The Cadillac Seville from 1994 was a luxury sedan known for its comfort, style, and advanced features during its time. Its electrical system, which includes the fuse box and relay components, played a critical role in ensuring its functionality.
The fuse box in the Cadillac Seville 1994 housed various fuses, each designed to protect specific electrical circuits throughout the vehicle. These circuits powered essential components such as the engine control module, lighting systems, climate control, infotainment features, and more. Fuses were crucial as they would break the circuit in case of an electrical overload or short circuit, preventing damage to associated systems.
Relays in the Cadillac Seville acted as electrically operated switches that controlled high-current circuits. They facilitated the precise activation and deactivation of functions like the starter motor, fuel pump, air conditioning compressor, and power windows or seats. Efficient power management through relays ensured that each component received the necessary voltage for optimal performance.
Regular inspection and maintenance of the fuse box and relays were essential to ensure the Cadillac Seville 1994 operated smoothly. This involved checking fuses for signs of wear or damage, ensuring relay connections were secure, and promptly addressing any electrical issues that arose. Proper care of these components helped maintain the vehicle’s electrical integrity, enhancing safety and driving satisfaction in the Cadillac Seville 1994.
MUST READ: DYI – How to Check Car Fuses?
(1994) Cadillac Seville fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Cadillac Seville 1994 fuse assignment
- Cigar lighter / power outlet fuses in the Cadillac Seville are the fuse №. 23 in the Engine compartment fuse box and fuses №. 58 and 65 in the Rear Underseat fuse box.
Year of production: 1994
Engine compartment fuse block
| Fuse name | Ampere rating | Usage |
| DISTR | 20A | IGNITION CONTROL MODULE |
| SIR | 20A | DIAGNOSTIC/ENERGY RESERVE MODULE (DERM), DUAL POLE ARMING SENSOR |
| PCM (IGN) | 10A | POWERTRAIN CONTROL MODULE (PCM), PASSKey DECODER MODULE |
| INJ | 10A | 1, 4, 6, AND 7 FUEL INJECTORS |
| INJ | 10A | 2, 3, 5 AND 8 FUEL INJECTOR |
| IGN | 10A | A/C REFRIGERANT PRESSURE SWITCH, TRANSAXLE RANGE SWITCH, STOP/BTSI/CRUISE BRAKE SWITCH, INSTRUMENT PANEL CLUSTER, KEYLESS ENTRY MODULE , DIAGNOSTIC/ENERGY RESERVE MODULE (DERM), CORNERING LIFHTS, TURN/HAZARD SWITCH ASSY., CHIME MODULE, HEADLIGHT SWITCH, TWLIGHT SENTINEL/DRL MODULE |
| FUEL | 20A | FUEL PUMP, POWERTRAIN CONTROL MODULE (PCM) |
| PCM (BAT) | 10A | POWERTRAIN CONTROL MODULE (PCM) |
| RTD (BAT) | 20A | ROAD SENSING SUSPENSION (RSS) MODULE |
| A/C COMP | 10A | A/C COMPRESSOR CLUTCH |
| HDLPS | 30A | HEADLIGHT DIMMER SWITCH, HEADLIGHT RELAY “D” (ENGINE COMP. MICRO RELAY CENTER), DRL HEADLIGHT RELAY “E” (WITH DAYTIME RUNNING LIGHTS), POWERS C13 |
| STOP LP | 20A | STOP/BTSI/CRUISE SWITCH, STOPL LIGHTS SWITCH CAPACITOR |
| TURN/HAZ | 20A | HAZARD FLASHER, TURN FLASHER RELAY, TURN FLASHER MODULE |
| DRL (CANADA) | 10A | DAYTIME RUNNING LIGHTS (CANADA) |
| DRL (CANADA) | 10A | LEFT AND RIGHT LO BEAM HEADLAMP |
| HTD W/S | 10A | HEATED WINDSHIELD CONTROL MODULE |
| L HDLP LO | 10A | LEFT LO BEAM HEADLAMP |
| R HDLP LO | 10A | RIGHT LO BEAM HEADLAMP |
| L HDLP HI | 10A | LEFT HI BEAM HEADLAMP |
| R HDLP HI | 10A | RIGHT HI BEAM HEADIAMP |
| IGN 3 | 10A | REAR DEFOGGER RELAY, ELECTRONIC LEVEL CONTROL (ELC), HEATED WINDSHIELD, HEATER AND A/C PROGRAMMER, CRUISE CONTROL |
| COOLING FAN | 10A | EXTENDED TRAVEL BRAKE SWITCH, POWERTRAIN CONTROL MODULE (PCM), COOLING FAN RELAYS 1,2 AND 3, FRONT AND REAR HEATED OXYGEN SENSOR |
| TRANS/ECS | 10A | OVERSPEED ALERT MODULE (EXPORT), POWER STEERING PRESSURE SWITCH, EXHAUST GAS RECIRCULATION (EGR) VALVE, TRANSAXLE SHIFT SOLENOIDS A&B, EVAPORATIVE EMISSION CONTROL SOLENOID, POWERTRAIN CONTROL MODULE (PCM), TORQUE CONVERTER CLUTCH SOLENOID, TCC BRAKE SWITCH |
Maxi Fuse block
LH MAXI FUSE BLOCK
| Fuse | Ampere rating [A] | Usage | |
| FUSE 1 | STRG1-2 | 50A | RETAINED ACCESSORY POWER (RADIO/WIPERS), STARTER, TRUNK COMR FUSE B11 AND B13 |
| FUSE 2 | BODY | 60A | ENGINE COMP B11, ROAD SENSING SUSPENSION, FOG LIGHTS, TRUNK COMP FUSE C1, C3, C5, C7, C9 AND C11, TRUNK COMP. FUSE C13 (EXPORT), REAR FOG LIGHT (EXPORT) |
| CIRCUIT BREAKER 3 | SEAT | 30A | LEFT AND RIGHT POWER SEAT SWITCHES, LEFT AND RIGHT LUMBAR RELAYS, POWER DOOR LOCKS, KEYLESS ENTRY MODULE, HORNS |
| FUSE 4 | IPC | 30A | POWERTRAIN CONTROL MODULE (PCM), ELECTRONIC CLIMATE CONTROL, RAP/ILLUMINATED ENTRY MODULE, INSTRUMENT PANEL CLUSTER, PASSKey DECODER MODULE, THEFT DETERRENT |
| FUSE 5 | HVAC | 60A | LEFT AND RIGHT HEATED SEATS, ELECTRONIC LEVEL CONTROL (ELC), TRUNK LID PULL DOWN, POWER ANTENNA, REAR DEFOGGER, LEFT AND RIGHT MIRROR DEFOGGERS |
| FUSE 6 | STRG 3 | 60A | RETAINED ACCESSORY POWER (SUNROOFtPOWER WINDOWS), ENGINE COW FUSES D1, D3, D5, TRUNK COW FUSES A1, A3, A5, A7, A9 |
RH MAXI FUSE BLOCK
| Fuse | Ampere rating [A] | Usage | |
| CIRCUIT BREAKER 1 | DAB | 30A | RETAINED ACCESSORY POWER (RAP) (SUNROOF/POWER WINDOWS) |
| FUSE 2 | RADIO | 30A | DELCO-BOSE SPEAKERS, RADIO CONTROL HEAD, REMOTE RADIO RECIVER |
| FUSE 3 | COIL | 50A | COOLING FANS |
| FUSE 4 | HVAC BLOWER (BLOWER) | 40A | HVAC POWER MOTOR, A/C COMPRESSOR |
| FUSE 5 | ABS (BRAKES) | 50A | BRAKE PRESSURE MODULATOR VALVE |
| FUSE 6 | LAMPS | 50A | TURN FLASHER MODULE, HAZARD FLASHER, STOP/BTS/CIRCUISE BRAKE SWITCH, PARKING LIGHTS, DAY TIME RUNNING LIGHTS (CANADA), ENGINE COMP. FUSES B1, B3 AND B5, TRUNK COMP. FUSES D11, D13 |
Rear Compartment Fuse Block
| Fuse name | Ampere rating [A] | Usage |
| CRANK | 10A | RAP/ILLUMINATED ENTRY MODULE, DIAGNOSTIC ENERGY RESERVE MODULE (DERM), TRANSAXLE RANGE SWITCH (NSSS) |
| IGN 1 | 10A | FUEL LEVEL SENSOR, ELECTROCHROMIC MIRROR, RAP/ILLUMINATED ENTRY MODULE, THEFT DETERRENT MODULE, KEYLESS ENTRY MODULE, TURN FLASHER RELAY “F” TRUNK COMP. MICRO RELAY CENTER, CATALYTIC CONVERTER ALARM MODULE (EXPORT) |
| HDLP WASH (EXPORT) | 30A | HEADLIGHT WASHER MODULE |
| SUSP (IGN) | 10A | ROAD SENSING SUSPENSION (RSS) MODULE |
| IPC (IGN) | 10A | INSTRUMENT PANEL CLUSTER |
| CNSL SW | 10A | REAR BLOWER RELAY “E”, CONSOLE SWITCH |
| ABS | 10A | ELECTRONIC BRAKE AND TRACTION CONTROL MODULE (EBTCM) |
| WIPER | 30A | WIPER/WASHER SWITCH |
| RAD (IGN) | 10A | REMOTE RADIO RECEIVER |
| R DEFOG | 30A | REAR DEFOGGER |
| HTD MIRR | 10A | LT AND RT POWER MIRROR-DEFOGGER |
| IPC (BATT) | 10A | INSTRUMENT PANEL CLUSTER |
| THEFT | 10A | PASS-key DECODER MODULE, THEFT DETERRENT RELAY “D” (TRUNK COMP. RELAY CENTER), THEFT DETERRENT MODULE |
| HVAC/DABI | 10A | HEATER AND NC PROGRAMMER, RAP/ILLUMINATED ENTRY MODULE |
| REAR FOG | 10A | REAR FOG LIGHTS RELAY A (EXPORT) |
| FOG LP | 10A | FOG LIGHTS RELAY A AND F |
| CNSL FAN | 10A | REAR BLOWER MOTOR, REAR BLOWER RELAY |
| CIGAR | 20A | REAR CIGAR LIGHTERS, FRONT CIGAR LIGHTER SEVILLE ONLY), FRONT CIGARETTE LIGHTER, CHIME MODULE |
| BODY 2 | 10A | POWER MIRROR SWITCH, RAP RELAY, LOCK-OUT INHIBIT RELAY “B” (TRUNK COMP. 1 MICRO RELAY CENTER), PANEL LIGHTS INHIBIT RELAY “F” (TRUNK COMP 3 MICRO RELAY CENTER) (EXPORT), COURTESY LIGHTS RELAY “C” (TRUNK COMP. 2 MICRO RELAY CENTER), RAP RELAY “E” (TRUNK COMP 2 MICRO RELAY CENTER), KEYLESS ENTRY MODULE, TRUNK LAMP, SEAT BELT RETRACTIO SOLENOIDS (ELDORADO ONLY) |
| BODY 1 | 10A | REAR DOOR LOCKS SWITCHES (SEVILLE ONLY), FRONT DOOR LOCK SWITCHES, GLOVE BOX LAMP, LT AND RT FOOTWELL COURTESY LAMPS, HEADLIGHT SWITCH |
| READ LP | 10A | LT AND RT FRONT HEADER LAMP, LT AND RT VANITY MIRRORS, GARAGE DOOR OPENER, LT AND RT REAR HEADER LAMPS |
| L PRK LP | 10A | LT REAR RT FRONT HEADER LAMP, LT FRONT PARK/TURN LAMPS, FRONT AND REAR LEFT SIDE MARKER LAMPS, RADIO CONTROL HEAD, HEADLIGHT SWITCH, INSTRUMENT PANEL CLUSTER |
| R PRK LP | 10A | RT TAIL/STOP TURN LAMPS, RT FRONT AND REAR SIDE MARKER LAMPS, RT FRONT PARK AND TURN LAMPS, ENGINE COMP LAMP LICENCE PLATE LAMPS |
| RAD (BAT) | 10A | RADIO |
| ANT/TRK | 20A | TRUNK LID PULL DOWN MOTOR, POWER ANTENNA |
| ELC | 30A | ELECTRONIC LEVEL CONTROL (ELC) |
| R HTD SEAT | 10A | PASSENGERS HEATED SEAT |
| L HTD SEAT | 10A | DRIVERS HEATED SEAT |
Conclusion
For owners and enthusiasts of classic Cadillac Seville 1994, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Cadillac’s craftsmanship and innovation in the automotive industry during that era.
