1977-1982 Cadillac DeVille Fuse Box Diagram
Fuse Block
| No. | A | Description |
|---|---|---|
| 1 | 5 | '77-'79: Rheostat controlled instrument panel lights |
| 10 | '80-'82: Front side marker, cornering and ash tray lights | |
| 2 | 3 | Cruise control, DFI brake switch ('80-'82) |
| 3 | 10 | '77-'79: Cornering, side marker and opera lights, right door ash tray light, instrument panel ash tray light |
| 5 | '80-'82: Rheostat controlled instrument panel lights | |
| 4 | 30 | '77-'79: Circuit Breaker: Power windows and sunroof |
| 5 | 10 | Back-up lights |
| 6 | 20 | Air conditioner compressor feed, amplifier feed and relay coil feed, alternator telltale, ECC programmer and power module, alternator indicator and rear window defogger relay coil |
| 7 | 10 | Antenna switch feed |
| 8 | 20 | Turn signal lights |
| 9 | 25 | Opera lamps, tail lights, license light, rear side marker |
| 10 | 20 | Stop light switch, hazard warning flasher, ECC control head ('80-'82) |
| 11 | 20 | Oil pressure telltale, low brake telltale, coolant temperature telltale, fuel gauge, downshift switch, seat belt warning buzzer and light |
| 12 | 20 | Key warning buzzer, engine temperature telltale, glove box light, instrument panel cigar lighter and courtesy lights |
| 13 | 25 | '77-'79: Automatic Temperature Control blower |
| 14 | 30 | '77-'79: Circuit Breaker: Power door locks, power seats, horn, trunk release |
| 15 | 7.5 | '77-'79: Radio |
| 10 | '80-'82: Antenna relay coil | |
| 16 | 20 | '77-'79: Electronic fuel injection |
| 17 | 20 | Body courtesy lights, cigar lighters |
| 18 | 25 | Windshield wipers and washer, washer fluid level telltale light |
| 19 | 25 | Rear defogger |
Circuit Breaker:
- Headlights (Twilight Sentinel) — Integral with headlight switch
- Windshield Wiper — Integral with windshield wiper switch
- '77-'79: Sunroof — 25 amp. On body bracket at upper right corner of fuse block
- '80-'82: Rear Defogger — Circuit breaker located on lower steering column cover reinforcement.
Fusible Link:
- Accessories & Body Feed — 16 gauge fusible link located in black/red stripe wire at starter
- Ignition — 16 gauge fusible link located in red wire at starter solenoid
- Headlights — 18 gauge fusible link located in yellow wire at starter
- Charging — 16 gauge fusible link located in red/white stripe wire at junction block
In-Line Fuse:
- Vanity Mirror — 2 amp. fuse located behind mirror
- '77-'79: EFI Fuel Pump — 10 amp. fuse located left of fuel injection electronic control unit brown wire
- Theft Deterrent — 20 amp. fuse for lights located in yellow wire above radio. 25 amp. fuse for horn located in black/red stripe wire above radio
- '80-'82: Trunk Lid Pull Down — One 20 amp. fuse is located behind right hand fabric rear end panel inside trunk
Passenger Compartment Fuse Box No.2 ('80-'82)
| No. | A | Description |
|---|---|---|
| 1 | 3 | Fuel injector |
| 2 | 3 | Fuel injector |
| 3 | 3 | Fuel pump cranking circuit |
| 4 | 20 | ECS battery |
| 5 | 10 | MDA ignition |
| 6 | 10 | Fuel pump |
| 7 | 15 | ECS ignition |
| 8 | - | - |