Jonathan Yarden Oct 22, 2021 · 5 min. read
In this article you will find a description of fuses and relays Chevrolet,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Year of production: 2004, 2005
Instrument Panel Fuse Block (Driverâs Side)
Some fuses are in a fuse block on the driverâs side of the instrument panel.
| Mini Fuse | Description |
| PCM/BCM/CLS TR | Powertrain Control Module, Body Control Module, Cluster (Ignition 0) |
| WSW | Windshield Wipers, Windshield Washer |
| PCM (CRANK) | Powertrain Control Module (Crank) |
| CIG/AUX | Accommodated Device (Accessory) |
| BCM | Body Control Module (Accessory) |
| SRS | Supplemental Restraint System |
| ABS/PCM | Anti-Lock Brake System, Powertrain Control Module, Brake Switch, Crank Relay, Canister Vent Solenoid (Run, Crank) |
| STOP | Brake Lamps, Body Control Module (Run, Crank) |
| TURN SIGNAL | Turn Signal Flashers |
| CRUISE | Cruise Control Steering Column Controls |
| AC/CRUISE | HVAC Temp Door Motors &Â Module, Cruise Control Module |
| A/C FAN | HVAC Blower |
| STR COL | Steering Wheel Lighting |
| DR LK | Body Control Module, Door Lock Controls |
| PWR MIR | Power Mirrors |
| CLSTR/BCM | Cluster, Body Control Module, Data Link Connector (Battery) |
| LH HTD ST/BCM | Driverâs Heated Seat, Body Control Module, Battery Controlled Loads |
| Circuit Breaker | Description |
| RETAINEDÂ ACCESSORYÂ PWR BRKR | Power Window, Sunroof Breaker |
| Relays | Description |
| RETAINEDÂ ACCESSORYÂ PWR RELAY | Retained Accessory Power Relay |
| HEADLAMPÂ RELAY | Headlamp Relay |
Instrument Panel Fuse Block (Passengerâs Side)
Some fuses are in a fuse block on the passengerâs side of the instrument panel.
| Fuse | Description |
| RH HTD ST | Passenger Heated Seat |
| PWR DROP | Accommodated Device |
| B/U LP | Back-Up Lamps |
| DIC/RKE | Driver Information Center, Remote Keyless Entry, HVAC |
| TRK/ROOFÂ BRP | Trunk Lamps, Headliner Lamps |
| HVAC BLO | HVAC Blower Relay |
| I/P BRP | Instrument Panel Footwell Lamps, Glovebox Lamps |
| HTD MIR | Heated Mirrors |
| BRK SW | Brake Switch |
| HAZ SW | Hazard Switch |
| REAR PRK LP | Rear Parking Lamps |
| AUX PWR | Accessory Power Outlet (Battery) |
| C/LTR | Cigarette Lighter |
| RADIO | Radio, Radio Amplifier |
| FRT PARK LP | Front Parking Lamps, Instrumentation Lighting |
| Relay | Description |
| PARK LPÂ RELAY | Parking Lamp Relay |
| BACKUP LPÂ RELAY | Back-up Lamps Relay |
| BATT RUN DOWN PROTECTION RELAY | Battery Run Down Protection Relay |
| REAR DEFOG RELAY | Rear Defog Relay, Heated Mirror Relay |
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| Breaker | Description |
| PWR SEATSÂ BRKR | Power Seat Circuit Breaker |
| REAR DEFOGÂ BRKR | Rear Defog Breaker |
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Underhood Fuse Block (Upper)
Some fuses are in a fuse block on the passengerâs side of the engine compartment.
| Relay | Usage |
| FUEL PUMP | Fuel Pump |
| DRL RELAY | Daytime Running Lamps |
| A.I.R. RELAY | Air Induction Reaction Relay |
| CRANK RLY | Starter (Crank) Relay |
| HORNS | Horn |
| FOG LTS | Fog Lamps |
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| Fuses | Description |
| LEFT I/P | Left Fuse Block |
| RT I/P #1 | Right Fuse Block (Battery) |
| RT I/P #2 | Right Fuse Block (Battery) |
| U/HOOD #1 | Underhood (Top) Fuse Block |
| HORN RLY | Horn Relay |
| BLANK | Blank |
| BLANK | Blank |
| FOG RLY | Fog Lamp Relay |
| F/PMP RLY | Fuel Pump Relay |
| DRL/EXIT LTS | Low (Left Front) & High (Left Front) Headlamps |
| EXT LTS | Low (Right Front) & High (Right Front) Headlamps |
| PCM | PCM Battery |
| A/C RLY (CMPR) | HVAC Compressor Relay & Generator |
| BLOWER MOTOR | HVAC Blower Motor |
Underhood Fuse Block (Lower)
Some fuses are in a fuse block on the passengerâs side of the engine compartment.
| Relay | Usage |
| FAN CONT #3 | Secondary Cooling Fan (Passengerâs Side) |
| FAN CONT #2 | Cooling Fan Control Relay |
| FAN CONT #1 | Primary Cooling Fan (Driverâs Side) |
| IGN RELAY | Ignition Relay |
| A/C CMPR | HVAC Compressor |
| Fuses | Usage |
| IGN SW | Ignition Switch |
| RT I/P #3 | Rear Defogger, Audio System |
| U/HOOD #2 | Ignition Relay, AIR Pump |
| COOLING FANS | Cooling fans (Battery) |
| FAN CONTÂ #2 & #3 | Relays #2 & #3 |
| FAN CONT #1 | Cooling Fan Control Relays #1 |
| FUEL INJ | Fuel Injectors |
| TRANS SOL | Transmission Solenoids |
| A/C RLYÂ (COIL) | HVAC Control Relay |
| ENG DEVICES | Canister Purge Solenoid, Mass Air Flow Sensor (MAF), AIR Pump Relay & Valve Control |
| DFI MDL | Direct Fire Ignition Module |
| OXY SEN | Oxygen Sensors (Pre and Post Converter) |
WARNING:Â Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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