Cadillac Catera (1997-2001) Fuse Diagram


Fuse box diagram (fuse layout), location and assignment of fuses and relays of Cadillac Catera (1997, 1998, 1999, 2000, 2001).

Cadillac Catera (1997-2001)

Checking and Replacing Fuses

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 you ever have a problem on the road and don’t have a spare fuse, you can borrow one that has the same amperage. Pick some feature of your vehicle that you can get along without — like the radio or cigarette lighter — and use its fuse if it is the correct amperage. Replace it as soon as you can.


  • Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.
  • Do not repair fuses and never replace a blown fuse with one that has a higher amp rating. This can cause damage to the electrical system and fire.
  • Never replace a broken fuse with anything other than a new fuse. Use always an intact fuse of the same color.
  • If a fuse blows again contact authorized services.

Instrument Panel Fuse Box Diagram

The fuse block is located below the steering wheel on the driver’s side. Using a screwdriver, loosen the two trim fasteners under the trim panel and pull the trim panel away from the instrument panel to access.

Instrument Panel Fuse Box location Instrument Panel Fuse Box Diagram

1RH and LH Front Side Door Window Regulator Motor,
LH Front Side Door Window Switch
2Stoplamp Switch,
Cruise Control Release Switch
3Automatic Transmission Range Switch,
Automatic Transmission Control Indicator,
Power Steering Control Module,
Hazard Warning Switch,
Automatic Transmission Winter Mode Switch,
Transmission Control Module (TCM)
4RH and LH Rear Seat Cushion Heater Relay,
Rear Sunshade Motor,
Accessory Power Outlet
5Transmission Control Module
6Radio Speaker Amplifier
7RH and LH Rear Side Door Window Regulator Motor
8Headlamp Switch,
Turn Signal Switch,
Horn Relay,
CD Changer,
Multifunction Relay
9Windshield Wiper Motor and Relay,
Windshield Wiper and Windshield Washer Switch
10Body Control Module (BCM),
Heater Water Auxiliary Pump,
Fan Control Relays,
Auxiliary Water Pump Relay
11Heater and A/C Control,
RH and LH Outside Rearview Mirrors
12Hazard Warning Switch,
Instrument Cluster,
Data Link Connector (DLC),
Stoplamp Switch,
Gage Cluster,
Heater and A/C Control.
13Remote Control Outside Rearview Mirror Switch,
A/C Compressor Relay,
Coolant Fan Test Connector,
A/C Load Switch
14Cellular Telephone,
RH and LH Windshield Washer Nozzles,
Driver and Passenger Heated Seat Switch,
Heater and A/C Control,
Heated Outside Rearview Mirror and Rear Window Defogger Relay
15Rear Suspension Leveling Air Compressor Relay,
Instrument Cluster,
Gage Cluster,
Cruise Control Switch,
Headlamp Switch,
Multifunction Relay,
Passenger and Driver Heated Seat Relay,
Sunroof Actuator,
Automatic Level Control Sensor,
RH and LH Heated Rear Seat Switch,
RH and LH Heated Rear Seat Cushion Relay,
Driver Seat Adjuster Memory Module,
LH Front Side Door Window Switch,
Inside Rearview Mirror
16Cigarette Lighter (Front and Console)
17Horn #1 and #2
18Fuel Pump
19Electronic Brake/Traction Control Module
20Passenger and Driver Heated Seat Relay
21Daytime Running Lamp (DRL) Relay,
LH High - Beam Headlamp Relay
22Headlamp Switch,
LH Low - Beam Headlamp
23LH Parking Lamp and Turn Signal Lamps,
LH Rear Sidemarker Lamp,
Multifunction Relay,
LH Stoplamp and Taillamp
24Lifting Magnet,
Gage Cluster
25Sunroof Actuator
26Headlamp Switch,
RH and LH Front Sidemarker Lamp,
Middle Taillamp,
RH and LH Rear License Plate Lamp,
Automatic Transmission Control Indicator,
Heater and A/C Control
27Automatic Level Control Sensor,
Rear Suspension Leveling Air Compressor and Relay
28Door Lock Relay
29Multifunction Relay,
OnStar System
30RH Parking Lamp and Turn Signal Lamp,
RH Rear Sidemarker Lamp,
RH Stoplamp and Taillamp
31RH Low - Beam Headlamp Turn Signal Switch
32RH High - Beam Headlamp Relay
33Blower Controller,
A/C Compressor Relay
34Heated Rear Window Defogger Relay
35Passenger Seat Adjuster Switch,
Driver Seat Adjuster Memory Module


Relay Box

The relay box is located on the lower part of the instrument panel, to the right of the fuse box.

Relay Box

IDaytime Running Lamps
IIAutomatic Level Control
IIIRear Window Defogger,
Heated Mirrors
IVHazard Warning Flashers
VHigh - Beam Headlamps II (RH)
VIIParking Lamps and Turn Signal Lamps
VIIILow - Beam Headlamps
IXNot Used
XNot Used
XIHigh - Beam Headlamps I (LH)

Engine Compartment Relay Center

The relay center is located next to the battery on the driver’s side of the engine. Lift the cover to access.

Engine Compartment Relay Center Location

Version 1

Engine Compartment Relay Center (version 1)

1Secondary Air Injection Pump (Relay K12)
2Fan Control  (Relay  K67)
3Auxiliary Water Pump (Relay  K22)
4Windshield Wiper Motor (Relay K8)
5A/C Compressor Relay (K60)
6Fan Control Relay (K87)
7Fan Control Relay (K26)
8Fan Control (Fuse 42)
9Secondary Air Injection  Pump (Fuse 49)
10Engine Controls Power Relay (K43)
12Fan Control (Fuse 40)
15Fan Control (Fuse 52)
16Connector C110
17Fan Control (Relay  K52)
18Fan Control (Relay  K28)
19Fan Control Relay,  
Engine Control Module (ECM) Relay (Fuse 50)
20Fuel Pump (Relay  K44)
27Heated Oxygen Sensors (Fuse  43)
28Engine Control Module (ECM) (Fuse 60)
29Engine Control Module (ECM) (Relay K48)
39Coolant Fan Test Connec



Version 2

Engine Compartment Relay Center (version 2)

1Secondary Air Injection Pump (Relay K12)
2Fan Control (Relay K67)
3Auxiliary Water Pump (Relay K22)
4Windshield Wiper Motor (Relay K8)
5A/C Compressor Relay (K60)
6Fan Control Relay (K87)
7Fan Control Relay (K26)
8Fuse 50
9Fan Control Relay (K28)
10Engine Controls Power Relay (K43)
15Fuse 40 (A)
Fuse 52 (B)
16Connector C110
17Coolant Fan Test Connector Fan Control
18Fuse 42 (A),
Fuse 49 (B)
19Fan Control Relay (K52)
20Fuel Pump Relay (K44)
25Fuse 43