GMC Denali (2002) – fuse box diagram
Year of production: 2002
Instrument Panel Fuse Block
The fuse block access door is on the driver’s side edge of the instrument panel. Pull off the cover to access the fuse block.
| Name | Usage |
| HVAC 1 | Climate Control System |
| IGN 3 | Ignition, Power Seats |
| BRAKE | Anti-Lock Brake System |
| HTR A/C | Climate Control System |
| IGN 0 | PRND321 Display, Odometer, VCM/PCM |
| CRUISE | Cruise Control, Instrument Cluster |
| 4WD | Not Used |
| TURN | Exterior Lamps, Turn Signals, Hazard Lamps |
| RR WIPER | Rear Window Wiper |
| WS WPR | Windshield Wipers |
| SEO IGN | Special Equipment Option, Ignition |
| L BODY | Retained Accessory Power Relay |
| ILLUM | Interior Lamps |
| IGN 1 | Ignition, Instrument Panel |
| SEO ACCY | Special Equipment Option Accessory |
| CRANK | Starting System |
| AIR BAG | Air Bag |
| SEAT | Power Seat Circuit Breaker |
| MIR/LOCK | Power Mirrors, Power Door Locks |
| DR LOCK | Power Door Locks |
| RAP #1 | Retained Accessory Power Relay |
| LOCK | Power Door Locks |
| INT PRK | Interior Lamps |
| UNLOCK | Power Door Locks |
| DRV UNLOCK | Power Door Lock Relay |
| L DOOR | Power Door Lock Relay |
| PWR WDO | Power Window Circuit Breaker |
| RDO 1 | Audio System |
| LOCK | Power Door Lock Relay |
| UNLOCK | Power Door Lock Relay |
| RAP #2 | Rear Power Windows, Sunroof, Radio |
Center Instrument Panel Utility Block
The center instrument panel utility block is located underneath the instrument panel, to the left of the steering column.
| Name | Usage |
| SEO | Special Equipment Option |
| TRAILER | Trailer Brake Wiring |
| UPF | Upfitter |
| SPARE 2 | Not Used |
| SPARE 3 | Not Used |
| HTD ST | Heated Seats |
| PWR ST | Power Seats |
| PARK LAMP | Parking Lamps |
| INADV PWR | Interior Lamps Feed |
| SPARE | Not Used |
| SPARE | Not Used |
| *FRT PRK EXPT | Not Used |
| PUDDLE LP | Puddle Lamps |
| CTSY LP | Courtesy Lamps |
| VANITY | Headliner Wiring |
| BLANK | Not Used |
| SL RIDE | Not Used |
| CEL PHONE | Not Used |
Underhood Electrical Center
The underhood electrical center is located in the engine compartment near the battery on the driver’s side of the vehicle. Lift the cover for access to the fuse/relay block.
| Name | Usage |
| STUD #1 | Accessory Power/Trailer Wiring Feed/Load Leveling |
| ABS | Anti-Lock Brakes |
| IGN A | Ignition Switch |
| AIR | A.I.R. System |
| RAP #1 | Retained Accessory Power, Power Mirrors, Power Door Locks, Power Seat(s) |
| IGN B | Ignition Switch |
| RAP #2 | Retained Accessory Power/Rear Power Windows, Sunroof, Radio |
| STUD #2 | Accessory Power/Trailer Wiring Brake Feed |
| TRL R TRN | Right Turn Signal Trailer Wiring |
| TRL L TRN | Left Turn Signal Trailer Wiring |
| IGN 1 | Ignition, Fuel Controls |
| INJ-B | Ignition, Fuel Controls (Relay) |
| STARTER | Starter (Relay) |
| PARK LP | Parking Lamps |
| FRT HVAC | Climate Control System |
| STOP LP | Exterior Lamps, Stoplamps |
| ECM 1 | VCM/PCM |
| CHMSL | Center High Mounted Stoplamp |
| VEH STOP | Stoplamps, Cruise Control |
| TRL B/U | Backup Lamps Trailer Wiring |
| INJ-A | Fuel Controls, Ignition |
| RR HVAC | Rear HVAC |
| VEH B/U | Vehicle Backup Lamps |
| ENG 1 | Engine Controls, Canister Purge, Fuel System |
| ETC | Electronic Throttle Control |
| IGN E | A/C Compressor Relay, Rear Window Defogger, Daytime Running Lamps, A.I.R. System |
| B/U LP | Backup Lamps, Automatic Transmission Shift Lock Control System |
| ATC | Automatic Transfer Case |
| RR DEFOG | Rear Window Defogger, Heated Mirrors (Relay) |
| RTD | Autoride (Real Time Damping) |
| RR PRK | Right Rear Parking Lamps |
| ECM B | VCM/PCM |
| F/PMP | Fuel Pump (Relay) |
| O2 A | Oxygen Sensors |
| O2 B | Oxygen Sensors |
| LR PRK | Left Rear Parking Lamps |
| RR DEFOG | Rear Window Defogger, Heated Mirrors |
| HDLP | Headlamps (Relay) |
| TRL PRK | Parking Lamps Trailer Wiring |
| PRIME | Not Used |
| RT HDLP | Right Headlamps |
| DRL | Daytime Running Lamps (Relay) |
| HTD MIR | Heated Mirrors |
| LT HDLP | Left Headlamps |
| A/C | Air Conditioning |
| AUX PWR | Cigarette Lighter, Auxiliary Power Outlets |
| SEO 2 | Special Equipment Option Power, Power Seats |
| SEO 1 | Special Equipment Option Power |
| DRL | Daytime Running Lamps |
| A/C | A/C (Relay) |
| FOG LP | Fog Lamps |
| FOG LP | Fog Lamps (Relay) |
| RADIO | Audio System, Instrument Cluster, Climate Control System |
| CIGAR | Cigarette Lighter, Auxiliary Power Outlets |
| RT TURN | Right Turn Signals |
| BTSI | Automatic Transmission Shift Lock Control System |
| LT TURN | Left Turn Signals |
| FR PRK | Front Parking Lamps, Sidemarker Lamps |
| W/W PMP | Windshield Washer Pump |
| HORN | Horn (Relay) |
| IGN C | Ignition Switch, Fuel Pump, PRND321 Display, Crank |
| RDO AMP | Radio Amplifier |
| HAZ LP | Exterior Lamps, Hazard Lamps |
| EXP LPS | Not Used |
| HORN | Horn |
| CTSY LP | Interior Lamps |
| RR WPR | Rear Wipers |
| TBC | Body Control Module, Remote Keyless Entry, Headlamps |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.