Buick Lucerne (2006 – 2007) – fuse box diagram

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.

Buick Lucerne - wiring diagram - fuse box diagram - engine compartment
Buick Lucerne – wiring diagram – fuse box diagram – 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.

Buick Lucerne - wiring diagram - fuse box diagram - rear underseat
Buick Lucerne – wiring diagram – fuse box diagram – rear underseat
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.