Fuse Box Diagrams Cadillac DeVille (2000-2005)

In this article, you will find information about the fuses of the DeVille (models 2000, 2001, 2002, 2003, 2004, and 2005), including diagrams of the fuse boxes, a list of fuses and relays, their designation, and the location of the fuse blocks within the vehicle.

Cadillac DeVille (2000-2005)

Checking and Replacing Fuses in Cadillac DeVille

The wiring circuits in your vehicle are protected from short circuits by a combination of fuses and circuit breakers. 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 a MaxiFuse should blow, have your vehicle serviced by your dealer immediately. The headlamp wiring system has four individual fuses, LF low, RF low, LF high and RF high.

Caution!

  • Be sure you replace a bad fuse with a new one of the identical size and rating.
  • If a MaxiFuse should blow, have your vehicle serviced by your dealer immediately.
  • Always keep the covers on any electrical component.

Location of Fuse Boxes

Underhood Junction Block:
The front Bussed Electrical Center (BEC) is located next to the engine on the passenger’s side of the vehicle. To access the fuse block, push in the two tabs located on the top and the bottom of the fuse block cover.
Cadillac DeVille (2000-2005): Engine compartment fuse box location

Rear Underseat Bussed Electrical Center:
The rear BEC is located under the rear seat on the driver’s side. The rear seat cushion must be removed to access the BEC.
Cadillac DeVille (2000-2005): Rear Underseat fuse box location

Removing the Rear Seat Cushion:

The battery and main fuse boxes are located under the rear seat cushion. The battery’s ground terminal and some relay wires are exposed. To help avoid damage to the battery and wires, be careful when removing or reinstalling the seat cushion. Do not remove covers from covered parts. Do not store anything under the seat, as objects could touch exposed wires and cause a short.

  1. Pull up on the front of the cushion to release the front hooks.
  2. Pull the cushion up and out toward the front of the vehicle.

To Reinstall the Rear Seat Cushion:

  1. Buckle the center passenger position safety belt, then route the safety belts through the proper slots in the seat cushion. Don’t let the safety belts get twisted.
  2. Slide the rear of the cushion up and under the seatback so the rear-locating guides hook into the wire loops on the back frame.
  3. With the seat cushion lowered, push rearward and then press down on the seat cushion until the spring locks on both ends engage.

Cadillac DeVille (2000-2005)


Fuse Box Diagrams

2000

Underhood Junction Block

Cadillac DeVille (2000): Engine compartment fuse box diagram

List of fuses in the Underhood Junction Block (2000)
Usage
Minifuses
1Assembly Line Diagnostic Link
2Accessory
3Windshield Wipers
4Not Used
5Headlamp Low Beam Left
6Headlamp Low Beam Right
7Instrument Panel
8Powertrain Control Module Battery
9Headlamp High Beam Right
10Headlamp High Beam Left
11Ignition 1
12Fog
13Transmission
14Cruise Control
15Coil Module
16Injector Bank #2
17Not Used
18Not Used
19Powertrain Control Module Ignition
20Oxygen Sensor
21Injector Bank #1
22Cigar Lighter #2
23Cigar Lighter #1
24Daytime Running Lamps
25Horn
26Air Conditioner Clutch
Micro Relays
27Headlamp High Beam
28Headlamp Low Beam
29Fog Lamps
30Daytime Running Lamps
31Horn
32Air Conditioner Clutch
Mini Relays
33Not Used
34Accessory
35Not Used
36Starter 1
37Cooling Fan Secondary
38Ignition 1
39Cooling Fan Series / Parallel
40Cooling Fan Primary
Maxibreaker
41Starter
MaxiFuses
42Not Used
43Anti-Lock Brake System
44Air Pump B
45Air Pump A
46Cooling Fan Secondary
47 Cooling Fan Primary
Rear Underseat Bussed Electrical Center

Cadillac DeVille (2000): Passenger compartment fuse panel diagram

List of fuses in the Rear Underseat Bussed Electrical Center (2000)
Usage
Minifuses
1Fuel Pump
2Heater, Ventilation and Air Conditioning Battery
3Memory Seat, Tilt and Telescoping Steering
4HVAC Blower
5Driver Door Module
6Heated Seat Left Rear
7Power Tilt and Telescoping Steering
8Supplemental Inflation Restraint
9Not Used
10Lamps Park Right
11Fuel Tank Ventilation Solenoid
12Ignition 1
13Interior Lamp Dimmer Module
14Sunshade
15Navigation
16Heated Seat Left Front
17Interior Lamps
18Right Rear Door Module
19Stoplamps
20Park / Reverse
21Audio
22Retained Accessory Power for Sunroof
23Lamps, Parking Left
24Night Vision
25Passenger Door Module
26Body
27Export Lights
28Rear HVAC Blower
29Ignition Switch
30Hazard Signal
31Reverse, Locks
32Continuous Variable Road Sensing Suspension
33Heating, Ventilation, Air Conditioning
34Ignition 3 Rear
35Antilock Braking System
36Heated Seat, Right Front
37Heated Seat, Right Rear
38Dimmer
Micro Relays
39Fuel Pump
40Parking Lamps
41Ignition 1
42Park Brake A
43Park Brake B
44Park Shift Interlock
45Reverse Lamps
46Retained Accessory Power for Sunroof
47Reverse Lockout
48CVRSS Dampers
49Ignition 3
50Fuel Tank Door Release
51Interior Lamps
52Trunk Release
53Not Used
54Lock, Cylinder
55Electronic Level Control Compressor
Circuit Breakers
56Power Seats
57Power Windows
Mini Relays
58Cigar Lighter
59Right Rear Defog
MaxiFuses
60Park Brake
61Rear Defog
62Right Rear Lumbar, Power
63Audio Amplifier
64ELC Compressor/Exhaust
65Cigar Lighter
66Not Used

2001

Underhood Junction Block

Cadillac DeVille (2001): Engine compartment fuse box diagram

List of fuses in the Underhood Junction Block (2001)
Usage
Minifuses
1Assembly Line Diagnostic Link
2Accessory
3Windshield Wipers
4Not Used
5Headlamp Low Beam Left
6Headlamp Low Beam Right
7Instrument Panel
8Powertrain Control Module Battery
9Headlamp High Beam Right
10Headlamp High Beam Left
11Ignition 1
12Fog
13Transmission
14Cruise Control
15Coil Module
16Injector Bank #2
17Not Used
18Not Used
19Powertrain Control Module Ignition
20Oxygen Sensor
21Injector Bank #1
22Cigar Lighter #2
23Cigar Lighter #1
24Daytime Running Lamps
25Horn
26Air Conditioner Clutch
Micro Relays
27Headlamp High Beam
28Headlamp Low Beam
29Fog Lamps
30Daytime Running Lamps
31Horn
32Air Conditioner Clutch
Mini Relays
33Not Used
34Accessory
35Not Used
36Starter 1
37Cooling Fan Secondary
38Ignition 1
39Cooling Fan Series/Parallel
40Cooling Fan Primary
Maxibreaker
41Starter
MaxiFuses
42Not Used
43Not Used
44Anti-Lock Brake System
45Air Pump
46Cooling Fan Secondary
47Cooling Fan Primary
Rear Underseat Bussed Electrical Center

Cadillac DeVille (2001): Passenger compartment fuse panel diagram

List of fuses in the Rear Underseat Bussed Electrical Center (2001)
Usage
Minifuses
1Fuel Pump
2Heater, Ventilation and Air Conditioning Battery
3Memory Seat, Tilt and Telescoping Steering
4RR Lumbar, Antenna
5Driver Door Module
6Heated Seat Left Rear
7Power Tilt and Telescoping Steering
8Supplemental Inflation Restraint
9Not Used
10Lamps Park Right
11Fuel Tank Ventilation Solenoid
12Ignition 1
13Interior Lamp Dimmer Module
14Sunshade
15Navigation
16Heated Seat Left Front
17Interior Lamps
18Right Rear Door Module
19Stoplamps
20Park/Reverse
21Audio
22Retained Accessory Power for Sunroof
23Lamps, Parking Left
24Night Vision
25Passenger Door Module
26Body
27Export Lights, Power Locks
28Rear HVAC Blower
29Ignition Switch
30Hazard Signal
31Reverse, Locks
32Continuous Variable Road Sensing Suspension
33Heating, Ventilation, Air Conditioning
34Ignition 3 Rear
35Antilock Braking System
36Heated Seat, Right Front
37Heated Seat, Right Rear
38Dimmer
Micro Relays
39Fuel Pump
40Parking Lamps
41Ignition 1
42Park Brake A
43Park Brake B
44Park Shift Interlock
45Reverse Lamps
46Retained Accessory Power for Sunroof
47Reverse Lockout
48CVRSS Dampers
49Ignition 3
50Fuel Tank Door Release
51Interior Lamps
52Trunk Release
53Not Used
54Lock, Cylinder
55Electronic Level Control Compressor
Circuit Breakers
56Power Seats
57Power Windows
Mini Relays
58Cigar Lighter
59Right Rear Defog
MaxiFuses
60Park Brake
61Rear Defog
62HVAC Blower
63Audio Amplifier
64ELC Compressor / Exhaust
65Cigar Lighter
66Not Used

2002

Underhood Junction Block

Cadillac DeVille (2002): Engine compartment fuse box diagram

List of fuses in the Underhood Junction Block (2002)
Usage
Minifuses
1Assembly Line Diagnostic Link
2Accessory
3Windshield Wipers
4Not Used
5Headlamp Low Beam Left
6Headlamp Low Beam Right
7Instrument Panel
8Powertrain Control Module Battery
9Headlamp High Beam Right
10Headlamp High Beam Left
11Ignition 1
12Fog
13Transmission
14Cruise Control
15Coil Module
16Injector Bank #2
17Not Used
18Not Used
19Powertrain Control Module Ignition
20Oxygen Sensor
21Injector Bank #1
22Cigar Lighter #2
23Cigar Lighter #1
24Daytime Running Lamps
25Horn
26Air Conditioner Clutch
Micro Relays
27Headlamp High Beam
28Headlamp Low Beam
29Fog Lamps
30Daytime Running Lamps
31Horn
32Air Conditioner Clutch
Mini Relays
33Not Used
34Accessory
35Not Used
36Starter 1
37Cooling Fan Secondary
38Ignition 1
39Cooling Fan Series / Parallel
40Cooling Fan Primary
Maxibreaker
41Starter
MaxiFuses
42Not Used
43Not Used
44Anti-Lock Brake System
45Air Pump
46Cooling Fan Secondary
47Cooling Fan Primary
Rear Underseat Bussed Electrical Center

Cadillac DeVille (2002): Passenger compartment fuse panel diagram

List of fuses in the Rear Underseat Bussed Electrical Center (2002)
Usage
Minifuses
1Fuel Pump
2Heater, Ventilation and Air Conditioning Battery
3Memory Seat, Tilt and Telescoping Steering
4RR Lumbar, Antenna
5Driver Door Module
6Heated Seat Left Rear
7Power Tilt and Telescoping Steering
8Supplemental Inflation Restraint
9SDAR(XM™ Satellite Radio-If Equipped)
10Lamps Park Right
11Fuel Tank Ventilation Solenoid
12Ignition 1
13Interior Lamp Dimmer Module
14Sunshade
15Navigation
16Heated Seat Left Front
17Interior Lamps
18Right Rear Door Module
19Stoplamps
20Park/Reverse
21Audio
22Retained Accessory Power for Sunroof
23Lamps, Parking Left
24Night Vision
25Passenger Door Module
26Body
27Export Lights, Power Locks
28Rear HVAC Blower
29Ignition Switch
30Hazard Signal
31Reverse, Locks
32Continuous Variable Road Sensing Suspension
33Heating, Ventilation, Air Conditioning
34Ignition 3 Rear
35Antilock Braking System
36Heated Seat, Right Front
37Heated Seat, Right Rear
38Dimmer
Micro Relays
39Fuel Pump
40Parking Lamps
41Ignition 1
42Park Brake A
43Park Brake B
44Park Shift Interlock
45Reverse Lamps
46Retained Accessory Power for Sunroof
47Reverse Lockout
48Suspension Dampers
49Ignition 3
50Fuel Tank Door Release
51Interior Lamps
52Trunk Release
53Not Used
54Lock, Cylinder
55Electronic Level Control Compressor
Circuit Breakers
56Power Seats
57Power Windows
Mini Relays
58Cigar Lighter
59Rear Defog
MaxiFuses
60Park Brake
61Rear Defog
62HVAC Blower
63Audio Amplifier
64ELC Compressor / Exhaust
65Cigar Lighter
66Not Used

2003

Underhood Junction Block

Cadillac DeVille (2003): Engine compartment fuse box diagram

List of fuses in the Underhood Junction Block (2003)
Usage
1Assembly Line Diagnostic Work
2Accessory
3Windshield Wipers
4Not Used
5Headlamp Low Beam Left
6Headlamp Low Beam Right
7Instrument Panel
8Powertrain Control Module Battery
9Headlamp High Beam Right
10Headlamp High Beam Left
11Ignition 1
12Fog Lamps
13Transmission
14Cruise Control
15Coil Module
16Injector Bank #2
17Not Used
18Not Used
19Powertrain Control Module Ignition
20Oxygen Sensor
21Injector Bank #1
22Cigar Lighter #2
23Cigar Lighter #1
24Daytime Running Lamps
25Horn
26Air Conditioner Clutch
42Not Used
43Not Used
44Anti-Lock Brake System
45Air Pump
46Cooling Fan 1
47Cooling Fan 2
Relays
27Headlamp High Beam
28Headlamp Low Beam
29Fog Lamps
30Daytime Running Lamps
31Horn
32Air Conditioner Clutch
33Not Used
34Accessory
35Not Used
36Starter 1
37Cooling Fan 1
38Ignition 1
39Cooling Fan Series / Parallel
40Cooling Fan 2
Circuit Breakers
41Starter
Rear Underseat Bussed Electrical Center

Cadillac DeVille (2003): Passenger compartment fuse panel diagram

List of fuses in the Rear Underseat Bussed Electrical Center (2003)
Usage
1Fuel Pump
2Heater, Ventilation and Air Conditioning Battery
3Memory Seat, Tilt and Telescoping Steering
4RR Lumbar, Antenna
5Driver Door Module
6Heated Seat Left Rear
7Power Tilt and Telescoping Steering
8Supplemental Inflation Restraint
9SDAR (XM Satellite Radio)
10Lamps Park Right
11Fuel Tank Ventilation Solenoid
12Ignition 1
13Interior Lamp Dimmer Module
14Sunshade
15Navigation
16Heated Seat Left Front
17Interior Lamps
18Right Rear Door Module
19Stoplamps
20Park/Reverse
21Audio
22Retained Accessory Power for Sunroof
23Lamps, Parking Left
24Night Vision
25Passenger Door Module
26Body
27Export Lights, Power Locks
28Rear HVAC Blower
29Ignition Switch
30Hazard Signal
31Reverse, Locks
32Continuous Variable Road Sensing Suspension
33Heating, Ventilation, Air Conditioning
34Ignition 3 Rear
35Antilock Braking System
36Heated Seat, Right Front
37Heated Seat, Right Rear
38Dimmer
60Park Brake
61Rear Defog
62HVAC Blower
63Audio Amplifier
64ELC Compressor / Exhaust
65Cigar Lighter
66Not Used
Relays
39Fuel Pump
40Parking Lamps
41Ignition 1
42Park Brake A
43Park Brake B
44Park Shift Interlock
45Reverse Lamps
46Retained Accessory Power for Sunroof
47Reverse Lockout
48Suspension Dampers
49Ignition 3
50Fuel Tank Door Release
51Interior Lamps
52Trunk Release
53Not Used
54Lock, Cylinder
55Automatic Level Control Compressor
58Cigar Lighter
59Rear Defog
Circuit Breakers
56Power Seats
57Power Windows

2004

Underhood Junction Block

Cadillac DeVille (2004): Engine compartment fuse box diagram

List of fuses in the Underhood Junction Block (2004)
Usage
1Assembly Line Diagnostic Work
2Accessory
3Windshield Wipers
4Not Used
5Headlamp Low Beam Left
6Headlamp Low Beam Right
7Instrument Panel
8Powertrain Control Module Battery
9Headlamp High Beam Right
10Headlamp High Beam Left
11Ignition 1
12Fog Lamps
13Transmission
14Cruise Control
15Coil Module
16Injector Bank #2
17Not Used
18Not Used
19Powertrain Control Module Ignition
20Oxygen Sensor
21Injector Bank #1
22Cigar Lighter #2
23Cigar Lighter #1
24Daytime Running Lamps
25Horn
26Air Conditioner Clutch
42Not Used
43Not Used
44Anti-Lock Brake System
45Air Pump
46Cooling Fan 1
47Cooling Fan 2
Relays
27Headlamp High Beam
28Headlamp Low Beam
29Fog Lamps
30Daytime Running Lamps
31Horn
32Air Conditioner Clutch
33Not Used
34Accessory
35Not Used
36Starter 1
37Cooling Fan 1
38Ignition 1
39Cooling Fan Series / Parallel
40Cooling Fan 2
Circuit Breakers
41Starter
Rear Underseat Bussed Electrical Center

Cadillac DeVille (2004): Passenger compartment fuse panel diagram

List of fuses in the Rear Underseat Bussed Electrical Center (2004)
Usage
1Fuel Pump
2Heater, Ventilation and Air Conditioning Battery
3Memory Seat, Tilt and Telescoping Steering
4RR Lumbar, Antenna
5Driver Door Module
6Heated Seat Left Rear
7Power Tilt and Telescoping Steering
8Supplemental Inflation Restraint
9SDAR (XM Satellite Radio)
10Lamps Park Right
11Fuel Tank Ventilation Solenoid
12Ignition 1
13Interior Lamp Dimmer Module
14Sunshade
15Navigation
16Heated Seat Left Front
17Interior Lamps
18Right Rear Door Module
19Stoplamps
20Park/Reverse
21Audio
22Retained Accessory Power for Sunroof
23Lamps, Parking Left
24Night Vision
25Passenger Door Module
26Body
27Export Lights, Power Locks
28Rear HVAC Blower
29Ignition Switch
30Hazard Signal
31Reverse, Locks
32Continuous Variable Road Sensing Suspension
33Heating, Ventilation, Air Conditioning
34Ignition 3 Rear
35Antilock Braking System
36Heated Seat, Right Front
37Heated Seat, Right Rear
38Dimmer
60Park Brake
61Rear Defog
62HVAC Blower
63Audio Amplifier
64ELC Compressor / Exhaust
65Cigar Lighter
66Not Used
Relays
39Fuel Pump
40Parking Lamps
41Ignition 1
42Park Brake A
43Park Brake B
44Park Shift Interlock
45Reverse Lamps
46Retained Accessory Power for Sunroof
47Reverse Lockout
48Suspension Dampers
49Ignition 3
50Fuel Tank Door Release
51Interior Lamps
52Trunk Release
53Not Used
54Lock, Cylinder
55Automatic Level Control Compressor
58Cigar Lighter
59Rear Defog
Circuit Breakers
56Power Seats
57Power Windows

2005

Underhood Junction Block

Cadillac DeVille (2005): Engine compartment fuse box diagram

List of fuses in the Underhood Junction Block (2005)
Usage
1Assembly Line Diagnostic Work
2Accessory
3Windshield Wipers
4Not Used
5Headlamp Low Beam Left
6Headlamp Low Beam Right
7Instrument Panel
8Powertrain Control Module Battery
9Headlamp High Beam Right
10Headlamp High Beam Left
11Ignition 1
12Fog Lamps (Option)
13Transmission
14Cruise Control
15Coil Module (Option)
16Injector Bank #2
17Not Used
18Not Used
19Powertrain Control Module Ignition
20Oxygen Sensor
21Injector Bank #1
22Cigar Lighter #2
23Cigar Lighter #1
24Daytime Running Lamps
25Horn
26Air Conditioner Clutch
42Not Used
43Not Used
44Anti-Lock Brake System
45Air Pump
46Cooling Fan 1
47Cooling Fan 2
48Spare
49Spare
50Spare
51Spare
52Spare
54Heated Steering Wheel (Option)
Relays
27Headlamp High Beam
28Headlamp Low Beam
29Fog Lamps (Option)
30Daytime Running Lamps
31Horn
32Air Conditioner Clutch
33AIR Control Valve (Option)
34Heated Steering Wheel (Option)
35Accessory
36Starter 1
37Cooling Fan 1
38Ignition 1
39Cooling Fan Series / Parallel
40Cooling Fan 2
Circuit Breakers
41Starter
Miscellaneous
53Fuse Puller
Rear Underseat Bussed Electrical Center

Cadillac DeVille (2005): Passenger compartment fuse panel diagram

List of fuses in the Rear Underseat Bussed Electrical Center (2005)
Usage
1Fuel Pump
2Heater, Ventilation and Air Conditioning Battery
3Memory Seat, Tilt and Telescoping Steering
4RR Lumbar, Antenna
5Driver Door Module
6Heated Seat Left Rear
7Power Tilt and Telescoping Steering
8Supplemental Inflation Restraint
9SDAR (XM Satellite Radio)
10Lamps Park Right
11Fuel Tank Ventilation Solenoid
12Ignition 1
13Interior Lamp Dimmer Module
14Sunshade
15Navigation
16Heated Seat Left Front
17Interior Lamps
18Right Rear Door Module
19Stoplamps
20Park / Reverse
21Audio
22Retained Accessory Power for Sunroof
23Lamps, Parking Left
24Night Vision
25Passenger Door Module
26Body
27Export Lights, Power Locks
28Rear HVAC Blower
29Ignition Switch
30Turn Signal, Hazard Signal
31Reverse, Locks
32Continuous Variable Road Sensing Suspension
33Heating, Ventilation, Air Conditioning
34Ignition 3 Rear
35Antilock Braking System
36Heated Seat, Right Front
37Heated Seat, Right Rear
38Dimmer
60Not Used
61Rear Defog
62HVAC Blower
63Audio Amplifier
64Automatic Level Control Compressor, Exhaust
65Not Used
66Not Used
67Not Used
68Not Used
69Not Used
70Not Used
71Not Used
72Not Used
73Not Used
74Not Used
75Not Used
Relays
39Fuel Pump
40Parking Lamps
41Ignition 1
42Not Used
43Not Used
44Park Shift Interlock
45Reverse Lamps
46Retained Accessory Power for Sunroof
47Reverse Lockout
48Suspension Dampers
49Ignition 3
50Fuel Tank Door Release
51Interior Lamps
52Trunk Release
53Not Used
54Lock, Cylinder
55Automatic Level Control Compressor
58Not Used
59Rear Defog
Circuit Breakers
56Power Seats
57Power Windows