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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 118 (Hydraulic Brake System) >> Diagnostic Information and Procedures >> Brake Warning Indicator Always On >> Circuit/System Description

Circuit/System Description

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The body control module (BCM) sees the park brake switch signal grounded, it sends a serial data message to the instrument panel cluster (IPC) requesting illumination of the Red Brake Warning indicator.

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