The wiring circuits in your vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of fires caused by electrical problems.
Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating. If a fuse blows, see your dealer for service immediately.
If you ever have a problem on the road and don't have a spare fuse, you can "borrow" one that has the same amperage. Pick some feature of your vehicle that you can get along without - like the radio or cigarette lighter - and use its fuse, if it is the correct amperage. Replace it as soon as you can.
The fuses are located in three fuse blocks, one located in the engine compartment on the passenger's side and the other two under the rear seat.
Underhood Fuse Block
The underhood fuse block is located in the engine compartment on the passenger's side of the vehicle. See Engine Compartment Overview for more information on location.
To access the fuses, push in the two tabs located on each side of the fuse block cover. Then lift the cover off.
Relays | Usage |
|---|---|
LO SPEED FAN RELAY MINI | Low Speed Fan Motor |
HI SPEED FAN RELAY MINI | High Speed Fan Motor |
ACCESSORY RELAY MINI | Accessory Power Outlets |
S/P FAN RELAY MINI | Series/Parallel Fan |
PARK LAMP RELAY MICRO | Parking Lamps |
HORN RELAY MICRO | Horn |
HI BEAM RELAY MICRO | High-Beam Headlamps |
DRL RELAY MICRO-OPT | Daytime Running Lamps |
LO BEAM RELAY/HID MINI-OPT | Low-Beam HID Headlamps (Option) |
HDLP WASH RELAY MINI-OPT | Headlamp Washer Motor (Option) |
SPARE | Not Used |
BLOWER RELAY MINI | Front Blower |
FOG LAMP RELAY MICRO | Fog Lamps |
MAIN RELAY MICRO | Powertrain/ECM |
STARTER RELAY MINI | Starter Solenoid |
CMP CLU RELAY MICRO | Compressor Clutch |
IGN-1 RELAY MICRO | Ignition Switch (ON) |
Wiring Harnesses | Usage |
|---|---|
BODY W/H | Wiring Harness Connection |
I/P W/H | Wiring Harness Connection |
ENG W/H | Engine Wiring Harness Connection |
FORWARD LAMP | Forward Lamp Wiring Harness Connection |
J Cases | Usage |
|---|---|
R REAR | RRPDB (Passenger's Side Rear Power Distribution Box) |
R REAR | RRPDB (Passenger's Side Rear Power Distribution Box) |
L REAR | LRPDB (Driver's Side Rear Power Distribution Box) |
L REAR | LRPDB (Driver's Side Rear Power Distribution Box) |
HI FAN | High Cooling Fan Motor |
LOW FAN | Low Cooling Fan Motor |
BLOWER | PWM Fan Motor Assembly |
STARTER | Starter Solenoid |
EBCM | Electronic Brake Control Module |
Fuses | Usage |
|---|---|
RT PARK | Passenger's Side Taillamp Assembly, Front Sidemarker and Front Parking Lamp Assembly |
HORN | Dual Horn Assembly |
LT HI BEAM | Driver's Side High-Beam Headlamp |
LT LOW BEAM | Driver's Side Low-Beam Headlamp |
RT LOW BEAM | Passenger's Side Low-Beam Headlamp |
RT HI BEAM | Passenger's Side High-Beam Headlamp |
HFV6 ECM | High Feature V6 ECM (Electronic Control Module) |
REAR WPR | Rear Wiper Motor |
THEFT | ECM, TCM (Transmission Control Module), PASS-Key III+ Module |
LT PARK | Driver's Side Taillamp Assembly, Front Sidemarker and Front Parking Lamp Assembly |
LIC/DIMMING | Rear License Plate Assembly, DIM (Dash Integration Module) |
DIM/ALDL | DIM, ALDL (Assembly Line Data Link) |
FLASHER | Turn Signal/Hazard Flasher Module |
V8 ECM | V8 ECM, Canister Purge |
STRG CTLS | Steering Wheel Control Pad, Headlamp Switch |
STARTER RLY | Jumper to Starter Relay |
WASH NOZ | Driver's and Passenger's Side Heated Washer Nozzles |
ODD COILS | Odd Ignition Coils, Fuel Injectors, Odd Injection Coils |
TCM/IPC | TCM, ECM and IPC (Instrument Panel Cluster) |
SPARE | Not Used |
ABS | Anti-Lock Brake System |
VICS | Vehicle Information and Communication System |
SPARE | Not Used |
SPARE | Not Used |
IGN SW | Ignition Switch (Power to IGN-3 and CRANK) |
VOLT CHECK | DIM |
ECM/TCM | ECM, TCM, IPC, PASS-Key III+ Module |
WPR MOD | Windshield Wiper Module Assembly |
POSTO2 | Post O2 Sensors |
COMP CLUTCH | Compressor Clutch |
WPR SW | Windshield Wiper/Washer Switch |
FOG LAMP | Fog Lamps |
OUTLET | Center Console Accessory Power Outlet |
EVEN COILS | Even Injection Coils |
I/P OUTLET | Instrument Panel Accessory Power Outlet |
CCP | Climate Control |
PREO2/CAM | Driver's and Passenger's Side Oxygen Sensors, CAM Phaser |
SPARE | Not Used |
SPARE | Not Used |
SPARE | Not Used |
Circuit Breakers | Usage |
|---|---|
HDLP WASH C/B-OPT | Headlamp Washer Motor (Optional) |
Rear Underseat Fuse Block (Driver's Side)
The driver's side rear fuse block is located under the rear seat on the driver's side of the vehicle. The carpet must be lifted up to access the rear fuse block.
To access the fuse block, push in the two tabs located at each end of the fuse block cover. Then lift the cover off.
Relays | Usage |
|---|---|
BASS RELAY MINI | Brake Apply Sensor |
SPARE | Not Used |
ELC RELAY MINI | ELC (Electronic Level Control) Compressor Motor |
SPARE | Not Used |
L POSITION RELAY MICRO | Driver's Side Position Lamp |
R POSITION RELAY MICRO | Passenger's Side Position Lamp |
IGN 3 RELAY MICRO | Heated Seat Modules, Air Inlet Motor, Shifter Assembly |
STANDING LAMP RLY MICRO | Control for Position Lamp Relays |
SPARE | Not Used |
REV LAMP RELAY MICRO | ISRVM (Inside Rearview Mirror), License Plate Lamp Assembly |
Fuses | Usage |
|---|---|
L FRT HTD SEAT MOD | Driver's Heated Seat Module |
MEM/ADAPT SEAT | Driver's Power Seat Switch, Memory Seat Module |
THEFT | Universal Garage Door Opener, Intrusion Sensor, Diversity Antenna Module |
REVERSE LAMP | ISRVM (Inside Rearview Mirror), License Plate Lamp Assembly |
SPARE | Not Used |
POSITION LAMP | Taillamp Assemblies, Front Position Lamp Assemblies |
SPARE | Not Used |
ELC COMP | ELC Compressor, ELC Solenoid |
AUDIO | Radio, OnStar Module |
FFS SW | Flip Fold Seat Switch |
REAR DR MOD | Rear Door Modules |
FFSM | Flip Fold Seat Module |
DRIVER DR MOD | Driver's Door Module |
BASS | Taillamps, Center High-Mounted Stop Lamp, Flasher Module, ABS Module, Trailer Lamps |
HDLP LEVELING | Headlamp Leveling System Chassis Sensors (Export Only) |
SPARE | Not Used |
CCP | CCP (Climate Control Panel) |
IGN 3 | Heated Seat Modules, Air Inlet Motor, Shifter Assembly |
J Cases | Usage |
|---|---|
AMP | Audio Amplifier |
ELC | ELC Compressor |
Circuit Breakers | Usage |
|---|---|
SEAT C/B | Power Seat Switches, Memory Seat Module |
Rear Underseat Fuse Block (Passenger's Side)
The passenger's side rear fuse block is located under the rear seat on the passenger's side of the vehicle. The carpet must be lifted up to access the rear fuse block.
To access the fuse block, push in the two tabs located at each end of the fuse block cover. Then lift the cover off.
Relays | Usage |
|---|---|
PRIMARY QUARTER A/C RELAY MINI | Rear A/C |
SPARE | Not Used |
REAR DEFOG RELAY MINI | Rear Window Defogger |
SPARE | Not Used |
AFTERBOIL RELAY MICRO | Afterboil Pump |
INT LAMP RELAY MICRO | Hush Panel Lamps, Puddle Lamps, Overhead Courtesy Lamp Assembly |
IGN 1 RELAY MICRO | Ignition Switch |
SPARE | Not Used |
REAR FOG LAMP RLY MICRO | Rear Fog Lamps (Export Only) |
FUEL PUMP MOTOR RLY MICRO | Fuel Pump Motor |
Fuses | Usage |
|---|---|
INTERIOR LAMP | Hush Panel Lamps, Puddle Lamps, Overhead Courtesy Lamp Assembly |
RT FRT DR MOD | Passenger's Door Module |
RIM | RIM (Rear Integration Module), Ignition Switch, Key Lock Cylinder |
REAR FOG LAMP | Rear Fog Lamps (Export Only) |
SUSPNTN | Suspension Module |
VICS | TV Tuner Assembly, VICS (Vehicle Information Communication System) Module |
SPARE | Not Used |
POWER SOUNDER | Power Sounder, Inclination Sensor |
AFTERBOIL | Afterboil Heater Pump |
CANISTER VENT | Canister Vent Solenoid |
FUEL PUMP MTR | Fuel Pump Motor |
REAR HVAC | Rear Climate Control System |
R FRT HTD SEAT MOD | Passenger's Side Heated Seat Module |
REAR HATCH | Rear Hatch Latch |
AIR BAG | SDM (Sensing Diagnostic Module) |
IGN 1 | Shifter, Power Sounder, Rear Parking Aid, Rearview Mirror, RIM |
SPARE | Not Used |
SPARE | Not Used |
J Cases | Usage |
|---|---|
SUNROOF MOD | Power Sunroof Module |
REAR DEFOG | Rear Window Defogger Element |
Circuit Breakers | Usage |
|---|---|
DR MOD PWR C/B | Door Modules |
