Washer Pump Circuit Malfunction
WARNING: This page is about a different car, the 2010 Saturn Outlook, 2010 GMC Acadia, 2010 Chevrolet Traverse, and 2010 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, Disconnect harness connector at Windshield Washer Fluid Pump.
- Ignition ON, test for B+ at control circuit terminal A of Windshield Washer Fluid Pump connector while activating washers.
- If not the specified value, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
- Install a test light between control circuit terminal A and ground circuit terminal B at the windshield washer fluid pump connector
- The test lamp should turn ON and OFF when the windshield washers are commanded ON and OFF.
- If not the specified value, test the ground circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.