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Fuse box diagram (fuse layout), location and assignment of fuses and relays Cadillac Escalade (GMT 400; 1999, 2000).
Checking and Replacing Fuses
The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links in the wiring itself. This greatly reduces the chance of fires caused by electrical problems.
Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating.
If you ever have a problem on the road and don’t have a spare fuse, you can borrow one that has the same amperage. Just pick some feature of your vehicle that you can get along without – like the radio or cigarette lighter – and use its fuse if it is the correct amperage. Replace it as soon as you can.
Note
- You can remove fuses with a fuse extractor. The fuse extractor is mounted to the fuse block access door. To remove fuses, if you don’t have a fuse extractor, hold the end of the fuse between your thumb and index finger and pull straight out.
- You may have spare fuses attached to the inside of the fuse block access door. These can be used to replace a bad fuse. However, make sure that it is the correct amperage.
- Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.
- Do not repair fuses and never replace a blown fuse with one that has a higher amp rating. This can cause damage to the electrical system and fire.
- Never replace a broken fuse with anything other than a new fuse. Use always an intact fuse of the same color.
- If a fuse blows again contact authorized services.
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.
| № | Description |
|---|---|
| 1 | Stop/TCC Switch, Buzzer, CHMSL, Hazard Lamps, Stoplamps |
| 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 |
| 5 | Rear Comfort Controls |
| 6 | Cruise Control |
| 7 | Auxiliary Power Outlet |
| 8 | Crank |
| 9 | License Lamp, Parking Lamps, Taillamps, 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, AJC 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 | Auxiliary Power, Headlamp Delay |
| 23 | Rear Wiper, Rear Washer Pump |
| 24 | Front Axle, 4WD Indicator Lamp, TP2 Relay |
| A | Power Door Lock, Six-Way Power Seat, Keyless Entry Module |
| B | Power Windows |
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Underhood Fuse/Relay Center
The fuse box is located in the rear of the engine compartment near the brake fluid reservoir. Move the retainer clips for the cover to access the fuse block.
| Fuse | Description |
|---|---|
| ECM-B | Fuel Pump, PCM/VCM |
| RR DEFOG | Rear Window Defogger |
| IGN-E | Auxiliary Fan Relay Coil, A/C Compressor Relay, Hot Fuel Module |
| FUEL SOL | Not Used |
| GLOW PLUG | Not Used |
| HORN | Horn, Underhood Lamp |
| AUX FAN | Auxiliary Fan |
| ECM-1 | Injectors, PCM/VCM |
| HTD ST-FR | Heated Front Seats |
| A/C | Air Conditioning |
| HTD MIR | Heated Outside Mirrors |
| ENG-1 | Ignition Switch, EGR, Canister Purge, EVRV Idle Coast Solenoid, Heated O2 |
| HTD ST-RR | Heated Rear Seats |
| AUX B | Trailer Wiring |
| AUX A | SEO Wiring |
| 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 |
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