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Cadillac DeVille (2003 – 2004) – fuse box diagram


Cadillac DeVille (2003 – 2004) – fuse box diagram

Year of production: 2003, 2004

Underhood Fuse Block

The underhood fuse block is located next to the engine on the passenger’s side of the vehicle. To access the fuses, push in the two tabs located at each end of the fuse block cover. Then lift the cover off.

Cadillac DeVille mk8 - fuse box - engine compartment
Cadillac DeVille mk8 – fuse box – engine compartment

Fuse 22 or 23 can be moved to the outer position to enable the accessory power outlets or cigarette lighter when the ignition is not on.

 

FusesUsage
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

 

RelaysUsage
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 BreakersUsage
41Starter

The spare fuses are located in numbers 48 through 52. The fuse puller is located in number 53.

 

Rear Underseat Fuse Block

The rear fuse block is located under the rear seat on the driver’s side. The rear seat cushion must be removed to access the rear fuse block.

Cadillac DeVille mk8 - fuse box - rear underseat
Cadillac DeVille mk8 – fuse box – rear underseat
FusesUsage
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

 

RelaysUsage
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 BreakersUsage
56Power Seats
57Power Windows

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.