2008-2015 Peterbilt 389 Electrical Wiring Diagrams Manual
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A DIVISION OF
A
1
B
C
D
E
F
G
H
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K
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2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
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H
I
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K
L
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A0
DWG
SIZE
TITLE
SH
NO.
1) INDEX
2) HARNESS ARCHITECTURE ( BLOCK DIAGRAM )
3) LOCATION OF MAJOR COMPONENTS
4) LOCATION OF MAJOR COMPONENTS
5) MAIN CAB
6) MAIN CAB ( CONTINUED )
7) MAIN CAB ( CONTINUED )
8) MAIN CAB ( CONTINUED )
9) MAIN CAB ( CONTINUED )
10) MAIN CAB ( CONTINUED )
11) MAIN CAB ( CONTINUED )
12) MAIN CAB ( CONTINUED )
13) MAIN CAB ( CONTINUED )
14) MAIN CAB ( CONTINUED )
15) MAIN CAB ( CONTINUED )
16) ROOF
17) CAB AUDIO DASH
18) CAB AUDIO ROOF
19) CAB AUDIO EHD
20) DOOR HARNESS ( LEFT )
21) DOOR HARNESS ( RIGHT )
22) 70" SLEEPER
23) 70" SLEEPER LOAD CENTER WO LVD
24) 70" SLEEPER LOAD CENTER W/ LVD
25) 63" HIGH ROOF SLEEPER BOX
26) 63" LOW ROOF SLEEPER BOX
27) 63 / 48" LOAD CENTER WO LVD
28) 63 / 48" LOAD CENTER W/ LVD
29) 48" HIGH ROOF SLEEPER
30) 48" LOW ROOF SLEEPER BOX
31) 36" SLEEPER BOX
32) 36" LOAD CENTER WO LVD
33) 36" LOAD CENTER W/ LVD
34) SLEEPER AUDIO - 36"
35) SLEEPER AUDIO - 48 / 63 / 70"
36) VORAD CAB HARNESS
37) VORAD CHASSIS HARNESS
38) TRAILER HARNESS
39) CHASSIS HARNESS
40) FIREWALL HARNESS
41) HOOD HARNESS
42) HOOD HARNESS
43) ABS CHASSIS
44) C15 ENGINE
45) C13 ENGINE
46) C9 ENGINE
47) ISX ENGINE
48) ISM ENGINE
49) ISL ENGINE
50) C9 / C13 / C15 CHARGE / START
51) ENGINE BRAKE
52) ISX CHARGE / START
53) ISM CHARGE / START
54) ISC / ISL CHARGE / START
55) CAT FUSE HARNESS
56) CUMMINS FUSE HARNESS
57) XMSN - ALLISON DASH
58) XMSN - ALLISON DASH ( CONTINUED )
59) XMSN - ALLISON DASH ( CONTINUED )
60) XMSN - ALLISON DASH ( CONTINUED )
61) XMSN - ALLISON CHASSIS
62) XMSN - AUTOSHIFT DASH
63) XMSN - AUTO / ULTRA XMSN
64 XMSN - ULTRASHIFT DASH
65) XMSN - ULTRASHIFT W/ VORAD DASH
66) XMSN - ULTRASHIFT W/ VORAD XMSN
Schematic - 389 Model Family Electrical
P94-6101
-
01
A DIVISION OF
A
1
B
C
D
E
F
G
H
I
J
K
L
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
G
H
I
J
K
L
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A0
DWG
SIZE
MAIN CAB
HARNESS
POWERTRAIN
ENGINE HARNESS
TRANSMISSION HARNESS
TRAILER
HARNESS
CHASSIS
HARNESS
FIREWALL
HARNESS
CAB AUDIO
HOOD
HARNESS
ROOF
HARNESS
SLEEPER
HARNESS
VORAD
CAB
HARNESS
VORAD
CHASSIS
HARNESS
ABS
CHASSIS
HARNESS
HARNESS ARCHITECTURE
DOOR
HARNESS
DPF
SLEEPER
AUDIO
FUSE
HARNESS
CHARGE / START
DPF
Schematic - 389 Model Family Electrical
P94-6101
-
02
A DIVISION OF
A
1
B
C
D
E
F
G
H
I
J
K
L
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
G
H
I
J
K
L
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A0
DWG
SIZE
SLEEPER LOAD CENTER
SLEEPER
( OPTIONAL )
FUSE BLOCK
LOW
( OPTIONAL )
J1587 DATA BUS CONNECTOR
ABS ELECTRONIC CONTROL UNIT
RELAY ASSEMBLY
CAB ELECTRONIC CONTROL UNIT
REMOTE KEYLESS ENTRY MODULE
MIRROR CONTROL MODULE
( OPTIONAL )
VORAD ECU
AUDIO
TURNSTALK MODULE
FIREWALL CONNECTOR HOOD AND TRAILER HARNESS
FIREWALL CONNECTOR
ENGINE HARNESS FIREWALL CONNECTOR
ABS HARNESS FIREWALL CONNECTOR
DPF ( V )
DPF ( H )
SLEEPER LOAD CENTER
SLEEPER LOW VOLTAGE DISCONNECT
FUSE BLOCK
LOW VOLTAGE DISCONNECT
J1587 DATA BUS CONNECTOR
ABS ELECTRONIC CONTROL UNIT
RELAY ASSEMBLY
CAB ELECTRONIC CONTROL UNIT
REMOTE
( OPTIONAL )
VORAD
( OPTIONAL )
GPSNET MODEM
( OPTIONAL )
ANTENNA MULTIPLEXER
( OPTIONAL )
AUDIO AMPLIFIER
( OPTIONAL )
TURNSTALK MODULE
FIREWALL CONNECTOR -
FIREWALL CONNECTOR - CHASSIS HARNESS
ENGINE HARNESS FIREWALL CONNECTOR
ABS HARNESS FIREWALL CONNECTOR
GPS ANTENNA
( OPTIONAL )
DPF ( V )
DPF ( H )
LOCATION OF MAJOR COMPONENTS
Schematic - 389 Model Family Electrical
P94-6101
-
03
A DIVISION OF
A
1
B
C
D
E
F
G
H
I
J
K
L
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
G
H
I
J
K
L
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A0
DWG
SIZE
SCALE 1:16
AUDIO
( OPTIONAL )
GPSNET
( OPTIONAL )
VORAD
( OPTIONAL )
REMOTE KEYLESS ENTRY
( OPTIONAL )
MIRROR
( OPTIONAL )
SLEEPER LOW VOLTAGE DISCONNECT
( OPTIONAL )
CLOSET WALL
NOTE:
IN 36" SLEEPER, LOAD CENTER IS MOUNTED ON FRONT WALL
IN 70" SLEEPER, LOAD CENTER IS MOUNTED UNDER BUNK
CAB REAR VIEW
REAR WALL AND BULKHEADS NOT SHOWN
SLEEPER
REAR VIEW
REAR WALL AND BULKHEADS NOT SHOWN
SCALE 1:6
FUSE BLOCK
ANTENNA MULTIPLEXER
( OPTIONAL )
AUDIO AMPLIFIER
(
GPSNET MODEM
VORAD ECU
REMOTE MODULE
MIRROR CONTROL MODULE
ABS ELECTRONIC CONTROL UNIT
FIREWALL CONNECTORS
FUSE BLOCK
LOW VOLTAGE DISCONNECT
( OPTIONAL )
J1587 DATA BUS CONNECTOR
RELAY ASSEMBLY
CAB ELECTRONIC CONTROL UNIT
SLEEPER LOAD CENTER
CLOSET
CAB
LEFT SIDE VIEW
SLEEPER
LEFT SIDE VIEW
ABS ELECTRONIC CONTROL UNIT
MIRROR CONTROL MODULE
( OPTIONAL )
REMOTE KEYLESS ENTRY MODULE
( OPTIONAL )
CAB ELECTRONIC CONTROL UNIT
LOW VOLTAGE DISCONNECT
( OPTIONAL )
RELAY ASSEMBLY
GPSNET MODEM
( OPTIONAL )
VORAD ECU
( OPTIONAL )
AUDIO AMPLIFIER
( OPTIONAL )
ANTENNA MULTIPLEXER
( OPTIONAL )
J1587 DATA BUS CONNECTOR
TURN STALK MODULE
TURN STALK MODULE
FIREWALL CONNECTOR
HOOD AND TRAILER
FIREWALL CONNECTOR
ENGINE AND CHASSIS
ENGINE HARNESS FIREWALL
CONNECTOR
ABS HARNESS FIREWALL
CONNECTOR
ENGINE HARNESS FIREWALL CONNECTOR
ABS HARNESS FIREWALL CONNECTOR
GPS ANTENNA
( OPTIONAL )
GPS ANTENNA
DIAGNOSTIC CONNECTOR
J1939 CONNECTOR
J1939 CONNECTOR
DIAGNOSTIC CONNECTOR
LOCATION OF MAJOR COMPONENTS
OPTIONAL FEED-THROUGH FOR
AUTOMATIC TRANSMISSION
VORAD
DUAL STATION
RH FIREWALL FEED - THROUGH
Schematic - 389 Model Family Electrical
P94-6101
-
04
A DIVISION OF
A
1
B
C
D
E
F
G
H
I
J
K
L
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
G
H
I
J
K
L
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A0
DWG
SIZE
YEL2422-0
YEL2412-0
WHT2100-3
YEL2311-0
YEL2312-0
YEL2121-0
GRA7133-0
YEL2951-0
ORN1229-0
GRA7131-5
YEL2311-1
ORN9920-1
YEL2422-1
YEL2312-1
YEL2422-2
BLU4582-0
YEL2322-0 YEL2322-0
YEL2412-1
YEL2312-3
BLU4581-1
BLU4525-0 BLU4525-0
YEL2311-5
BLU4526-0 BLU4526-0
YEL2332-0 YEL2332-0
YEL2311-2
YEL2312-2
YEL2422-3
YEL2311-4
YEL2415-6
YEL2415-13
YEL2312-5
LH
TURN
SIGNAL
ENGINE
SPARE
# 1
ENGINE
SPARE
# 2
PRESSURE SWITCH
HOOD / TRAILER
CONNECTOR
( TOP )
CHASSIS FIREWALL
BLU4582-0
BLU4581-1
GRA7131-3
YEL5971-1
YEL2412-6
YEL2422-4
GRA7131-1
ORN1229-1
YEL2412-5
RED2415-0
WHT2100-3
GRA7133-0
YEL5971-1
ORN9920-1
YEL2951-0
RIGHT
TURN
SIGNAL
YEL2311-3
YEL2312-4
YEL2121-1
BLU4527-0
BLU4527-0
ORN1229-3
ORN3971-0
BLK0782-0
ORN3971-0
BLK0782-0
GRN4140-2
GRN4140-2
GRN4140-8
BLU4553-1
GRN4140-8
BLU4553-1
OUTSIDE
AIR TEMP
A ( + ) B ( - )
RED5910-15
GRA5917-2
GRA5912-2
GRA5911-3
VORAD
CONNECTOR
YEL2311-9
YEL2312-9
YEL2415-10
GRA5917-2
YEL2415-14
RED5910-15
GRA5912-2
GRA5911-3
WHT2400-0 WHT2400-0
RED9900-1
RED9900-1
TRAILER
J560
SPARE
ORN9900-1
SPARE
TRAILER
CIRCUIT
ORN9900-1
TRAILER
BRAKE
STOP LAMP
POWER
ORN3100-2
YEL2311-7
YEL2312-7
YEL2311-8
YEL2312-8
BLU4539-0
BLU4538-0
BLU4537-0
BLU4536-0
BLU4518-0
BLU4534-0
VIO0862-4 VIO0862-4
BLU4539-0
GRN4140-10
RED1930-7
GRN4140-10
RED1930-7
BLU4518-0
BLU4538-0
BLU4537-0
BLU4536-0
BLU4534-0
BRN9920-1
BRN9920-0
CHEVRON
TRAILER ABS
LIGHT
BRN9920-2
YEL2111-0 YEL2111-0
YEL2112-0 YEL2112-0
YEL2121-2
YEL2122-0
YEL2122-0
GRA2422-4
YEL2422-7
YEL2428-8
RED2415-2
RED2415-1
YEL2415-12
"KLINE"
"LEFT FRONT TURN"
"TURN R REAR"
"TURN L REAR"
"AXLE TEMP 2"
"AXLE TEMP 1"
"TRANSFER CASE OIL TEMP"
"ANALOG RETURN"
"AUX XMSN OIL TEMP"
"BRAKESAVER OIL TEMP"
"GENERAL OIL TEMP"
"AUX XMSN OIL TEMP # 3"
"PTO OIL TEMP"
"RIGHT FUEL"
"LEFT FUEL"
"FUEL FILTER RESTRICTION"
"CLEARANCE LTS"
"RIGHT FRONT TURN"
"ANALOG RETURN"
"GROUND CHASSIS"
"PWR SUPPLY SENSOR +5"
"ACCESSORY POWER"
"TAIL / SIDE MARKER"
"LEFT FRONT TURN"
"LEFT FRONT TURN"
"FOG LIGHT"
"TRAILER LIGHT"
"RIGHT FRONT TURN"
"LH HIGH BEAM OUT"
"TRAILER BW STOP LT"
"RIGHT FRONT TURN"
"CLEARANCE LT"
"TRAILER J560"
"GROUND"
"AUXILIARY"
"REMOTE A / C THERM"
"TAIL / SIDE MARKER"
"TAIL / SIDE MARKER"
"RH LOW BEAM"
"LH LOW BEAM"
"AIR_CONDITIONER"
"RH HIGH BEAM OUT"
"HORN RELAY"
"WIPER MOTOR LOW"
"WIPER POWER"
"WIPER MOTOR PARK"
"WIPER MOTOR HIGH"
"TRAILER TABS2"
ORN9920-2
ORN9920-2
R
E
D
9
9
0
0
-
2
RED9900-2
ENG / CHASSIS
CONNECTOR
( BOTTOM )
SH 12, REFDES K4 / K9 / K16 / K18 / K19
SH 10, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 9, REFDES S44
SH 9, REFDES S50
SH 10, REFDES CB1
SH 9, REFDES S42
SH 12, REFDES K5 / K13 / K17
SH 12, REFDES K4 / K9 / K16 / K18 / K19
SH 10, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 12, REFDES K1 / K2 / K8
SH 9, REFDES S24
SH 12, REFDES K1 / K2 / K8
SH 10, REFDES S6
SH 6, REFDES P13
SH 13, REFDES J27
SH 13, REFDES J27
SH 13, REFDES J27
SH 13, REFDES J31
SH 13, REFDES J31
SH 13, REFDES J31
SH 14, REFDES S73
SH 14, REFDES J50
SH 14, REFDES J50
SH 13, REFDES S79
SH 13, REFDES S79
SH 13, REFDES J31
SH 6, REFDES S108
SH 12, REFDES K7 / K11 / K12
SH 12, REFDES K1 / K2 / K8
SH 12, REFDES K1 / K2 / K8
SH 6, REFDES J12
SH 6, REFDES J11
SH 6, REFDES J12
SH 6, REFDES J11
SH 6, REFDES J12
SH 9, REFDES P45
SH 8, REFDES S21
SH 14, REFDES P12
SH 6, REFDES J11
SH 6, REFDES J12
SH 13, REFDES S85
SH 13, REFDES J31
SH 13, REFDES J31
SH 13, REFDES J31
SH 13, REFDES J31
SH 13, REFDES J31
SH 13, REFDES J31
SH 13, REFDES S79
SH 13, REFDES S60
SH 13, REFDES J27
SH 6, REFDES J11
SH 6, REFDES J11
SH 6, REFDES J11
SH 6, REFDES J12
SH 9, REFDES J10
SH 13, REFDES J27
SH 10, REFDES J80
SH 12, REFDES K7 / K11 / K12
SH 12, REFDES K7 / K11 / K12
SH 10, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
MAIN CAB HARNESS
S43
J104
1
S92
T2
1
T1
1
J7 1 J8 1
J4
A B C
J1
C4
C7
D4
B5
C5
E4
B2
F1
B4
G5
G2
A4
F8
G4
A1
C6
A7
B7
G8
F4
F2
B1
E3
A2
G1
A5
J2
D3
D1
G1
B7
C2
F2
E1
E4
B2
F4
A1
B4
C3
A2
C1
G7
C5
F7
E2
E6
E3
D2
F5
A4
G8
G2
F1
B1
J9 A B
S20
S19
S12
S11
S9
S8
S7
S5
S2
S1
J6
1 P71 1
P70
1
J5 1
Schematic - 389 Model Family Electrical
P94-6101
-
05
A DIVISION OF
A
1
B
C
D
E
F
G
H
I
J
K
L
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
G
H
I
J
K
L
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A0
DWG
SIZE
YEL2951-0
RED2951-0
FOG / DR
YEL2951-0
RED2951-0
YEL2951-1
BRN2622-90
WHT1500-2
ABS
CONNECTOR
RED5110-1
BLK3130-1
YEL3130-1
GRA3130-1
GRA5110-1
BLK3130-1
YEL3130-1
GRA3130-1
GRA5110-1
RED5110-1
TURN STALK
CONNECTOR
12 WAY
GRN0813-0
ORN5910-10
RED5910-11
RED5910-12
RED5910-13
RED5910-14
RED5910-15
GRA5911-2
YEL2312-2
YEL2311-2
YEL2322-0
YEL2332-0
RED2300-0
RED2100-0
WHT2990-1
PRP5911-1
PRP5913-1
PRP2310-1
PRP2145-1
PRP2142-1
MFTS
MODULE 1
MFTS
MODULE
12 WAY
YEL2312-2
YEL2311-2
YEL2322-0
YEL2332-0
PRP5911-1
PRP5913-1
PRP2310-1
PRP2145-1
PRP2142-1
GRA2412-1
GRA2412-1
GRA5911-2
YEL2415-14
PRP2980-1
GRN2990-3
GRN2990-2
GRA2141-1
YEL2415-14
RED2300-2
GRN2990-1
RED2990-1
RED2990-1
PRP2980-1
BRN2622-90
WHT1500-2
ORN2990-1
GRA2141-1
WHT5100-1
ORN2990-1
GRN2990-4
WHT2990-1
WHT5100-1
GRA5912-8
GRA5912-8
PARK BRAKE
PRESSURE SW
WHT1500-1
WHT1500-1
WHT1500-5
BRN4392-0
BRN4392-1
BRN4392-2
BRN2622-15
BRN2622-15
YEL0813-0
RED2300-4
YEL2311-7
YEL2311-7
WHT2990-2
WHT2990-2
RED2300-5
YEL2312-7
YEL2312-7
ORN5110-0
ORN5110-0
BRN5112-1
BRN4392-3
PARK
SIGNAL
RED2300-3
RED2300-1
RED2100-1
YEL5913-2
YEL5913-2
YEL2111-0
YEL2111-0
YEL2112-0
YEL2112-0
YEL2121-2
YEL2121-2
YEL2122-0
YEL2122-0
BRN5112-1
RED2100-7
RED2100-8
YEL2415-15
YEL2415-15
"SWITCH COMMON"
"WIPER LOW SPD INPUT"
"WIPER HIGH SPEED INPUT"
"WASHER INPUT"
"L / R TURN INPUT"
"HDLP FLASH INPUT"
"HDLP HIGH / LOW"
"MARKER LAMP FLASH INPUT"
YEL0813-0
GRN0813-0
"BRAKE LAMP"
"TURN R REAR"
"RH HIGH BEAM OUT"
"PARK BRAKE"
"TURN R PWR"
"TURN R FRONT"
"MODULE GROUND"
"HDLP HIGH / LOW"
"TURN R FRONT"
"HDLP HIGH PWR"
"TURN R PWR"
"WIPER LOW OUT"
"HDLP ON / OFF"
"LH LOW BEAM"
"LH HIGH BEAM"
"SWITCH COMMON"
"HDLP LOW PWR"
"TURN L PWR"
"TURN L PWR"
"TURN L REAR"
"WASH PUMP PWR"
"TURN L FRONT"
"TURN L FRONT"
"RH LOW BEAM"
"HAZARD INPUT"
"IGNITION PWR"
"WASHER PUMP"
"MODULE GROUND"
"HDLP FLASH INPUT"
"L/R TURN INPUT"
"WASHER INPUT"
"MODULE POWER"
"WIPER LOW SPD INPUT"
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 5, REFDES J1
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 12, REFDES K7 / K11 / K12
SH 12, REFDES K7 / K11 / K12
SH 12, REFDES K7 / K11 / K12
SH 12, REFDES K7 / K11 / K12
SH 9, REFDES S46
SH 9, REFDES S45
SH 10, REFDES FB7
SH 12, REFDES K1 / K2 / K8
SH 12, REFDES K7 / K11 / K12
SH 12, REFDES K7 / K11 / K12
SH 12, REFDES S107
SH 5, REFDES J1
SH 5, REFDES S20
SH 5, REFDES S19
SH 5, REFDES J2
SH 5, REFDES J2
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 10, REFDES S33
SH 5, REFDES S5
SH 8, REFDES P40
SH 8, REFDES P40
SH 9, REFDES S64
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 10, REFDES FB7
SH 9, REFDES P48
SH 8, REFDES S4
SH 8, REFDES S4
SH 12, REFDES S81
SH 8, REFDES S17
SH 12, REFDES K4 / K9 / K16 / K18 / K19
SH 13, REFDES J27
SH 8, REFDES S25
SH 5, REFDES S19
SH 8, REFDES S4
SH 5, REFDES S20
SH 10, REFDES S89
SH 13, REFDES J27
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 14, REFDES J50
SH 5, REFDES J1
SH 5, REFDES J1
SH 5, REFDES S9
SH 5, REFDES J1
SH 12, REFDES K7 / K11 / K12
SH 7, REFDES S68
SH 7, REFDES S67
MAIN CAB HARNESS
S97
S96
S87
P1
1
J12 6 12 7 10 2 3 5 1 9 8 11 4
P22
C D P15 K J F D G H B C M L A E
S13
S99
J11 9 13 1 2 18 16 7 12 11 8 4 10 20 15 19 17 3 6 21 14 5
S108
J15
6 8 5 2 12 9 4 3 7 10 1
P13 8 7 2B 5B 6 9 3 10
Schematic - 389 Model Family Electrical
P94-6101
-
06
A DIVISION OF
A
1
B
C
D
E
F
G
H
I
J
K
L
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
G
H
I
J
K
L
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A0
DWG
SIZE
DIAGNOSTIC CONNECTOR
( J1587 AND J1939 )
J1587
DATA LINK
ORN1250-0
WHT1500-4
PRP0831-3
GRN0831-2
YEL5921-0
YEL2941-8
YEL2412-3
WHT2600-0
GRA7131-4
ORN1910-1
ORN1250-3
ORN1230-2
IGNITION
SWITCH
MIRROR
HEAT
( RED )
ROOF HARNESS
ENGINE RUN
POWER
INTERUPT
WHT1500-4
ORN1910-2
YEL5921-2
ORN1910-3
ORN0800-0
ORN3912-0
YEL2412-3
WHT2600-0
GRA7131-4
ORN1230-2
GRA7260-1 GRA7260-1
RED2611-1
LH
WINDOW
LIFT
LH
MIRROR
SWITCH
RH
MIRROR
MOTOR
RH
WINDOW
LIFT
BLK6912-1
GRA6912-1
WHT6910-1
GRA5922-1
GRA5923-1
BLK5926-1
GRA6912-1
BLK6912-1
GRA5922-1
GRA5923-1
GRA5927-1
GRA5928-1
BUNK
SWITCH
WHT7110-1
ORN0800-0
GRN0831-1
PRP0831-1
VIO0862-2
YEL0810-1
VIO0862-2
GRN0810-3
GRN0810-1
YEL0810-3
PRP0831-0
GRN0831-6
YEL0812-1
GRN0812-1
YEL0811-1
GRN0811-1
BRN2622-51
YEL2941-4
YEL2941-5
YEL2941-3
SLEEPER INTERFACE
ORN1250-2
GRN0810-2
YEL0810-2
ORN6100-3
BLK5925-1
LH
MIRROR
MOTOR
START
INTERUPT
POWER
POINT
( B-PANEL )
GRA3912-1
YEL2941-7
YEL2941-6
SLEEPER
LOAD LAMPS
WHT7110-2
GRA7260-2
ORN7110-6
RED6951-3
RED6951-3
WHT6951-0
WHT6951-0
YEL2941-0
MIRROR POWER
MODULE
GRN0850-1
WHT5920-2
ORN0850-1
WHT5920-0
ORN5920-2
ORN5920-1
GRA5921-1
BLK5926-1
GRA5928-1
GRA5927-1
GRN0850-1
ORN0850-1
GRA5921-1
BLK5925-1
YEL5921-1
YEL6732-4
YEL6712-4
TERMINATING
RESISTOR
J1939 / 15
YEL6732-4
YEL6712-4
ORN1250-5
ORN5920-0
ORN1250-1 ORN1250-4
CUMMINS
ICON
YEL2619-10
YEL2619-10
YEL2619-9
YEL2619-9
YEL2619-0
WHT7110-8
GRA7260-2
ORN1250-6
RED6291-2
RED6291-3
GRN0813-0
YEL0813-0
RED6291-1
ORN6100-1
ORN6100-2
WHT5920-0
WHT5920-2
WHT6910-1
YEL2619-0
WHT7110-2
RED2611-1
BRN2622-51
ORN7110-6
( GREEN ) ( YELLOW ) ( WHITE )
( YELLOW ) ( GREEN ) ( WHITE )
SH 8, REFDES S4
SH 9, REFDES S24
SH 9, REFDES S41
SH 11, REFDES CB2
SH 9, REFDES J20
SH 9, REFDES S42
SH 10, REFDES CB1
SH 11, REFDES CB2
SH 8, REFDES J29
SH 10, REFDES CB1
SH 11, REFDES CB2
SH 13, REFDES S85
SH 13, REFDES J27
SH 13, REFDES J27
SH 14, REFDES J50
SH 14, REFDES J50
SH 14, REFDES J50
SH 14, REFDES J50
SH 12, REFDES K5 / K13 / K17
SH 14, REFDES J50
SH 10, REFDES S74
SH 8, REFDES S21
SH 8, REFDES P42
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 12, REFDES K4 / K9 / K16 / K18 / K19
SH 12, REFDES K4 / K9 / K16 / K18 / K19
SH 8, REFDES S14
SH 8, REFDES S18
SH 12, REFDES K5 / K13 / K17
SH 10, REFDES S77
SH 13, REFDES J27
SH 15, REFDES J102
SH 15, REFDES P100
SH 15, REFDES J114
SH 6, REFDES P15
SH 6, REFDES P15
SH 8, REFDES S21
SH 8, REFDES S30
SH 8, REFDES S30
SH 9, REFDES S45
SH 9, REFDES S41
SH 9, REFDES S49
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES CB2
SH 10, REFDES J80
MAIN CAB HARNESS
S95
1A
2A
1
2
1B
2B
120
J34
P88
B A
J88
A B
S36
P34
1
2
J38 F E J G L M A K B C H D
J30
A B
P4 A C B
J49
1
J48 1
J47
1
J46 1
J45
1 J44 1
S105
S67
S68
S69
S90
S59
S58
P50 C A E F G H B D
S71
S70
P49
10 9 2B 7 5B 3 8 6
P39
2 1 3
P35 1 2
P16
A B C
P2 5 6 4 1 2 3
S51
S23
S3
P92
6 4 7 1 9 3 5 8 2
J28 1
P18 1
J19
1
J13
B A
J14
G F B J A D C
J3 1
P3
1
Schematic - 389 Model Family Electrical
P94-6101
-
07
A DIVISION OF
A
1
B
C
D
E
F
G
H
I
J
K
L
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
G
H
I
J
K
L
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A0
DWG
SIZE
WHT1500-4
WHT1500-6
WHT1500-7
YEL2941-1
RED0711-0
BRN2622-7
ORN3600-2
WHT1500-19
WHT1500-33
ORN3600-4
BRN2622-10
ORN3600-3
WHT1500-18
BRN2622-5
ORN3600-1
WHT1500-35
BRN2622-13
AD / LOAD LIGHTS
5TH WHEEL ( YELLOW )
SPARE
ROCKER
DIFF LOCK ( BLUE )
MIRROR
HEAT
( RED )
SUSPENSION
DUMP VALVE
( WHITE )
HORN
WHT1500-58
YEL5921-2
YEL5921-2
YEL2941-1
WHT1500-57 RED0711-2
WHT1500-11
BRN2622-20
WHT1500-56
LEFT
MIRROR
GROUND
( BLACK )
AD / LOAD
LIGHT
BRN4364-1
BRN4391-1
LH
DOOR LOCK
ACTUATOR
LH
DOOR
HARNESS
LH
DOOR
HARNESS
REMOTE
KEYLESS
ENTRY
RH
DOOR
HARNESS
RH
DOOR LOCK
ACTUATOR
ORN6912-1
ORN6911-1
WHT6910-0
GRA6710-1
BLK6730-1
YEL6732-1
YEL6712-1
YEL2640-0
BRN2622-86
YEL2640-1
BRN2622-85
YEL2640-2
GRA6710-1
BLK6730-1
GRA6711-1
GRA6731-1
ORN6911-1
ORN6912-1
RED6700-1
BRN4364-1
BRN4391-1
YEL2941-2
WHT1500-63
WHT1500-64
BRN2622-74
WHT1500-30
BRN2622-26
WHT1500-63
HAZARD SWITCH
PRP2980-1
GRN2990-2
GRN2990-2
PRP2980-1
BRN2622-74
BRN2622-21
WHT2990-1
WHT5100-1
WHT3110-3
BRN2622-25
WHT1500-10
BRN2622-36
YEL6712-2
YEL6732-2
GRA6711-4
GRA6731-4
RED0711-1
BRN4393-1
WHT1500-1
BRN2622-16
WHT2400-0
FBO INST.
GROUND
WHT0780-0
ORN3600-0
GRA5971-1
GRA5971-1
RED2100-9
RED2100-9
WHT1500-16
RED0712-7
BRN2622-15
WHT6951-0
BRN2622-8
YEL2941-0
YEL2941-0
WHT5920-1
WHT6750-0
RED6750-0
RED6750-0
WHT3110-4
BRN2622-40
BRN2622-60
WHT2990-2
GRA6712-1
GRA6732-1
YEL6732-4
YEL6712-4
YEL6712-3
YEL6732-3
GRA6712-1
GRA6732-1
RED0712-6
WHT1500-9
RED0712-8
YEL6732-5
YEL6712-5
BRN4393-2
BRN4393-3
SUSPENSION
DUMP ALARM
BRN2622-100
ORN3600-5
WHT6910-1
WHT5920-2
WHT5920-0
GRA6711-1
WHT1500-65
GRA6731-1
SH 7, REFDES J14
SH 10, REFDES S6
SH 7, REFDES S23
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 10, REFDES S6
SH 9, REFDES S41
SH 13, REFDES J27
SH 13, REFDES J27
SH 10, REFDES FB1 / FB2 / FB3 / FB4 / FB5/ FB6
SH 10, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 9, REFDES S46
SH 12, REFDES S31
SH 9, REFDES S45
SH 6, REFDES J11
SH 6, REFDES S106
SH 10, REFDES J80
SH 6, REFDES J12
SH 6, REFDES P15
SH 14, REFDES J54
SH 9, REFDES S45
SH 9, REFDES P27
SH 13, REFDES J27
SH 9, REFDES P26
SH 6, REFDES P22
SH 5, REFDES J2
SH 10, REFDES FB7
SH 12, REFDES K4 / K9 / K16 / K18 / K19
SH 10, REFDES S33
SH 6, REFDES P15
SH 7, REFDES P4
SH 9, REFDES P44
SH 7, REFDES S59
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 14, REFDES P12
SH 14, REFDES S91
SH 14, REFDES P94
SH 6, REFDES J11
SH 7, REFDES P50
SH 7, REFDES P50
SH 13, REFDES J27
SH 15, REFDES P93
SH 15, REFDES P93
SH 15, REFDES P93
SH 7, REFDES P39
SH 7, REFDES P16
SH 7, REFDES J38
P92 - 7236 - 000
MAIN CAB HARNESS
S35
J42 1
S104
S103
S66 S72
S18
S14
S30
P36 B A C
P43
D
C
E
H
G
F
A
B
J43
B
A
F
G
H
E
C
D
P40 10 3 2B 7 8 9 5B 6
S16
S15
J16
B A D C
J35
1 2 4 3 5 J18 D C B A
J17 A C B
P38
2 3 1
S40
S39
S28
S25
S17
S4
S21
J29 1
J26
B D C A
J22
B A D C
J23
B D C A
P41
3 1 2
J25 1
P20 1
P42
9 8 7 2B 3 10
P10
B A
Schematic - 389 Model Family Electrical
P94-6101
-
08
A DIVISION OF
A
1
B
C
D
E
F
G
H
I
J
K
L
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
G
H
I
J
K
L
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A0
DWG
SIZE
YEL2412-2
YEL2941-8
BRN2622-8
GRA7131-2
WHT7210-1
YEL2412-3
WHT2600-0
WHT1500-20
YEL2412-4
GRA7310-1
GRA7212-1
GRA7213-3
GRA7211-2
WHT7110-3
GRA7223-1
BLU7222-1
BLU7221-1
ORN7110-5
ORN7110-3
WHT7110-4
GRA7213-2
GRA7213-1
ORN7210-1
WHT7110-5
ORN7110-4
GRA7131-4
FUEL SWITCH
LEVEL
BLOWER CONTROL
BLOWER
RESISTOR
FRESH / RECIRC
ACTUATOR
GRA7212-1
GRA7310-1
WHT1500-0
GRA7131-3
YEL2412-6
MIRROR
MARKER
LIGHTS
( BLUE )
BLOWER
MOTOR
TEMP
ACTUATOR
MODE
ACTUATOR
BLU4581-1
BLU4582-0
BLU7222-1
GRA7211-3
GRA7211-1
ORN7110-11
WHT7110-6
BLU7221-1
WHT1500-56
YEL2941-8
ORN7210-1
HVAC
CONTROL MODULE
MAIN
GROUND
( RIGHT )
AD / LOAD
LIGHT
BRN4513-0
WHT7210-1
YEL7223-1
YEL7223-1
BRN2622-96
GRA7223-1
WHT1500-2
WHT1500-63
BRN2622-90
BRN2622-74
WHT1500-31
HEADLAMP SWITCH
MARKER
LAMP SWITCH
GRA2141-1
WHT1500-61
WHT1500-32
BRN2622-53
WHT1500-59
WHT1500-60
BRN2622-52
YEL2422-3
YEL2422-3
GRN2990-4
GRN2990-4
WHT1500-38
BRN2622-25
RED0711-1
WHT1500-39
CLOCK
POWER
CLOCK
BACK LIGHT
RED0711-1
BRN2622-16
BRN2622-16
WHT0710-0
WHT0730-0
WHT3110-7
BRN2622-50
BRN2622-2
WHT7110-0
BRN2622-8
GRA2422-4
RKE
INPUT
GRA7213-4
RED2100-2
RED2422-5
LEFT FUEL
SENSOR
BLU4581-2 BLU4582-3
BLU4582-2
BLU4581-3
BLU4581-4
BLU4581-5
RED2100-6
GRA2422-10
GRA2422-11
BRN2622-30
RED2100-5
WHT1500-62
GRA2422-9
GRA2141-2
RED2100-5
WHT1500-59
GRA2141-0
GRA2422-4
GRA2141-3
GRN3116-1
BLU4582-1
BLU4582-4
RIGHT FUEL
SENSOR
BRN2622-51
WHT7110-2
ORN7110-6
WHT7110-9
GRA7132-0 GRA7132-1
GRA7132-0
WHT7110-9
FREEZE SWITCH
YEL7221-0
GRA7221-0
YEL7221-0
GRA7221-0
HEATER
ISOLATOR
RIGHT
MIRROR
GND
( BLACK )
RIGHT
MIRROR
MARKER
LAMP
( BLUE )
BRN4581-6
BLU4513-1
FUEL LEVEL
ENGLISH
SH 5, REFDES J2
SH 5, REFDES J2
SH 7, REFDES P92
SH 7, REFDES P92
SH 10, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 7, REFDES S58
SH 7, REFDES P50
SH 5, REFDES S12
SH 5, REFDES S2
SH 12, REFDES K5 / K13 / K17
SH 10, REFDES S57
SH 8, REFDES S21
SH 13, REFDES J31
SH 6, REFDES P13
SH 8, REFDES P42
SH 6, REFDES P13
SH 8, REFDES P42
SH 6, REFDES J11
SH 5, REFDES S1
SH 6, REFDES S106
SH 8, REFDES S39
SH 8, REFDES S28
SH 8, REFDES S25
SH 11, REFDES FB8C
SH 11, REFDES FB9C
SH 14, REFDES S34
SH 14, REFDES P29
SH 10, REFDES S56
SH 8, REFDES S25
SH 10, REFDES S33
SH 12, REFDES K4 / K9 / K16 / K18 / K19
SH 12, REFDES K1 / K2 / K8
SH 12, REFDES K1 / K2 / K8
SH 15, REFDES J103
SH 5, REFDES S1
SH 15, REFDES J102
SH 14, REFDES S102
SH 7, REFDES P49
SH 7, REFDES P49
SH 7, REFDES P49
MAIN CAB HARNESS
J121
1
S65
P118
5 6
J115
B
A
P115
A
B
P117
A B
P85
1
S44
S64
S88
S63 S62
S50
P121
1
J10
A B
P122 8 7 10
P123
5
6
7
P26
1
P27
2 1
S26
P45
1 10 3 7 8 5B 2B 9
P48
2B 10 3 7 8 9 5B 6
S45
S46
P44
5 4 3 2 14 13 15 8 11 12 16 1 9
J24
10 7 8 T3
1
S47
S49
S48
S41
S42
S24
J36
3 1 2 4 P99 A B C H D E G F
J32
1
J33
1
P80
9 8 5B 10 4 1 3 6 2B 7
J37 1 J20
1
Schematic - 389 Model Family Electrical
P94-6101
-
09
A DIVISION OF
A
1
B
C
D
E
F
G
H
I
J
K
L
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A
B
C
D
E
F
G
H
I
J
K
L
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A0
DWG
SIZE
MAIN CAB
POWER
( LEFT )
RED
ORN9920-1
BRN2620-0
RED2100-0
RED2415-0
ORN5921-1
ORN5921-1
RED1260-5
ORN1220-1
DIMMER
ORN7210-1
ORN1220-3
ORN1229-1
RED1210-3
RED1210-5
WHT7110-7
WHT1500-58
RED1210-2
ORN1910-3
ORN0800-0
WHT1500-11
ORN7110-11
WHT2100-3
ORN1229-1
ORN0800-0
ORN7210-1
ORN1910-3
O
R
N
9
9
2
0
-
1
RED2412-1
ORN7110-9
ORN7110-8
ORN7300-2
ORN6912-1
ORN3940-1
ORN3940-1
WHT4210-3
ORN4220-1
RED1260-1 RED1210-14
LVD
V ( OUT )
RED1210-15
O
R
N
1
2
2
1
-5
ORN6911-1
ORN6912-1
ORN4220-1
ORN5910-10
RADIO
POWER
WHT6100-0
RED6100-1
ORN6100-2
BRN2622-21
ORN5910-10
ORN2990-1
LVD
CONNECTOR
RED1210-10
WHT1500-51
ORN1221-11
BRN2622-21
RADIO AMPLIFIER
POWER
WHT6140-0
RED6140-1
FOOTLIGHT /
POWER POINT
CONNECTOR
WHT6950-0
LVD
V ( IN )
BRN2622-18
WHT1500-27
ORN3600-0
ORN3600-0
ORN1220-15
ORN1220-18
RED1210-11
WHT1500-14
WHT1500-12
BRN2620-0
BRN2622-1
RED6951-3
RED6952-1
RED6950-1
BRN2622-14
RED0712-3
RED0712-3
ORN1220-4
RED1210-17
ORN5110-1 ORN5110-3
YEL2619-1
YEL2619-12
RED1210-7
ORN1221-1
RED2100-2
ORN1221-3
ORN7110-1
ORN1220-2
YEL2619-11
YEL2619-10
RED2100-9
YEL2428-8
RED1210-12
YEL2428-8
ORN1221-4
ORN0770-1
XMSN
POWER
WHT1500-3
BRN2622-4
ORN2990-1
ORN5110-0
ORN6911-1
BRN2622-2
ORN6100-2
RED1210-8
RED1210-6
RED1260-2
RED1210-16
ORN1220-16
RED1260-4
RED1210-9
RED2100-4
RED1210-13
RED6952-0
RED1260-6
ORN1221-6
RED2412-1
RED6100-1
RED1260-3
RED6950-1
RED6140-1
RED2415-0
ORN0770-1
RED1210-18
ORN9920-2
ORN9920-2
SH 5, REFDES J1
SH 5, REFDES S43
SH 9, REFDES P117
SH 5, REFDES S11
SH 8, REFDES S4
SH 5, REFDES J1
SH 7, REFDES S51
SH 7, REFDES J14
SH 8, REFDES S17
SH 9, REFDES S49
SH 12, REFDES K5 / K13 / K17
SH 12, REFDES K5 / K13 / K17
SH 12, REFDES K4 / K9 / K16 / K18 / K19
SH 12, REFDES K4 / K9 / K16 / K18 / K19
SH 8, REFDES P38
SH 8, REFDES P38
SH 14, REFDES P120
SH 15, REFDES S98
SH 13, REFDES S100
SH 12, REFDES K5 / K13 / K17
SH 12, REFDES K5 / K13 / K17
SH 6, REFDES S108
SH 6, REFDES S96
SH 6, REFDES J11
SH 8, REFDES S25
SH 15, REFDES S86
SH 8, REFDES S40
SH 13, REFDES J31
SH 9, REFDES S45
SH 12, REFDES K7 / K11 / K12
SH 7, REFDES P4
SH 12, REFDES S76
SH 12, REFDES S78
SH 6, REFDES P15
SH 12, REFDES K5 / K13 / K17
SH 12, REFDES K5 / K13 / K17
SH 9, REFDES S88
SH 12, REFDES K1 / K2 / K8
SH 15, REFDES J41
SH 7, REFDES P92
SH 8, REFDES P40
SH 5, REFDES S1
SH 7, REFDES S105
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES CB2
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 11, REFDES FB1 / FB2 / FB3 / FB4 / FB5 / FB6
SH 5, REFDES J1
MAIN CAB HARNESS
P75
B C A
J75 A C B
J80
C A D E B
S74
J91
B A C
P91
C A B
1A-4 1B-4
2A-4 2B-4
3A-4 3B-4
4A-4 4B-4
5A-4 5B-4
6A-4 6B-4
25
20
20
20
30
20
FB4
7A-4 7B-4
5
1A 1B
2A 2B
3A 3B
4A 4B
5A 5B
6A 6B
10
10
25
20
10
XX
CB1
S33
S22
S77
S89
P32 A F C B D E
S56
S10
P95
B A
J95 A B
S80
J51
1
P51
1
1A 1B
2A 2B
3A 3B
4A 4B
5A 5B
5
15
2
5
10
FB7
20
6A 6B
S57
S55
S54
S53
S52
S6
P31 4 7 8 6
T4
1
Schematic - 389 Model Family Electrical
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Print one or all pages of your manual
$61.99
2008-2015 Peterbilt 389 Electrical Wiring Diagrams Manual
This 2008-2015 Peterbilt 389 Electrical Wiring Diagrams Manual offers detailed schematics and technical diagrams essential for diagnosing, repairing, and maintaining the electrical systems of Peterbilt 389 trucks. Designed for professional mechanics, fleet service technicians, and experienced DIYers, this manual provides a dealer-level overview of every critical wiring system used throughout the model years.
Engines Covered:
- Caterpillar C9
- Caterpillar C13
- Caterpillar C15
- Cummins ISL
- Cummins ISM
- Cummins ISX
Transmissions Covered:
- Eaton AutoShift
- Eaton UltraShift
- Allison WTEC
What’s Inside the Peterbilt Electrical Wiring Manual
This manual provides a complete guide to the 389 model's complex electrical architecture, including detailed schematics for:
Harness Architecture
Block diagrams and layouts of all major harnesses across the cab, chassis, sleeper, hood, and trailer sections.
Location of Major Components
Precise visual maps showing the physical placement of key electrical modules, fuse panels, ECUs, and relay centers.
Main Cab and Sleeper Wiring
Comprehensive schematics for cab circuits, sleeper box wiring, lighting systems, HVAC modules, and power accessories.
Engine and Transmission Systems
Wiring diagrams for Caterpillar and Cummins engines, including charge/start circuits and interface schematics for Eaton and Allison transmissions.
Trailer and Chassis Systems
Detailed wiring layouts for trailer harnesses, chassis power distribution, lighting, and braking systems.
ABS and Safety Systems
Schematics for ABS controllers, wheel sensors, and system integration points across Bendix and Wabco platforms.
Specialized Systems
VORAD collision avoidance wiring, tire pressure monitoring, GPS antenna wiring, sleeper load centers, and multiplex communication buses.
How to Access the Peterbilt Electrical Wiring Manual
The Peterbilt 389 Electrical Wiring Diagrams Manual is available for instant download in PDF format. Compatible with Windows, macOS, iOS, Android, and more, it can be viewed using any standard PDF reader like Adobe Reader.
Why Choose the Peterbilt Electrical Wiring Manual
This manual ensures you have the same level of detailed electrical knowledge that dealership technicians use. Avoid costly mistakes and streamline troubleshooting by working directly from factory-grade schematics tailored specifically to the 389 series.
Get Your Peterbilt Electrical Wiring Manual Today
Download your manual now and take control of diagnostics and repairs on your Peterbilt 389 with precision and confidence.
Printable: Yes
Language: English
Compatibility: Works on all devices (Windows, Mac, iOS, Android)
Requirements: PDF reader (e.g., Adobe Reader)
