335
SK28520.FM
567, RED/GRN
457-1 , BLK
417-1 , PRP
418-3 , WHT
466, WHT/RED
465, GRN
419, LT-GRN
438, BRN/WHT
668, LT-GRN
197-1 , BLU/RED
239-4 , BLK
462, YEL
476, GRN/RED
463, PINK
464, WHT
569, LT-GRN/PINK
455-4 , RED
455-5 , RED
568, LT-GRN/BLU
544, GRN/WHT
461, BLU
584, GRN/WHT
667, WHT
458, BLU
E1, WHT
658, WHT/LT-GRN
239-2 , BLK
239-1 , BLK
239-5 , BLK
239-6 , BLK
577-1 , BLK
577-3 , BLA
577-4 , BLK
29, PRP
83, ORN/WHT
93, LT_GRN/WHT
289, LT-BLU/GRN
457-2 , BLK
457-4 , BLK
239-7 , BLK
615, TAN/GRN
59, VIO
616, BLK/ORN
639, LT-GRN
582, RED/ORN
12, RED
ECM FUSE
(20 AMP)
STARTER
(POS)
STARTER
(NEG)
STARTER
(SOL)
31, RED
AIR
HEATER
CB
(135 AMP)
AIR
HEATER
ELEMENT
LOW
COOLANT
PROBE
J1587
DATA
LINK
MANUAL XMSN
EXHAUST
BRAKE
XMSN
TEMP
AIR HEATER
RELAY FUSE
(10 AMP)
INLET
AIR HEATER
RELAY
ENGINE SPARE E1
457-5 , BLK
418-1 , WHT
418-2 , WHT
417-3 , PRP
417-2 , PRP
242-4 , RED
SHUTDOWN
WATER TEMP
SENSOR
WATER TEMP
LIGHT
380, PRP/YEL
285, GRN/BRN
231, GRN
232, GRN
ENGINE ECM
CONNECTOR
457-8 , BLK
522-1 , WHT/LT-GRN
522-2 , WHT/LT-GRN
242-3 , RED
242-2 , RED
242-1 , RED
A29, PRP
A30, BLK/ORN
A23-1 , ORN/GRN
455-2 , RED
242-5 , RED
SOLENOID
(OPTIONAL)
29-1 , WHT
A29-1 , WHT
A30-1 , WHT
180, WHT
239, WHT
239-10 , WHT
239-11 , WHT
A495, WHT
B239, WHT
243, WHT
570, WHT
RED
HOOD HARNESS
CITY HORN
HSHP PURPLE
HSFO
A/C PRESSURE
SWITCH
INLET AIR
HEATER RELAY
+5 VDC
+ 8 VDC
SENSOR COMMON
J1587 DATA LINK POSITIVE
J1587 DATA LINK NEGATIVE
EXHAUST BRAKE
ENGINE FAN SOLENOID
CLUTCH SWITCH
CHECK ENGINE LAMP
STOP ENGINE LAMP
FAST IDLE LAMP
VEHICLE SPEED INPUT (+)
VEHICLE SPEED INPUT (-)
SET SWITCH
FAST IDLE ENABLE
ENG FAN OVERRIDE
RESUME SWITCH
SERVICE BRAKE #1
COOLANT LEVEL NORMAL
UNSWITCHED +BATTERY POWER
UNSWITCHED +BATTERY POWER
COOLANT LEVEL LOW
PTO ENABLE
CRUISE CONTROL ON/OFF SWITCH
NEUTRAL INDICATION
SERVICE BRAKE #2
(-) BATTERY POWER
ACCELERATOR PEDAL POSITION
(-) BATTERY POWER
HIGH
OR
ROAD
SPEED
SENSOR
MANUAL
XMSN ONLY
(MANUAL
XMSN ONLY)
CLUTCH
SWITCH
ROAD
SPEED
SIGNAL
ALLISON MD/HD
WORLD TRANSMISSION
A/C COMPRESSOR
SOLENOID
661, YEL
662, GRN
660, WHT
J1939
DATA
LINK
(OPTIONAL)
REMOTE PTO
SWITCH EOF
(OPTIONAL)
STARTER
MAG SWITCH
OPENS AT
350 PSIPRESSURE SWITCH
PRESSURE SWITCH
OPENS AT
ATMOSPERIC
PRESSURE
ENGINE/FIREWALL
WIRING
197, BLU/RED
197-2 , BLU/RED
974, PRP
973, GRN
VEHICLE SPEED OUTPUT (+)
VEHICLE SPEED OUTPUT (-)
239-4 , BLK
569, LT-GRN/PINK
567, RED/GRN
465, GRN
584, GRN/WHT
289, LT-BLU/GRN
639, LT-GRN
458, BLU
582, RED/ORN
466, WHT/RED
668, LT-GRN
462, YEL
667, WHT
419, LT-GRN
461, BLU
463, PINK
464, WHT
973, GRN
522-2 , WHT/LT-GRN
522-1 , WHT/LT-GRN
974, PRP
544, GRN/WHT
A23-1 , ORN/GRN
438, BRN/WHT
476, GRN/RED
232, GRN
59, VIO
231, GRN
285, GRN/BRN
380, PRP/Y EL
29, PRP
E1, WHT
93, LT_GRN/WHT
584-1 , G RN/WHT
583, LT_GRN
OR
AUTO XMSN
ALLISON HD/MD
AUTO XMSN
RANGE IND
RELAY
WT157, TAN
12, RED
239-7 , BLK
615, TAN/GRN
31, RED
616, BLK/ORN
A29, PRP
A30, BLK/ORN
658, WHT/LT-GRN
243, WHT
570, WHT
A495, WHT
180, WHT
B239, WHT
A30-1 , WHT
A29-1 , WHT
29-1 , WHT
661, YEL
662, GRN
660, WHT
568, LT-GRN/BLU
SENSOR COMMON
REMOTE PTO "SET"
REMOTE PTO "RESUME"
LOW
SHIELD
J1939 DATA LINK
FOR OPTIONAL
L/N 4860
200A ALT
A457, WHT
A462, WHT
A463, WHT
A463, WHT
A462, WHT
A457, WHT
SEE SHEET 2 FOR
CAB HARNESS
IGNITION KEY SWITCH
OVERCRANK
PROTECTION
MANUAL
XMSN
NEUTRAL
START
SWITCH
MD/HD AUTO
XMSN NEUTRAL
START RELAY
OR
OR
239-1 , BLK
83, ORN/WHT
239-8 , B LK BLK
ENGINE FAN
SOLENOID
WHT
239-9 , B LK
ENGINE BLOCK
GROUND STUD
4A4B4C4D4E4F4G5A5B5C5D5E5F5G6C6D
P38
6E7A7B7C7E7F7G8F8G
125745678910111213141516
P41
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 69 35 36 37 38 39 40 41 68 43 44 45 46 47 48 49 70 51 52 53 54 55 56 3 58 59 60 61 62 63 64 65 66 67 42 34 50
B
J54
A
A
B
P54
P12
1
1
J12
P5A
1
1
J5
T69
1
1
T69.
T70
1
1
T70.
P68
1
1
J68
87A
86
85
30
87
P61
B
AA
J61
B
1
J52
P67
1
1
J67
1
J71
J59
B
A
A
B
P59
P1.
17345628910111213141516171819202122232425262728293031
S10
J46-1
A
B
C
J22-2
B
A
87A
86
85
30
87
C
J22-1
B
A
A
B
P42
B
J42
A
J63
B
A
P63
A
B
A
B
C
P22
J53
A
B
B
A
P53
D
J55
C
B
A
A
B
C
D
P55
A
J46-2
B
B
A
P46
S4
S3
S22
S1
S6
S9
87A
86
85
30
87
J56
A
B
B
A
P56
J57
B
A
A
B
P57
J19
A
B
B
A
P19
ALTERNATOR
-
+
T64-1
1
1
T64
T60-1
1
1
T60
T65-1
1
1
T65
P66
11
J66
J60
AB
P60
BA
S15
P18
A
BB
J18
A
T8-1
1
T7-1
1
1
T9
1
T8
T9-1
1
1
T7
1
T6
T6-1
1
87A
86
85
30
87
P16
A
B
B
J16
A
S7
J51
A
B
B
A
P51
P43C
1
J43C
1
P44-1
1
1
J44
1
J62
P62
1
1
J45
P45
1
P43A
1
1
J43A
1
J43B
P43B
1
STARTER
-
+
S
SET
RESUME
(-)
(+)
BATTERY
J35
1
1
P35
P71
A
B
C
1
J34 P34.
1
J72
C
B
A
P72
A
B
C
P14-3
2
1
P14-1
2
1
87A
86
85
30
87
1
P9
4
6
2
5
3
P15
A
BB
J15
A
P14-2
2
1
1
J14
2
CAT 3126E SK28520 B 01
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