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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Body & Frame >> Fixed And MOVEABLE Windows >> Diagnostic Information and Procedures >> DTC B3821 or B3824 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, command the rear passenger power windows UP and DOWN with a scan tool, the rear passenger power windows should perform the UP and DOWN command.
  2. Observe the scan tool Window Lockout Switch parameter while pressing and depressing the window lockout switch on the driver master control. The reading should change between ON and OFF.