The control for cruise control is also used when adjusting idling speed or when using the functions for engine speed control. The control for cruise control has the following five functions. •

ON

•

OFF

•

ACC (accelerate, the speed of the vehicle increases)

•

RET (retard, the speed of the vehicle decreases)

•

RES (resume, the vehicle returns to the previously selected speed)

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There are only two cables between the control and the control unit. The cables are connected to the control unit pins 29 and 48. Each function gives a certain voltage level (refer to graph) which the control unit senses across the pins.

U (volt)

5

The voltage levels are created when the resistance in the circuit changes depending on which function is engaged.

4

OFF ON

3

The control receives a supply voltage of approximately +5 V from control unit pin 29 and is earthed via pin 48.

RET 2

RES 1

ACC 6 2 4 7 0 1

0

The different voltage levels of the cruise control functions.

10


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Brake pedal switches - B1 and B34

The brake pedal switches send input signals to the Coordinator. The Coordinator interprets the input signals and sends information about these to other control units via the CAN circuit.

The pedals

Brake pedal switches B1 and B34 sense when the brake pedal is depressed. The switches are connected so that one opens and the other closes when the pedal is depressed. They open/ close simultaneously when the pedal is lightly depressed, i.e. at the beginning of the pedal movement.

1 2

9 4 2 6 1 1

The switch that opens (B1) when the pedal is depressed is called brake pedal switch 1 and the switch that closes (B34) is called brake pedal switch 2.

1

Brake pedal switch 1 B1

2

Brake pedal switch 2 B34

B1, brake pedal switch 1, is connected between the Coordinator pin 52 and chassis earth. When the brake pedal is depressed, the earth connection to pin 52 is broken. B34, brake pedal switch 2, is connected between the control unit pin 53 and chassis earth. When the pedal is depressed, pin 53 is earthed.

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11


Clutch pedal switch B32

The clutch pedal switch supplies the Coordinator with an input signal. The Coordinator interprets the input signal and sends information about this to other control units via the CAN circuit.

The pedals

The clutch pedal switch (B32) senses when the clutch pedal is depressed. 1

The switch is connected between the Coordinator pin 50 and chassis earth. The switch closes and earths pin 50 when the pedal is lightly depressed, i.e. at the beginning of the pedal movement.

0 5 2 6 1 1

1

12


Clutch pedal switch B32

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Tachograph O4

The tachograph sends input signals to the Coordinator. The Coordinator interprets the input signals and sends information about these to other control units via the CAN circuit. The tachograph (O4) informs the Coordinator about vehicle speed. Vehicle speed sensing is a prerequisite for certain functions such as cruise control and speed limiter. The tachograph sends the vehicle speed signal to Coordinator pin 41. 1 2 1 0 _ 7 1

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Indicator and warning lamps W27 and W4

The Coordinator receives information from the engine control unit via the CAN circuit. The Coordinator switches the lamps on and off in the instrument cluster as required.

1

The Coordinator controls the following lamps: •

Indicator lamp for engine control unit (W27)

•

Low oil pressure warning lamp (W4)

2

EDC 8 4 4 6 0

Indicator lamp for EDC, truck

When starter voltage is switched on, the indicator lamps come on for a few seconds to check that they are intact. The indicator lamp receives voltage +24 V from Coordinator pin 2 and is earthed via pin 9.

14


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Diagnostic switch panel - S50

The Coordinator sends a message via the CAN circuit to the affected control units, which in turn return any registered fault codes. The Coordinator flashes the fault codes via the respective diagnostic lamp. At present, only the Engine Control Unit and Coordinator flashing codes are controlled by the Coordinator. Other diagnostic buttons are connected directly to their respective control unit. Using the diagnostic switches, it is possible to extract fault codes that may be stored in the memories of the control units. The fault codes are flashed out by the diagnostic lamp. The switches are also used for deleting fault codes.

E D C

The diagnostic panel switch is supplied with + 24V from fuse 4 in the central electrical unit to pin 3 of the diagnostic panel and is earthed via pin 4 of the diagnostic panel.

5 5 3 8 1 1

The engine system switch receives voltage from Coordinator pin 2.

Diagnostic switches.

Coordinator

Engine system

Switch, pin 10 on the diagnostic panel, is connected to Coordinator pin 12. The switch, which has a return spring, closes and earths pin 12 when it is depressed.

Switch, pin 6 on the diagnostic panel, is connected to Coordinator pin 9. The switch, which has a return spring, closes and earths pin 9 when it is depressed.

The Coordinator interprets this as a request to show any flashing codes and will flash them out by intermittently connecting pin 12 to earth in the required pulse sequence when the button on the panel is released.

The Coordinator sends a message to the engine control unit that the button is depressed and in return, the Coordinator receives which flashing codes to indicate.

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15


Coolant temperature gauge O7 The Coordinator receives information about the coolant temperature from the engine control unit via the CAN circuit. The Coordinator sends an analogue signal via pin 10 to the temperature gauge (O7) in the instrument cluster.

60

80

100 120

3 7 1 3 1 1

Oil pressure gauge O8

The Coordinator receives information about the oil pressure from the engine control unit via the CAN circuit. The Coordinator sends an analogue signal via pin 11 to the oil pressure gauge (O8) in the instrument cluster.

4 0

7

2 4 4 8 1 1

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Bodywork equipment connector (C271) There is a connector, C 271, in the central electric unit for engine control from bodywork equipment. C 271 is connected to the Coordinator. The Coordinator informs the engine control unit, via the CAN circuit, which pins have been earthed in C 271. The functions which can be connected to C 271 are: •

Engine speed control.

•

Torque limitation control.

•

Speed limiter 2 control.

•

Emergency stop control.

Engine speed Engine speed can be controlled by connecting a type of control to pin 1 and pin 5 in connector C 271. By earthing the pins as below the following functions can be achieved:

Pin

Function

Pin 1 and 5 not earthed

Normal hand throttle

Pin 1 earthed

Limited hand throttle

Pin 5 earthed

Raised idling speed

Pin 1 and 5 earthed

Fixed engine speed

More information about this function can be found in the Function description of the engine system.

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Torque limitation Engine torque can be controlled by connecting a control to pin 3 and pin 4 in connector C 271. By earthing the pins as below the following functions can be achieved:

Pin

Function

Pin 3 and 4 not earthed

No torque limitation

Pin 4 earthed

Torque limiter 1

Pin 3 earthed

Torque limiter 2

Pin 3 and 4 earthed

Torque limiter 3


18

Speed limiter 2

Emergency stop

Speed limiter 2 can be activated by connecting a control to pin 6 in connector C 271. It is activated when the pin is earthed.

Emergency stop can be activated by connecting a control to pin 2 in connector C 271. It is activated when the pin is earthed.


More information about this function can be found in the Function description of the Engine system.


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Troubleshooting

Troubleshooting Fault codes in the Coordinator Reading of fault codes can be carried out by using Scania Diagnos or the diagnostic lamp in the instrument panel.

Reading fault codes Switch on the ignition. Depress the diagnostic switch and keep it depressed for 2 seconds. When reading fault codes, a long flash indicates units of ten and a short flash indicates one unit. Example according to the illustration: Fault code 21 has the following flashes: Long long - short. If there are no fault codes registered the lamp will be on for 4 seconds. Depress the diagnostic switch once again to read the next fault code.

Clearing fault codes

fault. In cases of loose connections the fault may no longer be present; but the fault code is stored in the control unit memory until it is cleared. It is then possible to see in which circuit the fault occurred and look for the cause there, even if there is currently no fault.

Faults that do not generate a fault code If there is no information from the engine control unit about the coolant temperature, the gauge will show full heat, i.e. a maximum reading. No fault code is generated in the Coordinator. If there is no information from the engine control unit about the oil pressure, the gauge will show zero bars, i.e. no oil pressure. No fault code is generated in the Coordinator.

Clear all fault codes as follows:

1 Begin by switching off the ignition (15 supply).

2 Press in the diagnostic switch and keep it depressed.

3 Switch on the ignition (15 supply) whilst still depressing the diagnostic switch.

Limitations Despite the advanced software, a fault may arise which the control unit is unable to distinguish from normal operation. If this is the case, no fault code is generated. Fault codes may have been generated when a cable connection was disconnected whilst the ignition was on. This is quite a common occurrence. The control unit will then interpret it as a

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19

Troubleshooting

List of fault codes Fault code 11

Fault code 12

Fault

Fault

Prohibited signal from the accelerator pedal sensor potentiometer.

Prohibited deviation between the accelerator pedal sensor potentiometer and the throttle actuation switch.

Cause Too low or too high input voltage to pin 54.

Remarks The voltage from the potentiometer was below approximately 0.2 V or in excess of approximately 4.0 V. The supply voltage and the resistance in the accelerator pedal potentiometer may however vary between vehicles, therefore the values are not exact, only reference values.

Cause Input voltage on pin 54 is too low at the same time as pin 30 is earthed. Alternatively, input voltage on pin 54 is too high at the same time as pin 30 is not earthed. The voltage from the potentiometer was lower than 0.49 V while the throttle actuation switch was closed. Alternatively, the voltage was in excess of 0.90 V while the throttle actuation switch was open.

Remarks Action Check the accelerator pedal potentiometer, the connectors and wiring.

The values of the throttle actuation switch and the potentiometer must correspond. The potentiometer may not indicate throttle actuation whilst the throttle actuation switch indicates idling speed.

Action Check the potentiometer and the throttle actuation switch. Check the connectors and wiring.

20


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Troubleshooting

Fault code 13

Fault code 14

Fault

Fault

Prohibited signal from the control for cruise control.

No communication with the engine control unit.

Cause

Cause

Voltage too low or too high between pins 29 and 48. The fault may also be a prohibited voltage level between the following functions: ACC, RES, RET, ON and OFF.

Communication between the engine control unit and the coordinator control unit has been broken.

Remarks Remarks Cruise control and engine idling speed adjustment will not function as long as the fault is present. The control unit interprets the voltage level as follows:

The indicator lamp for engine control comes on. Fault codes from the engine cannot be read.

Action Check the connectors and wiring.

0.7 - 0.9 V: ON+ACC, (14.4 - 18.3% of the supply) 1.6 - 1.7 V: ON+RES, (31.2 - 35.1% of the supply) 2.5 - 2.7 V: ON+RET, (49.6 - 53.5% of the supply) 3.3 - 3.5 V: ON, (66.4 - 70.3% of the supply) 3.7 - 4.3 V: OFF, (74.2 - 85.9% of the supply) The voltage levels shown above apply to 5 V supply. The supply voltage may however vary between vehicles. The fault code is generated in the event of voltage levels outside these ranges.

Action Check the control, connectors and wiring.

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21

Troubleshooting

Fault code 17

Fault code 18

Fault

Fault

The connection to the tachograph is broken or short circuited.

The brake pedal switches 1 and 2 have supplied conflicting signals on the position of the pedal. One switch has indicated that the pedal was released while the other switch has indicated that it was depressed.

Cause The input signal to pin 41 is missing or the voltage level is too low or too high. The fault code can only be generated when the road speed is 0 km/h.

Remarks When the road speed is 0 km/h the control unit carries out a connection test with the tachograph. If the test shows prohibited measurements the fault code is generated. Only the system that limits maximum road speed may be connected to tachograph output D3.

Cause Both pins 52 and 53 have been earthed at the same time or neither of them have been earthed at the same time. Both brake pedal switches have been closed or been open at the same time for more than five minutes.

Remarks The cruise control and engine idling speed adjustment will not function as long as the fault is present.

Action Check the operation of the tachograph. If the tachograph is functioning correctly, check the wiring between the tachograph and the control unit.

22

Action Check the switches, the connectors and wiring.


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Troubleshooting

Fault code 19

Fault code 21

Fault

Fault

Short circuit of the PWM signal from the engine concerning the amount of fuel supplied to the engine.

Short circuit of the signal to the coolant temperature gauge.

Cause Cause The signal from the output is short circuited to supply voltage. The fault code is generated if the fault has been active for longer than 10 seconds.

The signal from the output is short circuited to supply voltage. The fault code is generated after the fault has been active for longer than 10 seconds.

Remarks Remarks When this fault code is generated, fault codes may also be generated in other control units.

If this fault occurs the gauge will begin to indicate a lower temperature.

Action Action Check the connectors and wiring.

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Check the instrument cluster, the connectors and wiring.


23

Troubleshooting

24

Fault code 22

Fault code 23

Fault

Fault

Short circuit of the signal to the oil pressure gauge.

Short circuit of the signal to the oil pressure warning lamp.

Cause

Cause

The signal from the output is short circuited to supply voltage.

The signal from the output is short circuited to supply voltage.

The fault code is generated after the fault has been active for longer than 10 seconds.

The fault code is generated after the fault has been active for longer than 10 seconds.

Remarks

Remarks

If this fault occurs the gauge will begin to indicate a higher pressure.

If this fault occurs the warning lamp will not come on.

Action

Action




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Troubleshooting

Fault code 24

Fault code 25

Fault

Fault

Short circuit of coordinator pin 2.

The ways in which the coordinator and the engine control unit communicate differ.

Cause The signal from the output is short circuited to earth The fault code is generated after the fault has been active for longer than 10 seconds.

When the fault occurs the EDC warning lamp does not come on as this is connected to the output.

Check the connectors and wiring.

The coordinator does not have the support to give the engine control unit the information it requests.

Remarks

Remarks

Action

Cause

The fault code may be generated for example in connection with one of the control units being renewed with a spare part control unit. A coordinator can adapt itself to older engine control units but not to newer ones. A newer engine control unit may for example request information that an older coordinator cannot supply.

Action Ensure that the new control unit is of the same version as the old one.

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25

Electrical system

Electrical system Connector

Connector

6 6 9 6 1 1

Removing tool 588 219, for smaller pins

7 3 4 8 1 1

Removing tool 588 192, for larger pins

26


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Electrical system

Input signals The table below shows which input signals the control unit receives.

n i 2 3 9 0 6 0 1 0 1 2 3 4 7 0 1 P 7 8 9 1 1 2 3 3 4 4 5 5 5 5 5 5 6 6

) ) ) ) ) ) ) ) ) ) ) ) V V V V V V V V V V V V e ) 0 0 0 0 0 0 0 0 0 0 0 p + ( ( ( e ( ( ( y ( ( ( ( e ( 0 ( c y U g g g g g u g g g n g g g g u t ( n i n i n g n i n i n g i n e i n i n i n n n i l o h i o V i a V V i u l h h h h h h l h h h h h t t t q t n 4 4 t a t t r t r a 4 t r t r t r t r g 2 2 r a n r a r a e a r a r a r r a a a a n 2 a a i S + + E E E A E E E F E E E E A + E E r r r r o o t o o t t t c c c c e e e e n l n n n n n n n h o o o o r t c o c t c c c t n i t t t n 2 n n n p e o e 1 h s e e c w h c m c h m c m e m m t n l t i a s p i i p i p p t i i o i l e i i w t r n w u u u s u r a u s w s r o a q q q q e l c t u p t l l e e e e t a h a r e a a t c d c c k p k k i i o a k d d e r r r r a m t f n d i e e s o l l p o p p i o e o o r n g e 0 u i o t o t w w w h w c 2 e o c y e e n r t y y h y t r e d C n k t g o t d k e d n d d r u s i o a u o a r a r o D i o o h o o c a l o u S F D E D B C T B B T C B B B P

s l a n g i s t u p n I

r r o t o t c e c e n n n n o c o c t t n e n e m m p i p i u u q e q e k k r r o o w w y y d d o o B B

e l t t o r h t n d o l n i t a o 2 1 r c h t r r n n e e d l l u t t o f n i i a a c a d p m t m 2 l d e e e i i n o l l d s o p t p e r i l r r s l e e e t r t e u a a e m e u u r o t q i n t o y d d l e p t ) c q t c o e e a s d t c a r s v y f m n e r r l p p r e o o h h o o i d l e o e e e u t t p t t r e c c l l e e a m g s e p q p n i t r d e i h r k k o t i s r e l u o o e r c c e a a u r a s e w f f w r r e d c c r g e s s d l m l b b a d p c a i n 5 m c c n h e s a e a e a f d l n t p e 1 d d d i i e n ( g t t h o e d s s e e g s p g t s s d l s i i e e e s s d s e i n a t s t o o s s s s e a e e e s s g o d a e o t a e n n t r g t i n t c i e v v i t r a r r r t k i g g i e s n u i t t p p p i u t p n s i i s a a m d i c e e e l p c i i i o e a p a n g i n I n I n A D D D d n A D D D L C D R I I I T I

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. d e s s e r p e d s i l a d e p r o t a r e l e c c a e h t h c u m w o h n o g n i d n e p e d . g . e

, s e i r a v l a n g i s e h T *

27

Electrical system

Output signals The table below shows which output signals the control unit can deliver.

n i 0 1 5 8 P 2 6 1 1 1 1

l

a e n e e p y g u u c y i t n s g g l e o o a V u V l l n 4 M a a 4 q g 2 W n n 2 e i r S + P A A + F

e g u a g p s e r e u g t m t i a n u l u a a p r l r e g o p o m r e n t a r m r l a t e o i c t e u i n t d o t s g e s a n c t n m n i n i r a e r o i l t C e p n h r o s t o l e D h i a c a D E O C O W T

r r r r e t e t e t e t s s s s p u l u l u l u l m c c c c a t t t t l n r e n e n e n e o t m m m a e u u u m u c r t r t r t r i m t d l s s s s u n o i n i n i n i n i v o t o t o t o s C l t l l l l a D e l a a a u a n E f n n n n g r i g g i g i g d o i i s e f s s s s t t t t t a t y l u l u u u u p k p u p p p p t s p g t t t t u a u e u u u u O T S R O O O O

28

. e r u t a r e p m e t t n a l o o c e h t n o g n i d n e p e d . g . e

, s e i r a v l a n g i s e h T *


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Electrical system

Other signals The table below shows the control unit connections for voltage supply, system earth, communication cables etc.

n i 1 3 4 6 8 P 1 2 2 2 2 2

5 8 9 5 4 4 4 6

) s e ) V g V e 0 a 0 p ( s ( y g s e g t n n l i i / a h M V h a t n t V t r r g a a a V 4 2 5 i S E D E 0 + +

s e g a s s e M / V a a t t a V 4 2 a D 0 + D

n o i t a n i t t s i e u c D r / i e c c r N 3 u 3 o 1 A 1 S G C G

l o r t n o c e s i u r t i c r u o c f r i 9 l e c l o 1 b r N t n e a A o s u c C C F K

r e t e m o 9 i 1 t n e e s t u o F P

e l t . t ) o r y l h l p t o r p e t u h n s t o 0 i n c 3 e ( r y t e s l i t p i t u i e p n r n u u c m u s l o e l i l o h r t o a t t t t t n r i i d n r e n n e t o o u u p c o f n o c p l l r l e o h e o o o e t r r r t h t t a t h t t n n r n r e o o o o o f t c n o c l c t e n n y l y i y i e i e c e l o o h o h s l c l h t t p p p t t t a t r a p a p o a f a f p n c c f c f u u u s i i i o o o o g s s s i n n n g u g g e e e u g e n s n n i n g g s n g u r i i i m m l a t a a a m h h h e k h t t t t t l l l m m m s t h r r r r t a a o a a o o d e o a o o O T E C E E V V p C E V C

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29

Electrical system

Wiring Diagrams Current path 1 - 25

Current path 26 - 50

30


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Ko Ordinator

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