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Home >> Hummer >> 2009 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Shift Lock Control System) >> Diagnostic Information and Procedures >> Transmission Control Lever Malfunction >> Circuit/System Description

Circuit/System Description

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The body control module (BCM) controls the shift lock solenoid by providing battery voltage to the shift lock control solenoid. The BCM utilizes a smart driver to control the voltage supplied to the shift lock solenoid. The smart driver monitors the voltage and current flow of the control circuit.

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