Cadillac Seville (1999) – fuse box diagram

Year of production: 1999

Underhood Junction Block

The front Bussed Electrical Center (BEC) is located in the front of the engine compartment between the windshield washer fluid reservoir and the power steering fluid reservoir (on the passenger’s side). Lift the cover to gain access.

Cadillac Seville mk5 - fuse box - engine compartment — Cadillac Seville – fuse box – engine compartment

Minifuses

Fuse	Usage
1	—
2	Accessory
3	Windshield Wipers
4	—
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	—
13	—
14	Cruise Control
15	Oxygen Sensor A
16	Injector Bank #2
17	—
18	Powertrain Control Module Ignition
19	Direct Ignition System
20	Oxygen Sensor B
21	Injector Bank #1
22	Auxiliary Power
23	Cigar Lighter
24	Fog Lamps/Daytime Running Lamps
25	Horn
26	Air Conditioner Clutch

Micro Relays

Relay	Usage
27	Headlamp High Beam
28	Headlamp Low Beam
29	Fog Lamps
30	Daytime Running Lamps
31	Horn
32	Air Conditioner Clutch

Mini Relays

Relay	Usage
33	—
34	Accessory
35	Starter 2
36	Starter 1
37	Cooling Fan Secondary
38	Ignition 1
39	Cooling Fan Series/Parallel
40	Cooling Fan Primary

Maxibreaker

Circuit breaker	Usage
41	Starter

MaxiFuses

Fuse	Usage
42	—
43	Export Brake
44	Antilock Brake System Solenoid
45	Antilock Brake System Motor
46	Cooling Fan Secondary
47	Cooling Fan Primary

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

Rear Underseat Bussed Electrical Center (BEC)

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 Seville mk5 - fuse box - rear compartment — Cadillac Seville mk5 – fuse box – rear compartment

Minifuses

Fuse	Usage
1	Fuel Pump
2	Heater, Ventilation, Air Conditioner Blower
3	Memory Seat, Tilt and Telescoping Steering
4	Assembly Line Diagnostic Link
5	Driver Door Module
6	Heated Seat Left Rear
7	Power Tilt and Telescoping Steering
8	Supplemental Inflation Restraint
9	—
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	—
24	—
25	Passenger Door Module
26	Fuel Door/Trunk Release
27	Interior Lamps
28	Rear HVAC Blower
29	Ignition Switch
30	—
31	Heated Seat Right Front
32	Continuous Variable Road Sensing Suspension
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

Micro Relays

Relay	Usage
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	CVRSS Dampers
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

Circuit Breakers

Relay	Usage
56	Power Seats
57	Power Windows

Mini Relays

Relay	Usage
58	Cigarette Lighter
59	Rear Defog

MaxiFuses

Fuse	Usage
60	Park Brake
61	Rear Defog
62	—
63	Audio Amplifier
64	ELC Compressor/Exhaust
65	Cigar Lighter
66	—

The spare fuses are located in numbers 67 through 74.
The fuse puller is located in number 75.

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

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Cadillac Seville (1999) – fuse box diagram