SENR8192
January 1990
D25D, D30D, D350D
Electrical System
1HK1-UP
3AJ1-UP
9RF1-UP
Articulated Dump Trucks
©
1990 Caterpillar
All Rights Reserved
Printed in U.S.A.
A
3
4
5
6
8
9
10
11
12
14
15
13
16
1
2
17
18
19
20
21
22
23
24
25
26
9
4
10
20
8
13
7
7
25
14
23
22
16
26
24
5
6
43
43
44
45
41
42
43
42
44
41
43
45
44
45
43
45
44
44
43
44
45
44
46
47
44
41
43
44
45
28
27
29
32
31
30
36
36
40
37
39
38
35
38
37
34
33
IDENT SCHEMATIC COMPONENTS LOCATION IDENT SCHEMATIC COMPON ENTS LOCATION
45 ALARM - BACK UP (D30D) A-11 9 LAMP - TURN/PARK LH (FRONT) C-1
45 ALARM - BACK UP (D25D/D350D) A-12 10 METER-SPEEDO E-4
5 ALARM-FAULT C-5 10 METER - SERVICE HOUR E-5
30 ALTERNATOR 10 METER-TACHO E-5
21 AUXILIARY START RECEPTACLE A-5
A-2
A MOTOR - BLOWER B-4
16 BATTERIES A-5 A MOTOR - FRONT WASHER D-11
20 BREAKER - AIR CONDITIONER D-4 A MOTOR - FRONT WIPER B-6
20 BREAKER-ALTERNATOR E-9 A MOTOR - REAR WASHER D-10
20 BREAKER - ENGINE SHUTDOWN E-4 A MOTOR - REAR WIPER C-1
20 BREAKER-HEADLAMP 32 MOTOR-STARTER . A-6
20 BREAKER - KEY D-9 10 PANEL - OPERATOR MONITOR F-1
20 BREAKER-TURN/PARK D-4
D-4
38 PICK-UP - SPEEDOMETER E - 11
10 CONTROL - ENGINE SHUTDOWN E-1 31 PICK-UP - TACHOMETER A-3
3 CONTROL - FRONT SUSPENSION F-12 20 RELAY-START D-9
42 CONTROL - REAR SUSPENSION (D30D) B -10 10 RELAY - MAIN POWER D-4
10 CONNECTOR-DIAGNOSTIC F-9 A RESISTOR - AIR CONDITIONER B-5
25 DRYER - AIR E-11 40 RESISTOR A-6
10 FLASHER D-3 21 SENDER-CONVERTER TEMPERATURE C-11
20 FUSE - AIR DRYER E-5 39 SOlENOID - AIR CONDITIONER CLUTCH B-3
20 FUSE - BACK UP ALARM D-1 26 SOLENOID - FRONT SUSPENSION F -12
20 FUSE - DOME LIGHT E-1 28 SOLENOID - ENGINE SHUTDOWN A-2
20 FUSE - FRONT WIPER E-5 26 SOLENOID - REAR SUSPENSION F -12
20 FUSE-HORN D-1 A SOLENOID - START AID B-2
20 FUSE-GAUGES E-1 1 SWITCH - BACK-UP ALARM C-3
20 FUSE -INDICATOR LAMP E-5 10 SWITCH - BLOWER B-5
20 FUSE - OPERATOR MONITOR E-1 11 SWITCH - BRAKE AIR PRESSURE B-2
20 FUSE-REARWlPER E-5 11 SWITCH - BRAKE AIR PRESSURE C-2
20 FUSE - START AID D-1 10 SWITCH - CAB LAMP F-1
20 FUSE - RETARDER SOLENOID E-5 10 SWITCH - CONVERTER LOCK INDICATOR D-10
20 FUSE - SUSPENSION CONTROL E-1 31 SWITCH-CONVERTER TEMPERATURE E -11
10 GAUGE-CONVERTER TEMPERATURE F-3 34 SWITCH - COOLANT TEMPERATURE A-4
10 GROUND - DASH PANEL D-2 33 SWITCH - COOLANT TEMPERATURE
8 HORN - WARNING B-1 (ETHER INHIBIT) A-4
10 INDICATOR - DIFFERENTIAL LOCK F-4 36 SWITCH - DIFF LOCK D-11
10 INDICATOR - HIGH BEAM F-5 1 SWITCH - DIMMER C-2
10 INDICATOR - LEFT TURN F-6 6 SWITCH - DISCONNECT A-4
10 INDICATOR - RETARDER F-5 13 SWITCH-DOME LAMP B-1
10 INDICATOR - RIGHT TURN F-4 35 SWITCH - ENGINE OIL PRESSURE A-3
10 INDICATOR - SERVICE BRAKE F-5 22 SWITCH - FRONT BRAKE OVERSTROKE E -10
10 INDICATOR - TORQUE CONVERTER LOCK F-6 10 SWITCH-FRONTWIPER E-8
10 LAMP - BRAKE AIR PRESSURE GAUGE E-6 29 SWITCH-FUEL A-3
10 LAMP - BRAKE AIR PRESSURE GAUGE F-6 2 SWITCH.FUEL LEVEL A-2
12 LAMP-CAB B-8 10 SWITCH - HORN F-8
4 LAMP - DOME B-1 10 SWITCH - KEY START E-3
9 LAMP - HIGH BEAM HEAD RH B-1 14 SWITCH - LOCK UP INDICATOR D -10
9 LAMP - HIGH BEAM HEAD LH C-1 10 SWITCH - OPERATOR MONITOR TEST F-3
9 LAMP - LOW BEAM HEAD RH A-1 23 SWITCH - PARK BRAKE INDICATOR F - 10
9 LAMP - LOW BEAM HEAD LH C-1 19 SWITCH - PARK BRAKE INHIBIT C-2
10 LAMP - MASTER FAULT F-2 41 SWITCH - BRAKE OVERSTROKE (D350D) B -12
43 LAMP - BACK UP (D30D) A-11 41 SWITCH - BRAKE OVERSTROKE (D30D) B-11
43 LAMP - BACK UP (D25D/D350D) A-12 10 SWITCH-REAR WIPER F-1
44 LAMP - STOP/TAIL/TURN RH (D30D REAR) A-11 10 SWITCH - REFRIGERANT B-2
44 LAMP - STOP/TAIL/TURN LH (D30D REAR) B-11 15 SWITCH - RETARDER INDICATOR E.11
44 LAMP - STOP/TAIL/TURN RH 10 SWITCH - RUNNING LAMP F-8
(D30D/D300D REAR) A-12 11 SWITCH - TURN SIGNAL E-2
44 LAMP - STOP/TAIL/TURN LH 10 SWITCH - START AID F-3
(D30D/D350D REAR) B-12 18 SWITCH - STOP LAMP C-2
9 LAMP - TURN/PARK RH (FRONT) A-1 A THERMOSTAT B-5
Compontent
Locations
A
-
COMPONENTS
IN
OPERATOR
COMPARTMENT
Engine and Transmission - Left Side
C32108P1
C32109P1
D25D Trailer
D30D Trailer
D350D Trailer
CIRCUIT CIRCUIT
NUMBER COLOR POWER DISTRIBUTION CIRCUITS NUMBER COLOR MONITORING CIRCUITS
101 RD BATTERV 469 GN FUEL LEVEL SENDER
102 BU HEAD LAMP 472 OR SERVICE BRAKE INDICATOR LAMP
103 VL DOME/DASH/PARK/TAIL LAMP 477 VL SPEEDO PROBE
105 BR KEV SWITCH 488 WH AIR PRESS. SW. LINK
107 WH ENGINE SHUTDOWN CONTROL 490 GN LOCK UP INDICATOR LAMP
109 OR ALTERNATOR OUTPUT (+) TERM. 498 WH DIFF LOCK INDICATOR LAM
P
110 GN WINDSHIELD WIPER SW. (REAR)
A
CCESSORY CIRCUITS
112 PU MAIN POWER RELAV OUTPUT 500 BR WIPER - FRONT (PARK)
113 OR OPERATOR MONITOR PANEL 501 GN WIPER - FRONT (LOW)
114 GN WARNING HORN (FORWARD) 502 OR WIPER - FRONT (HIGH)
118 GV WINDSHIELD WIPER SW. (FRONT) 503 BR WIPER - REAR (PARK)
119 PK WINDSHIELD WIPER SW. (REAR) 504 YL WIPER - REAR (LOW)
121 YL BACK UP ALARM/LAMP 505 BU WIPER - REAR (HIGH)
122 BU AIR DRVER 506 PU WASHER-FRONT
123 WH GAUGES 507 WH WASHER-REAR
124 GN HEATER/AIR CONDITIONER SW. 513 OR AIR CONDITIONER COMPRESSO
R
125 OR SUSPENSION FUSE TO SUSPENSION 515 GV BLOWER MOTOR (HIGH)
130 GN INDICATOR LAMPS 516 GN BLOWER MOTOR (MEDIUM)
140 BU LOCK UP FUSE TO CONTROL 517 BU BLOWER MOTOR (LOW)
165 VL START AID FEED 521 VL AIR COND. SW. TO REFRIGERANT SW.
173 YL WORK/STOP LAMP 522 WH AIR COND. COMPR. TO THERMO. SW.
GROUND CIRCUITS 537 GN TURN SIGNAL SW TO FLASHER
200 BK MAIN CHASSIS 539 BU TURN SIGNAL INDICATOR BASIC/RIGH
T
201 BK OPERATOR MONITOR PANEL 540 WH TURN SIGNAL INDICATOR BASIC/LEFT
202 BK TRANSMISSION CONTROL 572 PU RETARDER SOL. TO GROUND SW.
203 BK CHASSIS DIAGNOSTIC 573 GN LOCK UP SW. TO RETARDER SW.
207 BK STARTER DIAGNOSTIC 589 GN PRESS. SW. TO AIR COND. CLUTCH
MACHINE BASIC CIRCUITS LIGHTING CIRCUITS
301 BU STARTER NO.1 SOL. TO RESISTOR 602 WH DOME LAMP
302 OR STARTER NO.1 TO DIAGNOSTIC! 604 OR STOP LAMP
RESISTOR TO DIAGNOSTIC 605 YL TURN LAMP-LEFT
304 WH STARTER RELA V TO NO.1 OUTPUT 606 GV TURN LAMP - RIGHT
306 GN START RELAV TO NEUTRAL START SW. 610 OR HEAD LAMP BASIC
308 YL MAIN POWER RELAV COIL 811 PU HEAD LAMP HIGH
310 PU START AID SW. TO START AID SOL. 614 PU PARK/TAIL/DASH LAMP
311 WH START AID SOL. TO TEMP SW. 619 GN HEAD LAMP-LOW
321 BR BACK UP ALARM/LAMP 624 YL WORK LAMP
322 GV WARNING HORN (FORWARD) CONTROL CIRCUITS
326 PU KEV SWITCH "C" TERMINAL 705 PK TRANSMISSION LOCK UP CLUTCH
327 PK SHUT DOWN SOL. SOL. BASIC
MONITORING CIRCUITS 706 BR TRANSMISSION RETARDER SW.
403 GN ALTERNATOR (R) TERMINAL 709 OR TRANSMISSION PICK UP POWER
405 GV OPERATOR MON PANEL OIL PRESS. 710 GN TRANSMISSION SPEED PICK UP
406 PU OPERATOR MON PANEL COOLANT SIGNAL
TEMP. 790 WH PARK BRAKE & SUSPENSION CONTROL
407 PK OPERATOR MON PANEL CONV/RET 791 OR FRONT SUSPENSION
OIL TEMP. 792 BU FRONT SUSPENSION
408 WH OPERATOR MON PANEL BRAKE PRESS. 793 YL REAR SUSPENSION
409 OR OPERATOR MON PANEL NEUTRAL 794 GN REAR SUSPENSION
410 WH OPERATOR MON PANEL FAULT ALARM 815 GN TRANSMISSION PRESSURE SENSOR
411 PK OPERATOR MON PANEL MASTER 821 YL TRANSMISSION PRESSURE SENSOR
FAULT LAMP A789 PK SERVICE BRAKE TO PARK BRAKE
413 BR OPERATOR MON. PANEL FUEL PRESS. INHIBIT SW.
415 GN OPERATOR MON PANEL TEST SW. A79O WH SUSPENSION GROUND TO PARK
419 YL OPERATOR MON PANEL PARK BRAKE BRAKE INHIBIT
443 YL POWER TRAIN TEMP GAUGE A791 OR DOWN SOL FRONT
446 PU BRAKE OIL TEMP SENDER A792 BU UP SOL. FRONT
449 BU SPEEDO SENDER A793 YL DOWN SOL REAR
450 YL TACOMETER SENDER(+) A794 GN UP SOL. REAR
451 BR TACOMETER SENDER(-) A982 BR RETARDER SOL TO THROTTLE SW.
454 GN RETARDER INDICATOR LAMP B958 GN' LOCK UP CLUTCH CONTROL TO
PRESS. SW.
Circuit Number Chart
Engine and Transmission - Right Side
Tractor (Except Engine and Transmission)
CHG
124-GN-14
614-PU
103-YL
200-BK-14
110-GN
503-BR
504-YL
505-BU
624-YL
HARNESS AS.
LOCPART NO.IDENT
200-BK-14
124-GN-14
200-BK-14
539-BU
103-YL
DF
2
1
PARK BRAKE
CONV TEMP
FUEL PR
FUEL LEVEL
ENG OILPR
COOLTEMP
ALARM
NEUTRAL
BRAKE AIR
+BATTERY
LAMP
TEST SWITCH
ALTERNATOR
GROUND
7
3
403-GN
302-OR
203-BK
207-BK
322-GY
327-PK-14
311-WH
310-PU
121-YL
539-BU
540-WH
D
F
F
610-OR-14
2
1
4
8
1
9
7
2 110-GN
103-YL
539-BU
200-BK-14
124-GN-14
9
8
H
3
118-GY
502-OR
501-GN
3
500-BR
10
5
4
6
103-YL-14
540-WH
202-BK
125-OR
122-BU
207-BK
203-BK
302-OR
311-WH
310-PU
D
2
1
4
3
7
6
5
310-PU4
3
6
9
8
1
7
2
10
419-YL
407-PK
413-BR
469-GN
405-GY
406-PU
410-WH
409-OR
408-WH
113-OR
411-PK
415-GN
403-GN
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
200-BK-14
614-PU
8
201-BK
200-BK-14
202-BK
DF
573-GN
573-GN
200-BK-14
201-BK
140-BU
403-GN
113-OR
411-PK
415-GN
4
6
AUX START
RECEPTACLE
4N6579
5
8
E
E
E
D
B
C
07
CABLE AS.
A-2/A-69F4337W
WIRE AS.
01
02
02
00
03
007U6163
007U6162
007U6235
+ BATTERY
GROUND
UP SOLENOID
DOWN SOLENOID
1
5
4
3
U
2
3
4
5
1
FRAME
GROUND
P
NSQ
12V BATTERY
9G4232
12V BATTERY
9G4232
BK-00
BK-00BK-00
NEGPOSNEGPOS
200-BK-14
513-OR-14
521-YL-14
2
469-GN
201-BK
6
F
F
F
D
200-BK
L1L1
L39
327-PK-14
200-BK
L30
112-PU
L32
L34
L33
101-RD-14
L31
RESISTOR
6T2217
L30
L19
F
H
F
H
L33
F
L30
308-YL
112-PU
L34
L30
L33
L34
L1
110-GN
F
J
J
JDJ
1
J
D
D
J
J
FUSES ARE 3K8782. FUSE HOLDERS ARE 4K5122. INDICATORLAMPS
ARE 2U4791. GAGELAMPS ARE 2U4806.
1
JK
2
3
D
L24
L10
L28
DG
G
DGG
L23
D
1
140-BU
610-OR-14
L7
540-WH
2
3
A790-WH
A789-PK
J
L23
L23
D
D
C
C
DISCONNECT SW
7N0718
B-12
B-12
B-12
C-5
B-11
F-12
F-12
F-11
D-5
B-7
D-1
C-3
B-3
B-2
B-2
B-2
00
00
01
01
01
01
01
00
7U5174
7U5342
7U5345
7T8650
7U5344
7U6395
7U6396
7U6391
7U4738
7U5076
7U4739
7U6464
7U5148
NOTE
K
L
L
R
U
X
Y
J
419-YL
J
3
2
2
4
1
2
3
1
4
Y
X
J
BU-18
RD-18
BU-18
OPERATORSTATION
201-BK
K
6
U
D30D REARCHASSISHARNESSD25D AND D350D
REAR CHASSIS HARNESS
5
1
J
K
K
L
200-BK-14
4
+BATTERY
GROUND
DOWN SOLENOID
UP SOLENOID
1
2
200-BK-14
REAR SUSPENSION
CONTROL
7U6062
WH-18
BK-18
446-PU
321-BR1
RH STOP/TAIL/TURN
LAMP
6U4358
LH STOP/TAIL/TURN
LAMP
6U4358
605-YL
604-OR
614-PU
604-OR
614-PU
200-BK
321-BR
321-BR
REVERSE
ALARM
3T1815
200-BK
1
2
200-BK
200-BK
200-BK
2
8
6
7
2
5
4
3
1
605-YL
472-OR
614-PU
604-OR
606-GY
200-BK-14
125-OR
A790-WH
A793-YL
A794-GN
201-BK
406-PU
REVERSE
LAMP
5U5915
REAR BRAKE
OVERSTROKESW
5U1452
J
472-OR
BU-18
RD-18
BK-18
BU-18
RD-18
A
A
605-YL
472-OR
200-BK-14
614-PU
604-OR
606-GY
446-PU
321-BR
A
606-GY
OPERATORSTATION
OPERATOR STATION
L19
5
1
3
4
5
2
202-BK
7
606-GY
6
8
PARK
BRAKESW
6T1546
RETARDER
SOLENOID
7U2065
(NOTE D)
200-BK
200-BK
200-BK
200-BK
7
200-BK
200-BK
A
2
L9
710-GN
202-BK
705-PK
202-BK
3
4
449-BU
477-YL
SPEEDOMETER
SPEED PICKUP
9X5393
2
709-OR
821-YL
815-GN
F
E
D
2
1 11
0
1
200-BK
C
B
A
L51
2
1 11
0
1
L51
TORQUE
CONVERTER
LOCK
INDICATOR SW
6T1546
709-OR
821-YL
815-GN
710-GN
705-PK
202-BK
506-PU
443-YL
507-WH
200-BK-14
200-BK
490-GN
L52
200-BK
498-WH
DIFF
LOCKSW
3T3133
122-BU
AIR DRYER
8V0769
L52
J
L51
J
L50
L50
J
446-PU
605-YL
606-GY
477-YL
449-BU
D
201-BK
140-BU
572-PU
200-BK-14
R
L1
J
A
1
J
L44
STARTER
6N1889
L44
L43 L43 L43
472-OR
L38
J
A790-WH
A789-PK
407-PK
FRONT
SUSPENSION
CONTROL
7U6062
BK-00
C
109-OR-6
308-YL
125-OR
A790-WH
A792-BU
A791-OR
A790-WH
A791-OR
A790-WH
A792-BU
A790-WH
A794-GN
A790-WH
A793-YL
FRONTSUSPENSION
SOLENOID
7U0985
REAR SUSPENSION
SOLENOID
7U0985
NOTE C
BK-00
GS
MTRBAT
MOTOR
9
7
1
8
3
10
5
2
6
4
3
4
5
7
1
9
6
2
8
8
7
3
2
6
5
4
1
2
3
L1
112-PU
3
2
1
1
2
3
407-PK
A
B
C
D
J
BK-18
BK-18
4
3
3
2
1
1
T
T
507-WH
506-PU
1
2
L42
L42
L42
L35
614-PU
L26
L35
D350D ONLY
F
L26
L13
L38
F
L38
F
FL39
F
200-BK-14
F
L31
F
L30
F
F
L28
101-RD-14
173-YL
L30
130-GN
F
R
L17
L12
L19
L17
L23
L19
1
2
L41
L29
L41
L21
L41
L21
L27
F
L18
L18
L41
L25
L18
L40
L40
F
L39
J
U
540-WH
F
310-PU
F
K
F
L21
H
L21
H
L13
L38
D
L38
F
200-BK
454-GN
H
200-BK-14
6
F
H
10
2
BU-18
RD-18
BK-18
9
F
F
F
F
F
F
101-RD
200-BK
OPERATOR STATION
H
H
H
H
H
F
443-YL
H
L6
F
L6
H
F
1
L54
H
L54
H
L54L54
M
F
H
L54
F
L8
B
L38
112-PU-14
200-BK-14
619-GN
611-PU-14
540-WH
200-BK-14
614-PU
322-GY
200-BK-14
L38
L48
L31
H
200-BK
200-BK-14
200-BK
L48
L19
L18
L15
L37
W
L37
L37
L5
L17
H
L16
F
F
L16
L37
L47
L15
L37
L47L47
F
L15
L37
L35
L34
L14
L14
L5
L25
L33
F
L13
L5
L25
L34
4
7
6
5
9
8
3
2
1
L5
101-RD
F
L5
112-PU-14
L24
L4
L2
200-BK
L19
C
L3
200-BK
200-BK
200-BK
446-PU
200-BK
C
140-BU
L31
C
L3
614-PU
F
L7
614-PU
L22
L34
L31
L22
F
L33
201-BK
101-OR-6
200-BK
200-BK-14
302-OR
327-PK-14
L32
614-PU
F
200-BK
F
F
F
L19
D
L32
L31
L13
L31
L10
610-OR-14
L9
200-BK
124-GN-14
L33
L9
173-YL
L8
F
140-BU
L8
L10
201-BK
L7
L7
L6
L10
L2
L6
201-BK
L12
G
L2
L29
L31
L4
L29
L19
L3
L36
L5
L2
R
419-YL
407-PK
140-BU
573-GN
R
L28
202-BK
573-GN
L36
1
2
3
2
L10
1
L24
125-OR
A790-WH
A793-YL
A794-GN
L
200-BK-14
K
200-BK-14
619-GN-14
611-PU-14
3
L9
CONVERTER
TEMPSW
6T4044
L10
PARK BRAKE
INHIBITSW
6T1546
10
4
3
2
6
9
8
7
5
1
472-OR
490-GN
498-WH
454-GN
539-BU
322-GY
327-PK-14
121-YL
311-WH
302-OR
203-BK
207-BK
BU-18
RD-18
BK-18
WITH D350D REPLACE
JUMPER WIRE AS.
WITH SWITCHAS.
L7
L48
L3
310-PU
310-PU
419-YL
140-BU
572-PU
604-OR
614-PU
472-OR
606-GY
605-YL
446-PU
321-BR
407-PK
A789-PK
122-BU
125-OR
490-GN
201-BK
498-WH
477-YL
449-BU
5
L32
614-PU
614-PU
614-PU
D
614-PU
614-PU
114-GN
101-RD
200-BK
165-YL
113-OR
123-WH
173-YL
125-OR
HORN
BACK UP ALARM
START AID
OPERATOR MONITOR
101-RD
DIAGNOSTIC
CONNECTOR
310-PU
311-WH
302-OR
203-BK
207-BK
454-GN
498-WH
490-GN
472-OR
F
624-YL
322-GY
614-PU
20
102-BU-14
19
18
17
16
614-PU
322-GY
624-YL
507-WH
503-BR
504-YL
505-BU
327-PK-14
121-YL
15
14
13
118-GY
110-GN
12
10
9
173-YL624-YL
114-GN
8
322-GY
1
614-PU
6 610-OR-14
5
500-BR
506-PU
4
118-GY
118-GY
7
3
2
11
GAGES
506-PU
614-PU
614-PU
121-YL
CAB LAMP
101-RD
101-RD
112-PU-14
112-PU
112-PU
112-PU
SUSPENSIONCONTROL
311-WH
302-OR
203-BK
207-BK
304-WH
105-BR
306-GN
101-RD
308-YL
109-OR
310-PU
112-PU
109-OR-6
109-OR
109-OR-6
304-WH-10
101-RD-6
109-OR-6
DDD
FFF
FH
FHHF
ALTBREAKER
9S0174
109-OR-6
109-OR-10
101-RD-6
101-RD
101-RD-14
101-RD-14
101-RD-14
105-BR
105-BR
KEYBREAKER
6N8589
START
RELAY
9F3099
306-GN
306-GN
304-WH
200-BK
304-WH
304-WH-10109-OR-10
FRONT
WIPER SW
3T6655
REAR
WIPERSW
3T6655
RUNNING
LAMPSW
8C9636
HORN SW
3T2357
CAB
LAMPSW
6T3990
10
10
10
10
10
10112-PU
10
200-BK-14
200-BK-14
619-GN-14
611-PU-14
L51
RETARDER SW
6T1546
D350D STD
D25D ATT
B
WP
L
H
B
B
WP
L
H
B
200-BK
614-PU
540-WH
L27
HORN
HIGH TONE
7T0970
HORN
LOWTONE
7T0969
L30
A789-PK
604-OR
572-PU
490-GN
321-BR
201-BK
614-PU
L24
L28
200-BK
103-YL
200-BK
FRONT WIPER
MOTOR
6T6216
504-YL
110-GN
503-BR
505-BU
624-YL
200-BK-14
605-YL
472-OR
614-PU
604-OR
606-GY
321-BR
125-OR
A790-WH
A793-YL
A794-GN
501-GN
118-GY
500-BR
502-OR
624-YL
200-BK-14
103-YL
501-GN
118-GY
500-BR
502-OR
602-WH
103-YL
200-BK
DOME
LAMP
8C9678
CAB LAMP
5U5915
REAR WIPER
MOTOR
6T6216
DOOR
LAMPSW
9D4068
504-YL
110-GN
503-BR
505-BU
602-WH103-YL
614-PU
U
200-BK
3
6
572-PU
604-OR
614-PU
321-BR
490-GN
A789-PK
201-BK
122-BU
125-OR
5
2
2
4
3
1
6
4
7
5
2
1
3
200-BK-14
624-YL
GN
GY
BR
OR
4
2
3
1
H
L
MOTOR
T
3
2
1
BK
RD
WH
RD-00
122-BU
125-OR
709-OR
821-YL
815-GN
710-GN
705-PK
202-BK
D
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
TO VEHICLESTRUCTURE
INTERNAL ELECTRICAL
CONNECTIONTO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L #
CIRCUIT GROUPING
DESIGNATION
112-PU-14
102-BU-14
103-YL-14
610-OR-14
200-BK
308-YL
107-WH-14
105-BR
306-GN
109-OR
109-OR-6
109-OR-6
112-PU
112-PU-10
308-YL
MAIN POWER
RELAY
3T0376
502-OR
501-GN
F
112-PU-14
112-PU-14
112-PU
112-PU
112-PU
113-OR
140-BU
125-OR
122-BU
118-GY
110-GN
122-BU
130-GN
140-BU
FRONT WIPER
REAR WIPER
AIRDRYER
INDICATOR LAMP
RETARDER SOLENOID
HF
124-GN-14
101-RD
101-RD
101-RD-14
101-RD
101-RD-14
101-RD-14
112-PU-14
112-PU-14
112-PU-10
103-YL-14
102-BU-14
107-WH-14
AIR CONDITIONER
BREAKER
6N8589
TURN/PARK
BREAKER
9G9487
HEADLAMP
BREAKER
6N8589
ENGINE
SHUTDOWN BREAKER
9G9487
101-RD-6
304-WH-10
306-GN
304-WH
306-GN
105-BR
105-BR
102-BU-14
107-WH-14
103-YL-14
103-YL
124-GN-14
165-YL
123-WH
113-OR
173-YL
125-OR
122-BU
140-BU
130-GN
110-GN
118-GY
BRAKE AIR PRESSURE
GAGE LAMP
2U4086
BRAKE AIR PRESSURE
GAGE LAMP
2U4086
614-PU
200-BK
614-PU
200-BK
123-WH
123-WH
123-WH
123-WH
123-WH
200-BK
130-GN
201-BK
443-YL
606-GY
605-YL
446-PU
477-YL
449-BU
451-BR
450-YL
449-BU
477-YL
F
614-PU200-BK
123-WH
451-BR
450-YL
614-PU200-BK
123-WH
200-BK
200-BK
614-PU
123-WH
SPEEDOMETER
8C9806 (NOTE C)
8C9807 (NOTE F)TACHOMETER
8C9839
SERVICE
METER
6T7337
200-BK200-BK
200-BK
498-WH
130-GN
RIGHTTURN
INDICATOR
DIFFERENTIAL
LOCKINDICATOR
RETARDER
INDICATOR
HI BEAM
INDICATOR
SERVICE BRAKE
INDICATOR
TORQUE
CONVERTER LOCK
INDICATOR
9
2
1
3
10
4
5
8
6
7
8
7
2
6
1
10
5
301-BU
3
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
4
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTION
9
SYMBOL
CONNECTOR
ELECTRICAL CONNECTION
TO VEHICLESTRUCTURE
INTERNAL ELECTRICAL
CONNECTIONTO SURFACE
OF COMPONENT
LEFT TURN
INDICATOR
10A
10A
10A
10A
10A
15A
BLADE, SPADE, RING,
OR SCREW TERMINAL
15A
10A
10A
W
G
-
+24
W
G
-
+24
+-
A794-GN
A793-YL
A790-WH
130-GN
454-GN
130-GN
539-BU
540-WH
611-PU-14472-OR130-GN
130-GN
490-GN
472-OR
454-GN
498-WH
200-BK
540-WH
BK-18
W
BK-6
D
L7
RD-00
403-GN
140-BU
113-OR
446-PU
443-YL
D
LOCK UP
PRESSURE SW
6T1546
200-BK-14
NOTE E
BK
200-BK
572-PU
490-GN
FAULT
ALARM
9G9813
FRONTBRAKE
OVERSTROKESW
5U1452
PK
408-WH
410-WH
409-OR
409-OR201-BK
YL
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
200-BK-14
OR
RD-00
WH
RD
GN
302-OR
H
RESISTOR
9G1950
BLOWERSW
6P3236
515-GY-14
BU
BLOWER
9G8697
BLOWER
9G8693
WH/RD-14
WH/RD-14
BK-14
BK-14
GREEN
200-BK-14
515-GY-14
200-BK-14
515-GY-14
614-PU
200-BK-14
RD
BK
410-WH
201-BK
124-GN-14
614-PU
521-YL-14
522-WH-14
200-BK-14
BLUE
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
124-GN-14
521-YL-14
515-GY-14
516-GN-14
517-BU-14
522-WH-14
200-BK-14
THERMOSTAT
9P3498
522-WH-14
124-GN-14
521-YL-14
200-BK-14
614-PU
200-BK-14
101-RD-14
L #
H
3
H
2
H
1
2
1
CIRCUIT GROUPING
DESIGNATION
T
OR
GRN
BLU
BLK
RED
L52
1
2
2
1
H
H
MOTOR
L17
MOTOR
H
G
200-BK
200-BK-14
200-BK-14
109-OR-6
304-WH-10
101-RD-6
101-RD-6
304-WH-10
C
L9
469-GN
201-BK
311-WH
200-BK
2
1
2
1
709-OR
821-YL
815-GN
710-GN
705-PK
202-BK
125-OR
122-BU
201-BK
NOTE B: D25D ONLY
NOTE C: D30DONLY
NOTE D: ATTACHMENT ON D25D
NOTE E: NEUTRAL START TERMINALSCONNECTED INSIDE HARNESS D
NOTE F: D25D AND D350D ONLY
FUEL
LEVEL SW
9W2403
COOLANT
TEMPSW
7X5988
COOLANT
TEMPSW
7N9785
L22
T T
614-PU
R
B
C
614-PU
123-WH
165-YL
MASTER
FAULT LAMP
7N1996
OPERATOR
MONITORTEST SW
6T6066
CONVERTER
TEMP GAGE
4W2066
START
AID SW
6T6066
310-PU
201-BK
201-BK
415-GN
200-BK
2
411-PK
200-BK
200-BK
200-BK
200-BK-14
200-BK
3
2
5
4
1
1
F
KEY
START SW
9G7641
TURN
SIGNAL SW
9G5589
BK
BK
B
BK-18
308-YL
326-PU
306-GN
105-BR
OPERATOR
MONITOR
3T9100
7
D
6
4
537-GN103-YL
103-YL
3
605-YL
606-GY
540-WH
540-WH
539-BU
539-BU
200-BK-14
200-BK
201-BK
200-BK
200-BK
105-BR
308-YL
306-GN
107-WH-14
L36
DASH
PANEL
GROUND
5
F
YL-18
WH-18
BK-18
BU-18
RD-18
OR-187
4
7
3
2
7
5
8
1202-BK
202-BK
573-GN
15A
8
7
6
140-BU
202-BK
815-GN
710-GN
705-PK
709-OR
821-YL
5
1
3
2
6
5306-GN
326-PU
200-BK
327-PK-14
107-WH-14
+ BATTERY
GROUND
ENG SOL
RESET
OFF(KEY)
OFF
4
3
60A
F
2
1
14
5
6
2
3
472-OR
REAR BRAKE
OVERSTROKESW
5U1452
REVERSE
LAMP
5U5915
L10
NOTE A: D350D ONLY
C
ST
ON
C
614-PU
L13
200-BK
OFF
200-BK
B
S
C
200-BK
R
201-BK
125-OR
A790-WH
A793-YL
A794-GN
B
A
D
C
MOTOR
407-PK
419-YL
140-BU
200-BK-14
REVERSE
ALARM
3T1815
443-YL
200-BK
507-WH
200-BK
506-PU
321-BR
A
B
C
321-BR
200-BK
CONVERTER
TEMPSENDER
6N5926
614-PU
604-OR
614-PU
REAR
WASHER MOTOR
2U4570
604-OR
FRONT
WASHER MOTOR
2U4570
605-YL
LH STOP/TAIL/TURN
LAMP
6U4358
RH STOP/TAIL/TURN
LAMP
6U4358
MOTOR
310-PU
311-WH
START AID
SOLENOID
9G4365
572-PU
490-GN
321-BR
310-PU
311-WH
BACK UP
ALARMSW
3T3132
321-BR
121-YL
A789-PK
408-WH
201-BK
E
L2
EF
ED
611-PU
610-OR-14 619-GN-14
611-PU-14
G
611-PU-14
610-OR-14
173-YL
200-BK
619-GN
611-PU-14
604-OR
A789-PK
408-WH
201-BK
604-OR
173-YL
BU-18
RD-18
BK-18
DIMMER SW
2H1855
1
2
H
G
F
E
3
BK-18
RD-18
BU-18
OPERATOR STATION
L2L2
L28
F
103-YL-14
103-YL
D
C
B
A
F
STOP LAMP SW
2M9346
PARK BRAKE
INHIBITSW
6T1546
BRAKE AIR
PRESSURE SW
9G8009
488-WH408-WH
BRAKE AIR
PRESSURE SW
9G8009
488-WH201-BK
521-YL-14
513-OR-14
REFRIGERANT
SWITCH
5V5698
A/C CLUTCH
SOLENOID
7U5517
522-WH-14
513-OR-14
6
4
3
2
HI BEAM
HEAD LAMP
6U0339
LOW BEAM
HEAD LAMP
5U5915
PARK-TURN
LAMP
2U4432
1
5
2
4
1
3
2
1
OPERATOR STATION
PARK-TURN
LAMP
2U4432
LOW BEAM
HEAD LAMP
5U5915
HI BEAM
HEAD LAMP
6U0339
CD
CD
BC
AC
C
A789-PK
200-BK
BK-18
BK-18
A
BK-18
3
2
1
200-BK
327-PK-14
200-BK-14
450-YL
451-BR
413-BR
201-BK
200-BK-14
200-BK-14
200-BK-14
L27
TACHOMETER
ENGINE SPEED
PICK UP
7T6945
ENGINE OIL
PRESSURESW
6T1546
109-OR-6
ENGINE
SHUTDOWN
SOLENOID
6T4122
FUEL SW
9W3187
ALTERNATOR
5N5692
DC
403-GN
200-BK-14
CD
522-WH-14
521-YL-14
200-BK-14
327-PK-14
322-GY
450-YL
451-BR
311-WH
207-BK
203-BK
302-OR
403-GN
201-BK
413-BR
406-PU
469-GN
405-GY
619-GN
611-PU-14
614-PU
540-WH
539-BU
ENGINE SHUTDOWN
CONTROL
9G9287
FLASHER
8D6946
FRAME
GROUND
203-BK
207-BK
OPERATOR STATION
BK-6
200-BK
322-GY
322-GY
200-BK
200-BK-14
200-BK-14
611-PU-14
619-GN-14
200-BK
540-WH
614-PU
619-GN
200-BK-14
611-PU-14
539-BU
614-PU
611-PU-14
L11
R
L11
L26
L12
L35
M7U567000A-6
N 7U541500A-5
P7U567100A-4
Q 7U5416 00 A-5
S 7U362901A-5
L26
L11
L25
R
C
200-BK-14
405-GY
201-BK
ALT
+
R
GN
GY
BR
OR
4
2
3
1
H
L
MOTOR
619-GN-14
2OO-BK
539-BU
614-PU
200-BK-14
BK-00
TO ENG
BLOCK
TO
FRAME
IGN
SEND
GRD
19
7
13
14
5
6
10
9
8
1
11
15
3
2
4
16
17
18
12
20
1
2
3
3
9
2
6
7
5
4
8
1
4
6
5
7
2
3
8
1
L18
C
L3
9
10
5
T
2
1
3
4
6
4
3
1
UNLESS OTHERWISE SPECIFIED: ALLWIREIS16 GAGE
COMPONENTS ARE SHOWN INSTALLED ONAFULLY
OPERABLE MACHINE WITH THE KEY AND ENGINEOFF,
AND THE XMSN SHIFTER IN NEUTRAL.
THIS SCHEMATICISFOR THE D25D,D30D, AND D350D
ARTICULATED DUMP TRUCKS (9X7091 CHG 00).
2
2
1
8
4
109-OR-6
9 8
7
9
8 7
6 5
4
6 5
4
3 2
1
F
E
D
3
2 1
C
B
A
D29884
