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Home >> GMC >> 2018 >> Terrain SL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System And Washer System >> Diagnostic Information And Procedures >> DTC B3873: Front Washer Relay Circuit >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the G24 Windshield Washer Pump activates when commanding the Windshield Washer Relay On and Off with a scan tool.
    • If the G24 Windshield Washer Pump does not activate 

      Refer to Circuit/System Testing

    • Go to next step: If the G24 Windshield Washer Pump activates 
  3. All OK.
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