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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 346 (Wiper System And Washer System) >> Diagnostic Information and Procedures >> DTC B3811: Rear Washer Relay Circuit >> Circuit/System Verification

Circuit/System Verification

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  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

    • If the rear window washer turns ON and OFF 
  3. All OK.
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