Cadillac Seville | 1998-2004

Locate Cadillac Seville fuse box diagrams for 1998–2004 models with relay assignments, fuse locations, panel layouts, and electrical system details. This article covers the fifth-generation Cadillac Seville, produced from 1998 to 2004, and includes fuse box diagrams for Cadillac Seville 1998, 1999, 2000, 2001, 2002, 2003 and 2004, along with details about the location of the fuse panels inside the vehicle and a clear explanation of the assignment of each fuse and relay (fuse layout).

Engine Compartment

Fuse Box Location

The front fuse box is positioned at the front of the engine compartment, between the windshield washer fluid reservoir and the power steering fluid reservoir on the passenger side. Raise the cover to access it.

Fuse Box Diagram

Fuses

Assignment of the fuses in the engine compartment

Fuse Data
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No.AmpsDescription
110A2001-2004: Data Link Connector (DLC), Valet Switch
210AOutside Moisture Sensor, Windshield Wiper/Washer Switch, Cellular Telephone Docking Station (1998-2000)
330AWindshield Wiper Motor
4—–
515ALeft Headlamp (Low Beam)
615ARight Headlamp (Low Beam)
715AIgnition Key Cylinder Lamp, Instrument Panel Cluster (IPC), Instrument Panel Integration Module (IPM), Theft Deterrent Module (1998-2000)
810APowertrain Control Module (PCM), Theft Deterrent Module (2001-2004)
910ARight Headlamp (High Beam)
1010ALeft Headlamp (High Beam)
1110A2001-2004: Evaporative Emissions (EVAP) Canister Purge Solenoid, Exhaust Gas Recirculation (EGR) Valve, Mass Air Flow (MAF) Sensor
1998-2000: Automatic Transaxle, Evaporative Emission (EVAP) Canister Purge Solenoid Valve, Exhaust Gas Recirculation (EGR) Valve, Mass Air Flow (MAF) Sensor, Power Steering Pressure (PSP) Switch, Powertrain Control Module (PCM)
1210A2001-2004: Fog Lamp Relay
1310A2001-2004: 1-2 Shift Solenoid (1-2 SS) Valve, 2-3 Shift Solenoid (2-3 SS) Valve, Torque Converter Clutch (TCC) Solenoid Valve
1410ACruise Control Module
1520A / 10A2001-2004 (20A): Ignition Control Module (ICM) Bank №1, Ignition Control Module (ICM) Bank №2
1998-2000 (10A): Heated Oxygen Sensor (H02S) Bank 1 Sensor 2 (Early Production Only), Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
1610AFuel Injector №2, 3, 5, 8
17—–
1810A1998-2000: Powertrain Control Module (PCM)
1920A2001-2004: Powertrain Control Module (PCM)
1998-2000: Ignition Control (IC) Module
2010AHeated Oxygen Sensor (H02S) Bank 1 Sensor 2, Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
2110AFuel Injector №1, 4, 6, 7
2220AAuxiliary Power Outlet
2320ACigar Lighter, Rear Cigar Lighter
2415AFog Lamp Relay, Daytime Running Lamp (DRL) Relay
2515AHorn Relay
2615AA/C Compressor Clutch Relay
4330A1998-2000 (Export): Power Brake Booster Pump Relay
4450A / 30A2001-2004 (50A): Electronic Brake Control Module (EBCM)
1998-2000 (30A): Electronic Brake and Traction Control Module (EBTCM)
4550A / 40A2001-2004 (50A): Secondary Air Injection Pump, Secondary Air Injection Pump Relay
1998-2000 (40A): Electronic Brake and Traction Control Module (EBTCM)
4630ACooling Fan Relay №1
4730ACooling Fan Relay №2, Cooling Fan Series/Parallel
48—–
49—–
50—–
51—–
52—–

Circuit Breakers

Assignment of the circuit breakers in the engine compartment

Fuse Data
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No.TypeAmpsDescription
41Circuit breaker30AStarter Solenoid Relay
42Circuit breaker30A(Export): Headlamp Washer Pump Motor

Relays

Assignment of the relays in the engine compartment

Fuse Data
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No.TypeDescription
R27RelayHigh Beam
R28RelayLow Beam
R29RelayFog Lamp
R30RelayDaytime Running Lamp (DRL)
R31RelayHorn
R32RelayA/C Compressor Clutch
R33Relay–
R34RelayAccessory (Windshield Wiper)
R35Relay1998-2000: Starter Solenoid
R36RelayStarter Solenoid
R37RelayCooling Fan №1
R38RelayIgnition (Fuse №: “11”, “14”, “16”, “18”, “19”, “20”, “21”)
R39RelayCooling Fan Series/Parallel
R40RelayCooling Fan №2

Passenger Compartment (Front)

Fuse Box Location

The steering column fuse block is located at the left front of the passenger compartment, near the base of the steering column.

Fuse Box Diagram

Fuses

Assignment of the fuses in the front under steering column fuse box

Fuse Data
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No.AmpsDescription
12ASteering Wheel Controls Illumination
22ASteering Wheel Audio Controls
32ASteering Wheel Cruise Control
42AHom Switch

Passenger Compartment (Rear)

Fuse Box Location

The rear Bussed Electrical Center is located beneath the rear seat on the driver’s side. The rear seat cushion must be removed in order to access the BEC.

Fuse Box Diagram

Fuses

Assignment of the fuses in the rear underseat fuse box

Fuse Data
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No.AmpsDescription
120AFuel Pump Relay
230ABlower Motor Control Processor
310AAdaptive Seat Lumbar Module (Driver, Front Passenger), Seat Lumbar Switch (Driver), Memory Seat Module (MSM), Seat Adjuster Switch (Driver), Steering Column Tilt/Telescoping Module
45A / 10A2002-2004 (5A): Digital Radio Receiver (SDAR)
1998-2000 (10A): Data Link Connector (DLC), Valet Switch
510ADriver Door Module (DDM)
610AHeated Seat Module (Left Rear)
730ASteering Column Tilt/Telescoping Module
815ADriver Inflatable Restraint Side Impact Sensing Module (SISM), Inflatable Restraint Sensing and Diagnostic Module (SDM), Passenger Inflatable Restraint Side Impact Sensing Module (SISM)
9—–
1015ATail Lamps (Right), Marker Lamp (Right Front), Park/Tum Signal Lamp (Right Front), Rear Compartment Relay Center
1110AEvaporative Emission (EVAP) Canister Vent Solenoid
1210AABS/TCC/Cruise Release Switch, Instrument Panel Cluster (IPC), Rear Compartment Relay Center, Rear Integration Module (RIM), Turn Signal Switch, Steering Wheel Controls (2001-2004)
1315ATail Lamps (Left), Marker Lamp (Left Front), Park/Tum Signal Lamp (Left Front), Rear Compartment Relay Center
1410ADash Integration Module (DIM), Generator (2001-2004), Hazard Switch Assembly (1998-2000), Multi-function Lever (1998-2000), License Lamps (1998-2000), Underhood Lamp (1998-2000)
1510A2002-2004: Traffic Information Receiver (VICS), Radio
1998-2001: Navigation Data Processor, Navigation Display Head, Rear Compartment Relay Center
1610AHeated Seat (Left Front)
1715AExport: Standing Lamp Relay, Rear Fog Lamp Relay, Position Lamp Relay (Left), Position Lamp Relay (Right), Daytime Running Lamp (DRL) Relay
1810ALeft Rear Door Module (LRDM), Right Rear Door Module (RRDM)
1915AStop Lamp Switch
2010AParking Lamps Relay, Reverse Relay
2115ACellular Telephone Module, Remote Playback Device (CD Changer), Radio
2220ARetained Accessory Power for Sunroof
23—–
24—–
2510AFront Passenger Door Module (FPDM)
2615AFuel Door Release Relay, Trunk Release Relay
2710AInterior Lamps Relay (Footwell Courtesy Lamps, Door Courtesy Lamps, I/P Compartment Lamp, Overhead Console, Reading Lamps, Rear Compartment Lamp, Vanity Mirror Lamps, Rear Integration Module (RIM))
2810ARear HVAC Blower Relay
2915AIgnition Switch, Dash Integration Module (DIM), Rear Integration Module (RIM), Remote Control Door Lock Receiver (RCDLR (2001-2004)), Remote Keyless Entry (RKE) Module (1998-2000)
30—–
3110AHeated Seat (Right Front)
3210A / 20A10A: Automatic Level Control (ALC) Module, Electronic Suspension Control (ESC) Module (2002-2004), Damper Relay, Continuously Variable Road Sensing Suspension (CVRSS) Module (2001)
2002-2004 (20A): Electronic Suspension Control (ESC) Module
3310A2001-2004: Recirculation Actuator, Air Temperature Actuator (Left/Right), Air Temperature Sensor (Inside), Mode Actuator, Mode Actuator (Auxiliary), HVAC Control Assembly (Auxiliary), Reverse Lockout Solenoid
1998-2000: Air Inlet Actuator, Driver Air Mix Actuator, Inside Air Temperature Sensor, Mode Actuator, Passenger Air Mix Actuator, PRNDL Lamp, Rear Blower Switch, Rear Mode Actuator
3410AAdaptive Seat Lumbar Module (Driver/Front Passenger), Automatic Level Control (ALC) Module, Continuously Variable Road Sensing Suspension (CVRSS) Module, Instrument Panel Integration Module (IPM), Heated Seat Module (Driver/Front Passenger/Rear Right/Left), Automatic Day/Night Mirror (1998-2000)
3510A2001-2004: Electronic Brake Control Module (EBCM)
1998-2000: Electronic Brake and Traction Control Module (EBTCM)
3615AHazard Switch
3710AHeated Seat (Right Rear)
3810ADash Integration Module (DIM), Generator (2001-2004), Battery Voltage Sensor (1998-2000)
6020APark Brake Release Relay (R42, R43)
6140ARear Window Defogger Relay
6225A2001-2004: Power Brake (P/B) Booster Pump Relay
6330ARadio Amplifier, Radio, Cellular Telephone Module, Remote Playback Device (CD Changer)
6430AAutomatic Level Control (ALC) Compressor, Automatic Level Control (ALC) Compressor Relay
6540ACigarette Lighter Relay
66—–
67—–
68—–
69—–
70—–
71—–
72—–
73—–
74—–

Circuit Breakers

Assignment of the circuit breakers in the rear underseat fuse box

Fuse Data
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No.TypeAmpsDescription
56Circuit breaker30APower Seats (Seat Lumbar Switch (Driver/Front Passenger), Memory Seat Module (MSM), Seat Adjuster Switch (Driver/Front Passenger))
57Circuit breaker30APower Windows (Driver Door Module (DDM), Front Passenger Door Module (FPDM), Left Rear Door Module (LRDM), Right Rear Door Module (RRDM))

Relays

Assignment of the relays in the rear underseat fuse box

Fuse Data
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No.TypeDescription
R39RelayFuel Pump Assembly, Powertrain Control Module (PCM)
R40RelayParking Lamps
R41RelayIgnition (Fuse №: “8”, “11”, “12”)
R42RelayPark Brake Release Switch
R43RelayPark Brake Release Switch
R44RelayStop Lamp Switch
R45RelayBackup Lamps, Rear Object Sensor Control Module (2001-2004), Inside Rearview Mirror (2001-2004)
R46RelaySunroof Module, Navigation Relay (1998-2000)
R47RelayBlower Motor (Auxiliary)
R48Relay1998-2001: Continuously Variable Road Sensing Suspension (CRVSS) Module
R49RelayIgnition (Fuse №: “33”, “34”, “35”)
R50RelayFuel Door Lock Release Switch
R51RelayInterior Lamps (Footwell Courtesy Lamps, Door Courtesy Lamps, I/P Compartment Lamp, Overhead Console, Reading Lamps, Rear Compartment Lamp, Vanity Mirror Lamps, Rear Integration Module (RIM))
R52RelayRear Compartment Lid Release Switch
R53RelayFront Courtesy Lamps (Footwell Courtesy Lamp, Door Courtesy Lamps, Overhead Console)
R54RelayRear Courtesy Lamps (Reading Lamp Switch)
R55RelayAutomatic Level Control (ALC) Compressor
R58RelayCigarette Lighter (Fuse (Engine Compartment) №: “22”, “23”)
R59RelayRear Window Defogger Grid

FAQ

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