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FUSE BLOCK
POWER DISTRIBUTION
Fig 1: Power Distribution Circuit, Diesel (1 of 4)
59806
BLK 12GA
D
GRY2
A B C
E
TEST
ACCY
LOCK
OFF RUN
BULB
START START
BULB
RUNOFF
LOCK
ACCY
TESTTEST
ACCY
LOCK
OFF RUN
BULB
STARTSTART
BULB
RUNOFF
LOCK
ACCY
TEST
C103AA
C100
A
A C256CA C256E C255
B C255B C256
C231
BLK
RED
PPL
PPL
RED
RED
BLK
BLK/RED
GENERATOR STARTER
MOTOR
SOLENOID
GLOW PLUG
CONTROLLER
IGNITION SWITCH
4WAL MODULE
CONVEN-IENCE
CENTER
FUSE
BLOCK
DOME
LAMP
RADIO CONVENIENCE
CENTER
BRAKE SWITCH
DAYTIME RUNNING
LAMPS RELAY
POWERTRAIN CONTROL
MODULE
(PCM)
AUDIO ALARM
MODULE CONVENIENCE
CENTER
REAR WHEEL
ANTILOCK BRAKE
MODULE
HEADLIGHT SWITCH
ASSEMBLY
HAZARD FLASHER
AUXILLARY COOLING
FAN RELAY
FUEL PUMP/OIL
PRESSURE
SWITCH
FUEL PUMP
RELAY
CIGARETTE
LIGHTER
FUEL
PUMP
RELAY LOW
BLOWER
RELAY MEDIUM
BLOWER
RELAY
REAR WINDOW
RELEASE
RELAY
HIGH BLOWER
RELAY
REAR WINDOW
RELEASE
SWITCH
HORN RELAY CONVENIENCE
CENTER
RR WPR, FRT WPR,
RDO FUSES AND
AND
PWR WDO
CIRCUIT
BREAKER
HTR-A/C, RR HVAC,
4WD & BRAKE
FUSES
PWR ACC
CIRCUIT BREAKER
TRANS
FUSE
ECM-IGN, TURN B/U
& GAUGES
FUSES
GLOW
PLUGS
W/ AUTOMATIC
TRANSMISSION
W/ AUTO
TRANS
SUBURBAN EXC. SUBURBAN & UTILITY & UTILITY
SUBURBAN & UTILITY ONLY
G206
RIGHT
BATTERY
LEFT
BATTERY
FUSIBLE
LINK
CLUTCH
PEDAL
SWITCH
STOP
FUSE
15A
DRL
FUSE
15A
T/G REL
FUSE
25A
CTSY
FUSE
20A
PARK
LPS
FUSE
20A
CRANK
FUSE
5A
(AT DATA
LINK
CONNECTOR)
1Search™
1994 Chevrolet Pickup 6.5L Eng K2500
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Fig 2: Power Distribution Circuit, Diesel (2 of 4)
59807
O
R
G G
R
O
BA
T
H
WW
H
TT
H
W
C247C241 C276AC259
BRN
FUSE BLOCK
CONVENIENCE
CENTER CONVENIENCE
CENTER
LEFT
FRONT
POWER
WINDOW SWITCH
LEFT
REAR
POWER
WINDOW
SWITCH
RIGHT
FRONT
POWER
WINDOW SWITCH
RIGHT
REAR
POWER
WINDOW
SWITCH
RIGHT
POWER
DOOR LOCK
SWITCH
LEFT
POWER
DOOR LOCK
SWITCH
POWER
DOOR LOCK
RELAY
RADIO REAR
WIPER/
WASHER SWITCH
WIPER
MOTOR
MODULE
REAR
WINDOW
DEFOGGER
SWITCH
POWER
OUTSIDE
MIRROR
SWITCH
WIPER
WASHER
SWITCH
LEFT
POWER
SEAT
FUSIBLE LINK
IGNITION SWITCH
SUBURBAN &
UTILTY ONLY
(SUBURBAN &
CREW CAB
ONLY)
POWER
ACC
CIRCUIT
BREAKER
30A
PWR
WDO
CIRCUIT
BREAKER
30A
FRT
WPR
FUSE
25A
RR
WPR
FUSE
25A
RDO
FUSE
10A
IN-LINE
FUSE
3A
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Fig 3: Power Distribution Circuit, Diesel (3 of 4)
59808
D
N
R
B
N
R
B50
D
E
R
C
PNK/BLK(OR PNK)
PNK DK GRN
ORG
ORG ORG
BRN
BRN
FUSE BLOCK
CONVENIENCE
CENTER CONVENIENCE
CENTER
LOW
BLOWER
RELAY
A/C CLUTCH
RELAY
MED
BLOWER
RELAY
HIGH
BLOWER
RELAY
A/C
CONTROL
MODULE
HEATER
BLOWER
SWITCH
VEHICLE
SPEED
SENSOR BUFFER
MODULE
TRANSFER
CASE
SWITCH
ANTILOCK
BRAKE
MODULE
GLOW PLUG
CONTROL MODULE
MED
BLOWER
RELAY
AUXILLIARY
HEATER-A/C
FRONT CONTROL
HIGH
BLOWER
RELAY
MODE
DOOR
MOTOR
AUXILLIARY
HEATER-A/C
LOGIC MODULE
TEMP
DOOR
MOTOR
AUXILLIARY
HEATER-A/C
REAR CONTROL
LOW
BLOWER
RELAY
RIGHT GLOW PLUGS LEFT GLOW PLUGS
FUSE BLOCK
POWERTRAIN CONTROL
MODULE
HEAVY DUTY
ELECTRONIC
TRANSMISSION
4-SPEED AUTOMATIC
W/OVERDRIVE
INSTRUMENT CLUSTER
PRINTED
CIURCUIT
ELECTRONIC TRANSMISSION
4-SPEED AUTOMATIC
W/OVERDRIVE
IGNITION
SWITCH
PANEL DIMMER
SWITCH ASSEMBLY
(INTERIOR
LIGHTS
SYSTEM)
IGNITION
SWITCH
INTERIOR LIGHTS
SYSTEM
W/ AIR
CONDITIONING
BRAKE
FUSE
15A
RR HVAC
FUSE
25A
4WD
FUSE
25A
HTR-A/C
FUSE
25A
PNL LPS
FUSE
5A
TRANS
FUSE
10A
GLOW PLUG
FUSE
5A
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Fig 4: Power Distribution Circuit, Diesel (4 of 4)
59809
E
G
R
O
U
L
B
U
L
B
C290C278
PNK/BLK
FUSE BLOCK
EGR
VENT
SOLENOID
TURN
SIGNAL
FLASHER
EGR
WIDTH
MODULATED
SOLENOID
FUEL
INJECTION
PUMP
PULSE
WIDTH
MODULATED
BOOST
SOLENOID
POWERTRAIN
CONTROL
MODULE
TCC/
STOPLAMP
SWITCH
BACKUP
LAMP
SWITCH
CONVENIENCE
CENTER
AUDIO
ALARM
MODULE
CONVENIENCE
CENTER
FUEL
HEATER
REAR
DEFOGGER
SWITCH
WATER-IN-FUEL
SENSOR
CRUISE
CONTROL
ACTIVATOR
SWITCH
CRUISE
CONTROL
MODULE
DAYTIME
RUNNING
LAMPS
RELAY
AUXILIARY
COOLING
FAN
RELAY
DAYTIME
RUNNING
LAMPS
MODULE
(PICKUP ONLY)
GLOW PLUG
CONTROL
MODULE
INSTRUMENT
CLUSTER
PRINTED
CIRCUIT
IGNITION
SWITCH
(L49 & L56
ENGINES
ONLY) (L49 & L56
ENGINES
ONLY) (L56 & L65
ONLY)
ECM-IGN
FUSE
10A
TURN B/U
FUSE
15A
GAUGES
FUSE
20A
SOL
FUSE
5A
F/SOL
FUSE
20A
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Fig 5: Power Distribution Circuit, Gasoline (1 of 4)
59784
D
GRY2
A B C
E
TEST
ACCY
LOCK
OFF RUN
BULB
START START
BULB
RUNOFF
LOCK
ACCY
TESTTEST
ACCY
LOCK
OFF RUN
BULB
STARTSTART
BULB
RUNOFF
LOCK
ACCY
TEST
C103AA
A C256CA C256E C255
B C255B C256
C231
PPL
PPL
RED
RED
BLK
BLK/RED
GENERATOR STARTER
MOTOR
SOLENOID
IGNITION SWITCH
4WAL MODULE
CONVEN-IENCE
CENTER
IGNITION
COIL
FUSE
BLOCK
CONVENIENCE
CENTER
RADIO DOME
LAMP
FUEL PUMP/OIL
PRESSURE
SWITCH
AUXILLARY COOLING
FAN RELAY
BRAKE SWITCH
HEADLIGHT SWITCH
ASSEMBLY
POWERTRAIN CONTROL
MODULE
(PCM)
REAR WHEEL
ANTILOCK BRAKE
MODULE
DAYTIME RUNNING
LAMPS RELAY
FUEL PUMP
RELAY
AUDIO ALARM
MODULE CONVENIENCE
CENTER
HAZARD FLASHER
CIGARETTE LIGHTER
POWERTRAIN CONTROL
MODULE
(PCM)
LOW
BLOWER
RELAY MEDIUM
BLOWER
RELAY
REAR
WINDOW
RELEASE
SWITCH
REAR
WINDOW
RELEASE
RELAY
HIGH
BLOWER
RELAY
HORN RELAY
CONVENIENCE
CENTER
HTR-A/C, RR HVAC,
4WD & BRAKE
FUSES
RR WPR, FRT WPR,
RDO FUSES AND
AND
PWR WDO
CIRCUIT
BREAKER
PWR ACC
CIRCUIT BREAKER
TRANS &
INJ
FUSES
ECM-IGN, TURN B/U
& GAUGES
FUSES
W/ AUTOMATIC
TRANSMISSION
W/ AUTO
TRANS
VIN H&K
MANUAL
TRANS
ONLY
SUBURBAN EXC. SUBURBAN & UTILITY & UTILITY
SUBURBAN & UTILITY ONLY
L03 & L05
ENGINES W/
MANUAL
TRANSMISSIONS
ONLY
G206
BATTERY
CLUTCH
PEDAL
SWITCH
STOP
FUSE
15A
PARK
LPS
FUSE
20A
CRANK
FUSE
5A
DRL
FUSE
15A
CTSY
FUSE
20A
T/G REL
FUSE
25A
(AT DATA
LINK
CONNECTOR)
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Fig 6: Power Distribution Circuit, Gasoline (2 of 4)
59785
O
R
G G
R
O
BA
T
H
WW
H
TT
H
W
C247C241 C276AC259
BRN
FUSE BLOCK
CONVENIENCE
CENTER CONVENIENCE
CENTER
RIGHT
REAR
POWER
WINDOW
SWITCH
LEFT
REAR
POWER
WINDOW
SWITCH
LEFT
FRONT
POWER
WINDOW SWITCH
RIGHT
FRONT
POWER
WINDOW SWITCH
LEFT
POWER
DOOR LOCK
SWITCH
RIGHT
POWER
DOOR LOCK
SWITCH
POWER
DOOR LOCK
RELAY
WIPER
MOTOR
MODULE
WIPER
WASHER
SWITCH
LEFT
POWER
SEAT
POWER
OUTSIDE
MIRROR
SWITCH
REAR
WIPER/
WASHER SWITCH
REAR
WINDOW
DEFOGGER
SWITCH
RADIO
FUSIBLE LINK
IGNITION SWITCH
SUBURBAN &
UTILTY ONLY
(SUBURBAN &
CREW CAB
ONLY)
POWER
ACC
CIRCUIT
BREAKER
30A
PWR
WDO
CIRCUIT
BREAKER
30A
RR
WPR
FUSE
25A
FRT
WPR
FUSE
25A
RDO
FUSE
10A
IN-LINE
FUSE
3A
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Fig 7: Power Distribution Circuit, Gasoline (3 of 4)
59788
D
N
R
B
N
R
B50
D
E
R
C
PNK DK GRN
PNK/BLK (OR PNK)
ORG
ORG ORG
BRN
BRN
FUSE BLOCK
CONVENIENCE
CENTER CONVENIENCE
CENTER
HIGH
BLOWER
RELAY
A/C CLUTCH
RELAY
MED
BLOWER
RELAY
LOW
BLOWER
RELAY
A/C
CONTROL
MODULE
HEATER
BLOWER
SWITCH
ANTILOCK
BRAKE
MODULE
HEATED
OXYGEN
SENSOR
TRANSFER
CASE
SWITCH
VEHICLE
SPEED
SENSOR BUFFER
MODULE
AUXILLIARY
BATTERY
RELAY
AUXILLIARY
HEATER-A/C
LOGIC
MODULE
AUXILLIARY
HEATER-A/C
REAR
CONTROL
MED
BLOWER
RELAY
MODE
DOOR
MOTOR
AUXILLIARY
HEATER-A/C
FRONT
CONTROL
LOW
BLOWER
RELAY
TEMP
DOOR
MOTOR
HIGH
BLOWER
RELAY
FUSE BLOCK
HEAVY DUTY
ELECTRONIC
TRANSMISSION
4-SPEED AUTOMATIC
W/OVERDRIVE
THROTTLE
BODY FUEL
INJECTOR A
THROTTLE
BODY FUEL
INJECTOR B
ELECTRONIC TRANSMISSION
4-SPEED AUTOMATIC
W/OVERDRIVE
IGNITION
SWITCH
PANEL DIMMER
SWITCH ASSEMBLY
(INTERIOR
LIGHTS
SYSTEM)
IGNITION
SWITCH
INTERIOR LIGHTS
SYSTEM
W/ AIR
CONDITIONING
VIN Z ONLY
EXCEPT
VIN Z
BRAKE
FUSE
15A
RR HVAC
FUSE
25A
4WD
FUSE
25A
HTR-A/C
FUSE
25A
INJ
FUSE
10A
PNL LPS
FUSE
5A
TRANS
FUSE
10A
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Fig 8: Power Distribution Circuit, Gasoline (4 of 4)
59791
D
G
R
O
U
L
B
U
L
B
C290C278
PNK/BLK
PNK/BLK
PNK/BLK
FUSE BLOCK
TCC/
STOPLAMP
SWITCH
BACKUP
LAMP
SWITCH
TURN
SIGNAL
FLASHER
CONVENIENCE
CENTER
TROTTLE
ACTUATOR
SOLENOID
POWERTRAIN
CONTROL
MODULE
HEATED
OXYGEN
SENSOR
EVAPORATIVE
EMISSION
CANISTER
PURGE
SOLENOID
AIR SWITCHING
VALVE
SOLENOID
LINEAR
EGR
REGULATOR
VALVE
SOLENOID
ESC
MODULE
AIR DIVERT
SOLENOID
POWERTRAIN
CONTROL
MODULE
EXHAUST GAS
RECIRCULATION
SOLENOID
VALVE
CONVENIENCE
CENTER
CRUISE
CONTROL
ACTIVATOR
SWITCH
CRUISE
CONTROL
MODULE
AUDIO
ALARM
MODULE
CONVENIENCE
CENTER
OVERSPEED
ALARM
MODULE
REAR
DEFOGGER
SWITCH
AUXILLIARY
COOLING
FAN
RELAY
DAYTIME
RUNNING
LAMPS
RELAY
DAYTIME
RUNNING
LAMPS
MODULE
INSTRUMENT
CLUSTER
PRINTED
CIRCUIT
HOT FUEL
HANDLING
MODULE
IGNITION
SWITCH
VINS H & K
W/ AUTOMATIC
TRANSMISSIONS &
VINS N & Z
VINS H & K
W/ MANUAL
TRANSMISSIONS
(VIN N
ONLY)
(VIN N
ONLY) (VINS H & K)
(W/ NRQ) (W/ NRQ)
(VIN H &K
LIGHT DUTY
ONLY) (LO3 & LO5
ENGINES,
LIGHT DUTY &
YUKON W/ LO5
ENGINE)
VINS H & K
ONLY
VIN N
ONLY
(SUBURBAN
& UTILITY
ONLY)
(PICKUP ONLY)
TURN B/U
FUSE
15A
ECM-IGN
FUSE
10A
GAUGES
FUSE
20A
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STARTING/CHARGING
6.5L
Fig 9: 6.5L (VIN F), Charging Circuit
60066
(ROTOR)
FIELD
BRIDGE
RECTIFIER SOLID-STATE
REGULATOR
BAT
20A
INDICATORS
TEST OR STARTHOT IN RUN, BULB
LFSP
HIGH VOLTAGE; GEN FAULT)
(CLOSES WITH LOW OR
TURN ON INPUT
SW BAT
INPUTVOLT SENSE
STATOR
A
F
C203
C203
L C109
RED/BLKBLK
BLK
RED/BLK
BRNBLK
BLK
BLK
BLK
RED/
BLKBLKBLK
PNK/
BLK
PNK/
BLK
FUSE
BLOCK GAUGES
FUSE FUSIBLE LINK
BATTERY JUNCTION
BLOCK
INSTRUMENT
CLUSTER
STARTER
SOLENOID CHARGE
INDICATOR
LEFT BATTERY
RIGHT BATTERY
(12 GA. RUST)
W/DIESEL
ENGINE
(RED) W/GASOLINE
ENGINE W/DIESEL
ENGINE
(NOT
USED) (NOT
USED)
G110 G119 G101
GENERATOR
(RIGHT REAR OF
ENGINE COMPARTMENT,
AT COWL)
(LOWER
RIGHT REAR
OF ENGINE,
ON STARTER
MOTOR)
(TOP LEFT FRONT OF
OF ENGINE)
(TOP LEFT
FRONT
OF
ENGINE)
(RIGHT
FRONT
OF
ENGINE)
(RIGHT
INNER
FENDER,
NEAR
BATTERY)
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Fig 10: 6.5L (VIN F), Starting Circuit
M
60060
5A
30A15A
START
BULB
RUNOFF
LOCK
ACCY
TEST
SOLENOID CONTACTS B
M
S
WINDING
PULL-INWINDING
HOLD-IN
C255
C255C256
B
A
A
DB
BLK
BLK PPL
BLK
PPL
PPL
YEL
REDRED
RED RED
REDRED
RED
BLK
BLK
BLK
PPL
PPL
BLK BLK
PPL
IGNITION
SWITCH
FUSE
BLOCK PWR ACC
CIRCUIT
BREAKER
STOP-
HZ
FUSE FUSIBLE
LINK
BATTERY
JUNCTION
BLOCK
FUSIBLE
LINK
FUSE
BLOCK CRANK
FUSE
LEFT
BATTERY
RIGHT
BATTERY
W/AUTO TRANS W/MAN TRANS
(NORMALLY,OPEN
CLOSES WHEN
CLUTCH PEDAL IS
DEPRESSED)
(16 GA.
BLK)
(12 GA.
RUST)
(WITH DIESEL
ENGINE)
G119 G101 G110
CLUTCH START
SWITCH
STARTER
SOLENOID
STARTER
MOTOR
(BEHIND LEFT
SIDE OF
INSTRUMENT
PANEL)
(AT TOP OF
CLUTCH PEDAL)
(RIGHT REAR OF
ENGINE
COMPARTMENT, AT COWL)
(LOWER LEFT
SIDE OF
INSTRUMENT
PANEL)
(LOWER
RIGHT SIDE
OF ENGINE,
ON STARTER
MOTOR) (RIGHT FRONT OF
ENGINE)
(TOP LEFT
FRONT OF
ENGINE)
(RIGHT INNER FENDER,NEAR
BATTERY)
(LOWER RIGHT SIDE
OF ENGINE)
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Fig 11: 6.5L (VIN P), Charging Circuit
60066
(ROTOR)
FIELD
BRIDGE
RECTIFIER SOLID-STATE
REGULATOR
BAT
20A
INDICATORS
TEST OR STARTHOT IN RUN, BULB
LFSP
HIGH VOLTAGE; GEN FAULT)
(CLOSES WITH LOW OR
TURN ON INPUT
SW BAT
INPUTVOLT SENSE
STATOR
A
F
C203
C203
L C109
RED/BLKBLK
BLK
RED/BLK
BRNBLK
BLK
BLK
BLK
RED/
BLKBLKBLK
PNK/
BLK
PNK/
BLK
FUSE
BLOCK GAUGES
FUSE FUSIBLE LINK
BATTERY JUNCTION
BLOCK
INSTRUMENT
CLUSTER
STARTER
SOLENOID CHARGE
INDICATOR
LEFT BATTERY
RIGHT BATTERY
(12 GA. RUST)
W/DIESEL
ENGINE
(RED) W/GASOLINE
ENGINE W/DIESEL
ENGINE
(NOT
USED) (NOT
USED)
G110 G119 G101
GENERATOR
(RIGHT REAR OF
ENGINE COMPARTMENT,
AT COWL)
(LOWER
RIGHT REAR
OF ENGINE,
ON STARTER
MOTOR)
(TOP LEFT FRONT OF
OF ENGINE)
(TOP LEFT
FRONT
OF
ENGINE)
(RIGHT
FRONT
OF
ENGINE)
(RIGHT
INNER
FENDER,
NEAR
BATTERY)
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Fig 12: 6.5L (VIN P), Starting Circuit
M
60060
5A
30A15A
START
BULB
RUNOFF
LOCK
ACCY
TEST
SOLENOID CONTACTS B
M
S
WINDING
PULL-INWINDING
HOLD-IN
C255
C255C256
B
A
A
DB
BLK
BLK PPL
BLK
PPL
PPL
YEL
REDRED
RED RED
REDRED
RED
BLK
BLK
BLK
PPL
PPL
BLK BLK
PPL
IGNITION
SWITCH
FUSE
BLOCK PWR ACC
CIRCUIT
BREAKER
STOP-
HZ
FUSE FUSIBLE
LINK
BATTERY
JUNCTION
BLOCK
FUSIBLE
LINK
FUSE
BLOCK CRANK
FUSE
LEFT
BATTERY
RIGHT
BATTERY
W/AUTO TRANS W/MAN TRANS
(NORMALLY,OPEN
CLOSES WHEN
CLUTCH PEDAL IS
DEPRESSED)
(16 GA.
BLK)
(12 GA.
RUST)
(WITH DIESEL
ENGINE)
G119 G101 G110
CLUTCH START
SWITCH
STARTER
SOLENOID
STARTER
MOTOR
(BEHIND LEFT
SIDE OF
INSTRUMENT
PANEL)
(AT TOP OF
CLUTCH PEDAL)
(RIGHT REAR OF
ENGINE
COMPARTMENT, AT COWL)
(LOWER LEFT
SIDE OF
INSTRUMENT
PANEL)
(LOWER
RIGHT SIDE
OF ENGINE,
ON STARTER
MOTOR) (RIGHT FRONT OF
ENGINE)
(TOP LEFT
FRONT OF
ENGINE)
(RIGHT INNER FENDER,NEAR
BATTERY)
(LOWER RIGHT SIDE
OF ENGINE)
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Fig 13: 6.5L (VIN S), Charging Circuit
60066
(ROTOR)
FIELD
BRIDGE
RECTIFIER SOLID-STATE
REGULATOR
BAT
20A
INDICATORS
TEST OR STARTHOT IN RUN, BULB
LFSP
HIGH VOLTAGE; GEN FAULT)
(CLOSES WITH LOW OR
TURN ON INPUT
SW BAT
INPUTVOLT SENSE
STATOR
A
F
C203
C203
L C109
RED/BLKBLK
BLK
RED/BLK
BRNBLK
BLK
BLK
BLK
RED/
BLKBLKBLK
PNK/
BLK
PNK/
BLK
FUSE
BLOCK GAUGES
FUSE FUSIBLE LINK
BATTERY JUNCTION
BLOCK
INSTRUMENT
CLUSTER
STARTER
SOLENOID CHARGE
INDICATOR
LEFT BATTERY
RIGHT BATTERY
(12 GA. RUST)
W/DIESEL
ENGINE
(RED) W/GASOLINE
ENGINE W/DIESEL
ENGINE
(NOT
USED) (NOT
USED)
G110 G119 G101
GENERATOR
(RIGHT REAR OF
ENGINE COMPARTMENT,
AT COWL)
(LOWER
RIGHT REAR
OF ENGINE,
ON STARTER
MOTOR)
(TOP LEFT FRONT OF
OF ENGINE)
(TOP LEFT
FRONT
OF
ENGINE)
(RIGHT
FRONT
OF
ENGINE)
(RIGHT
INNER
FENDER,
NEAR
BATTERY)
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Fig 14: 6.5L (VIN S), Starting Circuit
M
60060
5A
30A15A
START
BULB
RUNOFF
LOCK
ACCY
TEST
SOLENOID CONTACTS B
M
S
WINDING
PULL-INWINDING
HOLD-IN
C255
C255C256
B
A
A
DB
BLK
BLK PPL
BLK
PPL
PPL
YEL
REDRED
RED RED
REDRED
RED
BLK
BLK
BLK
PPL
PPL
BLK BLK
PPL
IGNITION
SWITCH
FUSE
BLOCK PWR ACC
CIRCUIT
BREAKER
STOP-
HZ
FUSE FUSIBLE
LINK
BATTERY
JUNCTION
BLOCK
FUSIBLE
LINK
FUSE
BLOCK CRANK
FUSE
LEFT
BATTERY
RIGHT
BATTERY
W/AUTO TRANS W/MAN TRANS
(NORMALLY,OPEN
CLOSES WHEN
CLUTCH PEDAL IS
DEPRESSED)
(16 GA.
BLK)
(12 GA.
RUST)
(WITH DIESEL
ENGINE)
G119 G101 G110
CLUTCH START
SWITCH
STARTER
SOLENOID
STARTER
MOTOR
(BEHIND LEFT
SIDE OF
INSTRUMENT
PANEL)
(AT TOP OF
CLUTCH PEDAL)
(RIGHT REAR OF
ENGINE
COMPARTMENT, AT COWL)
(LOWER LEFT
SIDE OF
INSTRUMENT
PANEL)
(LOWER
RIGHT SIDE
OF ENGINE,
ON STARTER
MOTOR) (RIGHT FRONT OF
ENGINE)
(TOP LEFT
FRONT OF
ENGINE)
(RIGHT INNER FENDER,NEAR
BATTERY)
(LOWER RIGHT SIDE
OF ENGINE)
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GROUND DISTRIBUTION
Fig 15: Ground Distribution Circuit (1 of 3)
AA
59260
UNCOATED
DK BLU/WHT
BLK PNK/BLK
ORG
BLK
DK BLU/WHT
BLK
(OR BLK)
RIGHT
SNOW-
PLOW
LAMP,
TURN
SIGNAL
RELAY
AUXILLIARY
BATTERY BATTERY
FRONT
RIGHT
PARK
AND
TURN
LAMP
AUXILIARY
COOLING
FAN
MOTOR
A/C
HIGH
PRESSURE
SWITCH
RIGHT
HIGH/
LOW
BEAM
HEADLAMP
RIGHT
PARK
AND
TURN
LAMP
LEFT
BATTERY RIGHT
HIGH
BEAM
HEADLAMP
RIGHT
LOW
BEAM
HEADLAMP
RIGHT
HORN RIGHT
FOG
LAMP
LEFT
SNOW-
PLOW
LAMP,
TURN
SIGNAL
RELAY
FRONT
LEFT
PARK
AND
TURN
LAMP
FRONT
LEFT
PARK
AND
TURN
LAMP
LEFT
HIGH/
LOW
BEAM
HEADLAMP
WASHER
PUMP
MOTOR
LEFT
LOW
BEAM
HEADLAMP
LEFT
HIGH
BEAM
HEADLAMP
LEFT
HORN LEFT
FOG
LAMP
OVERHEAD ROOF
CONSOLE LAMPS FRONT DOME &
READING LAMPS
REAR DOME &
READING LAMPS
REAR
DEFOGGER
GRID
HEADLIGHTS
SYSTEM
TO G206
WITH V22
APPEARANCE PACKAGE (RIGHT)
(GAS ENGINES)
(DIESEL ENGINES)
(4.3L, 5.0L, 5.7L ENGINES)
(7.4L ENGINE)
(DIESEL ENGINES)
(GASOLINE ENGINES) (DIESEL ENGINES)
W/ SNOWPLOW
PREPARATION
PACKAGE
W/ L19
GASOLINE
ENGINE
AND A/C WITH V22
APPEARANCE PACKAGE
ENGINE
GROUND
BODY
GROUND
W/ SNOWPLOW
PREPARATION
PACKAGE
W/O V22
APPEARANCE
PACKAGE
W/ V22
APPEARANCE
PACKAGE
W/ DAYTIME
RUNNING
LIGHTS
W/O DAYTIME
RUNNING
LIGHTS
CREW CAB, SUBURBAN &
UTILITY VEHICLES
W/ OVERHEAD CONSOLE
CREW CAB, SUBURBAN &
UTILITY VEHICLES
W/ AUXILLIARY LIGHTING
(PICKUP)
(EXTENDED & CREW CAB) (PICKUP)
G119
G119
G119
G106 G101 G110
G101
G# N/A
G106
G905 G305
G# N/A G909 G# N/A
(RIGHT FRONT OF ENGINE)
(FRONT OF RIGHT CYLINDER HEAD)
(RIGHT FRONT TOP OF ENGINE)
(RIGHT INNER FENDER, NEAR BATTERY) (ON SHEET METAL
ABOVE LEFT
HEADLAMP)
(LEFT TOP FRONT
OF ENGINE)
(RIGHT INNER
FENDER, NEAR
BATTERY)
(NO LOCATION AVAILABLE)
(ON SHEET
METAL, ABOVE
LEFT HEADLAMP)
(AT RIGHT "C" PILLAR) (RIGHT "B" PILLAR) (NEAR FRONT
DOME LAMPS)
(NEAR REAR
DOME LAMPS)
(NEAR FRONT
DOME LAMP)
DAYTIME
RUNNING
LAMPS
RELAY
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Fig 16: Ground Distribution Circuit (2 of 3)
A
59261
E
C
TURNFLASHER
450
150 8150 8150 8150 88150
GROUND BUS
150 150150150150 9
GRA
MODULEALARMAUDIO
GRA
150
9150
C290C
BLK/WHT
CENTER
HIGH
MOUNT
STOPLAMP
(CHMSL)
LOW
COOLANT
WARNING
LAMP
MODULE
SAFETY
BELT
RETRACTOR
SWITCH
REAR
WASHER
PUMP
MOTOR
LEFT
DOOR
JAMB
SWITCH
RIGHT
DOOR
JAMB
SWITCH
DAYTIME
RUNNING
LAMPS
RELAY
DAYTIME
RUNNING
LAMPS
MODULE
PANEL
DIMMER
SWITCH
CIGARETTE
LIGHTER
ASSEMBLY
BLOWER
MOTOR A/C
CONTROLLER
INSTRUMENT
CLUSTER RADIO
I/P
COMP-
ARTMENT
BOX
LAMP
FOUR-
WHEEL
DRIVE
INDICATOR
POWER
LOCKS
POWER
WINDOWS
REAR
WIPER/
WASHER
SWITCH
REAR
AUXILLIARY
HEATER
CONTROL
REAR
DEFOGGER
SWITCH
ROOF
MARKER
LAMPS
ASH
TRAY
LAMPS
AUXILIARY
BATTERY
RELAY
POWER
SEAT
CONVENIENCE
CENTER
CENTER
HIGH
MOUNT
STOPLAMP
RELAY
WIPER
MOTOR AND
MODULE
GLOW
PLUG
CONTROL
MODULE
A/C
COMP-
RESSOR
CLUTCH
WATER-
IN-
FUEL
SENSOR
A/C HIGH
PRESSURE
CUTOUT
SWITCH # 2
HEATED
OXYGEN
SENSOR
CRUISE
CONTROL
MODULE
COOLANT
LEVEL
SENSOR
4WAL
PUMP
MOTOR
RWAL
MODULE
4WAL
MODULE
FUEL
HEATER DIODE
EGR
ELECTRONIC
VACUUM
REGULATOR
SOLENOID
VALVE
FUEL
PUMP
AND
SENDER
VEHICLE
SPEED
SENSOR
BUFFER
PARK/
NEUTRAL
POSITION
SWITCH
CONVENIENCE
CENTER FUEL
PUMP
RELAY
POWERTRAIN
CONTROL
MODULE (PCM)
DATA
LINK
CONNECTOR
FROM
LEFT HIGH
(OR HIGH/LOW)
BEAM
HEADLAMP
(ASSEMBLY)
ALL
EXCEPT
DRL
DIESEL
ENGINE
ONLY
PICKUP
ONLY
W/ DIESEL ENGINES ONLY SUBURBAN &
UTILITY ONLY
(FRONT)
W/ LB4,
L03 & L05
ENGINES PICKUP
ONLY
LB4, L03, L05, L19 GASOLINE ENGINES W/ AUTOMATIC TRANSMISSION
LB4, L19 GASOLINE ENGINES W/ MANUAL TRANSMISSION
(L05 ONLY)
W/ HD
AUTOMATIC
TRANSMISSION
SUBURBAN &
UTILITY
ONLY
(LB4, L19 ENGINES) (L03, L05 ENGINES)
G206
G117
G110 G125
G110
(AT DATA
LINK
CONNECTOR)
(REAR OF
RIGHT CYLINDER HEAD)
(LEFT TOP FRONT
OF ENGINE) TOP FRONT CENTER
OF ENGINE) (LEFT TOP
FRONT OF
ENGINE)
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Fig 17: Ground Distribution Circuit (3 of 3)
59262
450450
BLK/
WHTWHT
BLK/
EVRV
ELECTRONIC
VACUUM
REGULATOR
VALVE
SOLENOID
VEHICLE
SPEED
SENSOR
BUFFER
VEHICLE
SPEED
SENSOR
BUFFER
PARK/
NEUTRAL
POSITION
SWITCH
HOT
FUEL
HANDLING
MODULE
CONVENIENCE
CENTER
CONVENIENCE
CENTER KNOCK
SENSOR
MODULE
POWERTRAIN
CONTROL
MODULE (PCM)
FUEL
PUMP
RELAY
POWERTRAIN
CONTROL
MODULE (PCM)
FUEL
PUMP
RELAY
DATA
LINK
CONNECTOR
DATA
LINK
CONNECTOR
FUEL
PUMP
FUEL
PUMP
LEFT REAR FENDER ENDGATE RIGHT REAR FENDER
LEFT
FRONT
CLEARANCE
LAMP
RIGHT
REAR
CLEARANCE
LAMP
RIGHT
FRONT
CLEARANCE
LAMP
LEFT
REAR
CLEARANCE
LAMP
ENDGATE CLEARANCE LAMPS
RIGHT REAR
TAIL,
STOP,
TURN AND
BACKUP
LAMPS
LEFT REAR
TAIL,
STOP,
TURN AND
BACKUP
LAMPS
LEFT
LICENSE
LAMP
RIGHT
LICENSE
LAMP
RIGHT TAIL/
STOP,
TURN AND
BACKUP
LAMP
LEFT TAIL/
STOP,
TURN AND
BACKUP
LAMP
LEFT
LICENSE
LAMP
RIGHT
LICENSE
LAMP
AUXILLIARY
AIR CONDI-
TIONING
(OR HEATER
AND AIR
CONDITIONING)
CONTROL
AUXILLIARY
AIR CONDI-
TIONING
(OR HEATER
AND AIR
CONDITIONING)
CONTROL
AUXILLIARY
HEATER AND
AIR
CONDITIONING
LOGIC
MODULE
RIGHT
CARGO
DOOR
DEFOGGER
GRID
REAR
ENDGATE
WINDOW
DEFOGGER
GRID
LEFT
CARGO
DOOR
DEFOGGER
GRID
RIGHT REAR TAIL, STOP,
LICENSE,
TURN AND
BACKUP
LAMPS
LEFT REAR TAIL, STOP,
LICENSE,
TURN AND
BACKUP
LAMPS
TEMPER-
ATURE
DOOR
MOTOR
TEMPER-
ATURE
MODE DOOR
RELAY
REAR
WIPER
MOTOR
MODULE
LIFTGATE
WINDOW
RELEASE
SOLENOID
CENTER
HIGH
MOUNT
STOPLAMP
BLOWER
MOTOR
MODE
DOOR
MOTOR
RIGHT
DOOR
CONTACT
SWITCH
LEFT
DOOR
CONTACT
SWITCH
REAR DOOR
JAMB SWITCH
L49, L56 & L65 DIESEL ENGINES W/ MANUAL TRANSMISSION L03, L05 GASOLINE ENGINES W/ MANUAL TRANSMISSION
(VIN K)
(W/ MANUAL
TRANSMISSION)
SUBURBAN & UTILITY
W/ AUTOMATIC
TRANSMISSIONS
(L05 ENGINE
W/HD AUTOMATIC
TRANSMISSION)
PICKUP WITH DUAL REAR WHEELS
PICKUP (W/O DUAL REAR WHEELS), SUBURBAN AND UTILITY
TRAILER
HEAVY DUTY TRAILER
WIRING U89
(W/ PLATFORM HITCH)
(W/O PLATFORM HITCH) (W/ PLATFORM HITCH) (W/O PLATFORM HITCH)
SUBURBAN & UTILITY
CHASSIS CAB WITH ENDGATE
(FRONT) (REAR) (REAR)
W/ AUXILLIARY
HEATER & AIR
CONDITIONING
W/ REAR
AUXILLIARY
HEATER ONLY
SUBURBAN &
UTILITY NON-BASE
VEHICLE (W/O PLATFORM
HITCH)
(W/ PLATFORM
HITCH)
G117
G125
G110
G409
G409 G409 G409
G409 G409
G409 G409
G998
(TOP RIGHT REAR
OF ENGINE) (TOP FRONT
CENTER OF ENGINE) (LEFT TOP
FRONT OF ENGINE)
(BOTTOM
CENTER OF ENDGATE)
(AT REAR OF
LEFT FRAME RAIL)
(AT LEFT SIDE OF HITCH)
(AT LEFT REAR OF FRAME RAIL) (AT LEFT SIDE OF HITCH)
(AT LEFT REAR
OF FRAME RAIL)
(AT RIGHT "D" PILLAR) (AT LEFT
REAR OF FRAME RAIL)
(AT LEFT
SIDE OF HITCH)
RIGHT
GAS
STRUT
CYLINDER
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DEFOGGERS
Fig 18: Defogger Circuit
59109
OFF
ON
ON
INDICATOR
LAMPS
PANEL
15083960
HOT WITH HEADLIGHT SWITCH
IN PARK OR HEADTEST OR START
HOT IN RUN, BULB
5A
HOT AT ALL TIMES
30A 20A
B
BA
EAC
D
NCA
NCA
BLK
BLK
BLK
BLK
PPL/WHT
ORG PNK/BLK GRY BLK
GRYPNK/BLK
GRYPNK/BLK
BLK
ORG/
FUSE
BLOCK
FUSE
BLOCK
FUSE
BLOCK PNL LPS
FUSE
GAUGES
FUSE
ACC/BAT
CIRCUIT BREAKER
(REG CAB)
(EXT AND CREW CAB)
CONVENIENCE
CENTER
REAR
DEFOGGER
SWITCH
REAR
DEFOGGER
GRID
G206 G305
G905
(UNDER LEFT
SIDE OF I/P)
(AT DLC
CONNECTOR) (AT RIGHT B-PILLAR)
(AT RIGHT C-PILLAR)
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