Remove the screw and the power window master switch (A) from the door panel. Disconnect the 14P connector (B) from the switch.

Check for continuity between the terminals in each switch position according to the table. Driver's Switch: The driver's switch is combined with the control unit so you cannot isolate the switch to test it. Instead, run the master switch input test procedures on page 22-36. If the tests are normal, the driver's switch must be faulty. If the switch is faulty, remove the two screws and replace the switch.