Buick LeSabre (1999) – fuse box diagram
Year of production: 1999
Driver’s Side Fuse Block
The driver’s side fuse block is to the left of the steering wheel, under the instrument panel.
| Fuses | Usage |
| 1 | Not Used |
| 2 | Not Used |
| 3 | Power Seats Circuit Breaker |
| 4 | Not Used |
| 5 | Not Used |
| 1A | PASS Key |
| 2A | Spare |
| 3A | Not Used |
| 4A | Not Used |
| 5A | Auto HVAC, ALM, Cruise Control, Cluster |
| 6A | Courtesy Lamps, Power Mirrors |
| 7A | Not Used |
| 8A | Perimeter Lighting |
| 9A | Not Used |
| 1B | Turn Signal, Back-Up Lamps, BTSI |
| 2B | Spare |
| 3B | Not Used |
| 4B | Not Used |
| 5B | Anti-Lock Brake System, Computer Command Control |
| 6B | Brake and Hazard Lamps |
| 7B | Not Used |
| 8B | Interior Lighting |
| 9B | Cigarette Lighter |
| 1C | Air Bag System |
| 2C | Spare |
| 3C | Not Used |
| 4C | Not Used |
| 5C | Cooling Fans, Transaxle |
| 6C | Parking Lamps, Interior Lamps |
| 7C | Not Used |
| 8C | Parking Lamps |
| 9C | Radio, Cluster |
| 1D | Telltale, Chime, Cluster, RAC, LCM |
| 2D | Spare |
| 3D | Heated Mirrors |
| 4D | Not Used |
| 5D | Manual A/C |
| 6D | Not Used |
| 7D | TCC |
| 8D | Radio |
| 9D | Not Used |
| 1E | Not Used |
| 2E | Air Bag System, PASS-Key |
| 3E | Not Used |
| 4E | Not Used |
| 5E | Rear Defog |
| 6E | Not Used |
| 7E | Miscellaneous Engine-Non OBD II |
| 8E | Wipers, Washer |
| 9E | Not Used |
Passenger’s Side Fuse Block
Additional fuses are located in the relay center, on the passenger’s side, below the instrument panel.
| Fuses | Usage |
| 1 | Door Locks |
| 2 | Trunk Release, RAC |
| 3 | Horns |
| 4 | Not Used |
| 5 | Miscellaneous Engine Controls (OBD II) |
| 6 | Fuel Pump |
| 7 | Injectors |
| 8 | Powertrain Control Module |
| 9 | Not Used |
| 10 | Not Used |
| 11 | A/C Programmer |
| 12 | Not Used |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.