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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System & Washer System >> Diagnostic Information and Procedures >> DTC B3922 >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF, disconnect the C1 harness connector at the turn signal/multifunction switch.
  2. Ignition ON, verify the scan tool Windshield Wiper Switch parameter is not Switch Fault.
    • If Switch Fault, test the windshield wiper switch low signal circuit terminal L for a short to ground. If the circuit tests normal, replace the BCM.
  3. If all circuits test normal, test or replace the turn signal/multifunction switch.
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