2011 Buick Lucerne Fuse and Relay Location Schematic Guide

Buick Lucerne wiring circuit is equipped by fuses and circuit breakers to protect it from short circuits. This 2011 Buick Lucerne car has ‘the MaxiFuses’ which are located as two fuse blocks, in engine compartment on the passenger’s side (underhood fuse block) and under rear seat on driver’s side.

Above schematic illustrates the Buick Lucerne underhood fuse block with description of every fuse and relay location and usage:

Fuses Usage

1   Engine Control Module (ECM)
2   Fuel Injectors Odd
3   Fuel Injectors Even
4   Air Conditioning Clutch
5   Air Injection Reactor (AIR) Solenoid
6   Oxygen Sensor
7   Emission Device
8   Transmission, Ignition 1
9   Engine Control Module (ECM), Powertrain Control Module (PCM)
10  Climate Control System, Instrument Panel Cluster Ignition 1
11  Airbag System
12  Horn
13  Windshield Wiper
14  Fog Lamps
15  Right High-Beam Headlamp
16  Left High-Beam Headlamp
17  Left Low-Beam Headlamp
18  Right Low-Beam Headlamp
19  Windshield Washer Pump Motor
20  Left Front Cornering Lamp
21  Right Front Cornering Lamp
22  Air Pump
23  Antilock Brake System (ABS)
24  Starter
25  Antilock Brake System (ABS) Motor
26  Cooling Fan 2
27  Cooling Fan 1

Relays Usage

29 Powertrain
30 Starter
31 Cooling Fan 2
32 Cooling Fan 3
33 Cooling Fan 1
34 Air Conditioning Clutch
35 Air Injection Reactor (AIR) Solenoid
36 Ignition
37 Air Pump