The fifth-generation Cadillac Seville was manufactured from 1998 to 2004. In this guide, you can access fuse box diagrams for each model year (1998, 1999, 2000, 2001, 2002, 2003, and 2004).
These diagrams provide details about where the fuse panels are situated inside the car.
They also explain which specific fuses and relays control different electrical components. This information is crucial for understanding how to locate, check, and replace fuses that may affect various systems in your Cadillac Seville, ensuring optimal operation of its electrical systems.
Table of Contents
Cigar lighter / power outlet fuses in the Cadillac Seville are the fuse No.23 in the Engine compartment fuse box and fuses No.58 and 65 in the Rear Underseat fuse box.
Engine compartment
| Fuse Number | Description |
|---|---|
| 1 | ALDL |
| 2 | Accessory |
| 3 | Windshield Wipers |
| 4 | Not Used |
| 5 | Headlamp Low Beam Left |
| 6 | Headlamp Low Beam Right |
| 7 | Instrument Panel |
| 8 | Powertrain Control Module Battery |
| 9 | Headlamp High Beam Right |
| 10 | Headlamp High Beam Left |
| 11 | Ignition 1 |
| 12 | 1998-1999: Not Used 2000-2004: Fog Lamps |
| 13 | 1998-1999: Not Used 2000-2004: Transmission |
| 14 | Cruise Control |
| 15 | 1998-1999: Oxygen Sensor A 2000-2004: Coil MDL |
| 16 | Injector Bank #2 |
| 17 | Not Used |
| 18 | 1998-1999: Powertrain Control Module Ignition 2000-2004: Not Used |
| 19 | 1998-1999: Direct Ignition System 2000-2001: Powertrain Control Module Ignition |
| 20 | 1998-1999: Oxygen Sensor B 2000-2004: Oxygen Sensor |
| 21 | Injector Bank #1 |
| 22 | Auxiliary Power (Cltr 2) |
| 23 | Cigar Lighter |
| 24 | 1998-1999: Fog Lamps/Daytime Running Lamps 2000-2004: Daytime Running Lamps |
| 25 | Horn |
| 26 | Air Conditioner Clutch |
| 43 | 1998-1999: Export Brake 2000: Antilock Brake System 2001-2004: Not Used |
| 44 | 1998-1999: Antilock Brake System Solenoid 2000: Air Pump 2001-2004: Antilock Brake System |
| 45 | 1998-1999: Antilock Brake System Motor 2000-2004: Air Pump |
| 46 | Cooling Fan Secondary |
| 47 | Cooling Fan Primary |
| 48-52 | Spare Fuses |
| 53 | Fuse Puller |
| Circuit breaker | |
| 41 | Starter |
| 42 | 1998-2000: Not Used 2001-2004: Export Use |
| Relays | |
| 27 | Headlamp High Beam |
| 28 | Headlamp Low Beam |
| 29 | Fog Lamps |
| 30 | Daytime Running Lamps |
| 31 | Horn |
| 32 | Air Conditioner Clutch |
| 33 | Not Used |
| 34 | Accessory |
| 35 | 1998-1999: Starter 2 2000-2004: Not Used |
| 36 | Starter 1 |
| 37 | Cooling Fan 1 |
| 38 | Ignition 1 |
| 39 | Cooling Fan Series/Parallel |
| 40 | Cooling Fan 2 |
Passenger compartment (Rear Underseat)
| Fuse Number | Description |
|---|---|
| 1 | Fuel Pump |
| 2 | Heater, Ventilation, Air Conditioner Blower |
| 3 | Memory Seat, Tilt and Telescoping Steering |
| 4 | 1998-1999: Assembly Line Diagnostic Link 2000-2001: Not Used 2002-2004: SDAR (XM Satellite Radio) |
| 5 | Driver Door Module |
| 6 | Heated Seat Left Rear |
| 7 | Power Tilt and Telescoping Steering |
| 8 | Supplemental Inflation Restraint |
| 9 | Not Used |
| 10 | Lamps Park Right |
| 11 | Fuel Tank Ventilation Solenoid |
| 12 | Ignition 1 |
| 13 | Lamps, Parking Left |
| 14 | Interior Lamp Dimmer Module |
| 15 | Navigation |
| 16 | Heated Seat Left Front |
| 17 | Export Lighting |
| 18 | Rear Door Modules |
| 19 | Stoplamps |
| 20 | Neutral Safety Back-up |
| 21 | Audio |
| 22 | Retained Accessory Power for Sunroof |
| 23 | Not Used |
| 24 | Not Used |
| 25 | Passenger Door Module |
| 26 | Fuel Door/Trunk Release (Body) |
| 27 | Interior Lamps |
| 28 | Rear HVAC Blower |
| 29 | Ignition Switch |
| 30 | Not Used |
| 31 | Heated Seat Right Front |
| 32 | 1998-2002: Continuous Variable Road Sensing Suspension 2003-2004: Magnetic Ride Control |
| 33 | Heating, Ventilation, Air Conditioning |
| 34 | Ignition 3 Rear |
| 35 | Antilock Braking System |
| 36 | Turn Signal/Hazard |
| 37 | Heated Seat Right Rear |
| 38 | Dash Integration Module |
| 60 | Park Brake |
| 61 | Rear Defog |
| 62 | 1998-1999: Not Used 2000-2004: Export Brake |
| 63 | Audio Amplifier |
| 64 | ELC Compressor/Exhaust |
| 65 | Cigar Lighter |
| 66 | Not Used |
| 70-74 | Spare Fuses |
| 75 | Fuse Puller |
| Circuit breaker | |
| 56 | Power Seats |
| 57 | Power Windows |
| 58 | Cigarette Lighter |
| 59 | Rear Defog |
| Relays | |
| 39 | Fuel Pump |
| 40 | Parking Lamps |
| 41 | Ignition 1 |
| 42 | Park Brake A |
| 43 | Park Brake B |
| 44 | Park Shift Interlock |
| 45 | Reverse Lamps |
| 46 | Retained Accessory Power for Sunroof |
| 47 | Rear HVAC Blower |
| 48 | 1998-2002: Suspension Dampers 2003-2004: Not Used |
| 49 | Ignition 3 |
| 50 | Fuel Tank Door Release |
| 51 | Interior Lamps |
| 52 | Trunk Release |
| 53 | Front Courtesy Lamps |
| 54 | Rear Courtesy Lamps |
| 55 | Electronic Level Control Compressor |
Also Read: What to do before changing fuse in a car? 10 Easy Steps
Frequently Asked Questions (FAQs)
My 12V power outlets (cigarette lighter/accessory ports) are not working. Which fuse should I check?
The accessory power outlets are usually protected by fuses located in the Rear Seat Fuse Block.
Action: Check the fuses labeled “ACCY,” “CIGAR,” or “P/OUTLET” (often 15 Amp or 20 Amp fuses). If the fuse blows immediately upon replacement, the socket or an attached accessory is shorting.
The radio, amplifier, or Bose sound system has gone dead. Where are these fuses located?
Fuses for the entire audio and communication system are typically located in the Rear Seat Fuse Block.
Action: Check the fuses labeled “RADIO,” “AMP,” or “ONSTAR” (usually low-amperage fuses, 5 Amp to 15 Amp).
My power windows or door locks have failed. Which fuses protect them?
Fuses for the door control modules and power windows are often located in the Rear Seat Fuse Block.
Action: Check the fuses labeled “DR LOCKS,” “PWR WINDOWS,” or “DOOR MODULE” for the side of the vehicle experiencing the failure. These are usually 20 Amp to 30 Amp fuses.
The A/C or heater blower motor is completely dead. Which fuse is for the blower fan?
The blower motor circuit is protected by a high-amperage fuse in the Engine Compartment Fuse Block.
Fuse Type: Check the large fuse labeled “BLOWER” or “HVAC BLOWER MOTOR” (often 30 Amp or 40 Amp). If the fuse is blown, the underlying cause may be a failed blower motor resistor or a seized motor.
My headlights or daytime running lights (DRLs) have stopped working. Which fuse should I check?
The lighting circuits are protected by fuses and relays in the Engine Compartment Fuse Block.
Action: Check the fuses and relays specifically labeled “H/LP LO” (Low Beam), “H/LP HI” (High Beam), or “DRL”. If the fuse is intact, the issue may be a faulty relay or a separate fuse for the lighting module.