Table of Contents
This material discusses in detail the fuse diagrams of the Buick LaCrosse (second generation): 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 release.
Fuses #6 and #7 in the interior fuse box are responsible for the cigarette lighter and 12V power sockets.
In the engine compartment
Located near the battery.
To access, squeeze the three retaining clips on the fuse box cover and lift it straight up.
General view.
| Diagram | ||
|---|---|---|
 |
||
| No. | Description | Amps |
| R1 | Air Conditioning Compressor Clutch | - |
| R2 | Starter Relay | - |
| R3 | Not Used | - |
| R4 | Front Wiper (Speed Control) | - |
| R5 | Front Wiper (On/Off) | - |
| R6 | 2.4L (LUK -Hybrid): Heater Coolant Pump | - |
| R7 | Engine Control Module (ECM) | - |
| R8 | Not Used | - |
| R9 | Cooling Fan Right (High Speed) | - |
| R10 | Cooling Fan (Low Speed) | - |
| R11 | 2.4L (LUK -Hybrid): Transmission Fluid Pump | - |
| R12 | Not Used | - |
| R13 | Cooling Fan Left (High Speed) | - |
| R14 | Low Beam | - |
| R15 | Ignition | - |
| R16 | Secondary Air Injection Pump | - |
| R17 | Rear Window Defogger Relay | - |
| R18 | Horn (Non-Serviceable) | - |
| R19 | Windshield Washer Pump (Non-Serviceable) | - |
| R20 | Front Fog Lamp (Non-Serviceable) | - |
| R21 | High Beam (Non-Serviceable) | - |
| R22 | Door Locks (Non-Serviceable) | - |
| R23 | 2.4L (LUK - Hybrid): Starter/Generator Control Unit (Non-Serviceable) | - |
| 1 | Transmission Control Solenoid Valve Assembly | 15 A |
| 2 | Engine Control Module | 5 A |
| 3 | 2014: A/C Compressor Clutch | 10 A |
| 4 | Empty | - |
| 5 | Engine Control Module | 5 A |
| 6 | Windshield Wiper Motor | 30 A |
| 7 | Empty | - |
| 8 | 3.0L (LF1), 3.6L (LLT, LFX): Ignition Coils, Engine Control Module (ECM) | 15 A |
| 9 | 3.0L (LF1), 3.6L (LLT, LFX), 2.4L (LUK): Ignition Coils, Engine Control Module (ECM) | 15 A |
| 10 | Engine Control Module (ECM) | 20 A |
| 11 | 3.0L (LF1), 3.6L (LLT, LFX): Heated Oxygen Sensors | 10 A |
| 3.6L (LFX): Heated Oxygen Sensors, Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor, Fuel Composition Sensor | 10 A | |
| 12 | Starter Motor | 30 A |
| 13 | Fuel Pump Flow Control Module, Transmission Control Solenoid Valve Assembly | 7,5 A |
| 14 | 2.4L (LUK - Hybrid): Heater Coolant Pump | 5 A |
| 15 | 2.4L (LUK - Hybrid): Starter/Generator Control Module | 10 A |
| 16 | 3.6L (LLT): Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor | 7,5 A |
| 17 | Inflatable Restraint Sensing and Diagnostic Module (SDM) | 5 A |
| 18 | Empty | - |
| 19 | Empty | - |
| 20 | Empty | - |
| 21 | Left Rear/Right Rear Window Switch | 30 A |
| 22 | Moonroof Sunshade Motor Module and Control Module | 30 A |
| 23 | Power Steering Control Unit | 10 A |
| 2.4L (LUK - Hybrid): Hybrid/EV Battery Pack | 7,5 A | |
| 24 | 2014: Window Switch (Left Front/Right Front) | 30 A |
| 25 | Empty | - |
| 26 | ABS system | 60 A |
| 27 | Parking Brake Control Unitr | 30 A |
| 28 | Rear Window Defogger | 40 A |
| 29 | Driver's Seat Lumbar Adjuster Switch | 15 A |
| 30 | 2.4L (LUK -Hybrid): Hybrid/EV Battery Pack Cooling Fan | 15 A |
| 31 | Empty | - |
| 32 | Body Control Module (BCM) | 15 A |
| 33 | Heated Seat Control Unit | 25 A |
| Memory Seat Unit | 25 A | |
| 34 | ABS | 25 A |
| 35 | Audio Amplifier | 30 A |
| 36 | Adaptive Forward Lighting (AFL) | 10 A |
| 37 | High Beam Right Headlamp, Right High Beam Solenoid Actuator | 10 A |
| 38 | High Beam Left Headlamp, Left High Beam Solenoid Actuator | 10 A |
| 39 | Empty | - |
| 40 | Empty | - |
| 41 | Brake Booster Pump Motor | 20 A |
| 42 | Right Cooling Fan Motor | 30 A |
| 43 | Empty | - |
| 44 | 2.4L (LUK -Hybrid): Transmission Fluid Pump | 30 A |
| 45 | Left Cooling Fan Motor | 30 A |
| 46 | Cooling Fan Low Speed Relay, Left Cooling Fan High Speed Relay | 10 A |
| 47 | 2.4L (LAF), 3.0L (LF1), 2.4L (LUK): Heated Oxygen Sensors, Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor | 10 A |
| 3.6L (LLT): Camshaft Position (CMP) Actuators | 10 A | |
| 3.6L (LFX): Heated Oxygen Sensor, Multifunction Intake Air Sensor, Evaporative Emission Purge Solenoid Valves | 10 A | |
| 48 | Front Fog Lamps | 15 A |
| 49 | Right Headlamp (Low Beam) | 15 A |
| 50 | Left Headlamp (Low Beam) | 15 A |
| 51 | Horn | 15 A |
| 52 | Instrument Panel Cluster (IPC) | 5 A |
| 53 | Air Quality Sensor, Brake Booster Vacuum Switch, Inside Rearview Mirror, Rearview Camera, Active Grille Air Shutter Actuator | 10 A |
| 54 | HVAC Control Unit | 5 A |
| 55 | Outside Rearview Mirror Switch, Window Switch (Driver/Passenger Side), Garage Door Opener | 7,5 A |
| 56 | Windshield Washer Fluid Pump | 15 A |
| 57 | Empty | - |
| 58 | Empty | - |
| 59 | Secondary Air Injection Pump | 50 A |
| 60 | Heated Mirror | 7,5 A |
| 61 | Empty | - |
| 62 | Evaporative Emission (EVAP) Canister Vent Solenoid Valve | 10 A |
| 63 | Empty | - |
| 64 | Headlamp Control Unit | 5 A |
| 65 | Empty | - |
| 66 | Secondary Air Injection Pressure Sensor | 15 A |
| 67 | Fuel Pump Flow Control Module | 20 A |
| 68 | Empty | - |
| 69 | Body Control Module (BCM) | 5 A |
| 70 | Side Object Sensor (Left/Right), Rear Parking Assist Control Module | 5 A |
| 71 | Empty | - |
In the passenger compartment
Located on the driver side, behind the instrument panel.
To access, open the storage door by pulling down at the top. Press in on the sides of the door to release it from the panel. Pull the door toward you to release it from the hinge.
General view.
| Diagram | ||
|---|---|---|
 |
||
| No. | Description | Amps |
| R1 | Accessory | - |
| R2 | Empty | - |
| R3 | Rear Compartment Lid Unlatch | - |
| 1 | Steering Wheel Control Switch | 2 A |
| 2 | Body Control Module (BCM) | 15 A |
| 3 | 15 A | |
| 4 | Audio System | 15 A |
| 5 | Vehicle Communications Interface Module (VCIM) | 7,5 A |
| 6 |
|
20 A |
| 7 | 20 A | |
| 8 | Body Control Module (BCM) | 15 A |
| 9 | 15 A | |
| 10 | 30 A | |
| 11 | HVAC Control Module | 40 A |
| 12 | Circuit Breaker: Passenger Seat | 25 A |
| 13 | Circuit Breaker: Driver Seat, Seat Memory Control Module | 25 A |
| 14 | Data Link Connector (DLC) | 7,5 A |
| 15 | Inflatable Restraint Sensing and Diagnostic Module (SDM) | 10 A |
| 16 | Rear Compartment Lid Latch | 10 A |
| 17 | HVAC Control Unit | 10 A |
| 18 | Audio System / Radio | 25 A |
| 19 | Head Up Display (HUD), Info Display Module, Multimedia Player Interface Module, Radio/HVAC Control | 10 A |
| 20 | Inflatable Restraint Passenger Presence System (PPS) Module | 5 A |
| 21 | Instrument Panel Cluster (IPC) | 5 A |
| 22 | Ignition Switch | 2 A |
| 23 | Body Control Module (BCM) | 15 A |
| 24 | 15 A | |
| 25 | Empty | - |
| 26 | Accessory AC/DC Power Control Unit | 30 A |
