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Chevrolet Silverado / GMC Sierra. Manual - part 1571
CIRCUIT PROTECTION DEVICES
CIRCUIT PROTECTION DEVICES LOCATION
CONTROL UNITS
CONTROL UNITS LOCATION
Component
Location
Fuse Block (I/P)
Left side of dash. See Fig. 18.
Fuse Block (Mobile Radio) (1)
Behind right side of dash. See Fig. 112.
Fuse Holder (Underhood) (Diesel) (2)
Right side of firewall. See Fig. 92.
Fuse Holder (Underhood) (6.6L)
Right side of firewall. See Fig. 59.
Heated Steering Fuse Holder (3)
On steering column. See Fig. 113.
Junction Block (Left I/P)
Lower left side of dash. See Fig. 18.
Junction Block (Rear Lamps)
Inside of left rear frame rail. See Fig. 19.
Junction Block (Right I/P)
In right end of dash. See Fig. 49.
Mega Fuse (2)
Right rear of engine compartment. See Fig. 91.
Underhood Fuse Block (4)
Left side of engine compartment. See Fig. 2.
Component
Location
Blower Motor Control Module (CJ2)
Lower right side of HVAC module. See
Fig. 31.
Blower Motor Control Module (C67)
Lower right side of HVAC module. See
Fig. 32.
Body Control Module (BCM)
Lower left side of dash. See Fig. 18.
Central Sequential Fuel Injection (SFI) Module
(1)
Top rear of engine. See Fig. 84.
Chime Module
Center of dash, behind radio.
Electronic Brake Control Module (EBCM)
On left side of frame assembly. See Fig.
5.
Engine Control Module (ECM) (5)
Left front of engine compartment, near
fan shroud. See Fig. 2.
Fuel System Control Module (FSCM)
Under rear of vehicle. See Fig. 24.
Glow Plug Control Module (GPCM) (6.6L)
Top left rear of engine. See Fig. 58.
Heated Steering Wheel Control Module (1)
In steering wheel. See Fig. 96.
Ignition Control Module (ICM) (4.3L) (5)
Rear of engine. See Fig. 84.
Inflatable Restraint Front Passenger Presence
2008 Chevrolet Silverado 1500
2008 GENERAL MOTORS Sierra & Silverado
MOTORS
MOTORS LOCATION
System (PPS) Module (7)
Under front passenger seat. See Fig. 38.
Inflatable Restraint Sensing & Diagnostic
Module (SDM)
Under driver's seat. See Fig. 4.
Infrared Module (3)
In headliner. See Fig. 100.
Intake Air Heater (IAH) Module (6.6L)
Left front of engine. See Fig. 58.
Integrated Trailer Brake Controller (ITBC)
Module
On rear of left frame rail. See Fig. 44.
Memory Seat Module (10)
Under front of driver's seat. See Fig. 37.
Power Take Off (PTO) Module (PTO) (8)
Outside of right front chassis frame. See
Fig. 87.
Rear Object Sensor Control Module
At rear cargo area, behind trim panel. See
Fig. 4.
Theft Deterrent Control Module
On right side of steering column. See Fig.
3.
Throttle Actuator Control (TAC) Module (6.6L)
Top right front of engine. See Fig. 60.
Trailer Brake Controller Module (TBCM)
(20/30 Series) (2)
Left rear frame rail. See Fig. 107.
Trailer Brake Controller Module (TBCM) (31
Series) (2)
On left frame rail. See Fig. 108.
Transfer Case Shift Control Module
Lower left side of dash. See Fig. 18.
Transmission Control Module (Allison)
Left front of engine compartment, near
fan shroud. See Fig. 11.
Transmission Control Module (M30/M70/MW7)
(6)
Left front of engine compartment, near
fan shroud. See Fig. 2.
Vehicle Communication Interface Module
(VCIM) (5)
Behind center of dash. See Fig. 93.
Component
Location
Air Temperature Actuator (C67)
Top middle of HVAC module. See Fig. 32.
Air Temperature Actuator (Left) (CJ2)
Bottom left of HVAC module. See Fig. 31.
Air Temperature Actuator (Right) (CJ2)
Top middle of HVAC module. See Fig. 31.
Blower Motor (CJ2)
Lower right side of HVAC module. See Fig.
31.
2008 Chevrolet Silverado 1500
2008 GENERAL MOTORS Sierra & Silverado
Blower Motor (C67)
Lower right side of HVAC module. See Fig.
32.
Cooling Fan (Left)
Left front of engine compartment. See Fig.
26.
Cooling Fan (Right
Right front of engine compartment. See Fig.
26.
Door Latch Assembly (Driver/Passenger)
In rear of respective front door.
Electronic Adjustable Pedal Assembly
Under left side of dash. See Fig. 1.
Front Axle Actuator
On front axle assembly. See Fig. 46.
Fuel Pump (Diesel) (2)
Between fuel tanks, on left frame rail. See
Fig. 104.
Fuel Pump & Sender Assembly - Front (Gas)
(2)
In front fuel tank. See Fig. 103.
Fuel Pump & Sender Assembly (Primary)
Inside fuel tank. See Fig. 5.
Fuel Pump & Sender Assembly - Rear (Gas
+LY6) (1)
In rear fuel tank. See Fig. 103.
Fuel Pump & Sender Assembly (Short Wheel
Base)
Inside fuel tank. See Fig. 25.
Mode Actuator (CJ2)
Left end of HVAC module. See Fig. 31.
Mode Actuator (C67)
Left end of HVAC module. See Fig. 32.
Recirculation Actuator (CJ2)
Top right side of HVAC module. See Fig.
31.
Recirculation Actuator (C67)
Top right side of HVAC module. See Fig.
32.
Seat Adjuster Assembly (Driver) (12)
On driver's seat track. See Fig. 37.
Seat Adjuster Assembly (Passenger) (8)
On passenger's seat track. See Fig. 38.
Seat Lumbar Horizontal Motor (Driver) (5)
In driver's seat back. See Fig. 37.
Seat Lumbar Horizontal Motor (Passenger)
(11)
In passenger's seat back. See Fig. 38.
Seat Lumbar Vertical Motor (Driver) (3)
In driver's seat back. See Fig. 37.
Seat Lumbar Vertical Motor (Passenger) (3)
In passenger's seat back. See Fig. 38.
Seat Recline Motor (Driver) (1)
Lower right side of driver seat back. See Fig.
37.
Seat Recline Motor (Passenger) (10)
Lower right side of passenger's seat back. See
Fig. 38.
Right rear of passenger compartment. See
2008 Chevrolet Silverado 1500
2008 GENERAL MOTORS Sierra & Silverado
SENDING UNITS & SENSORS
SENDING UNITS & SENSORS LOCATION
Sliding Rear Window Motor
Fig. 29.
Starter (4.3L) (8)
Lower right rear of engine. See Fig. 83.
Starter (4.8L, 5.3L, 6.0L & 6.2L) (10)
Lower right rear side of engine. See Fig. 20.
Starter (6.6L)
Lower right rear side of engine. See Fig. 60.
Sunroof Module
In front of sunroof, above headliner.
Transfer Case Encoder Motor (NQH)
On transfer case. See Fig. 47.
Window Motor (Driver)
Inside driver's door. See Fig. 13.
Window Motor (Left Rear) (Crew Cab)
In left rear door. See Fig. 15.
Window Motor (Left Rear) (Extended Cab)
In left rear door. See Fig. 27.
Window Motor (Passenger)
Inside passenger's door. See Fig. 14.
Window Motor (Right Rear) (Crew Cab)
In right rear door. See Fig. 16.
Window Motor (Right Rear) (Extended Cab)
In right rear door. See Fig. 28.
Windshield Washer Fluid Pump
Bottom of washer fluid reservoir. See Fig.
48.
Windshield Wiper Motor (1)
Under windshield cowl, between wiper arms.
See Fig. 2.
Component
Location
Accelerator Pedal Position (APP) Sensor
Above accelerator pedal. See Fig. 1.
A/C Refrigerant Pressure Sensor (4.3L) (6)
Near compressor, on A/C high
pressure hose. See Fig. 91.
A/C Refrigerant Pressure Sensor (4.8L, 5.3L, 6.0L &
6.2L) (4)
Near compressor, on A/C high
pressure hose. See Fig. 23.
A/C Refrigerant Pressure Sensor (6.6L)
Near compressor, on A/C high
pressure hose. See Fig. 58.
Air Temperature Sensor (Lower Left) (CJ2)
Left side of HVAC module. See Fig.
31.
Air Temperature Sensor (Lower Right) (CJ2)
Lower left of HVAC module. See
Fig. 31.
Air Temperature Sensor (Upper Left) (CJ2) (1)
Under upper left side of dash. See
Fig. 95.
Air Temperature Sensor (Upper Right ) (CJ2) (2)
Under upper right side of dash. See
Fig. 95.
2008 Chevrolet Silverado 1500
2008 GENERAL MOTORS Sierra & Silverado
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