Jonathan Yarden Oct 06, 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: 2000, 2001, 2002, 2003, 2004, 2005, 2006
Driver’s Side Instrument Panel Fuse Block
| Circuit Relay | Description |
| RETAINED ACCESSORY PWR RELAY | Retained Accessory Power Relay |
| HEADLAMP RELAY | Headlamp Relay |
| RETAINED ACCESSORY PWR BRKR | Power Window, Sunroof Breaker |
| Mini Fuses | Description |
| PCM/BCM/CLSTR | 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 |
| A/C CRUISE | HVAC Temp Door Motors & 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 | Driver’s Heated Seat, Body Control Module, Battery Controlled Loads |
Passenger’s Side Instrument Panel Fuse Block
| Circuit Relay | Description |
| PARK LP RELAY | Parking Lamp Relay |
| BACKUP LP RELAY | Back-up Lamps Relay |
| BATT RUN DOWN PROTECTION RELAY | Battery Run Down Protection Relay |
| REAR DEFOG RELAY | Rear Defog Relay, Heated Mirror Relay |
| Circuit Breaker | Description |
| POWER SEATS BRKR | Power Seat Circuit Breaker |
| REAR DEFOG BRKR | Rear Defog Breaker |
| Mini Fuses | 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/ROOF 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 |
| FRT PRK LP | Front Parking Lamps |
| AUX PWR | Auxiliary Power Outlet (Battery) |
| C/LTR | Cigarette Lighter |
| RADIO | Radio, Radio Amplifier |
| REAR PARK LP | Rear Parking Lamps, Instrumentation Lighting |
Underhood Fuse Block #1
Fuse block is located on the passenger’s side of the engine compartment.
| Circuit Relay | Description |
| 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 |
| Maxi Fuses | Description |
| LEFT I/P | Left Bussed Electrical Center (Battery) |
| RT I/P #1 | Right Bussed Electrical Center (Battery) |
| RT I/P #2 | Right Bussed Electrical Center (Battery) |
| Mini Fuses | Description |
| HORN RLY | Horn Relay |
| 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 |
Underhood Fuse Block #2
| Circuit Relay | Description |
| FAN CONT #3 | Secondary Cooling Fan (Passenger’s Side) |
| FAN CONT #2 | Cooling Fan Control Relay |
| FAN CONT #1 | Primary Cooling Fan (Driver’s Side) |
| IGN RELAY | Ignition Relay |
| A/C CMPR | HVAC Compressor |
| Maxi Fuses | Description |
| IGN SW | Ignition Switch |
| BLANK | Blank |
| U/HOOD #2 | Ignition Relay, AIR Pump |
| COOLING FANS | Cooling Fans (Battery) |
| Mini Fuses | Description |
| FAN CONT #2 & #3 | Cooling Fan Control Relays #2 & #3 |
| FAN CONT #1 | Cooling Fan Control Relays #1 |
| AIR PMP RLY | Air Induction Reaction Pump Relay (Battery) |
| FUEL INJ | Fuel Injectors |
| TRANS SOL | Transmission Solenoids |
| A/C RLY (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: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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