GM Service Manual Online
For 1990-2009 cars only

Observe the following general precautions during any ABS/TCS/VSES service. Failure to adhere to these precautions may result in ABS/TCS/VSES system damage.

    • Disconnect the EBCM harness connector before performing electric welding procedures.
    • Carefully note the routing of the ABS/TCS/VSES wiring and wiring components during removal. The ABS/TCS/VSES components are extremely sensitive to EMI (electromagnetic interference). Proper mounting is critical during component service.
    • Disconnect the EBCM connector with the ignition OFF.
    • Do not attempt to repair the BPMV or any other non serviceable ABS/TCS/VSES components where noted in this section. Many ABS/TCS/VSES components are serviceable by component replacement only.
    • Do not hang the suspension components from the wheel speed sensor cables. The cables may be damaged.
    • Do not subject the EBCM to temperatures of more than 85°C (184°F).
    • Do not use petroleum based fluids in the master cylinder. Do not use any containers previously used for petroleum based fluids. Petroleum causes swelling and distortion of the rubber components in the hydraulic brake system, resulting in water entering the system and lowering the fluid boiling point.
    • After service, inspect the ABS/TCS/VSES system using a scan tool.