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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1326 (Antilock Brake System - Hybrid (Hp2)) >> Diagnostic Information and Procedures >> DTC C0161 or C127D >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON, use a scan tool to observe the EBCM Brake Switch Status parameter while applying and releasing the brake pedal. The reading should change between Applied and Released.

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