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Reference Information Schematic Reference Hydraulic Brake Schematics Connector End View Reference Hydraulic Brake Connector End Views Description and Operation Brake Warning System Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Circuit/System Verification Observe the scan tool BCM Park Brake Switch parameter while applying and releasing the park Circuit/System Testing 1. Ignition OFF, disconnect the harness connector at the park brake switch. 2. Ignition ON, verify the scan tool BCM Park Brake Switch parameter is Released. If not the specified value, test the signal circuit terminal A for a short to ground. If the 3. Install a 3A fused jumper wire between the signal circuit terminal A and ground. Verify the scan tool BCM Park Brake Switch parameter is Applied. If not the specified value, test the signal circuit for a short to voltage or an open/high 4. If all circuits test normal, test or replace the park brake switch. Repair Procedures
2007 Hummer H3 2007 BRAKES Park Brake - H3
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