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Home >> Chevrolet >> 2025 >> Traverse Z71 >> Repair and Diagnosis >> Body & Frame >> Fixed And MOVEABLE Windows >> Diagnostic Information And Procedures >> DTC B1066 >> Circuit/System Verification
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit/System Verification

  1. Engine Running.
  2. Verify The E18 Rear Window Defogger Grid Turns On And Off When Pressing The Appropriate Switch On The A26 Heater And Air Conditioning User Interface Control - Front.
    • If The E18 Rear Window Defogger Grid Does Not Turn On Or Off 

      Refer To Circuit/System Testing

    • Go To Next Step: If The E18 Rear Window Defogger Grid Turns On And Off 
  3. A Fault That Is Not Currently Present May Have Been Caused By A Intermittent Condition.
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