Alarm - Action Alarm - Backup
D-15
1
Sender - Fuel Level
D-1
12
Alternator
D-13
2
Sender - Hydraulic Oil Temperature
A-3
13
Component Identifiers (CID) List CID No.
Component
Component
Caterpillar Monitoring System (MID No. 30) 096 110 177 248 263 271 324 600 601 819 821 830
Fuel Level Sensor Engine Coolant Temperature Sensor Torque Converter Oil Temperature Sensor CAT Data Link 8 Volt Sensor Power Supply Action Alarm Action Lamp Hydraulic Oil Temperature Sensor Brake Air Pressure Display Data Link 9 Volt Display Power Supply Brake Oil Temperature
6 3 24
Electronic Transmission Control (MID No. 81) 168 190 248 362 368 617 621 631 632 633 634 635 636 668 671 680 685 687 688
28
19
1
Electrical System Voltage Engine RPM Sensor CAT Data Link Ride Control Solenoid Auto/Manual Switch Air Inlet Heater Relay Downshift Switch Solenoid 1 (reverse) Solenoid 2 (forward) Solenoid 3 (speed 4) Solenoid 4 (speed 3) Solenoid 5 (speed 2) Solenoid 6 (speed 1) Shift Handle Transmission Speed Sensor Ride Control Switch Service Identification Code Options Identification Code Dual Horsepower Solenoid
29
2
9
20
16
30
17 15
D 27
18
8
10
5
23
A
22
32
4
7 13
2
27
15 19
Failure Mode Identifiers (FMI) List
1
Failure Description
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.
4
Voltage below normal or shorted low.
5
Current below normal or open circuit.
6
Current above normal or grounded circuit.
7
Mechanical system not responding properly.
8
Abnormal frequency, pulse width, or period.
9
Abnormal update.
10
Abnormal rate of change.
11
Failure mode not identifiable.
12
Bad device or component.
13
Out of calibration.
24 3
17 20
16 25 30
14 9
C
32 23 18
5
B 21
6
26 28
31 22
12
10
11
7 13
29
Resistor - Starter Diagnostic
Machine Location 9
Wire Number
SENR1319 March 1996
Wire Number
Description
Wire Color
Power Circuits
Description Accessory Circuits
101
RD
BAT(+)
500
BR
WIPER - FRONT (PARK)
102
BU
HD LMP
501
GN
WIPER - FRONT (LO)
105
BR
KEY SW
502
OR
WIPER - FRONT (HI)
107
WH
ENG SHUT
503
BR
WIPER - REAR (PARK)
108
BU
AUX CKT
504
YL
WIPER - REAR (LO)
OR
ALT OUTPUT (+) TERM.
505
BU
WIPER - REAR (HI)
3
Sender - Trans Oil Temperature
B-14
14
112
PU
MAIN POWER RLY OUTPUT
506
PU
WASHER - FRONT
Battery
F-l4
4
Sensor - Engine Coolant Temp
B-15
15
113
OR
OPR MON PANEL B+ SWITCHED
507
WH
WASHER - REAR
Breaker - Alternator (80A)
C-15
D
Sensor - Engine Speed
C-12
16
114
GN
WARNING HORN (FORWARD)
508
PU
RADIO SPEAKER - LEFT
116
BR
AUX CKT
509
WH
RADIO SPEAKER - LEFT (COMMON)
Breaker - Blower Motors (15A)
C-10
B
Sensor - Trans Speed
C-12
18
118
GY
AUX CKT
511
BR
RADIO SPEAKER - RIGHT
Breaker - Engine Shutdown
C-15
D
Shifter - Transmission
E-3
A
120
YL
AUX CKT
512
GN
RADIO SPEAKER - RIGHT (COMMON)
121
YL
BCKP ALARM TO LAMP
513
OR
A/C COMPRESSOR/REFRIGERANT PRESS. SW
Breaker - Main (80A)
C-15
D
Solenoid - A/C Clutch
F-13
19
124
GN
A/C
515
GY
BLOWER MOTOR (HI)
126
PK
XMSN CTRL
516
GN
BLOWER MOTOR (MEDIUM)
Breaker - Running Lamp (15A)
C-15
D
Solenoid - Engine Shutdown
E-13
20
127
OR
AUX CKT
517
BU
BLOWER MOTOR (LO)
Breaker - Seat Air Comp (15A)
C-10
B
Solenoid - Float Detent
B-6
21
128
PK
AUX CKT
521
YL
A/C SW TO REFRIGERANT SW
129
BU
AUX CKT
522
WH
A/C CLUTCH TO THERMOSTAT SW
Control - Autoshift Trans
E-12
5
Solenoid - Raise Detent
B-6
21
130
GN
AUX CKT
537
GN
TURN SIGNAL SW TO FLASHER
Control - Dimmer
E-4
C
Solenoid - Start Aid
A-14
23
135
BU
AUX CKT
538
BR
HAZARD INDICATOR
138
GN
AUTO LUBE PUMP TO PAYLOAD MON
A513.
PK
DC/DC CONVERTER MEMORY OUTPUT
Control - Engine Shutdown
C-13
27
Solenoids - Transmission Valve (6)
C-12
22
144
GN
AUX CKT
A538
OR
REAR WINDOW DEFROSTER
164
WH
HYDRO CTRL WTL POWERTRAIN CTRL
F-7, F-8
A
Suppressor - Arc
F-13
19
177
OR
MAIN BRKR
603
PK
ROTARY BEACON
Fuses (10A)
C-10
B
Switch - A/C Thermostat
C-3
A
604
OR
STOP LAMP
200
BK
MAIN CHASSIS.
605
YL
TURN LAMP - LEFT
Fuses (10A)
C-15
D
Switch - Battery Disconnect
F-14
19
201
BK
OPR MON PANEL
606
GY
TURN LAMP - RIGHT
202
BK
XMSN CTRL
608
GN
FLOOD LAMP - REAR
Gauges - Quad Package
E-4
C
Switch - Beacon
D-10
B
203
BK
CHASSIS DIAGNOSTIC
610
OR
HEAD LAMP BASIC
Gauges - Tachometer/Speedometer
E-4
C
Switch - Blower Motor
D-5
C
207
BK
STARTER DIAGNOSTIC
611
PU
HEAD LAMP HI
228
BK
FUEL LEVEL SENDER
614
PU
PARK/TAIL/DASH LAMP
Ground - Cab
C-5
28
Switch - Brake Oil Pressure
A-13
23
251
BK
PAYLOAD MON - SYSTEM GND
615
YL
CAB FLOOD LAMP/ROPS
Ground - Frame
D-13
29
Switch - Coolant (Start Aid)
A-15
15
270
BK
DENT CODE 0
617
BR
TAIL/POSITION LAMP - LEFT (ROAD PKG)/WIDTH
271
BK
IDENT CODE 1
619
GN
HEAD LAMP LO
Horn - Forward (High Tone)
D-2
6
Switch - Engine Oil Pressure
A-15
17
272
BK
IDENT CODE 2
661
GN
TACHOMETER LAMP
273
BK
IDENT CODE 3
662
YL
SPEEDOMETER LAMP
Horn - Forward (Low Tone)
A-1
7
Switch - Flood Lamp
E-11
B
274
BK
IDENT CODE 4
663
GY
GAGE LAMPS
Lamp - Action
D-4
C
Switch - Front Intermittent Wiper
F-8
B
275
BK
DENT CODE 5
290
BK
SERVICE
710
GN
XMSN SPEED PICKUP SIGNAL
Monitor - Caterpillar Monitoring System
E-5
C
Switch - Horn
C-4
A
Motor - Blower
C-3
10
Switch - Hydraulic Oil Level
A-3
13
C-3
11
Switch - Key Start
E-9
B
C-13
8
Switch - Monitoring System Operator
E-8
B
Motor - Front Wiper
B-3
C
Switch - Park Brake Pressure
A-13
8
Motor - Rear Washer
C-14
8
Switch - Rear Wiper
E-8
B
Motor - Rear Wiper
F-10
5
Switch - Refrigerant
F-13
19
Motor - Starter
F-14
9
Switch - Start Aid
E-8
B
Relay - Main
C-15
D
Switch - Stop Lamp
C-1
26
Relay - Start
C-15
D
Switch - Trans Neutralizer
C-1
26
Resistor
C-14
D
Switch - Trans Upshift/Downshift
B-6
B
Resistor - Blower Motor Speed
C-3
10
Lighting Circuits
Ground Circuits
814F Wheel Tractor, 815F Soil Compactor & 816F Landfill Compactor Electrical System 814F 9DM1-UP
815F 1GN1-UP
816F 5FN1-UP
Machine locations are repeated for components located close together.
4
Wire Description
Wire Color
F-14
Motor - Front Washer
8
Component
Schematic Location F-13
Battery
Motor - Blower
A
Machine Location C
109
Converter - Voltage
11
B
31 21
D
0
26
25
14
CID list applies to Transmission and Monitor Controls.
FMI No.
12
C
Component Location
Schematic Location E-5
A = Components located in operator’s compartment. B = Components located in right console. C = Components located in dash area. D = Components located in relay panel.
MACHINE HARNESS CONNECTOR AND COMPNENT LOCATIONS
Control Circuits
291
BK
CLEAR
720
PU
XMSN BRAKE SW
A221
BK
XMSN CTRL OPTIONS CODE 0
751
GN
XMSN SHIFT SOL NO. 1 OR 3
A222
BK
XMSN CTRL OPTIONS CODE 1
752
YL
XMSN SHIFT SOL NO. 2
A232
BK
XMSN CTRL OPTIONS CODE 2
754
BU
XMSN SHIFT SOL NO. 3 OR 1
Basic Machine Circuits
755
OR
XMSN SHIFT SOL NO. 4 OR 5
301
BU
STARTER NO. 1 SOL
761
GY
LIFT KICKOUT SOL SW
302
OR
STARTER NO. 1 RESISTOR TO DIAGNOSTIC
762
YL
BUCKET POSITIONER SOL SW
304
WH
STARTER RLY NO. 1 OUTPUT
795
YL
DUAL HP SOL
306
GN
STARTER RLY COIL TO NEUT START SW
D735
PK
XMSN CONT PARK BRK LEVER SW TO GND
307
OR
KEY START SW TO NEUT START SW
D743
GN
RIDE CONT - WTL IMPL CONT SW TO GND N/O
308
YL
MAIN POWER RLY COIL
D744
WH
RIDE CONT - WTL IMPL CONT SW TO GND N/C
310
PU
START AID SW TO START AID SOL
E701
PK
AUTO RIDE CNTL SW
311
WH
START AID SQL TO TEMP SW
E702
OR
AUTO RIDE CNTL SW
321
BR
BCKP ALARM LAMP TRAVEL ALARM
E707
GN
DISPLAY +V
322
GY
WARNING HORN (FORWARD)
E708
PK
DISPLAY CLOCK
326
PU
KEY SW “C” TERM.
E735
PU
TACK/SERV MTR/ODOMETER SELECT
327
PK
SHUTDOWN SOL.
900
PU
XMSN SHIFT SOL NO. 5 OR 4
334
BU
START AID SOL #2
901
WH
XMSN SHIFT SOL NO. 6
338
PK
FLOOD LAMP RLY COILS
910
YL
XMSN NEUTIZER OVERRIDE INDICATOR
373
GN
START AID SWITCH TO TIMER
921
WH
XMSN SOL NO 1 OR 3 RETURN
Monitoring Circuits
922
BR
XMSN SOL NO 2 RETURN
403
GN
ALTERNATOR (R) TERM.
923
GY
XMSN SOL NO 3 OR 1 RETURN
405
GY
OPR MON OIL PRESS. (LO SETTING)
924
GN
XMSN SOL NO 4 OR 5 RETURN
409
OR
OPR MON NEUT
925
YL
XMSN SOL NO 5 OR 4 RETURN
410
WH
OPR MON FAULT ALARM
926
BU
XMSN SOL NO 6 RETURN
411
PK
OPR MON MASTER FAULT LAMP
944
OR
DATA LINK + (CAT)
416
OR
SUPPL STER SW
945
BR
DATA LINK - (CAT)
417
GY
PRIMARY STER SW
963
GN
BUCKET/FORK POSITION DETENT COIL
419
YL
OPR MON PARKING BRAKE
964
BU
FORK POSITION SELECT
429
YL
OPR MON BRAKE OIL TEMP
965
WH
TRANS SOL 1 SW TO GND
432
PK
OPR MON BRAKE PRESS. (OIL)
966
GY
TRANS SOL 3 SW TO GND
439
YL
LAMP INDICATOR
968
BR
TRANS SOL 2 SW TO GND
441
OR
ENG COOLANT TEMP GAGE
969
YL
TRANS SOL 3 SW TO B+
442
GY
HYD SYSTEM TEMP GAGE
970
GN
TRANS SOL 4 SW TO GND
443
YL
POWER TRAIN TEMP GAGE
971
YL
TRANS SOL 5 SW TO GND
447
PK
FUEL LEVEL GAGE
972
BU
TRANS SOL 6 SW TO GND
450
YL
TACH SENDER (+)
973
BR
CST AUTOSHIFT- AUTO/MANUAL SW 2
496
WH
OPR MON PANEL HYD OIL LEVEL
974
PU
CST AUTOSHIFT- SLOW MODE SW
A401
YL
ELECTRICAL SYSTEM NO.1 VOLTAGE
975
WH
CST AUTOSHIFT- SOL RETURN
B412
YL
PMS LIFT POS SENSOR
976
OR
RIDE CONT SOL
B413
PU
PMS LIFT CYL PRESS. SENSOR
977
YL
CST AUTOSHIFT- AUTO/MANUAL SW 1
C413
YL
DISPLAY DATA
978
GN
CST AUTOSHIFT- SLOW MODE SW 1
C414
BU
DISPLAY LOAD
987
WH
DIVERTER SOL
B999
GN
TRANS SOL 1 SW TO B+
D963
EU
SENSOR MODULE #
D953
BU
IMPL PILOT VALVE
D954
GN
DUAL LOW IDLE SOL
+8V SUPPLY
Printed in U.S.A.
© 1996 Caterpillar All Rights Reserved
Electrical Schematic Symbols And Definitions
Harness And Wire Electrical Schematic Symbols
Related Electrical Service Manuals Title
Module Identifiers (MID)
MID No.
Module
30 81
Connector Location1
Caterpillar Monitoring System Electronic Transmission Control
Monitoring System Mode
Mode Of Operation
Schematic Location
Machine Location
CONN 1
A-3
31
CONN 2
A-3
13
CONN 3
C-2
11
CONN 4
C-2
26
CONN 5
C-2
11
CONN 6
C-3
C
CONN 7
B-5
21
CONN 8
F-6
C
CONN 9 Service Tool Connector
F-6
C
CONN 10
E-6
C
CONN 11
B-7
21
CONN 12
D-7
B
CONN 13
D-7
B
Connector Number
Mode Number
Form Number
Alternator (107-7977)
SEN R4757
Caterpillar Monitoring System
SENR6717
Electronic Transmission Control
SENR5922
Starting And Charging Systems
SENR2947
Starting Motor: (6V-5227) Consist No. 6V-5537 Consist No. 106-8552 Consist No. 6V-5538
A
T
Pressure Symbol
SENR3581 SENR3536 SENR4975
Level Symbol
Flow Symbol
Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
Receptacle
Plug 2
Typical representation of a Sure-Seal connector. The plugand receptacle contain both pins and sockets.
Wire, Cable, or Harness Assembly Identification
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
0
Harness Code
1
Numeric Readout
2
CONN 14
D-7
B
Service
3
CONN 15
E-8
B
Tattletale
4
CONN 16
F-10
32
Units (U.S/Metric)
5
CONN 17
E-10
B
Setup
6
CONN 18
D-10
B
CONN 19
C-10
B
CONN 20
B-10
31
CONN 21
B-11
21
CONN 22
C-12
22
CONN 23
A-13
21
CONN 24
B-13
23
CONN 25
E-13
30
CONN 26
D-15
24
¹ A hysteresis band exists: 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).
CONN 27
E-14
24
² Contact position at the contacts of the harness connector.
CONN 28
A-15
25
CONN 29
B-15
14
CONN 30
B-15
D
CONN 31
D-2
26
CONN 32
D-10
B
CONN 33
B-2
31
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.
Temperature Symbol
1 2
1 2
Pin or Socket Number
Normal
1
AA 1
Part No. 8N-1693
Function
Off Machine Switch Specification
Engine Coolant Temp (St Aid)
Actuate
Deactuate
Contact Position
37.8 ± 2.8°C (100.0 ± 5.0°F)
26.7°C MIN (80.0°F MIN)
Normally Closed
6890.0 ± 345.0 kPa (1000.0 ± 50.0 psi)
Normally Closed
9W-2653
Park Brake Pressure
8270.0 kPa MAX (1200.0 psi MAX)
9X-0378
Engine Oil Pressure
62.0 kPa MAX (9.0 psi MAX)
38.0 ± 20.0 kPa (5.5 ± 3.0 psi)
Normally Open
9X-9643
Brake Oil Pressure
10700.0 kPa MAX (1552.0 psi MAX)
8960.0 ± 345.0 kPa (1300.0 ± 50.0 psi)
1-2, Normally Open 1-3 Normally Closed
114-5334
Refrigerant Pressure (A/C)
275 to 1750 kPa¹ (40 to 255 psi)
— —
Normally Open ²
Component Part Number
Single Wire Connector
Normally open switch that is closed due to an applied condition, and will open again with a specific decrease in that condition.
C
A
A 325-PK-14
Pin
Normally closed switch that will open with an increase of a specific condition.
AA 1
Wire Color
Socket
2
Normally closed switch that is open due to an applied condition, and will close again with a specific decrease in that condition.
9X-1123 325-PK-14
200-BK-14
Circuit Number Identification
The circle indicates that the component has screw terminals and a wire can be disconnected from it.
Wire Gauge
Electrical Schematic Symbols And Definitions FUSE - A component in an electrical circuit that will open the circuit if too much current flows through it.
Part No.
Resistor and Solenoid Specifications Component Description
No circle indicates that the wire cannot be disconnected from the component.
6T-2217
Resistor
9G-1950
Resistor - Blower Speed
102-0347
Solenoid - A/C Clutch
14.4 ± 0.6
110-6465
Solenoid - Engine Shutdown
5.12 ± 0.26
9G-4365
Solenoid - Start Aid
6.0
3E-3748
Solenoids - Transmission
8.5
¹ At room temperature unless otherwise noted.
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.
Resistance (Ohms)¹ 150.0 ± 7.5 Overall 2.00 ± .10 Tap 1.00 ± .05
This indicates that the component has a wire connected to it that is connected to ground. T
This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine.
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. MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is activated by electricity and held latch 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.