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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 333 (Hydraulic Brake System) >> Diagnostic Information and Procedures >> Brake Warning Indicator Malfunction (Without UJ1) >> Circuit/System Description

Circuit/System Description

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