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Home >> Buick >> 2012 >> Regal GS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Shift Lock Control System) >> Diagnostic Information and Procedures >> DTC B270A >> Circuit/System Description

Circuit/System Description

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The body control module (BCM) controls the transmission shift lock control solenoid actuator by providing a battery positive voltage to the solenoid when the brake pedal is applied. The BCM monitors the voltage and current flow of the control circuit.

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