Buick Lucerne (2006 – 2007) – fuse box diagram
Year of production: 2006, 2007
Engine compartment
The underhood fuse block is located on the passenger side of the engine compartment.
| Fuses | Usage |
| F1 | Spare |
| F2 | Driver’s Side Low-Beam |
| F3 | Passenger’s Side Low-Beam |
| F4 | Airbag Ignition |
| F5 | Engine Control Module |
| F6 | Transaxle Ignition |
| F7 | Spare |
| F8 | Spare |
| F9 | Sprare |
| F10 | Passenger’s Side High-Beam Headlamp |
| F11 | Driver’s Side High-Beam Headlamp |
| F12 | Windshield Washer Pump |
| F13 | Spare |
| F14 | Climate Controls, Instrument Panel Cluster |
| F15 | Spare |
| F16 | Fog Lamps |
| F17 | Horn |
| F18 | Windshield Wiper |
| F19 | Driver’s Side Corner Lamp |
| F20 | Passenger’s Side Corner Lamp |
| F21 | Oxygen Sensor |
| F22 | Powertrain |
| F23 | Engine Control Module (ECM), Crank |
| F24 | Injector Coil |
| F25 | Injector Coil |
| F26 | Air Conditioning |
| F27 | Air Solenoid |
| F28 | Engine Control Module, Transaxle Control Module (ECM/TCM) |
| F29 | Spare |
| F30 | Spare |
| F31 | Spare |
| F32 | Spare |
| J-Case Fuse | Usage |
| JC1 | Heated Windshield Washer |
| JC2 | Cooling Fan 1 |
| JC3 | Spare |
| JC4 | Crank |
| JC5 | Cooling Fan 2 |
| JC6 | Anti-lock Brake System 2 |
| JC7 | Anti-lock Brake System 1 |
| JC8 | Air Pump |
| Relays | Usage |
| R1 | Cooling Fan 1 |
| R2 | Cooling Fan |
| R3 | Crank |
| R4 | Powertrain |
| R5 | Spare |
| R6 | Run/Crank |
| R7 | Cooling Fan 2 |
| R8 | Windshield Wiper |
| R9 | Air Pump |
| R10 | Windshield Wiper High |
| R11 | Air Conditioning |
| R12 | Air Solenoid |
Rear Underseat Fuse Block
The rear fuse block is located under the rear seat on the driver side. The rear seat cushion must be removed to access the rear fuse block.
| J-Case Fuse | Usage |
| JC1 | Climate Control Fan |
| JC2 | Rear Defogger |
| JC3 | Electronic Leveling Control/Compressor |
| Fuses | Usage |
| F1 | Amplifier (Option) |
| F2 | Not Used |
| F3 | Interior Lamps |
| F4 | Courtesy/Passenger Side Front Turn Signal |
| F5 | Canister Vent |
| F6 | Magnetic Ride Control Module (Option) |
| F7 | Leveling Compressor |
| F8 | Not Used |
| F9 | Not Used |
| F10 | Switch Dimmer |
| F11 | Fuel Pump |
| F12 | Body Control Module Logic |
| F13 | Airbag |
| F14 | Accessory Power Outlets |
| F15 | Driver’s Side Turn Signal |
| F16 | Passenger Side Rear Turn Signal |
| F17 | Sunroof |
| F18 | Center High-Mounted Stoplamp, Back-up Lamps |
| F19 | Rear Door Locks |
| F20 | Not Used |
| F21 | Radio, S-Band |
| F22 | OnStar® (Option) |
| F23 | Accessory Power Outlet |
| F24 | Driver Door Module |
| F25 | Passenger Door Module |
| F26 | Trunk Release |
| F27 | Heated/Cooled Seats (Option) |
| F28 | Engine Control Module, Transaxle Control Module (ECM/TCM) |
| F29 | Regulated Voltage Control Sense |
| F30 | Daytime Running Lamps |
| F31 | Instrument Panel Harness Module |
| F32 | Not Used |
| F33 | Not Used |
| F34 | Steering Wheel Illumination |
| F35 | Body Harness Module |
| F36 | Memory Seat Module Logic Massage (Option) |
| F37 | Object Detection Sensor (Option) |
| F38 | Not Used |
| F40 | Shifter Solenoid |
| F41 | Retained Accessory Power, Miscellaneous |
| F42 | Driver’s Side Park Lamp |
| F43 | Passenger’s Side Park Lamp |
| F44 | Heated Steering Wheel (Option) |
| F45 | Not Used |
| F46 | Not Used |
| F47 | Heated/Cooled Seats, Ignition 3 (Option) |
| F48 | Ignition Switch |
| F49 | Not Used |
| Circuit Breaker | Usage |
| CB1 | Front Passenger’s Seat, Memory Seat Module |
| CB2 | Driver’s Power Seat, Memory Seat Module |
| CB3 | Door Module, Power Windows |
| CB4 | Not Used |
| Resistor | Usage |
| F39 | Terminating Resistor |
| Relays | Usage |
| R1 | Retained Accessory Power |
| R2 | Park Lamps |
| R3 | Run (Option) |
| R4 | Daytime Running Lamps |
| R5 | Not Used |
| R6 | Trunk Release |
| R7 | Fuel Pump |
| R8 | Not Used |
| R9 | Door Lock |
| R10 | Door Unlock |
| R11 | Not Used |
| R12 | Not Used |
| R13 | Not Used |
| R14 | Rear Defogger |
| R15 | Electronic Leveling Control Compressor |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.