Wire Color
Power Circuits
Description
Control Circuits (Continued)
101
RD
Bat (+)
792
OR
PHS Joystick Grip Control
102
RD
Hd Lmp
793
YL
Implement Disable Sw
103
RD
Hd Lmp
794
YL
Aux Diverter Relay
105
RD
Key Sw
795
YL
Quick Coupler Relay
108
RD
Bat (+) TO Product Link
796
BR
PHS Joystick Grip Control
109
RD
Alt Output (+) Term.
797
PU
Platform Mode Switch
111
RD
Bat (+)
798
GN
Mode Sw
112
PU
Main Power Rly Output
799
WH
PHS Valves +10V
114
RD
Warning Horn (Forward)
A700
OR
Accelerator
116
BR
Frame Level/Tow
A701
GY
Not Used
117
YL
Lift Pump Bat (+)
A702
PU
Not Used
118
GY
Front Wiper Motor
A703
BR
Not Used
Accelerator
Connector Location
119
PK
Wiper Motors Sw Pwr
A704
GN
Not Used
121
YL
Accessory Socket
A705
BU
Not Used
122
BU
Fuel Inj Relay
A706
GY
Not Used
123
WH
Cold Start Relay
A707
PU
Not Used
CONN 1
124
GN
A/C Blower Low
A708
BR
Not Used
CONN 2
125
RD
RH Tail Lamp
A709
OR
Not Used
CONN 3
127
OR
Boom Floods
A710
GY
Air Restriction Indicator
CONN 4
Connector Number
128
PK
A/C Blower Hi
A711
PU
Not Used
CONN 5
130
GN
Cab Floods 2
A712
BR
Not Used
CONN 6
131
BR
Cab Floods 1
A746
PK
Not Used
CONN 7
133
OR
PHS
C712
BR
Right Stabilizer Down Press SW
CONN 8
134
RD
Fuel Pump Relay
C713
GY
Left Stabilizer Down Press SW
CONN 9 Service Port
135
BU
Radio Pwr
C743
PK
Parking Brake Sw Disengaged
CONN 10
136
GN
Aux Ckt
C744
PU
Parking Brake Sw Engaged
CONN 11
141
PK
Seat
E798
PK
Not Used
CONN 12
144
GN
Beacon
F700
BU
Not Used
CONN 13
147
PU
Aux Div Pwr
F701
BR
Not Used
CONN 14
150
RD
Engine ECM Bat (+)
F702
GN
Accelerator Signal
CONN 15
157
YL
Turn Indicator Sw Pwr
F703
GY
Not Used
CONN 16
161
RD
Hazard Indicator
F705
PK
Not Used
CONN 17
165
YL
Diff Lock Foot Sw
F706
PU
Not Used
CONN 18
167
OR
F707
WH
Not Used
CONN 19
Ground Circuits
F708
YL
Not Used
CONN 20
Access Platform ECM
200
BK
Main Chassis
F709
BU
Not Used
CONN 21
205
BK
Chassis
F710
BR
Lift Pump
CONN 22
229
BK
Engine
F711
GN
Can Link +
CONN 23
A278 304
BK WH
Fuel Pump Return
F712
GY
Can Link -
CONN 24
Basic Machine Circuits
F713
OR
Not Used
CONN 25
Starter Relay No. 1 Output
F714
PK
Not Used
CONN 26
306
GN
Starter Relay Coil
F715
PU
Not Used
CONN 27 HA-C3 TO HC-C4
307
OR
Key Switch
F716
WH
Not Used
CONN 28
308
YL
Main Power Relay Coil
F717
YL
Not Used
CONN 29
310
PU
Start Aid SW To Start Aid Sol
F718
BU
Not Used
CONN 30 HK-C1 TO CR-C45
317
YL
Cold Start Relay
F719
BR
Not Used
CONN 31
321
BR
Bckp Alarm
F720
GN
Not Used
CONN 32 CR-C2 TO CH-C1
322
GY
Warning Horn (Forward)
F721
GY
Not Used
323
WH
Fuel Pump Power
F722
OR
Not Used
324
BU
Differential Lock Sol
F727
BU
Not Used
325
PK
Fuel Pump Relay Cut-out
F729
GN
Air Restriction Indicator
327
PK
Shutdown Solenoid
F770
BR
Fuel Injection Pump
329
YL
Fuel Pump To Sw
G750
BU
Shuttle Control Fwd
332
BU
Shutdown Sw To Shutdown Ctrl
G755
GY
Shuttle Control Rev
352
BU
Start Relay No.1 Resistor To Diagnostic
G757
OR
Xmsn Neutralizer Sw 2
362
PU
Engine Shutdown Signal A
H730
BR
Reverse Output - Shuttle Control
375
BR
Cold Start Relay to Eng ECM
H731
GY
Forward Output - Shuttle Control
A309
GY
Fuel Lift Pump
H750
BR
Front Axle Center
A310
BU
Transmission Temp Sw V+
H751
OR
Rear Axle Align Sw
H764
GY
Circle Steer Relay
Monitoring Circuits 403
GN
Alternator (r) Term.
H765
WH
Crab Steer Relay
405
GY
Mach Cont Oil Press.
J755
BU
Left Frame Level Solenoid Return
428
OR
Opr Mon Xmsn Oil Temp
J756
BR
Right Frame Level Solenoid Return
430
BU
Opr Mon Air Filter
J758
PK
Frame Level Solenoid
441
OR
Eng Coolant Temp Gauge
J760
YL
Frame Level Solenoid
443
YL
Power Train Temp Gauge
J764
BR
Oil Filter Bypass Sw
447
PK
Fuel Level Gauge
J766
PU
Platform Mode Switch
A487
PU
Opr Mon Fault Alarm #2
K745
YL
Rear Axle Lock
C444
YL
Alternator Indicator Lamp
L730
OR
Oil Press Sensor
E450
GN
Oil Filter Bypass Sw
L731
BR
Coolant Temp Sender
L740
BR
XMSN Oil Temp Sender
Accessory Circuits 500
BR
Wiper - Front (park)
X731
BU
I n take Manifold Temp Sender
501
GN
Wiper - Front (low)
X750
OR
Fwd/rev Sol. Return From Controller
502
OR
Wiper - Front (hi)
X753
YL
Left/right Steering Sol.return
503
BR
Wiper - Rear (park)
Y758
PK
PHS Address Out
504
YL
Wiper - Rear (low)
Y759
YL
PHS Address In
506
PU
Washer - Front
Y760
PU
PHS Address In
507
WH
Washer - Rear
Y761
OR
PHS Address In
508
PU
Radio Speaker - Left
Y787
WH
PHS Valve
509
WH
Radio Speaker - Left (commom)
Y788
GY
PHS Valve
511
BR
Radio Speaker - Right
Y792
PK
Fuel Injection Pump
512
GN
Radio Speaker - Right (common)
Y793
YL
Fuel Injection Pump
513
OR
A/CCompressor/Refrigerant Press Sw
851
WH
Boom Limiting Sig
515
GY
Blower Motor (hi)
852
GN
Cont Flow
516
GN
Blower Motor (medium)
854
PK
Boom Angle Sw
517
BU
Blower Motor (low)
856
GN
Trigger Sw Parity
518
OR
Hazard Flasher To Sw
859
YL
Rear Axle Return Relay
519
PK
Thermostat To Refrigerant Press. Sw
863
BU
Cab/Platform Indicator Sw
521
YL
A/c Sw To Refrigerant Sw
867
PU
PHS Joystick Grip Control
522
WH
A/c Clutch To Thermostat Sw
869
PU
Cont Flow Sw
523
BR
Roof Wiper
870
OR
Frame Interlock Relay
524
BU
Roof Wiper
874
GY
LSI Sensor
529
WH
Roof Washer
892
BR
Cat Data Link (-)
536
WH
Hazard Sw To Turn Sw
893
GN
Cat Data Link (+)
567
WH
A/C Blower Sw
F846
PU
Mach Security Red Led Sig
A515
BR
Blower Motor #2 (hi)
G848
GN
Mach Security Green Led Sig
A516
PK
Blower Motor #2 (med)
H802
GY
Proportional Driver Return (5-8)
C547
OR
Blower Motor (med-low)
J811
BK
On/off Return
E554
PK
A/C Controller To A/C Compressor Clutch
J843
BK
Mach Security Led Ground
Lighting Circuits
J844
GY
+5 Volt Analog
Rotary Beacon
J847
GN
Monitor Alarm
603
PK
604
OR
Stop Lamp
N805
BU
Access Platform Load Liminting
605
YL
Turn Lamp - Left
N806
BR
Access Platform
606
GY
Turn Lamp - Right
T800
OR
+8v Digital Sensor Power
608 610
GN OR
Flood Lamp - Rear Head Lamp Basic
900 901
PU WH
PU
Head Lamp Hi
902
BR
Xmsn Shift Sol
GY
Backup Lamp
911
YL
Steer Mode Sel Sw
614
PU
Park/tail/Dash/Lamp
913
BU
Front Wiper Sw
615
YL
Cab Flood Lamp/Rops
958
YL
Solenoid QC
616
BU
Bucket Flood Lamp/boom Flood Lamp
959
WH
Arc Supp QC
617
BR
Tail/position Lamp - Left (road Pkg)/width
975
WH
Sol Return
618
YL
Tail/position Lamp - Right (road Pkg)/width
985
GY
Crab Ster Relay
619
GN
Head Lamp Lo
986
OR
Solenoid Circle
627
YL
Fog Lamp
987
WH
Diverter Sol
649
YL
Light Sw To Park/tail Lamp Breaker
990
GN
Diverter Sol
Aux Active Lamp Control Circuits
991
WH
Shift Rail Sensor
993
BR
Accelerator
750
GN
Platform Mode Switch
994
GY
Oil Pressure Sensor
751
GN
Xmsn Shift Sol Fwd
995
BU
Coolant Temperature Sensor
752
YL
Xmsn Shift Sol Rev
753
GY
Cab Platform Sel Sw
754
BU
Xmsn Shift Sol No. 3 Or 1
997
OR
Machine Location
K-8 K-18 L-18 D-17 B-17 B-16 D-16 D-16 K-15 D-13 F-13 F-13 K-13 L-13 L-12 L-12 D-6 H-10 H-10 D-9, D-11 K-8 B-5 J-5 J-4 J-3 K-3 A-15 C-7 B-2 D-16 C-1 C-2
39 A A 29 30 35 30 30 A A A A A A A A E A A F A E 40 40 31 G 41 E 33 30 8 8
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.
Schematic Location
Component
Machine Location
F-7
27
Sensor - Oil Pressure
C-8
E
Accessory Socket
K-14
42
Sensor - Rear Axle Center
B-17
25
Adapter - Socket
L-17
36
Sensor - Rear Axle Critical Angle
C-18
22
Alarm - Backup
C-18
28
Alarm - Monitor
H-5
C
Sensor - Shift Rail 1-3 Sensor - Slave
C-11 K-2
F G
Alarm - Platform
I -2
G
Sensor - TC Oil Temp 2
B-11
F
Alternator
C-6
2
Sensor - TC Oil Temp.
C-11
F
Arc Supply - Circle
H-4
3
Sensor - TC Out Sp
D-10
F
Arc Supply - Crab Backlight Sig Com
I-4 H-5
3 B
Sensor - TC Out Sp 2
D-11
F
Sensor - TC Temp.
C-11
F
Battery 1 - 2
A-6
4
Sensor - TCO SP
D-10
F
Beacon 4
L-17
36
Sensor - VLPM
D-8
E
Block - Fuse 1
H-16
D
Sensor - XMSN Int. Sp 1
D-10
F
Block - Fuse 2
F-16
D
Sensor - XMSN Oil Temp. 1
D-11
F
Block - Relay 1
I-16
D
Sensor - XMSN Oil Temp. 2
D-10
F
Block - Relay 2
G-16
D
Sensor - XMSN Out Speed
D-11
F
Breaker - Alt.
B-6
5
Solenoid - 3 SP 1
A-10
F
Breaker - Main
B-6
5
Solenoid - 4 SP 2
A-10
F
Breaker - Starter
B-6
5
Solenoid - 5 SP 3
A-10
F
Bus Bar 1
C-5
5
Solenoid - 6 SP 4
A-10
F
Cold Start
A-7
5
Solenoid - 7 SP 5
A-10
F
Control - ECM
K-1
G
Solenoid - A/C Compressor GP
D-6
E
Control - Engine
B-9
E
Solenoid - Aux. Div
G-1
14
Control - Machine
E-3
6
Solenoid - Circle
I -4
3
Control - PHS Joystick Control - PHS Valve SSV2
F-5 E-2
B 9
Solenoid - Crab
I-4
3
Solenoid - Diff. Lock
D-11
F
Control - PHS Valve SSV4
C-17
10
Solenoid - Forward 1
A-10
F
Control - Shifter
J-8
C
Solenoid - Forward 2
A-11
F
Control - Shuttle
I -8
C
Solenoid - Frame Level 1
C-2
18
Display Cluster 2A
I-5
C
Solenoid - Frame Level 2
C-2
18
CID 168 248 817 1391 1392
999
WH
Fuel Injection Pump
BU
I n take Manifold Temp Sensor
755
OR
Xmsn Shift Sol No. 4 Or 5
C993
WH
Shift Rail Sensor
756
WH
Xmsn Lockup Clutch Sol
E900
WH
XMSN Out Speed Sensor
757
PU
XMSN Neutral Disable Switch
E901
GN
XMSN Out Speed Sensor
758
GN
Boom Lower Sw
E902
PU
XMSN Intermediate Speed Sensor
759
OR
Steer Mode Sel Sw
E903
YL
XMSN Intermediate Speed Sensor
760
PK
Steer Mode Sel Sw
E904
BR
Not Used
761
GY
Steer Mode Sel Sw
E905
BU
Not Used Sensor
762
YL
Boom Retract Sw
E908
BR
763
BU
Quick Coupler Sw
E909
WH
Sensor
764
PU
Quick Coupler Sw
E960
OR
E ngine Shutdown Sw
765
OR
Quick Coupler Sw
E965
BU
Engine Speed Sensor Engine Speed Sensor
766
GN
Service Brake Press Sw
E966
YL
767
WH
Lever Platform Rotate
G963
PU
Implement Disable Solenoid
768
OR
LH Stab Press Sw
J998
BU
Action Lamp
769
BU
Man VSC Sw
K927
BU
Rear Axle Lock Solenoid
770
GN
Boom Extend?Retract
N932
PU
Platform Mode Switch Man VSC Sw
772
BR
Deadman Sw
P909
PK
773
GY
Deadman Parity Sw
P916
OR
Shift Rail Sensor
774
YL
I m plement Disable
T901
YL
Mach Security Exciter Coil In Mach Security Exciter Coil Out
775
BR
Left Stab Raise
T902
PK
776
YL
Left Stab Hold
T930
RD
Prod Link +8V
778
BR
RH Stab Sw
T931
RD
Prod Link Digital Input #1
779
WH
RH Stab Sw
T932
RD
Prod Link Digital Input #2
780
PU
PHS Joystick Grip Control
T933
RD
Prod Link Multipurpose Input #1 Prod Link Multipurpose Input #2
781
PK
PHS Joystick Y Axis
T934
RD
782
GY
PHS Joystick X Axis
T935
RD
Prod Link Digital Input #3
783
OR
Frame Level Disable Relay
T936
RD
Prod Link Digital Input #4
784
YL
Left Stab Lower
T941
BR
Switch (Note D)
785
PK
Right Stab Lower
T942
PK
Switch (Note D)
786
GN
Boom Lowered
T943
GY
Switch (Note D)
787
WH
Right Hand Stab Press Sw
T944
GN
Switch (Note D)
788
YL
Boom Angle Sw
T963
RD
Prod Link Logger Signal
789
PK
PHS Joystick Grip Control
T964
BK
Prod Link Rs-232 Txd
790
BU
Boom Retract Sw
T965
BK
Pl Rs-232 Rxd
791
PK
Lever Boom Raise/Lower
T966
BK
Pl Rs-232 Gnd
8 V Sensor Supply Limit switch (parking brake) Sender (fuel level) Temperature Sensor (Engine Coolant) Temperature Sensor (Transmission Oil) PHS CAN data link
262
5V Sensor Supply Action Alarm Rocker switch (autoshift) Relay (starter) Trigger switch (auxiliary) of joystick control Rocker switch (implement lockout) Engine ECM Switch (transmission neutralizer) Transmission control (shift lever) Position sensor (shift lever) Switch (steering mode) Display module (instrument cluster) ECM Internal Backup Battery Temperature sensor (torque converter oil) Solenoid Valve Implement Lockout Position sensor (forward/backward lever) of the joystick control Position sensor (left and right) of the joystick control Switch (continuous flow)
Ferrite Coil
C-1
8
Solenoid - Implement Disable
C-17
43
Flasher
K-13
D
Solenoid - QC
G-1
15
Horn Lamp - LH Head Turn Position
C-2 J-4
3 34
Solenoid - Rear Axle Lock 1
B-16
16
Solenoid - Reverse 1
A-11
F
1127
Lamp - LH Stop Tail Turn Rev
E-18
11
Solenoid - Reverse 2
A-11
F
Lamp - Action Lamp - RH Head Turn Position
H-1 B-1
G 33
Solenoid - Sync Mod
A-11
F
Suppressor - Frame Level 1
C-2
18
1128 1187
Lamp - RH Stop Tail Turn Rev
A-18
12
Suppressor - Frame Level 2
C-2
18
1189
Lamp - RH Stop Turn Tail Fog
B-18
12
Switch - A/C High Pressure
D-6
B
E-18
12
Switch - A/C Low Pressure
E-6
Machine Security System Machine Security System LED
D-1 G-6
8 C
Switch - A/C On
F-6
B
Switch - Air Restriction Ind.
D-7
E
Motor - Blower GP
H-11
A
Switch - Beacon
I-8
C
Motor - Front Washer
J-13
D
Switch - Blower
E-5
B
I-4
3
Switch - Boom Flood
F-9
B
Motor - Front Wiper
E
Motor - Fuel Lift Pump
A-7
E
Switch - Cab Flood
F-8
B
Motor - Rear Washer
J-13
D
Switch - Cab Plat Select
F-10
B
Motor - Rear Wiper
I-17
A
Switch - Cont. Flow
H-7
C
Motor - Roof Washer
K-13
D
Switch - Deadman
I-3
G
Motor - Roof Wiper
I-17
A
Switch - Diff. Lock
K-7
39
Motor - Seat Pump
G-11
A
Switch - Dimmer
I-7
C
Motor - Starter
B-6
5
Switch - Disconnect
A-6
E
Product Link Pump - Fuse Fuel
G-5 C-6
32 5
Switch - Eng. Stop
I-3
G
Switch - Engine Start
I-1
G
Pump - Fuel Injection
E-8
E
Switch - Fog Lamp
H--8
C
Radio
F-6
C
Switch - Frame Leveling
H-6
C
Relay - Blower High
H-11
37
Switch - Front Washer
F-7
B
Relay - Blower Medium High
H-10
37
Switch - Front Wiper
F-7
B
Relay - Cold Start
A-7
5
Switch - Hazard
I-7
C
Relay - Fuel Pump
B-6
5
Switch - Head/ Side Lamp
I-7
C
Relay - Main Power
G-13
38
Switch - Horn
I-5
C
Relay - Start
B-5
5
Switch - Implement Disable
F-10
B
Resistor - 120 Ohm
C-7
2
Switch - Key
G-6
C
Resistor - Term STD
E-2
9
Switch - LH Stab Press.
D-1
33
H-5
C
D-17
43
Switch - LH STB Switch - MAN VCS
H-7 J-7
C C
Resistor - Terminating Resistor - Terminating 1A Resistor - Terminating 2B
D-2
6
Switch - Oil Filter Bypass
D-7
E
Sender - Fuel
E-15
21
Switch - Park Brake
L-13
A
Sensor - A/C Module
D-6
E
Switch - Plat Mode
I-2
G
Sensor - Boom Extend/Retract Sensor - Boom Limiting
J-3 L-3
19 44
Switch - Quick Coupler
J-7
C
Switch - Rear Wiper
F-8
B
D-18
22
Switch - RH Stab Press.
D-2
34 C
Sensor - Boom Lowered
1251 1401 1402 1403 1404 1405 1406 1407 1410 1482 1529 1603 1658 1718 1740 1741 1763 1788 1789 1820 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1845 1846 1847 1930 1935 1960 2101 2197
Sensor - Boom Raise/Lower
J-3
C
Switch - RH STB
H-7
Sensor - Boom Retracted
L-3
19
Switch - Roof Wiper
F-7
B
Sensor - Coolant Temp.
D-8
E
Sensor - Engine Speed 2
E-10
E
Switch - Service Brake Press. Switch - Start Aid
L-9 J-8
27 C
Sensor - Engine Speed 3
C-8
E
Switch - Std. Shift Neutralizer
G-11
C
Sensor - Front Axle Center
E-2
23
Switch - Steer Mode Select
J-6
C
Sensor - Intake Manifold Pressure
D-8
E
Sensor - Intake Manifold Temp.
D-8
E
Switch - Stop Lamp Switch - Tow - Hitch
K-8 F-9
39 B
Sensor - Lever Platform Rotate Sensor - Load Limit Module
J-3 K-3
G G
Switch - Turn Signal
G-8
C
D-17 K-2
24 G
Thermostat
J-6
C
CID
H-10
37
0271
Action Alarm
0324
Action Lamp
Machine locations are repeated for components located close together.
0337
Switch (emergency stop)
A = Located inside of cab.
1125
Postion sensor (handle control) (platform rotate)
B = Located inside of right console.
1127
Postion senosr (handle control) (platform rotate)
C = Located inside of steering console.
1763
Switch (Operator Station Select)
Sensor - LSI Strain Sensor - Master
Switch - XMSN Neutral Disable
D = Located around relay panel. 36
E = Located under engine cowl.
Component
1772
Switch (Operator Station Select)
1879
Position sensor (handle control) (boom extend/retract)
F = Located on the transmission.
Machine ECM (MID No. 117)
G =Located on the access platform.
CID
A
0168
1
Receptacle
Plug
Component Part Number
2 Wire, Cable, or Harness Assembly Identification
Pin or Socket Number
* C-C4* AG-C3 130-6795 130-6795
Position sensor (auxiliary hydraulics) (right thumb of the joystick control lever) Alternator R Terminal Modulating valve (reverse) Modulating valve (forward) Modulating valve (No. 3) Modulating valve (No. 4) Modulating valve (No. 5) Modulating valve (No. 6) Modulating valve (No. 7) Modulating valve (Transmission Synchronization) 10 Volt PHS Power Switch (quick coupler) Data Link Position Sensor (left thumb lever) of the joystick control Mode Select Switch (Implement Fine Modulation) Solenoid (crab steer) Solenoid (circle steer) Switch (operator station) Switch (right stabilizer) Switch (left stabilizer) Relay (auxiliary diverter valve) Position sensor (shift rail) (No. 1) Position sensor (shift rail) (No. 2) Position sensor (shift rail) (No. 3) Strain sensor (longitudinal stability) Longitudinal stability system Proximity switch (critical angle) Proximity switch (boom lower) Proximity switch (boom retract) Solenoid valve (rear axle lock) Pressure switch (right stabilizer) Pressure switch (left stabilizer) Key start switch PHS Module 1 PHS Module 2 PHS Module 3 Relay (quick coupler) Select switch (aux hydraulic flow) ECM cannot communicate with the key reader PHS address line Limit switch (Boom extend)
Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.
Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
L-C12 * 3E-5179
AG-C4 * 111-7898
1 2
1 2
Part Numbers For Connector Assembly
Component
Machine ECM (MID No. 082)
325-A135 PK-14 Pin
L-C12* 3E-5179
AG-C4* 111-7898
9X-1123
1
Harness identification code This example indicates wire 32 in harness "L'.
2
200-L32 BK-14
Socket
Single Wire Connector * Harness identification letter(s) and a serializing code. The "C" stands for connector and the number indicates which connector in the harness.
Circuit Number Identification
Wire Color
Wire Gauge
TH580B Telehandler Electrical System SLH1-899
Electrical Schematic Symbols And Definitions FUSE - A component in an electrical circuit that will open the circuit if too much current flows through it. 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 gauge. The sender measures the temperature or 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. CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too much current flows through it. This does not destroy the circuit breaker and it can be reset to become part of the circuit again. SOLENOID - A solenoid 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 a valve or move a piece of metal that can do work.
© 2005 Caterpillar, All Rights Reserved
Electrical Schematic Symbols And Definitions
Off Machine Switch Specification Part No.
Function
114-5333
A/C Hi Pressure
149-6371
A/C Lo Pressure
203-7984
Oil Filter Bypass
251-7137
LH Stab Pressure RH Stab Pressure
Actuate
Printed in U.S.A.
Deactuate
275 to 1750 kPa¹ _ _ _ _ (40 to 255 psi.) 103.4 ± 13.8 kPa 34.5 ± 7 kPa (15 ± 2 psi.) 5 ± 1 psi. 276 ± 28 kPa 179 kPa (40 ± 4 psi.) (26 psi.) 6598.2 ± 206.8 kPa 3371.5 ± 689 kPa (957 ± 30 psi.) (489 ± 100 psi.)
Contact Position
Normally Open² Normally Open Normally Open
T
Pressure Symbol
Temperature Symbol
Level Symbol
Flow Symbol
A to B N/O A to C N/C
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).
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
² Contact position at the contacts of the harness connector.
Normally open switch that is closed due to an applied condition, and will open again with a specific decrease in that condition.
Component System Voltage
G
B
C
19
31
38
22
30
14
Normally closed switch that will open with an increase of a specific condition.
6 15
5
3 18 33
27
34
8 9
D
E
37 39
2
11 12 10
16
21
13
24
23
F
32
4
28 1
29
Normally closed switch that is open due to an applied condition, and will close again with a specific decrease in that condition.
25
20
26
Failure Mode Identifiers (FMI)¹ FMI No.
4 2
13 5
33
12
E
16
18 F
6 31
22 30
Not Used
C967
CID 41 70 96 110 177 246
271 368 444 489 490 590 629 668 702 750 811 817 826 882
Lamp - RH Stop Turn Tail Fog Co
Component System Voltage Cat Data Link Internal Backup Battery MSS Output Driver No. 1 MSS Output Driver No. 2
Machine ECM (MID No. 039)
Xmsn Shift Sol
611
PU
Schematic Location
Machine Location
Xmsn Shift Sol
612
676
Schematic Location
Component
9 14
15
23
20
25 26
10
28
1 29
19 8
B 38
3
C 27
37 32
24 A
11
36
34 39 D
21
Machine Harness Connector And Component Locations
Failure Description
0
Data valid but above normal operational range.
1
Data valid but below normal operational range.
2
Data erratic, intermittent, or incorrect.
3
Voltage above normal or shorted high.
The circle indicates that the component has screw terminals and a wire can be disconnected from it. Resistor, Sender and Solenoid Specifications
4
Voltage below normal or shorted low.
Part No.
5
Current below normal or open circuit.
6
Current above normal or grounded circuit.
121-4036 134-2540
Solenoid: Resistors:
7
Mechanical system not responding properly.
8
Abnormal frequency, pulse width, or period.
153-4795
Sender:
9
Abnormal update.
10
Abnormal rate of change.
11
Failure mode not identifiable.
177-7807 178-9570 195-9700 200-6210 201- 0315 212-3350 212-3350
Solenoid: Solenoid: Solenoid: Solenoids: Solenoid: Solenoid: Solenoid:
12
Bad device or component.
13
Out of calibration.
14
Parameter failures.
15
Parameter failures.
16
Parameter not available.
17
Module not responding.
18
Sensor supply fault.
19
Condition not met.
20
Parameter failures.
¹The FMI is a diagnostic code that indicates what type of failure has occurred.
Component Description
Implement Disable Terminating Fuel Level Shuttle XMSN A/C Compressor Differential Lock @ D-11 Differential Lock @ D-10/ Syncro XMSN Rear Axle Lock Aux. Div. QC
¹ At room temperature unless otherwise noted.
Resistance (Ohms)¹
10.5 120 Full - 33 to 29 Half - 80 to 75 Empty - 259.5 to 241.5 2.2 ± 0.2 17.6 ± 0.6 10 ± 0.5 10 ± 0.5 10.16 ± 0.3 3.2 ± 0.224 3.2 ± 0.224
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine.
(Dimensions: 48 inches x 35 inches)
Description
RENR7761-01 July 2005
36 Page,
Wire Color
Wire Number
Harness And Wire Electrical Schematic Symbols
RENR7761-01
Wire Number
Component Identifiers (CID¹) Module Identifier (MID²) Machine Security (MID No. 124)
Component Location
325-L25 PK-14
Wire Description