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Home >> Saturn >> 2007 >> Vue Red Line, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 986 (Wiper System & Washer System) >> Diagnostic Information and Procedures >> Windshield Wiper Washer System Malfunction >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2008 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Windshield Wiper/Washer Switch Circuit Malfunction

  1. Ignition OFF, disconnect the harness connector at the Windshield Wiper/Washer switch.
  2. Ignition ON, test for 12 volts between accessory voltage circuit terminal D and ground.
    • If not the specified value, test the accessory voltage circuit terminal D for a short to ground. If the circuit tests normal, replace the BCM.
  3. Ignition ON, verify the scan tool Windshield Washer Switch parameter is Inactive.
    • If not the specified value, test the control circuit terminal B for a short to B+. If the circuit tests normal, replace the BCM.
  4. Install a 3A fused jumper wire between the control circuit terminal B and B+. Verify the scan tool Windshield Washer Switch parameter is Active.
    • 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.
  5. If all circuits test normal, test or replace the Windshield Wiper/Washer switch.

Washer Pump Circuit Malfunction

  1. Ignition OFF, Disconnect harness connector at Windshield Washer Fluid Pump.
  2. 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 controll circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  3. Install a test light between control circuit terminal A and ground circuit terminal B at the windshield washer fluid pump connector
  4. 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.
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