Wiring Diagram Cluster

2012 Buick LaCrosse AWD Starter Wiring Diagram

Find starter circuit schematics, relay paths, and ignition-switch to solenoid wiring references for this vehicle.

Matched Diagrams

48

Variant Used

LaCrosse AWD V6-3.6L

Total Vehicle Diagrams

3990

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OEM source

Factory Manual Evidence

When there is no clean repair shortcut for this system, drop into the OEM manual sections that usually carry the authoritative test path.

2012 Buick LaCrosse AWD External Pages β†’

Diagnostic signal

Codes Often Seen With This System

Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.

B1318: Battery Voltage Low β†’

Top Starter Diagram Paths

1.Sensors and Switches - Starting and Charging > Ignition Switch β€” Ignition Mode Switch (BTM)Starting and ChargingOpen2.Sensors and Switches - Starting and Charging > Ignition Switch β€” Ignition Switch (without BTM)Starting and ChargingOpen3.Starting System > Ignition Switch β€” Ignition Mode Switch (BTM)Starting and ChargingOpen4.Starting System > Ignition Switch β€” Ignition Switch (without BTM)Starting and ChargingOpen5.Sensors and Switches - Starting and Charging > Ignition Switch β€” Ignition Mode Switch (BTM)Sensors and SwitchesOpen6.Sensors and Switches - Starting and Charging > Ignition Switch β€” Ignition Switch (without BTM)Sensors and SwitchesOpen7.Connector Views > Connector End Views By Name > Crankshaft Position SensorGeneralOpen8.Connector Views > Connector End Views By Name > Ignition Switch (without BTM)GeneralOpen9.Connector Views > Connector End Views By Name > Starter Motor X1GeneralOpen10.Connector Views > Connector End Views By Name > Starter Motor X2GeneralOpen11.Connector Views > Crankshaft Position SensorGeneralOpen12.Connector Views > Ignition Switch > Ignition Mode Switch (BTM)GeneralOpen13.Connector Views > Ignition Switch > Ignition Switch (without BTM)GeneralOpen14.Connector Views > Multiple Junction Connector > Connector End Views By Name > Crankshaft Position SensorGeneralOpen15.Connector Views > Multiple Junction Connector > Connector End Views By Name > Ignition Switch (without BTM)GeneralOpen16.Connector Views > Multiple Junction Connector > Connector End Views By Name > Starter Motor X1GeneralOpen17.Connector Views > Multiple Junction Connector > Connector End Views By Name > Starter Motor X2GeneralOpen18.Connector Views > Starter Motor > Starter Motor X1GeneralOpen19.Connector Views > Starter Motor > Starter Motor X2GeneralOpen20.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > Auxiliary Power OutletGeneralOpen21.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G100GeneralOpen22.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G101GeneralOpen23.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G102GeneralOpen24.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G103GeneralOpen25.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G106GeneralOpen26.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G109GeneralOpen27.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G110GeneralOpen28.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G111GeneralOpen29.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G120GeneralOpen30.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G121GeneralOpen31.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G122GeneralOpen32.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G123GeneralOpen33.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G201 (1 of 2)GeneralOpen34.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G201 (2 of 2)GeneralOpen35.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G202 (1 of 2)GeneralOpen36.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G202 (2 of 2)GeneralOpen37.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G203GeneralOpen38.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G204GeneralOpen39.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G302GeneralOpen40.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G303GeneralOpen41.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G305GeneralOpen42.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G307GeneralOpen43.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G401GeneralOpen44.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G403GeneralOpen45.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G404GeneralOpen46.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution Schematics > G405GeneralOpen47.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ignition Lock SchematicsGeneralOpen48.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Power Distribution SchematicsGeneralOpen

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