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: 1999
Instrument panel fuse block
| Fuse position | Circuit protected |
| 1 | Stop/TCC Switch, Buzzer, CHMSL, Hazard Lamps, Stop Lamps |
| 2 | Transfer Case |
| 3 | Courtesy Lamps, Cargo Lamp, Glove Box Lamp, Dome/Reading Lamps, Vanity Mirrors, Power Mirrors |
| 4 | Instrument Cluster, DRL Relay, Lamp Switch, Keyless Entry, Low Coolant Module, Illuminated Entry Module, DRAC (Diesel Engine) |
| 5 | Rear Comfort Controls |
| 6 | Cruise Control |
| 7 | Auxiliary Power Outlet |
| 8 | Crank |
| 9 | License Lamp, Parking Lamps, Taillamps, Roof Marker Lamps, Tailgate Lamps, Front Sidemarkers, Fog Lamp Relay, Door Switch Illumination, Fender Lamps, Headlamp Switch Illumination |
| 10 | Air Bag System |
| 11 | Wiper Motor, Washer Pump |
| 12 | A/C, A/C Blower, High Blower Relay |
| 13 | Power Amp, Rear Liftglass, Cigarette Lighter, Door Lock Relay, Power Lumbar Seat |
| 14 | 4WD Indicator, Cluster, Front and Rear Comfort Controls, Instrument Switches, Radio Illumination, Chime Module |
| 15 | DRL Relay, Fog Lamp Relay |
| 16 | Front and Rear Turn Signals, Back-up Lamps, BTSI Solenoid |
| 17 | Radio (Ignition) |
| 18 | 4WAL/VCM, ABS, Cruise Control |
| 19 | Radio (Battery) |
| 20 | PRNDL, Automatic Transmission, Speedometer, Check Gages, Warning Lights |
| 21 | Security/Steering |
| 22 | Not Used |
| 23 | Rear Wiper, Rear Wash Pump |
| 24 | Front Axle, 4WD Indicator Lamp, TP2 Relay (Gasoline Engine) |
| A | Power Door Lock, Six-Way Power Seat, Keyless Entry Module |
| B | Power Windows |
Underhood fuse/relay center
The underhood fuse/relay center is located in the rear of the engine compartment near the brake fluid reservoir.
| Name | Circuit protected |
| ECM-B | Fuel Pump, PCM/VCM |
| RR DEFOG | Rear Window Defogger (If Equipped) |
| IGN-E | Auxiliary Fan Relay Coil, A/C Compressor Relay, Hot Fuel Module |
| FUEL SOL | Fuel Solenoid (Diesel Engine) |
| GLOW PLUG | Glow plugs (Diesel Engine) |
| HORN | Horn, Underhood Lamps |
| AUX FAN | Auxiliary Fan |
| ECM-1 | Injectors, PCM/VCM |
| HTD ST-FR | Heated Front Seats |
| A/C | Air Conditioning |
| HTD MIR | Heated Outside Mirrors (If Equipped) |
| ENG-1 | Ignition Switch, EGR, Canister Purge, EVRV Idle Coast Solenoid, Heated O2, Fuel Heater (Diesel Engine), Water Sensor (Diesel Engine) |
| HTD ST-RR | Not Used |
| LIGHTING | Headlamp and Panel Dimmer Switch, Fog and Courtesy Fuses |
| BATT | Battery, Fuse Block Busbar |
| IGN-A | Ignition Switch |
| IGN-B | Ignition Switch |
| ABS | Anti-Lock Brake Module |
| BLOWER | Hi Blower and Rear Blower Relays |
| STOP/HAZ | Stoplamps |
| HEATED SEATS | Heated Seats (If Equipped) |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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