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Features Cover Page Information Component Table Tap Table Fluid Power Symbols Electrical Symbols
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EC-C1
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SENR1729-02 May 2008
D 6 R T r a c t o r (D (Di f f St e e r ) El e c t r i c a l Sy s t e m 4FM1-UP
9PN1-UP
8TM1-UP
DMP1-UP
9BM1-UP
4TR1-UP
3ZN1-UP
5PR1-UP
5LN1-UP
5RR1-UP
7KN1-UP
7DR1-UP
9MN1-UP
7GR1-UP
© 2008 Caterpillar, All Rights Reserved
Printed in U.S.A.
COMPONENT LOCATION Schematic Location
Machine Location
Schematic Location
Machine Location
Alarm - Action
A-4
A
Sender - Trans Output Speed 1
A-9
21
Alarm - Backup
D-12
1
Sender - Trans Output Speed 2
A-9
21
Alternator
B-1
2
Sensor - Brake Position
A-5
22
Battery
F-12
3
Sensor - Direction
F-7
C
Breaker - Alternator (80A)
E-11
D
Sensor - Transmission Temp Temp
A-6
23
Breaker - Aux (20A)
E-11
D
Solenoid - A/C Clutch
B-1
5
Breaker - Blower (20A)
F-11
D
Solenoid - ECPC Pump
A-11
24
Caterpillar Monitor
C-4
A
Solenoid - First Gear Clutch 5
B-8
21
Control - ECB
B-11
C
Solenoid - Forward Clutch 2
B-8
21
Converter - 24V to 1 2V
D-10
4
Solenoid - Left Brake
C-8
25
Diode (A/C Clutch)
B-1
5
Solenoid - Left Steer Clutch
C-8
25
Fuses
E-11
D
Solenoid - Park Brake Dump
C-8
25
Gauge Cluster
C-4
A
Solenoid - Reverse Clutch 1
B-8
21
Horn - Forward (2)
F-1
6
Solenoid - Right Brake
C-8
25
Indicator - Auto Downshift
B-6
A
Solenoid - Right Steer Clutch
B-8
25
Indicator Strip
C-6
A
Solenoid - Second Gear Clutch 4
B-8
21
Lamp - Action
C-4
A
Solenoid - Serv Brake Dump
C-8
25
Lamp - Pipe
D-4
A
Solenoid - Third Gear Clutch 3
B-8
21
Motor - Blower (2)
B-3
7
Starter
C-2
14
Motor - Condenser (2)
B-12
8
Switch - Auto Downshift
B-6
A
Motor - Washer (Front, Rear, Left, Right)
D-11
9
Switch - Bidirectional Mode
B-6
A
Motor - Wiper (Front)
E-4
10
Switch - Blower
C-6
A
Motor - Wiper (Left)
E-5
11
Switch - Disconnect
F-12
26
Motor - Wiper (Rear)
D-8
12
Switch - Downshift
E-7
C
Motor - Wiper (Right)
B-6
13
Switch - Engine Oil
D-2
27
Relay - Condenser
B-12
8
Switch - Horn (Forward)
B-5
B
Relay - Main
F-11
D
Switch - Key Start
C-5
A
Relay - Start
F-10
D
Switch - Lamp
D-5
A
Resistor (Gauge Cluster)
D-4
A
Switch - Operator Monitor
B-5
A
Resistor (Starter)
C-2
14
Switch - Parking Brake
E-7
C
Resistor - Blower
B-3
7
Switch - Power Train Filter
A-8
27
Sender - Coolant Temp
D-2
15
Switch -Refrigerant
C-1
5
Sender - Engine Speed
E-1
16
Switch - Reverse
D-7
C
Sender - Fuel Level
D-12
17
Switch - Service Brake Pedal
B-5
22
Sender - Hydraulic Oil Temp
A-8
18
Switch - Start Aid
C-6
A
Sender - Powertrain Oil Temperature
A-11
19
Switch - Upshift
E-7
C
Sender - Trans Input Speed
A-11
20
Switch - Wiper (Front, Rear, Left, Right)
A-8
28
Sender - Trans Intermediate Speed 1
A-9
21
Thermostat
B-3
5
Sender - Trans Intermediate Speed 2
A-9
21
Component
Machine location are repeated for components located close together A = Operator Compartment - Front Dash B = Operator Compartment - Right Console C = Operator Compartment - Left Console D = Operator Compartment - Fuse Panel
Component
CONNECTOR LOCATION LOCATION Schematic
Machine
Location
Location
CONN 1
C-12
29
CONN 2
C-12
30
CONN 3
D-12
31
CONN 4
F-12
26
CONN 5 ECB Harness Harness Connector Connector
C-11
C
CONN 6
D-11
36
CONN 7
A-10
30
CONN 8
B-10
30
CONN 9
F-10
D
CONN 10
A-9
21
CONN 11
B-9
21
CONN 12 Diagnostic
F-9
26
CONN 13 Aux Ckt Plug
D-8
30
CONN 14
A-8
32
CONN 15
B-7
37
CONN 16
B-7
37
CONN 17
D-7
C
B-5
33
CONN 19
B-5
22
CONN 20 Harness Code
B-5
A
CONN 21
Monitor Service
C-5
A
CONN 22 Datalink Service
C-5
A
CONN 23
E-5
A
CONN 24
B-3
A
CONN 25
D-3
A
CONN 26
D-3
34
CONN 27
D-2
35
CONN 28
E-2
34
CONN 29
F-2
34
CONN 30
F-1
35
Connector Number
CONN 18
Winch Lamp
The connectors shown in this chart are for harness to harness connectors. Connectors that join a harness to a component are generally located at or near the component. See the Component Location Chart.
CID / MID / FMI
Component Identifiers (CID) List CID
Component
Caterpillar Monitoring System MID 30 0096 0110 0177 0248 0263 0271 0324 0600 0601 0819 0821 0830
Fuel Level Sender Engine Coolant Temperature Se Sensor Torque Co Converter Oi Oil Te Temperature Se Sensor Data Link Sensor Power Supply Action Alarm Action Lamp Hydraulic Oil Temperature Sensor Brake Air Pressure Display Data Link Display Power Supply Brake Oil Temperature Sensor
Power Train Electronic Control System MID 113 70 75 168 177 190 248 254 269 298 299 368 468 573 618 621 622 623 650 671 672 673 674 675 676 677 681 689 690 691 692 693 694 695 697 698 699 718 722
Parking Brake Switch Steering System Oil Temperature Sensor Electrical System Transmission Oil Temperature Sensor Engine Speed Sensor Data Link Electronic Control Module Sensor Power Supply Service Brake Switch Direction Se Selector Po Position Se Sensor Autoshift Switch - Power Train Service Br Brake Pe Pedal Po Position Se Sensor Inching Pedal Position Sensor Parking Brake Switch Downshift Switch Upshift Switch Reverse Switch Harness Code Transmission Output Speed 1 Sensor Torque Converter Output Speed Sensor Transmission Output Speed 2 Sensor Transmi ss ssion Intermediate Speed 1 Sensor Transmi ss ssion Intermediate Speed 2 Sensor Left St Steering Le Lever Po Position Se Sensor Right Steering Lever Position Sensor Parking Brake Solenoid Left Steering Brake Solenoid Right Steering Brake Solenoid Reverse Clutch Solenoid Valve 1 Forward Clutch Solenoid Valve 2 Speed 3 Clutch Solenoid Valve 3 Speed 2 Clutch Solenoid Valve 4 Speed 1 Clutch Solenoid Valve 5 Priority Valve Solenoid Left Steering Clutch Solenoid Valve Right Steering Clutch Solenoid Valve Transmi ss ssion Uni de dentifiabl e Failure Mode Secondary Br Brake So Solenoid Va Valve
Failure Mode Identifiers (FMI)¹ List FMI No.
Failure Description
0
Data vali valid d bu but abo above ve norm norma al op operat eratio ion nal range ange..
1
Data vali valid d bu but bel belo ow no normal oper operat atio iona nall ra range nge.
2
Data errati ratic c, in inter termitt ittent ent, or or inc incorr orrect ect.
3
Voltage above no normal or or shorted high.
4
Voltage be below normal or or shorted lo low.
5
Current below normal or or op open ci circuit.
6
Curre rrent abov above e nor normal or groun rounde ded d cir circuit uit.
7
Mechani hanica call sy system no not res resp pond onding ing pr properly erly..
8
Abno Abnorrmal freque equenc ncy y, pul puls se wid widtth, or perio eriod d.
9
Abnormal update.
10
Abnormal rate of change.
11
Fail ur ure mode not identifi ab able.
12
Bad device or component.
13
Out of calibration.
¹The FMI is a diagnostic code that indicates what type of failure has occurred.
Monitoring System Service Modes Service Mode
Number
Normal
0
Harness Code
1
Numeric Readout
2
Service
3
Tattletale (Log)
4
Steering Brake Calibration
5
Transmission Calibration
6
Component Data Display
7
Charging System Display
8
SPECIFICATIONS AND RELATED MANUALS
Off Machine Switch Specification Part No.
Function
Actuate
Deactuate
Contact Position
9X-7 X-7781
Pow Power Tra Train in Filt Filte er Pre Press ssur ure e
210 ± 70 kPa (30 ± 10 psi)
-
Normally Open
114-5 14-533 333 3
Refr Refrig iger eran antt Pres Pressu sure re (AC) (AC)
275 to 1750 kPa ¹ (40 to 255 psi)
-
Normally Open ²
3E-2026
Engi ne ne Oil P re ressure
60 kPa MAX (8.7 psi MAX)
38 ± 20 kPa (5.5 ± 2.9 psi)
Normally Open
3E-6 3E-642 425 5
Cool Coolan antt Tem Tempe pera ratu ture re (Sta (Start rt Aid) Aid)
38 ± 3°C (100.4° ± 5.4°F) 5.4°F)
27 °C MIN (80.6°F MIN)
Normally Closed
¹ With increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the closed condition can be maintained down to 170 kpa (25psi). ² Contact postion at the contacts of the harness connector.
Resistor, Resistor, Sender and Solenoid Specifications Part No.
Component Description
Resistance (Ohms)¹
3E-5239
Relay - Condensor
360
101 -7740
Relay - Main Power
53. ± 5.3
125-1302
Relay - Start
27.5 ± 2.8
116-6203
Resistor - Gauge
9G-1950
Resistor - Blower Motor Speed
3E-7842
Resistor - Starter/Diagnostic Conn
150 ± 7.5
134-3999
Solenoid - A/C Clutch
17.6 ± 0.6
3E-6332
Solenoid - Start Aid
20 ± 1 Overall 2.0 ± .1; Tap 1.0 ± .05
6
¹ At room temperature unless unless otherwise noted. noted.
Related Electrical Service Manuals Title
Form Number
Alternator 132-2156
SENR4547
Caterpillar Monitoring System
SENR6717
Starting And Charging Systems Starting Motor 6V-5227: Consist: 6V-5537 106-8552 6V-5538 Electronic Clutch Brake Control
SENR2947
SENR3581 SENR3536 SENR4975 SENR8367
HARNESS and WIRE Electrical Schematic Symbols Symbols
T
Pressure Symbol
Temperature Symbol
Level Symbol
Circuit Breaker Symbol
Flow Symbol
Symbols and Definitions Fuse: A component in an electrical circuit that will open the circuit if too much current flows through it. Switch (Normally Open): A switch that will close at a specified point (temp, press, etc.). The circle indicates that the component has screw terminals and a wire can be disconnected from it. Switch (Normally Closed): A switch that will open at a specified point (temp, press, etc.). No circle indicates that the wire cannot be disconnected from the component. Ground (Wired): This indicates that the component is connected to a grounded wire. The grounded wire is fastened to the machine.
Ground (Case): This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine. Reed Switch: A switch whose contacts are controlled by a magnet. A magnet closes the contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
T
Sender: A component that is used with a temperature or pressure pressure gauge. The sender measures the temperature or pressure. pressure. Its resistance changes to give an indication to the gauge of the temperature or pressure.
Relay (Magnetic Switch): A relay is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close the switch part of the relay.
Solenoid: A solenoid is an electrical component that is activated by electricity. electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open open or close a valve or move a piece of metal metal that can do work. Magnetic Latch Solenoid: A magnetic latch solenoid is an electrical component that is activated by electricity and held latched by a permanent magnet. It has two coils (latch and unlatch) that make electromagnet when current flows through them. It also has an internal switch that places the latch coil circuit open at the time the coil latches.
Harness and Wire Symbols Wire, Cable, or Harness Assembly Identification: Includes Harness Identification Letters and Harness Connector Serialization Codes (see sample).
Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...) Harness Connector Serialization Code: The "C" stands for "Connector" and the the number indicates which connector in the harness (C1, C2, C3, ...).
L-C12 3E-5179
AG-C4 111-7898
L-C12 3E-5179
1
Part Number: for Connector Plug
Part Number: for Connector Receptacle
2 Plug
Receptacle Pin or Socket Number
5A
1 2
Deutsch connector: Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
1 2
Sure-Seal connector: Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.
Fuse (5 Amps)
9X-1123
Component Part Number
325-AG135 PK-14 Harness identification code: This example indicates wire group 325, wire 135 in harness "AG".
Wire Gauge Wire Color
