©
2001 Caterpillar
All Rights Reserved
Printed in U.S.A.
RENR2457-02
December 2001
3500B Locomotive Engine
Electrical System
7AF1-UP
8DF1-UP
9WF1-UP
PWG1-UP
BCK1-UP
5PS1-UP
3ZW1-UP
6HZ1-UP
Engine View - Rear
22
21
23
24
Engine View - Front
16
17
18
19
20
Engine View - Right Side
12
13
14
15
Engine View - Left Side
1 2
3
4
J2
J1
1
2 3
4
5
6
7
13
19
23
29
12
18
22
28
34
35
36
37 38
39
40
1
2 3
4
5
6
7
13
19
23
29
12
18
22
28
34
35
36
37 38
39
40
Wire Side P2 Connector ECM Side
Wire Side ECM SideP1 Connector
Key C
Key D
Plug Wedge
A
B
C
2-Pin
3-Pin
Plug (P)
Plug (P)Jack (J)
Jack Wedge
Deutsch Connectors
P1 & P2 Connectors
(40-Pin Deutsch AEC)
Electronic Control Module J1,J2
Connectors (40-Pin Deutsch AEC)
Engine Sensor and Connector Location Views
Component or Connector
Location
Aftercooler Temperature 11
Air Shutoff Solenoid 13
Atmospheric Pressure 10
Atmospheric Pressure 17
Coolant Temperature 8
Crankcase Pressure 15
ECM Connector J1/P1 18
ECM Connector J2/P2 19
Electronic Control Module 20
Electronic Unit Injector Connector 1
Filtered Fuel Pressure 6
Filtered Oil Pressure 9
Left Exhaust Temperature Sensor 2
Left Turbocharger Compressor Inlet Pressure 21
Primary Speed Timing 23
Primary Speed/Timing Sensor 3
Right Exhaust Temp 12
Right Turbocharger Compressor Inlet Pressure 22
Secondary Speed Timing 24
Secondary Speed/Timing Sensor Connector 4
Timing Calibration Sensor 14
Turbocharger Compressor Outlet Pressure 16
Unfiltered Fuel Pressure 5
Unfiltered Oil Pressure 7
Functional Description
Jack/Plug
Electronic Control Module (ECM) Connector (key C) J1/P1
Electronic Control Module (ECM) Connector (key D) J2/P2
Junction Box Connector A (25-Pin) J3A/P3A
Junction Box Connector B (37-Pin) J3B/P3B
#1 Electronic Unit Injector Connector Through #16 Electronic Unit J4/P4 through
Injector Connector (2-Pin)
J19/P19
Primary Engine Speed/Timing Sensor Connector (3-Pin) J20/P20
Coolant Temperature Sensor Connector (3-Pin) J21/P21
Filtered Engine Oil Pressure Sensor Connector (3-Pin) J22/P22
Turbocharger Compressor Outlet Pressure Sensor Connector (3-Pin) J23/P23
Right Turbocharger Compressor Inlet Pressure Sensor Connector (3-Pin) J25/P25
Timing Calibration Connector (2-Pin) J26/P26
Atmospheric Pressure Sensor Connector (3-Pin) J27/P27
Left Turbocharger Compressor Inlet Pressure Sensor Connector (3-Pin) J28/P28
Crankcase Pressure Sensor Connector (3-Pin) J29/P29
Left Exhaust Temperature Sensor Connector (3-Pin) J30/P30
Right Exhaust Temperature Sensor Connector (3-Pin) J31/P31
Aftercooler Temperature Sensor Connector (3-Pin) J32/P32
Engine Speed Sensor (RPM) Connector (2-Pin) J39/P39
Engine Service Tool Connector (9-Pin) J42/P42
Secondary Engine Speed/Timing Sensor Connector (3-Pin) J44/P44
Unfiltered Engine Oil Pressure Sensor Connector (3-Pin) J48/P48
Filtered Fuel Pressure Sensor Connector (3-Pin) J49/P49
Unfiltered Fuel Pressure Sensor Connector (3-Pin) J50/P50
Engine View - Left Side Inset
5
6
7
8
9
10
11
A AA
2
A AA
1
2
325-PK-14
C
A
325-PK-14
200-BK-14
T
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.
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.
Harness And Wire Electrical Schematic Symbols
Socket
Pin
Pin or Socket
Number
Wire, Cable, or Harness
Assembly Identification
Single Wire
Connector
Circuit Number
Identification
Wire
Gauge
Wire
Color
Plug
Receptacle
9X-1123
Component
Part Number
Electrical Schematic Symbols And Definitions
1
1
1
2
2
Typical representation of a
Sure-Seal connector. The
plugand receptacle contain
both pins and sockets.
Typical representation of a
Deutsch connector. The
plug contains all sockets
and the receptacle contains
all pins.
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
Normally open switch that is closed due to an applied condition, and will open again with a
specific decrease in that condition.
Normally closed switch that will open with an increase of a specific condition.
Normally closed switch that is open due to an applied condition, and will close again
with a specific decrease in that condition.
The circle indicates that the component has screw terminals and a wire can be disconnected
from it.
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.
Electrical Schematic Symbols And Definitions
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
ISOLATED POWER PLUS
02
03
01
04
05
06
07
08
09
10
11
12
13
14
15
16
17
20
18
19
OIL TEMP RETURN
INLET TEMP RETURN
INLET AIR TEMP SIGNAL
INSTR PANEL
DIAGRAM 155-2555
CONNECTOR J
3T-0204
ISOLATED POWER MINUS
EXTERNAL
JUMPER
OIL TEMP SENSOR SIGNAL
A
B
C
SPARE
SPARE
D
BK-18
WH-18
TWISTED PAIR
TIMING
CALI-
BRATION
9X-5392
TWISTED PAIR
G971-BR
229-BK
A
B
C
TERMINAL
BOARD 2
1
2
4
3
3
2
L18
L17
EMERGENCY SHUTDOWN C
A
B
J
H
J782-GN
F720-PU
F710-GN
D
XXXX-XX
B472-YL
200-BK
200-BK
D839-YL
F720-PU
F710-GN
XXXX-XX
XXXX-XX
A268-BK
F705-PK
F718-BU
G721-GY
26
29
27
28
30
XXXX-XX
XXXX-XX
XXXX-XX
XXXX-XX
XXXX-XX
XXXX-XX
XXXX-XX
F701-BR
XXXX-XX
XXXX-XX
XXXX-XX
G971-BR
J782-GN
F701-BR
XXXX-XX
XXXX-XX
XXXX-XX
XXXX-XX
02
03
01
05
06
04
07
09
11
13
08
10
12
14
15
16
18
22
24
17
21
23
25
21
18
17
16
13
11
09
14
08
05
01
03
02
ENGINE
CONNECTION 'A'
25-PIN
3T-3044
4-6 GA. 19&20
8-10 GA. 1,22&24
12-14 GA. 7,9,11&13
16-18 GA. ALL OTHERS
06
25
24
23
22
20
19
15
07
12
10
04
19
20
20
19
04
06
15
23
10
19
20
22
12
24
25
07
02
03
01
05
08
14
09
11
13
16
17
18
21
25
23
21
17
24
22
18
16
15
14
12
10
08
13
11
09
07
04
06
05
01
03
02
TERMINAL BOARD T2
GLOBAL CAT
LINK (-)
GLOBAL CAT
LINK (+)
ISOLATED
POWER (-)
TB2-1 TB2-2 TB2-3
TB1-4TB1-3TB1-2TB1-1
LOCAL CAT
LINK (+)
LOCAL CAT
LINK (-)
ISOLATED POWER PLUS
SHIELD
TORQUE LIMIT
ENGINE SHUTDOWN 2
ENGINE SHUTDOWN 1
TB1-1
LOAD FEEDBACK (0-200mA)
THROTTLE
GENERAL ALARM (COIL)
START ENABLE (COIL)
ISOLATED POWER MINUS
ISOLATED POWER PLUS
SHUTDOWN NOTIFY (COIL)
LOCAL CAT LINK (+)
TERMINAL BOARD T1
LOCAL CAT LINK (-)
GLOBAL CAT LINK (+)
GLOBAL CAT LINK (-)
NOTE C
NOTE B
ECM
BREAKER
15A
2
1
18 GA
18 GA
18 GA
25
9
18 GA
18 GA
J1-5
J1-5
18 GA
18 GA
18 GA
18 GA
18 GA
27
18 GA
16 GA
16 GA
14
CAT DATA +
CAT DATA -
19
20
-B
+B
PROGRAMMABLE RELAY
CONTROL MODULE
OPTIONAL
TWISTED PAIR
LOCAL/RMTE
J1-9
J1-8
J1-1
J1-2
J1-6
J1-6
J1-2
J1-1
J1-9
UMBILICAL
ENGINE
CONNECTION 'D'
37-PIN
3T-3410
ALL PINS 16-18 GA.
J1-8
24V
TB1-3
+
-
27
28
998-BR
29
30
31
32
33
34
35
36
37
26
24
4
6
7
3
37
29
2
19
17
16
15
6
2
3
5
SPDS-SH
SPDS-SH
TORQUE LIMIT
MAG PICKUP -
START - RUN/STOP
CUSTOMER CAN WIRE AS MANY NORMAL SHUTDOWN
PUSHBUTTONS IN SERIES AS NEEDED AROUND THE LOCOMOTIVE
(CLOSE TO RUN)
DIGITAL REFERENCE
ESD C
ESD D
CUSTOMER CAN WIRE AS MANY EMERGENCY SHUTDOWN
PUSHBUTTONS IN SERIES AS NEEDED AROUND THE LOCOMOTIVE
(CLOSE TO RUN)
TO SHUTDOWN
LOGIC OF
LOCOMOTIVE
SYSTEM
SHUTDOWN NOTIFY (COM)
OUTPUT
SIGNAL TO
LOCOMOTIVE
SYSTEM
CUSTOMER
MUST SELECT
THIS RESISTOR
VALUE TO
OBTAIN CORRECT
CURRENT
ATTENUATION
LOAD FEEDBACK
CUSTOMER'S
0-200 mA
ISOLATED
INPUT MODULE
CRANK ENABLE
TO STARTER MOTOR
CRANKING CONTROLS
LOCAL
NORMALLY OPEN
CRANK ENABLE
SHUTDOWN NOTIFY (NC)
SHUTDOWN NOTIFY (NO)
OUT
- BAT
+ BAT
CUSTOMER WIRING
140-2175
RMTE SP
-
4-20 mA
TORQUE LIMIT SIGNAL
FROM LOCOMOTIVE
SYSTEM
RMTE SP
+
4-20 mA
THROTTLE SIGNAL
FROM LOCOMOTIVE
SYSTEM
- BAT+ BAT
140-2175
RMTE SP
+
RMTE SP
-
OUT
-
+
-
+
BATTERY
A
B
(B)
37
36
35
START ENABLE
RELAY
34
33
32
31
30
28
27
29
26
MAG PICKUP +
C
TWISTED PAIR
REMOTE MOUNTED JUNCTION BOX
AND UMBILICAL HARNESS WIRING
26
C
TB1-3
TB1-1
18 GA
18 GA
18 GA
37
TB1-1
PRELUBE PRESSURE SWITCH (NOT USED)
LOCAL CAT LINK (+)
LOCAL CAT LINK (-)
18 GA
PRELUBE PUMP DRIVE (NOT USED)
GLOBAL CAT LINK (+)
36
TWISTED PAIR
GLOBAL CAT LINK (-)
START - RUN/STOP
PUSH BUTTON
(CLOSE TO RUN)
18 GA
20
19
SPARE
SPARE
04
06
15
23
10
19
20
22
12
24
25
POWER MINUS
07
SPARE
10 GA
SPARE
ISOLATED POWER PLUS
10 GA
SPARE
SPARE
NOTIFY RELAY
NOTE F
35
PRELUBE PUMP DRIVE RETURN (NOT USED)
SPARE
02
03
01
05
08
14
09
11
13
16
17
18
21
25
23
21
17
24
22
18
16
15
14
12
10
08
13
11
09
07
04
06
05
SPARE
18 GA
34
SPARE
SPARE
SPARE
SPARE
DIGITAL REFERENCE
(A)
E STOP
109-6507 SWITCH.
111-1324 BLOCK.
124-3176 COVER
138-6307 SWITCH.
111-1324 BLOCK.
124-3176 COVER
PUSH BUTTON
(CLOSE TO RUN)
01
03
02
ECS AUTO (NOT USED)
LOCAL CAT
LINK (-)
LOCAL CAT
LINK (+)
ISOLATED
POWER (+)
ISOLATED
POWER (-)
GLOBAL CAT
LINK (+)
GLOBAL CAT
LINK (-)
J981-WH
J982-OR
150-OR
229-BK
892-BR
893-GN
4
150-OR
229-BK
XXXX-XX
33
SPARE
32
31
OIL TEMP SENSOR SIG
30
28
INLET AIR TEMP SENSOR SIG
OIL TEMP RETURN
27
7
3
29
INLET AIR TEMP RETURN
SPARE
SPARE
EMERGENCY OVERIDE
SPARE
SPARE
SPARE
30
31
32
(G)
SPARE
1
37
4
6
24
SPARE
SPARE
SPARE
TB1-1
TB1-4
-
+
MAG PICKUP
TORQUE LIMIT
START - RUN/STOP
(FUEL AND AIR INLET)
EMERGENCY SHUTDOWN C
EMERGENCY SHUTDOWN D
LOAD FEEDBACK (0-200mA)
THROTTLE
EXTERNAL
JUMPER
ISOLATED
POWER (-)
GENERAL ALARM (COM)
GENERAL ALARM (NC)
ISOLATED
POWER (-)
GENERAL ALARM (NO)
START ENABLE (COM)
START ENABLE (NO)
LOCAL CAT LINK (+)
LOCAL CAT LINK (-)
GLOBAL CAT LINK (+)
GLOBAL CAT LINK (-)
SHUTDOWN NOTIFY (COM)
B
A
SHUTDOWN NOTIFY (NC)
NOTE E: TERMINAL BOARD HAS AN
INTEGRAL ELECTRICAL CONNECTION
NOTE I: 74 VDC MAX RELAY CONTACT VOLATGE
NOTE J: CONNECT PINS 3 AND 7 TO 37 TO RUN.
OPEN FOR E - STOP
NOTE K: CONNECT PINS 4 AND 6 TO 37 TO START / RUN
OPEN TO STOP
25
9
INTERNAL
CONNECTION
14
GENERAL ALARM
RELAY (GAM)
+ 24 V
18 GA
27
NOTE C: INRUSH CURRENT 90A 15ms
ENGINE
CONNECTION 'C'
25-PIN
3T-3043
4-6 GA. 19&20
8-10 GA. 1,22&24
12-14 GA. 7,9,11&13
16-18 GA. ALL OTHERS
ENGINE
CONNECTION 'B'
37-PIN
3T-3412
ALL PINS 16-18 GA.
SPD2-CL
SPD2-CL
NOTE E
17
SPD1-BK
(RELAYS SHOULD BE ISOLATED)
31
32
TWISTED SHEILDED
PAIR
8N-1514
UMBILICAL
UMBILICAL
16
(B)
8N-1533
ENGINE
CONNECTION 'B'
3T-3412
37-PIN
16-18 GA.
ENGINE HARNESS WIRING
NOTE D: CAT SUPPLIED OPTION
TO BE WIRED BY THE CUSTOMER
NOTE B: CUSTOMER SUPPLIED
NOTE A: CATERPILLAR SUPPLIED OPTIONS
(C)
3T-3410
3T-3043
SPARE
15
20
19
1
NOTE D
SPARE
NOTE D
04
10
12
07
19
20
21
23
24
25
+V ANALOG
SIGNAL
ANALOG RET
DIGITAL RET
SIGNAL
+V SPD/TIM
+V ANALOG
SIGNAL
ANALOG RET
ANALOG RET
SIGNAL
+V ANALOG
+V ANALOG
SIGNAL
ANALOG RET
TURBO
OUTLET
PRESSURE
SENSOR
LEFT
TURBO
INLET
PRESSURE
SENSOR
RIGHT
TURBO
INLET
PRESSURE
SENSOR
ENGINE
OIL
PRESSURE
SENSOR
UNFILTD
ENGINE
COOLANT
TEMP
SENSOR
102-7532
ENGINE
SPEED/
TIMING
SENSOR
102-9029
ANALOG RET
SIGNAL
+V ANALOG
+V ANALOG
SIGNAL
ANALOG RET
ATMOS
PRESSURE
SENSOR
L9
L2
L6
FUEL
FILTER
PRESSURE
SENSOR
FILTD
ANALOG RET
SIGNAL
+V ANALOG
G746-WH
TORQUE LIMIT
L8
L7
L7
ANALOG RET
SIGNAL
+V ANALOG
L3
+V DIGITAL
SIGNAL
DIGITAL RET
TURBO
EXHAUST
TEMP RH
3E-7826
TURBO
EXHAUST
TEMP LH
3E-7826
DIGITAL RET
SIGNAL
+V DIGTAL
+V ANALOG
SIGNAL
ANALOG RET
AFTER
COOLER
TEMP
SENSOR
128-4347
L4
ISOLATED
POWER (+)
25
FUEL
FILTER
PRESSURE
SENSOR
UNFILTD
CRANK
CASE
PRESSURE
SENSOR
DIGITAL RET
SIGNAL
+V ANALOG
+V ANALOG
SIGNAL
ANALOG RET
ENGINE
OIL
PRESSURE
SENSOR
FILTD
EMERGENCY OVERRIDE
N917-RD
N917-RD
B472YL
200BK
200BK
06
L12
SPDS-SH
TB1-4
A249-BK
L11
A249-BK
G746-WH
L8
L2
L3
C-KEY
PLUG AS.
101-0204
HSDL SHIELD GROUND
L6
F718-BU
A249-BK
L13
L4
15
L16
G746-WH
L13
L12
L9
G746-WH
L9
L12
L13
A249-BK
G746-WH
L8
INTERNAL
CONNECTION
39
G746-WH
L12
L13
XXXX-XX
L11
L9
L16
ENGINE
CONNECTION 'A'
25-PIN
3T-3044
4-6 GA. 19&20
8-10 GA. 1,22&24
12-14 GA. 7,9,11&13
16-18 GA. ALL OTHERS
SPD2-CL
AIR SHUT-OFF
SOLENOID
152-2700
SPD1-BK
C
L7
L3
B
L16
L2
L4
L9
A
ECS IN AUTO
L12
L13
L16
TB1-1
+V SPD/TIM
SIGNAL
DIGITAL RET
SECONDARY
ENGINE
SPEED/
TIMING
SENSOR
102-9029
TERMINAL
BOARD 1
N917-RD
TWISTED PAIR
TWISTED PAIR
E
(H)
ENGINE SERVICE
CONNECTION 'H'
8T-8736
14-18 GA.
N917-RD
D839YL
200BK
B472YL
D839YL
N917-RD
200BK
8
2
29
19
L11
L11
OIL
TEMP
SENSOR
129-9191
AIR
INLET
TEMP
SENSOR
129-9191
1 SIGNAL
2 RETURN
EMERGENCY OVERRIDE
DIGITAL REFERENCE
F731-OR
F730-GY
F729-GN
F728-BR
F727-GN
F726-YL
A712-BR
A711-PU
A710-GY
A709-OR
A708-BR
A707-PU
A706-GY
A705-YL
A704-GN
A703-BR
A702-PU
A701-GY
SOL 14&16 RETURN
SOL 13&15 RETURN
SOL 10&12 RETURN
SOL 9&11 RETURN
SOL 6&8 RETURN
SOL 5&7 RETURN
SOL 2&4 RETURN
SOL 1&3 RETURN
SOLENOID 16 POWER
SOLENOID 15 POWER
SOLENOID 14 POWER
SOLENOID 13 POWER
SOLENOID 12 POWER
SOLENOID 11 POWER
SOLENOID 10 POWER
SOLENOID 9 POWER
SOLENOID 8 POWER
SOLENOID 7 POWER
SOLENOID 6 POWER
SOLENOID 5 POWER
SOLENOID 4 POWER
SOLENOID 3 POWER
SOLENOID 2 POWER
SOLENOID 1 POWER
L1
YL
YL
G770-WH
G769-PU
A716-PU
A715-GY
A714-PK
32
D-KEY
PLUG AS.
101-0205
16
40
26
34
28
38
22
37
18
31
12
30
06
10
05
11
17
21
33
L11
39
04
27
36
2
1
2
1
1
2
2
1
1
2
ISOLATED
POWER (+)
2
1
1
2
L17
RS232 PORT
B-
B+
CAT LINK -
CAT LINK +
XXXX-XX
XXXX-XX
229-BK
33
CUSTOMER
COMMUNICATION
MODULE
OPTIONAL
ISOLATED
POWER (+)
NOTE A
XXXX-XX
XXXX-XX
8N-1532
2
1
L18
1
2
EMERGENCY SHUTDOWN D
TB2-4
SHUTDOWN NOTIFY (NO)
34
35
36
37
WH-18
BK-18
OR-18
02
03
01
05
08
14
09
11
13
16
17
18
22
OR-18
25
23
21
17
24
22
18
16
15
14
12
10
08
13
11
09
07
04
06
05
A
B
C
F732-PK
A
B
C
A746-PK
F713-OR
F714-PK
997-OR
993-BR
997-OR
993-BR
997-OR
993-BR
993-BR
997-OR
997-OR
993-BR
995-BU
996-GN
998-BR
999-WH
996-GN
999-WH
A
B
C
A
B
C
A
B
C
A
B
OR-18
YL-18
GN-18
WH-18
BK-18
OR-18
OR-18
BK-18
WH-18
OR-18
YL-18
GN-18
C
GN-18
2
1
YL
YL
A713-GN
A716-PU
G770-WH
CYLINDER
HEAD
SOL 16
CYLINDER
HEAD
SOL 14
G770-WH
A714-PK
YL
YL
YL
YL
G769-PU
A715-GY
CYLINDER
HEAD
SOL 15
YL-18
OR-18
CYLINDER
HEAD
SOL 13
A713-GN
G769-PU
YL
YL
YL
YL
YL
YL
YL
A713-GN
G769-PU
A715-GY
YL
A716-PU
G770-WH
A702-PU
F727-GN
A747-GY
OR-18
YL-18
GN-18
C
B
A
993-BR
997-OR
A747-GY
F725-WH
GN-18
YL-18
OR-18
C
B
A
993-BR
997-OR
F725-WH
G971-BR
F701-BR
XXXX-XX
A746-PK
A747-GY
F713-OR
994-GY
F714-PK
F705-PK
F702-GN
A704-GN
PRIMARY THROTTLE
AFTERCOOLER TEMPERATURE SNSR
A751-YL
OIL PRESSURE SNSR - FILTERED
TURBO INLET LH PRESSURE SNSR
ATMOSPHERIC PRESSURE SNSR
TURBO OUTLET PRESSURE SNSR
START RELAY RETURN
13
03
02
08
14
20
23
07
19
TURBO INLET RH PRESSURE SNSR
AIR SHUTOFF
START ENABLE RELAY
A700-OR
998-BR
F723-PK
F724-PU
A751-YL
993-BR
997-OR
F704-OR
A700-OR
998-BR
BK-18
WH-18
START - RUN/STOP
998-BR
A700-OR
F703-GY
F737-YL
E795-YL
A746-PK
F713-OR
F714-PK
995-BU
997-OR
993-BR
F737-YL
997-OR
993-BR
A
B
C
OR-18
YL-18
GN-18
A751-YL
150-OR
F724-PU
F723-PK
995-BU
COOLANT TEMPERATURE SNSR
A706-GY
09
24
01
29
35
F729-GN
A708-BR
A710-GY
F731-OR
15
A712-BR
A711-PU
F730-GY
A709-OR
A707-PU
F728-BR
A705-YL
YL
YL
YL
YL
A701-GY
F726-YL
F726-YL
A703-BR
C
B
A
993-BR
997-OR
E795-YL
997-OR
993-BR
A
B
C
OR-18
YL-18
GN-18
A705-YL
F728-BR
A268-BK
F737-YL
FUEL PRESSURE SNSR - UNFILTERED
F728-BR
DIGITAL REFERENCE
A707-PU
A709-OR
F730-GY
F730-GY
A711-PUA712-BR
F731-OR
F731-OR
A710-GY
CYLINDER
HEAD
SOL 11
CYLINDER
HEAD
SOL 9
CYLINDER
HEAD
SOL 7
GENERAL ALARM (NC)
CYLINDER
HEAD
SOL 5
CYLINDER
HEAD
SOL 3
L1
CYLINDER
HEAD
SOL 1
CYLINDER
HEAD
SOL 12
CYLINDER
HEAD
SOL 10
CYLINDER
HEAD
SOL 8
CYLINDER
HEAD
SOL 6
CYLINDER
HEAD
SOL 4
YL
YL
YL
YL
YL
YL
CYLINDER
HEAD
SOL 2
YL
YL
A714-PK
A703-BR
YL
YL
INJECTOR GP (16)
A708-BR
F729-GN
F729-GN
A706-GY
F726-YL
A704-GN
1
2
2
1
F727-GN
A701-GY
F727-GN
A702-PU
1
2
2
1
1
1
2
2
YL
YL
F712-GY
G971-BR
F711-GN
G971-BR
G971-BR
G971-BR
L1
F732-PK
1 SIGNAL
13
2 RETURN
26
28
30
87A
87
85
86
30
85
87A
87
86
26
28
DIGITAL REFERENCE
996-GN
F711-GN
F712-GY
F712-GY
F711-GN
G721-GY
SPARE
TURBO INLET EXH LH TEMP SENSR
E795-YL
996-GN
999-WH
892-BR
F700-BU
F719-BR
F718-BU
F723-PK
F724-PU
229-BK-14
229-BK-14
113-OR
CRANKCASE PRESSURE SENSOR
+V SPEED/TIMING
PRIMARY SPEED TIMING
GLOBAL CAT DATA LINK (-)
LOCAL CAT DATA LINK (+)
LOCAL CAT DATA LINK (-)
GENERAL ALARM
OVERSPEED VERIFY
CAN DATA LINK + (NOT USED)
SECONDARY SPEED TIMING
ECM ON/OFF - KEYSWITCH INPUT
993-BR
997-OR
998-BR
F725-WH
F711-GN
F704-OR
E796-GN
F715-PU
J981-WH
A700-OR
E798-PK
J982-OR
893-GN
J782-GN
F717-YL
F716-WH
F706-PU
150-OR-14
150-OR-14
FUEL PRESSURE SNSR - FILTERED
CAN DATA LINK (+)
TURBO INLET EXH RH TEMP SENSR
OIL PRESSURE SNSR - UNFILTERED
ENGINE SHUTDOWN SIGNAL 'C' SW2
PRELUBE PRESSURE SWITCH
GLOBAL CAT DATA LINK (+)
DIG SNSR PWR (8V)
SHUTDOWN NOTIFY RELAY
TIMING CAL-FAN SPD(+)
TIMING CAL-FAN SPD(-)
LOAD FEED BACK
START/RUN/STOP2 SW4
UMBILICAL
BATTERY(-)
BATTERY(-)
BATTERY(+)
BATTERY(+)
ANA SNSR RETURN
34
START/RUN/STOP1 SW3
01
17
16
26
37
31
32
38
07
09
03
27
25
20
24
14
08
02
40
30
36
29
35
21
13
28
22
33
18
12
11
05
19
23
06
04
ANA SNSR PWR (5V)
DIG SNSR RETURN
ENGINE SHUTDOWN SIGNAL 'D' SW6
CAN DATA LINK - (NOT USED)
PRELUBE PUMP RETURN
E798-PK
EMERGENCY OVERIDE
G721-GY
E798-PK
G721-GY
8N-1513
ENGINE
SPEED
SENSOR
9X-5392
WH-18
F704-OR
F711-GN
F712-GY
F703-GY
A
PRELUBE PUMP DRIVE
B
C
C
B
A
OR-18
YL-18
GN-18
WH-18
BK-18
F712-GY
GN-18
YL-18
OR-18
CAN DATA LINK (-)
TWISTED SHEILDED
PAIR
MAG PICKUP
+
-
18
NOTE A
NOTE A
NOTE B
NOTE B
NOTE A
RM27
RM28
RM2
RM1
NOTE B
(G)
SPD PWM 1B- (UNUSED)
OR-18
E796-GN
E796-GN
F716-WH
F717-YL
F706-PU
BK-18
F732-PK
113-OR
113-OR
892-BR
893-GN
229-BK-14
F701-BR
SPD1A-BK
SPD2A-CL
F715-PU
SPDSA-SH
150-OR-14
150-OR-14
F700-BU
F702-GN
229-BK-14
J981-WH
J982-OR
10
F711-GN
F712-GY
E798-PK
J782-GN
F719-BR
01
SPD1-BK
30
31
32
994-GY
03
02
TWISTED PAIR
L1
F703-GY
998-BR
E798-PK
TWISTED PAIR
A B H J E D
OR-18
BK-18
WH-18
G721-GY
994-GY
(E)
9W-1951
C
B
A
(F)
O/SPEED VERIFY
(NORMALLY OPEN
MOMENTARY CLOSED)
UMBILICAL UMBILICAL
1
CRANK ENABLE (NO)
GENERAL ALARM (NO)
GENERAL ALARM (COM)
THIS WIRING DIAGRAM IS FOR THE 3500B
LOCOMOTIVE (151-9207-04).
163-8492
163-8492 163-8492
163-8522
163-8523
163-8523
163-8492
163-8523
163-8523
2
1
4
3
9X-8124
SHUTDOWN
3E-5239
3E-5239
NOTE I
NOTE K
200-BK
200-BK
410-WH
200-BK
150-OR
160-PU
F835-BU
200-BK
028-GY
F835-BU
8
7
410-WH
ALARM SILENCE
9W-0073
ALARM
123-9694
029-YL
200-BK
3
2
1
026-OR
029-YL
028-GY
893-GN
200-BK
892-BR
150-OR
D
C
150-OR
2
INSTRUMENTATION
CONNECTION (J)
150-OR
200-BK
F835-BU
200-BK
200-BK
112-2974
112-2975
118-8582
200-BK
150-OR
028-GY
200-BK
D
C
5
2
029-YL
200-BK
6
029-YL
4
3
SCROLL SWITCH
3E-8768
MODE/CLEAR
SWITCH
MOMENTARY
200-BK
028-GY
028-GY
1
3T-3972
200-BK
200-BK
D839-YL
B472-YL
893-GN
200-BK
892-BR
150-OR
200-BK
200-BK
D839-YL
B472-YL
RH/LH
3E-8858
028-GY
026-OR
B472-YL
200-BK
029-YL
200-BK
D839-YL
410-WH
CLEAR SWITCH
3500B HARNESS CODE 0
ALARM SILENCE SWITCH SWITCH 2
INLET TEMP SENSOR 7/SW 17
3500B HARNESS CODE 3
3500B HARNESS CODE 4
OIL TEMP SENSOR 6/SW 16
3500B HARNESS CODE 6
3500B HARNESS CODE 1
8
7
8
7
200-BK
3
F835-BU
2
029-YL
B
A
3
026-OR
150-OR
150-OR
B
A
1
DAMAGE FROM VIBRATION
3E-8775
150-OR
ENGINE RUNNING POSITION
3500B HARNESS CODE 2
LH/RH SWITCH 1
ALARM
SCROLL
MODULE DATA
+V MODULE
MODULE CLOCK
MODULE LOAD
200-BK
671-PU
672-OR
A304-RD
A303-BR
F835-BU
200-BK
671-PU
160-PU
672-OR
160-PU
A304-RD
A303-BR
A304-RD
672-OR
671-PU
200-BK
200-BK
A303-BR
A
B
200-BK
2
160-PU
150-OR
POTENTIOMETER
(POT)
3
2
1
3
LAMP
118-5075
668-PK
SOCKET
113-5183
160-PU
PLUG
3E-3384
8-PIN
671-PU
672-OR
A303-BR
200-BK
A304-RD
CONNECTOR (GC3)
200-BK
SOCKET
113-5183
668-PK
LAMP
118-5075
1
2
3
4
5
6
155-2555
DIAGRAM-WIRING
(LOCO INSTR. PANEL)
40
39
38
37
36
33
32
31
30
29
28
27
26
24
22
21
19
18
17
16
12
11
10
9
8
6
672-OR
13
7
DATA -
DATA +
4
23
F835-BU
- BATTERY
20
35
A303-BR
A304-RD
34
25
15
14
5
2
1
EMS
158-6255 CONNECTOR (EMS)
150-OR
POTENTIOMETER
122-9457
200-BK
892-BR
+ BATTERY
893-GN
671-PU
PLUG
8T-9834
40-PIN
LAMP
118-5075
669-YL
SOCKET
113-5183
160-PU
PLUG
3E-3384
8-PIN
671-PU
672-OR
A303-BR
200-BK
A304-RD
CONNECTOR (GC1)
200-BK
SOCKET
113-5183
669-YL
LAMP
118-5075
1
2
3
4
5
6
6
5
4
3
2
1
LAMP
118-5075
670-GY
SOCKET
113-5183
200-BK
CONNECTOR (GC2)
A304-RD
200-BK
A303-BR
672-OR
671-PU
PLUG
3E-3384
8-PIN
160-PU
SOCKET
113-5183
670-GY
LAMP
118-5075
1
200-BK
200-BK
20
19
18
17
16
15
14
13
12
11
10
GAUGE CLUSTER 3
GAUGE CLUSTER 2
GAUGE CLUSTER 1
NOTE F
NOTE F: SWITCH SHOWN IN NORMAL
NOTE G
NOTE G: SECURE CONNECTOR TO PREVENT
NOTE H: ONLY ONE EMS PER ENGINE
NOTE F
NOTE F
NOTE F
01
02
03
04
05
06
07
08
09
ISOLATING
POWER
SUPPLY
BAT+
ISOLATED
ISOLATED
POWER +
POWER -
LOCAL/
RMTE
102-8627
144-1624
POWER PLUS
POWER MINUS
THROTTLE (PWM)
NOTE REF:
SPECIAL INSTRUCTION
REHS0470
P1
(A)
J3B
15
J1
P1
J2
P2
J26
P26
P44
J44
P30
J30
P31
J31
P20
J20
P25
J25
P28
J28
J23
P23
P50
J50
P49
J49
J27
P27
J22
P22
P29
J29
P32
J32
J21
P21
P4
J4
J5
P5
P6
J6
RECEPT AS. (16)
9X-0352
J7
P7
J8
P8
J9
P9
J10
P10
J11
P11
J12
P12
J13
P13
J14
P14
J15
P15
J16
P16
J17
P17
J18
P18
J19
P19
P39
J39
J3A
P3A
J3B
P3B
NOTE: REF SPCL INST
REHS0470
EITHER AID RELAY
EITHER AID SWITCH
START AID SWITCH (NOT USED)
START AID RELAY (NOT USED)
TWISTED
PAIR
DATA LINK MINUS
INPUT SIGNAL WIRES
VOLTAGE SUPPLY WIRES
DATA LINK PLUS
OUTPUT SIGNAL WIRES
COMMON WIRES
ALL DASHED LINES ARE ATTACHMENTS.
NOTE H
13
8
LOCOMOTIVE
GENERAL ALARM (COM)
SYSTEM
18
2 6 3 5
(F)
TWISTED PAIR
TWISTED PAIR
TWISTED PAIR
0-200 mA
0-200 mA
OR VOLTAGE
SCALING
F
E
D
11
10
9 8 7
6
8
7
6
5
4
3
5
4
3
C
B
A
14
13
12
11
10
9
H
G
I
12
13
14
2
1
H
G
I
F
E
D
2
1
C
B
A
