Component Tests: Switch

Key OFF.
Remove and disconnect the outside rear view mirror control.

Fig 1: Disconnecting Outside Rear View Mirror Control
Courtesy of FORD MOTOR CO.
Measure the resistance between the following terminal pins of the outside rear view mirror control:

Fig 2: Measuring Resistance Between Terminal Pins Of Outside Rear View Mirror Control:
Courtesy of FORD MOTOR CO.

Fig 3: Mirror Diagnostic Chart
Courtesy of FORD MOTOR CO.
If the outside rear view mirror control fails any of the above tests, replace it. Otherwise, return to the pinpoint tests.