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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 223 (Wiper System And Washer System) >> Diagnostic Information and Procedures >> Washer Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the scan tool Windshield Washer Switch parameter changes between Active and Inactive when pressing the Windshield Washer Switch.
    • If the parameter does not change 

      Refer to Circuit/System Testing - Windshield Wiper/Washer Switch Malfunction.

    • If the parameter changes 
  3. Verify the G24 Windshield Washer Pump activates and deactivates when commanding the Windshield Washer Relay Active and Inactive with a scan tool.
    • If the G24 Windshield Washer Pump does not activate or does not deactivate 

      Refer to Circuit/System Testing - Windshield Washer Pump Malfunction

    • If the G24 Windshield Washer Pump activates and deactivates 
  4. All OK.
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