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Home >> GMC >> 1998 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Anti-Lock Brake System) >> Diagnosis >> System Description

System Description

WARNING: This page is about a different car, the 1997 GMC Safari and 1997 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

The diagnostic system check is an organized approach to identifying a problem created by an ABS malfunction. It must be the starting point of any ABS complaint diagnosis because it directs to the next logical step in diagnosing the complaint.

Serial data is exchanged by EBCM through harness connector C1, terminal "F", and Class 2 data is exchanged through harness connector C1, terminal "G". EBCM is supplied switched ignition voltage through harness connector C1, terminal "A", and ground is provided through harness connector C1, terminal "J".

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