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Home >> Buick >> 2015 >> Verano Base >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Wiring Systems And Power Management - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC B144A: RUN Power Relay Circuit. >> Circuit/System Description

Circuit/System Description

The body control module (BCM) controls the steering wheel heater relay through the control circuit by applying voltage to the ignition run relay coil control circuit. The steering wheel heater relay is energized when the ignition ON or when a remote start is requested.

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