Cadillac Catera (1998) – fuse box diagram
Year of production: 1998
Instrument Panel Fuse Block (Driver’s Side)
The fuse block is located below the steering wheel on the driver’s side.

instrument panel (passenger’s side)
Fuse/Relay | Usage |
I | High-Beam Headlamps I (LH) |
II | Automatic Level Control |
III | Rear Window Defog, Heated Mirrors |
IV | Hazard Warning Flashers |
V | High-Beam Headlamp II (RH) |
VI | Horn |
VII | Parking Lamps and Turn Signal Lam |
VIII | Low-Beam Headlamps |
IX | — |
X | — |
XI | Daytime Running Lamps |
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.

Fuse/relay | 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 K40) |
12 | Fan Control (Fuse 40) |
15 | Fan Control (Fuse 52) |
16 | Connector C11 |
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 Connect |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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