Jonathan Yarden Mar 25, 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: 2007
Instrument panel fuse block
The instrument panel fuse block access door is located on the driver’s side edge of the instrument panel.
| Fuses | Usage |
| AUX PWR2 | Rear Cargo Area Power Outlets |
| SWC BKLT | Steering Wheel Controls Backlight |
| DDM | Driver Door Module |
| CTSY | Dome Lamps, Driver’s Side Turn Signal |
| LT STOP TRN | Driver’s Side Turn Signal, Stoplamp |
| DIM | Instrument Panel Back Lighting |
| RT STOP TRN | Passenger’s Side Turn Signal, Stoplamp |
| BCM | Body Control Module |
| UNLCK2 | Power Door Lock 2 (Unlock Feature) |
| LCK2 | Power Door Lock 2 (Lock Feature) |
| STOP LAMPS | Stoplamps, Center-High Mounted Stoplamp |
| REAR HVAC | Rear Climate Controls |
| PDM | Passenger Door Module, Universal Home Remote System |
| AUX PWR | Accessory Power Outlets |
| IS LPS | Interior Lamps |
| UNLCK1 | Power Door Lock 1 (Unlock Feature) |
| OBS DET | Ultrasonic Rear Parking Assist, Power Liftgate |
| LCK1 | Power Door Lock 1 (Lock Feature) |
| REAR WPR | Rear Wiper |
| COOLED SEATS | Not Used |
| DSM | Driver Seat Module, Remote Keyless Entry System |
| Harness Connector | Usage |
| LT DR | Driver’s Door Harness Connection |
| BODY | Harness Connector |
| BODY | Harness Connector |
Center Instrument Panel Utility Block
The center instrument panel fuse block is located underneath the instrument panel, to the left of the steering column.
| Harness Connector | Usage |
| BODY 2 | Body Harness Connector 2 |
| BODY 1 | Body Harness Connector 1 |
| BODY 3 | Body Harness Connector 3 |
| HEADLINER 3 | Headliner Harness Connector 3 |
| HEADLINER 2 | Headliner Harness Connector 2 |
| HEADLINER 1 | Headliner Harness Connector 1 |
| BRAKE CLUTCH | Brake Clutch Harness Connector |
| SEO/UPFITTER | Special Equipment Option Upfitter Harness Connector |
| Circuit Breaker | Usage |
| CB1 | Passenger’s Side Power Window Circuit Breaker |
| CB2 | Passenger’s Seat Circuit Breaker |
| CB3 | Driver’s Seat Circuit Breaker |
| CB4 | Not Used |
Underhood Fuse Block
The underhood fuse block is located in the engine compartment, on the driver’s side of the vehicle.
| Fuses | Usage |
| 1 | Not Used |
| 2 | Electronic Stability Suspension Control, Automatic Level Control Exhaust |
| 3 | Left Trailer Stop/Turn Lamp |
| 4 | Engine Controls |
| 5 | Engine Control Module, Throttle Control |
| 6 | Right Trailer Stop/Turn Lamp |
| 7 | Front Washer |
| 8 | Oxygen Sensors |
| 9 | Anti-lock Brakes System 2 |
| 10 | Trailer Back-up Lamps |
| 11 | Driver’s Side Low-Beam Headlamp |
| 12 | Engine Control Module (Battery) |
| 13 | Fuel Injectors, Ignition Coils (Right Side) |
| 14 | Transmission Control Module (Battery) |
| 15 | Vehicle Back-up Lamps |
| 16 | Passenger’s Side Low-Beam Headlamp |
| 17 | Air Conditioning Compressor |
| 18 | Oxygen Sensors |
| 19 | Transmission Controls (Ignition) |
| 20 | Fuel Pump |
| 21 | Not Used |
| 22 | Rear Washer |
| 23 | Fuel Injectors, Ignition Coils (Left Side) |
| 24 | Trailer Park Lamps |
| 25 | Driver’s Side Park Lamps |
| 26 | Passenger’s Side Park Lamps |
| 27 | Fog Lamps |
| 28 | Horn |
| 29 | Passenger’s Side High-Beam Headlamp |
| 30 | Daytime Running Lamps |
| 31 | Driver’s Side High-Beam Headlamp |
| 32 | Not Used |
| 33 | Sunroof, Emergency Roof Lamp |
| 34 | Key Ignition System, Theft Deterrent System |
| 35 | Windshield Wiper |
| 36 | SEO B2 Upfitter Usage (Battery) |
| 37 | Electric Adjustable Pedals |
| 38 | Climate Controls (Battery) |
| 39 | Airbag System (Ignition) |
| 40 | Amplifier |
| 41 | Audio System |
| 42 | Four-Wheel Drive |
| 43 | Miscellaneous (Ignition), Rear Vision Camera, Cruise Control |
| 44 | Liftgate Release |
| 45 | OnStar®, Rear Seat Entertainment Display |
| 46 | Instrument Panel Cluster |
| 47 | Not Used |
| 48 | Not Used |
| 49 | Auxiliary Climate Control (Ignition), Compass-Temperature Mirror |
| 50 | Rear Defogger |
| 51 | Airbag System (Battery) |
| 52 | SEO B1 Upfitter Usage (Battery) |
| 53 | Cigarette Lighter, Auxiliary Power Outlet |
| 54 | Automatic Level Control Compressor Relay, SEO Upfitter Usage |
| 55 | Climate Controls (Ignition) |
| 56 | Engine Control Module, Secondary Fuel Pump (Ignition) |
| J-Case Fuse | Usage |
| 60 | Cooling Fan 1 |
| 61 | Automatic Level Control Compressor |
| 62 | Heavy Duty Anti-lock Brake System |
| 63 | Cooling Fan 2 |
| 64 | Anti-lock Brake System 1 |
| 65 | Starter |
| 66 | Stud 2 (Trailer Brakes) |
| 67 | Left Bussed Electrical Center 1 |
| 68 | Electric Running Boards |
| 69 | Heated Windshield Washer System |
| 70 | Four-Wheel Drive System |
| 71 | Stud 1 (Trailer Connector Battery Power |
| 72 | Mid-Bussed Electrical Center 1 |
| 73 | Climate Control Blower |
| 74 | Power Liftgate Module |
| 75 | Left Bussed Electrical Center 2 |
| Relays | Usage |
| FAN HI | Cooling Fan High Speed |
| FAN LO | Cooling Fan Low Speed |
| ENG EXH VLV | Not Used |
| FAN CNTRL | Cooling Fan Control |
| HDLP LO/HID | Low-Beam Headlamp |
| FOG LAMP | Air Conditioning Compressor |
| STRTR | Starter |
| PWR/TRN | Powertrain |
| FUEL PMP | Fuel Pump |
| PRK LAMP | Parking Lamps |
| REAR DEFOG | Rear Defogger |
| RUN/CRANK | Switched Power |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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