The Cadillac Catera, produced from 1997 to 2001, was a mid-size luxury sedan known for its European-inspired design and performance. Its electrical system, including the fuse box and relay components, played a crucial role in its operation and reliability.
The fuse box in the Cadillac Catera from 1997 to 2001 housed various fuses designed to protect specific electrical circuits throughout the vehicle. These circuits powered essential components such as the engine control module, lighting systems, climate control, entertainment features, and more. Fuses were essential as they would interrupt the electrical flow in case of an overload or short circuit, preventing damage to sensitive components.
Relays in the Cadillac Catera acted as electrically operated switches that controlled high-current circuits. They facilitated the precise activation and deactivation of functions like the starter motor, fuel pump, air conditioning compressor, and power windows or seats. Efficient management of power distribution by relays contributed significantly to the vehicle’s overall performance and reliability.
Regular inspection and maintenance of the fuse box and relays were necessary to ensure the Cadillac Catera from 1997 to 2001 operated smoothly. This involved checking fuses for signs of wear or damage, ensuring secure relay connections, and promptly addressing any electrical issues that arose. Proper care of these components helped maintain the vehicle’s electrical integrity, enhancing safety and driving satisfaction for owners of the Cadillac Catera from 1997 to 2001.
MUST READ: DYI – How to Check Car Fuses?
(1997-2001) Cadillac Catera fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Cadillac Catera 1997-2001 fuse assignment
- Cigar lighter (power outlet) fuse in the Cadillac Catera is the fuse №. 14 in the Passenger Compartment Fuse Box (1997), or fuse №. 16 in the Passenger Compartment Fuse Box (1998-2001).
Year of production: 1997, 1998, 1999, 2000, 2001
Engine Compartment
Engine Compartment Relay Center is located next to the battery under the cover.
Power Distribution Fuse Block is located under the cover on the battery.
Passenger compartment
The fuse box is located behind the trim panel below the steering wheel.
Relay Box is placed near the fuse box.
Using a screwdriver, loosen the two trim fasteners under the trim panel and pull the trim panel away from the instrument panel to access.
Fuse box diagrams
1997
Engine Compartment Relay Center
Assignment of the fuses and relays in the Engine Compartment Relay Center (1997)
| № | Usage |
|---|---|
| 1 | Secondary Air Induct |
| 2 | A/C Blower-Radiator |
| 3 | Coolant Pump Follow-Up |
| 4 | Interval Windshield Washer and Wiper |
| 5 | A/C Compressor |
| 6 | A/C Blower-Radiator |
| 7 | A/C Blower-Radiator |
| 8 | A/C Blower-Radiator |
| 9 | Secondary Air Induct |
| 10 | Injection Valves |
| 12 | Blower-Radiator |
| 15 | A/C Blower-Radiator |
| 16 | Plug Connection |
| 17 | A/C Blower-Radiator |
| 18 | A/C Blower-Radiator |
| 19 | Relay |
| 20 | Fuel Pump |
| 27 | Oxygen Exhaust Sensor |
| 28 | Control Unit |
| 29 | Blower Box |
| 39 | Diagnostic Plug Connection |
Passenger Compartment Fuse Box
Assignment of the fuses in the Passenger Compartment Fuse Box (1997)
| № | Usage |
|---|---|
| 1 | RH and LH Front Side Door Window Regulator Motor, LH Front Side Door Window Switch |
| 2 | Stoplamp Switch |
| 3 | Automatic Transmission Switch and Control Indicator, Power Steering Control Module, Hazard Warning Switch |
| 4 | RH and LH Rear Seat Cushion Heater Relay |
| 5 | Transmission Control Module |
| 6 | Sound Processor Amplifier |
| 7 | RH and LH Rear Side Door Window Regulator Motor |
| 8 | Headlamp Switch, Turn Signal Switch, Horn Relay, CD Changer, Multifunction Relay Module |
| 9 | Windshield Wiper Motor and Relay, Windshield Wiper and Windshield Washer Switch |
| 10 | Body Control Module (BCM), Auxiliary Water Pump, Healer and A/C Control, Fan Control Relays |
| 11 | Heater and A/C Control, RH and LH Outside Rearview Mirrors, Outside Remote Control Rearview Mirror Switch |
| 12 | Hazard Wanting Switch, Instrument Cluster, Data Link Connector (DLC), Stoplamp Switch, Gage Cluster, Heater and A/C Control |
| 13 | Remote Control Outside Rearview Mirror Switch, A/C Compressor Relay, Test Connector, A/C Control Switch |
| 14 | Cellular Telephone, Cigarette Lighter, RH and LH Windshield Washer Nozzle, Driver and Passenger Heated Seat Switch, Heater and A/C Control, Heated Outside Rearview Mirror and Rear Window Defoceer Relay |
| 15 | Rear Suspension Leveling Air Compressor Relay, Instrument Cluster, Gage Cluster, Cruise Control Switch and Module, Headlamp Switch, Multifunction Relay Module, Passenger and Driver Heated Seat Relay, BCM, Sunroof Actuator, Automatic Level Control Sensor, RH and LH Heated Rear Seat Switch and Cushion Relay, Driver Seat Adjuster Memory Module, LH Front Side Door Window Switch, Inside Rearview Mirror |
| 16 | Transmission Control Module |
| 17 | Horn # 1 and #2 |
| 18 | Fuel Pump |
| 19 | Electronic Brake/Traction Control Module |
| 20 | Passenger and Driver Heated Seat Relay |
| 21 | Daytime Running Lamp (DRL) Relay, LH High Beam Headlamp Relay |
| 22 | Headlamp Switch and LH Low-Beam Headlamp |
| 23 | Multifunction Relay Mixlule, LH Park/Turn Signal Lamp, LH Slop/Taillamp, LH Rear Side Marker Lamp |
| 24 | Lifting Magnet, BCM, Gage Cluster |
| 25 | Sunroof Actuator |
| 26 | Headlamp Switch, RH and LH Front Side Marker Lamp, Middle Taillamp, RH and LH Rear License Plate Lamp, Radio, Automatic Transmission Control Indicator, Heater and A/C Control |
| 27 | Automatic Level Control Sensor, Rear Suspension Leveling Air Compressor and Relay |
| 28 | Remote Control Door Lock Receiver, Door Lock Relay, Rear Compartment Lid Release Connector (Not Used) |
| 29 | Multifunction Relay Module |
| 30 | RH Park/Turn Signal Lamp and RH Stop/Taillamp, RH Rear Side Marker Lamp |
| 31 | Turn Signal Switch and RH Low-Beam Headlamp |
| 32 | RH High-Beam Headlamp Relay |
| 33 | Blower, A/C Compressor Relay |
| 34 | Heated Outside Rearview Mirror and Rear Window Defogger Relay |
| 35 | Passenger and Driver Seat Adjuster Switches, Driver Seat Adjuster Memory Module |
Passenger Compartment Relay Box
Assignment of the relays in the Passenger Compartment Relay Box (1997)
| № | Usage |
|---|---|
| I | High-Beam Headlamp – LH |
| II | Automatic Level Control |
| III | Healed Rear Window, Heated Power Mirrors |
| IV | Hazard Warning Flashers |
| V | High-Beam Headlamp – RH |
| VI | Horn |
| VII | Parking Lamps |
| VIII | Low-Beam Headlamps |
| IX | Not Used |
| X | Not Used |
| XI | Dayume Running Lamps |
1998
Engine Compartment Relay Center
Assignment of the fuses and relays in the Engine Compartment Relay Center (1998)
| № | Usage |
|---|---|
| 1 | Secondary Air Injection Pump (Relay K12) |
| 2 | Fan Control (Relay K67) |
| 3 | Auxiliary Water Pump (Relay K22) |
| 4 | Windshield Wiper Motor (Relay K8) |
| 5 | A/C Compressor (Relay K60) |
| 6 | Fan Control (Relay K87) |
| 7 | Fan Control (Relay K26) |
| 8 | Fan Control (Fuse 42) |
| 9 | Secondary Air Injection Pump (Fuse 49) |
| 10 | Engine Controls Power (Relay K43) |
| 12 | Fan Control (Fuse 40) |
| 15 | Fan Control (Fuse 52) |
| 16 | Connector C110 |
| 17 | Fan Control (Relay K52) |
| 18 | Fan Control (Relay K28) |
| 19 | Fan Control Relay, Engine Control Module (ECM) Relay (Fuse 50) |
| 20 | Fuel Pump (Relay K44) |
| 27 | Heated Oxygen Sensors (Fuse 43) |
| 28 | Engine Control Module (ECM) (Fuse 60) |
| 29 | Engine Control Module (ECM) (Relay K48) |
| 39 | Coolant Fan Test Connector |
Passenger Compartment Fuse Box
Assignment of the fuses in the Passenger Compartment Fuse Box (1998)
| № | Usage |
|---|---|
| 1 | RH and LH Front Side Door Window Regulator Motor, LH Front Side Door Window Switch |
| 2 | Stoplamp Switch |
| 3 | Automatic Transmission Range Switch and Control Indicator, Power Steering Control Module, Hazard Warning Switch, Automatic Transmission Winter Mode Switch |
| 4 | RH and LH Rear Seat Cushion Heater Relav |
| 5 | Transmission Control Module |
| 6 | Radio Speaker Amplifier |
| 7 | RH and LH Rear Side Door Window Regulator Motor |
| 8 | Headlamp Switch, Turn Signal Switch, Horn Relay, CD Changer, Multifunction Relay |
| 9 | Windshield Wiper Motor and Relay, Windshield Wiper and Windshield Washer Switch |
| 10 | Body Control Module (BCM), Heater Water Auxiliary Pump, Fan Control Relays, ECM Relay, Auxiliary Water Pump Relay |
| 11 | Heater and A/C Control, RH and LH Outside Rearview Mirrors, Outside Remote Control Rear View Mirror Switch |
| 12 | Hazard Warning Switch, Instrument Cluster, Data Link Connector (DLC), Stoplamp Switch, Gage Cluster, Heater and A/C Control |
| 13 | Remote Control Outside Rearview Mirror Switch, A/C Compressor Relay, Coolant Fan Test Connector, A/C Load Switch |
| 14 | Cellular Telephone, RH and LH Windshield Washer Nozzle, Driver and Passenger Heated Seat Switch, Heater and A/C Control, Heated Outside Rearview Mirror and Rear Window Defogger Relay |
| 15 | Rear Suspension leveling Air Compressor Relay, Instrument Cluster, Gage Cluster, Cruise Control Switch and Module, Headlamp Switch, Multifunction Relay, Passenger and Driver Heated Seat Relay, BCM, Sunroof Actuator, Automatic Level Control Sensor, RH and LH Heated Rear Seat Switch and Cushion Relay, Driver Seat Adjuster Memory Module, LH Front Side Door Window-Switch, Inside Rearview Mirror |
| 16 | Cigarette Lighter (From and Console) |
| 17 | Horn №. 1 and №. 2 |
| 18 | Fuel Pump |
| 19 | Electronic Brake/Traction Control Module |
| 20 | Passenger and Driver Heated Seat Relay |
| 21 | Daytime Running Lamp (DRL) Relay, LH High-Beam Headlamp Relay |
| 22 | Headlamp Switch, LH Headlamp (Low Beam) |
| 23 | LH Parking 1-amp and Turn Signal Lamp, LH Rear Sidemarker Lamp, Multifunction Relay, LH Stoplamp and Tail lamp |
| 24 | Lifting Magnet, BCM, Gage Cluster |
| 25 | Sunroof Actuator |
| 26 | Headlamp Switch, RH and LH Front Sidemarker Lamp, Middle Taillamp, RH and LH Rear License Plate Lamp, Radio, Automatic Transmission Control Indicator, Heater and A/C Control |
| 27 | Automatic Level Control Sensor, Rear Suspension Leveling Air Compressor and Rela |
| 28 | Remote Control Door Lock Receiver, Door Lock Relay, Rear Compartment Lid Release Connector (Not Used) |
| 29 | Multifunction Relay |
| 30 | RH Parking Lamp and Turn Signal Lamp, RH Rear Sidemarker Lamp, RH Stoplamp and Taillamp |
| 31 | RH Low-Beam Headlamp and Turn Signal Switch |
| 32 | RH High-Beam Headlamp Relay |
| 33 | Blower Controller, A/C Compressor Relay |
| 34 | Heated Rear Window Defogger Relay, Heated Outside Rearview Mirror |
| 35 | Passenger and Driver Seat Adjuster Switch, Driver Seat Adjuster Memory Module |
Passenger Compartment Relay Box
Assignment of the relays in the Passenger Compartment Relay Box (1998)
| Relay | Usage |
|---|---|
| I | High-Beam Headlamps 1 (LH) |
| II | Automatic Level Control |
| III | Rear Window Defog. Heated Mirrors |
| IV | Hazard Warning Flashers |
| V | High-Bcam Headlamps 2 (KH) |
| VI | Horn |
| VII | Parking Lamps and Turn Signal Lamps |
| VIII | Low-Beam Headlamps |
| IX | Not Used |
| X | Not Used |
| XI | Daytime Running Lamps |
2000, 2001
Engine Compartment Relay Center
Assignment of the fuses and relays in the Engine Compartment Relay Center (2000, 2001)
| № | Usage |
|---|---|
| 1 | Secondary Air Injection Pump (Relay K12) |
| 2 | Fan Control (Relay K67) |
| 3 | Auxiliary Water Pump (Relay K22) |
| 4 | Windshield Wiper Motor (Relay K8) |
| 5 | A/C Compressor Relay (K60) |
| 6 | Fan Control Relay (K87) |
| 7 | Fan Control Relay (K26) |
| 8 | Fuse 50 |
| 9 | Fan Control Relay (K28) |
| 10 | Engine Controls Power Relay (K43) |
| 15 | Fuse 40 (A) Fuse 52 (B) |
| 16 | Connector C110 |
| 17 | Coolant Fan Test Connector Fan Control |
| 18 | Fuse 42 (A), Fuse 49 (B) |
| 19 | Fan Control Relay (K52) |
| 20 | Fuel Pump Relay (K44) |
| 29 | Fuse 43 |
Passenger Compartment Fuse Box
Assignment of the fuses in the Passenger Compartment Fuse Box (2000, 2001)
| № | Usage |
|---|---|
| 1 | RH and LH Front Side Door Window Regulator Motor, LH Front Side Door Window Switch |
| 2 | Stoplamp Switch, Cruise Control Release Switch |
| 3 | Automatic Transmission Range Switch, Automatic Transmission Control Indicator, Power Steering Control Module, Hazard Warning Switch, Automatic Transmission Winter Mode Switch, Transmission Control Module (TCM) |
| 4 | RH and LH Rear Seat Cushion Heater Relay, Rear Sunshade Motor, Accessory Power Outlet |
| 5 | Transmission Control Module |
| 6 | Radio Speaker Amplifier |
| 7 | RH and LH Rear Side Door Window Regulator Motor |
| 8 | Headlamp Switch, Turn Signal Switch, Horn Relay, CD Changer, Multifunction Relay |
| 9 | Windshield Wiper Motor and Relay, Windshield Wiper and Windshield Washer Switch |
| 10 | Body Control Module (BCM), Heater Water Auxiliary Pump, Fan Control Relays, Auxiliary Water Pump Relay |
| 11 | Heater and A/C Control, RH and LH Outside Rearview Mirrors |
| 12 | Hazard Warning Switch, Instrument Cluster, Data Link Connector (DLC), Stoplamp Switch, Gage Cluster, Heater and A/C Control. |
| 13 | Remote Control Outside Rearview Mirror Switch, A/C Compressor Relay, Coolant Fan Test Connector, A/C Load Switch |
| 14 | Cellular 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 |
| 15 | Rear Suspension Leveling Air Compressor Relay, Instrument Cluster, Gage Cluster, Cruise Control Switch, Headlamp Switch, Multifunction Relay, Passenger and Driver Heated Seat Relay, BCM, 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 |
| 16 | Cigarette Lighter (Front and Console) |
| 17 | Horn #1 and #2 |
| 18 | Fuel Pump |
| 19 | Electronic Brake/Traction Control Module |
| 20 | Passenger and Driver Heated Seat Relay |
| 21 | Daytime Running Lamp (DRL) Relay, LH High-Beam Headlamp Relay |
| 22 | Headlamp Switch, LH Low-Beam Headlamp |
| 23 | LH Parking Lamp and Turn Signal Lamps, LH Rear Sidemarker Lamp, Multifunction Relay, LH Stoplamp and Taillamp |
| 24 | Lifting Magnet, BCM, Gage Cluster |
| 25 | Sunroof Actuator |
| 26 | Headlamp Switch, RH and LH Front Sidemarker Lamp, Middle Taillamp, RH and LH Rear License Plate Lamp, Radio, Automatic Transmission Control Indicator, Heater and A/C Control |
| 27 | Automatic Level Control Sensor, Rear Suspension Leveling Air Compressor and Relay |
| 28 | Door Lock Relay |
| 29 | Multifunction Relay, OnStar System |
| 30 | RH Parking Lamp and Turn Signal Lamp, RH Rear Sidemarker Lamp, RH Stoplamp and Taillamp |
| 31 | RH Low-Beam Headlamp Turn Signal Switch |
| 32 | RH High-Beam Headlamp Relay |
| 33 | Blower Controller, A/C Compressor Relay |
| 34 | Heated Rear Window Defogger Relay |
| 35 | Passenger Seat Adjuster Switch, Driver Seat Adjuster Memory Module |
Passenger Compartment Relay Box
Assignment of the relays in the Passenger Compartment Relay Box (2000, 2001)
| Relay | Usage |
|---|---|
| I | Daytime Running Lamps |
| II | Automatic Level Control |
| III | Rear Window Defogger, Heated Mirrors |
| IV | Hazard Warning Flashers |
| V | High-Beam Headlamps II (RH) |
| VI | Horn |
| VII | Parking Lamps and Turn Signal Lamps |
| VIII | Low-Beam Headlamps |
| IX | Not Used |
| X | Not Used |
| XI | High-Beam Headlamps I (LH) |
Conclusion
For owners and enthusiasts of classic Cadillac Catera 1997-2001, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Cadillac’s craftsmanship and innovation in the automotive industry during that era.
