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Home >> GMC >> 1996 >> Forward Control 7.4 J >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock System >> Testing >> Rear Power Door Lock Switch Does Not Unlock Doors

Rear Power Door Lock Switch Does Not Unlock Doors

  1. Disconnect rear power door lock switch connector. Connect self-powered test light between rear power door lock switch terminals "D" (Orange wire) and "E" (White wire). Press rear power door lock switch.
  2. If test light comes on, repair open circuit in White wire. If test light does not come on, replace rear power door lock switch.