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Home >> GMC >> 2021 >> Terrain SLE, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 90 (Wiper System And Washer System) >> Diagnostic Information and Procedures >> DTC B3811 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the rear window washer turns ON and OFF when commanding the Rear Washer Relay Active and Inactive with a scan tool.
    • If the rear window washer does not turn ON and OFF 

      Refer to Circuit/System Testing

    • Go to next step: If the rear window washer turns ON and OFF 
  3. All OK.
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