Jonathan Yarden Jan 30, 2021 · 5 min. read
In this article you will find a description of fuses and relays Buick,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Year of production: 1997, 1998, 1999
Instrument Panel Fuse Block
Some fuses are located in a fuse block on the passenger’s side of the instrument panel.
| Circuit Breakers | Usage |
| A | Tire Inflation Monitor Reset Button |
| B | Power Windows, Power Sunroof |
| C | Rear Window Defogger |
| D | Power Seat |
| Fuses | Usage |
| 1 | Ignition Key Solenoid |
| 4 | Ignition Signal — Hot in Run and Start — PCM, BCM U/H Relay |
| 5 | Remote Radio Premium Sound |
| 6 | Power Mirrors |
| 8 | Panel Dimming |
| 10 | Ignition Signal — Hot in Run, Unlock and Start — Cluster, Powertrain Control Module, Body Control Module |
| 13 | DRL Module |
| 14 | Interior Lamps |
| 15 | Door Locks |
| 17 | Taillamps, License Lamps |
| 18 | Radio |
| 19 | Heated Mirrors |
| 20 | Cruise Control |
| 22 | Instrument Panel Cluster |
| 23 | Cigarette Lighter, Auxiliary Power Connection (Power Drop), Data Link |
| 24 | Stoplamps |
| 26 | Parking Lamps |
| 27 | Auxiliary Power Connection (Power Drop): Hot in ACC and Run |
| 28 | Crank Signal, Body Control Module, Cluster, Powertrain Control Module |
| 29 | Ignition Signal — HVAC Control Head |
| 30 | Shifter Lock Solenoid |
| 31 | Air Bag |
| 32 | Body Control Module |
| 33 | Hazard Flashers |
| 34 | Driver’s Heated Seat |
| 36 | Ignition Signal: Hot in ACC and Run, Body Control Module |
| 38 | Low Blower |
| 39 | Anti-Lock Brakes |
| 40 | Turn Signals, Cornering Lamps |
| 41 | Radio, HVAC Head, Remote Keyless Entry, Cluster, CEL TEL |
| 42 | High Blower |
| 43 | Passenger’s Heated Seat |
| 44 | Audio Steering Wheel Controls |
| 45 | Wipers |
Underhood Fuse Block
Some fuses and relays are located in the underhood fuse block on the passenger’s side of the vehicle in the engine compartment.
| Fuses | Usage |
| 1 | ABS |
| 2 | Starter Solenoid |
| 3 | Power Seats, Rear Window Defogger, Heated Seats |
| 4 | High Blower, Hazard Flasher, Stoplamps, Power Mirror, Door Locks |
| 5 | Ignition Switch, BTSI, Stoplamps, ABS, Turn Signals, Cluster, Air Bag, DRL Module |
| 6 | Cooling Fan |
| 7 | Interior Lamps, Retained Accessory Power, Keyless Entry, CEL TEL, Data Link, HVAC Head, Cluster, Radio, AUX Power (Power Drop), Cigarette Lighter |
| 8 | Ignition Switch, Wipers, Radio, Steering Wheel Controls, Body Control Module, AUX Power (Power Drop), Power Windows, Sunroof, HVAC Controls, DRL, Rear Defog Relay |
| 9 | Cooling Fan 2 |
| 10 | Cooling Fan 3 |
| Relays | Usage |
| 11 | Starter Solenoid |
| 12 | Cooling Fan 1 |
| 13 | Ignition Main |
| 14 | Not Used |
| 15 | A/C Clutch |
| 16 | Horn |
| 17 | Fog Lamps |
| 18 | Fuel Pump, Speed Control (L67 only) |
| 19 | Fuel Pump |
| 20 | Not Used |
| 21 | Generator |
| 22 | ECM |
| 23 | A/C Compressor Clutch |
| 24 | Cooling Fan |
| 25 | Electronic Ignition |
| 26 | Transaxle |
| Fuses | Usage |
| 27 | Horn |
| 28 | Fuel Injector |
| 29 | Oxygen Sensor |
| 30 | Engine Emissions |
| 31 | Fog Lamps |
| 32 | Headlamp (Right) |
| 33 | Rear Compartment Release |
| 34 | Parking Lamps |
| 35 | Fuel Pump |
| 36 | Headlamp (Left) |
| 37 | Spare |
| 38 | Spare |
| 39 | Spare |
| 40 | Spare |
| 41 | Spare |
| 42 | Spare |
| 43 | Fuse Puller |
| SYMBOL | Air Conditioner Compressor Clutch Diode |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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