Circuit/System Testing
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Test for an open or a short to ground in the battery positive voltage circuit to the EBCM. Verify no open or a short to ground is found.
- Test the EBCM ground circuit, an open or high resistance.
- If an open or a short to ground is found, repair the circuit.
- Replace the EBCM assembly.