One Mirror Does Not Operate (All Except Probe)
Remove door trim panel. Verify wiring harness is connected to motor. Using test light, check for circuit continuity in harness connector by operating switch. See Fig 1 . If there is no continuity, trace circuit to connector in floor console panel and check circuit for loose wires and connectors. If continuity is correct, replace motor assembly.
Fig 1: Power Mirror Terminal Locations & Switch Continuity Logic Tables (Continental, Cougar, Mark VII, Mustang, Thunderbird & Town Car)
Fig 2: Power Mirror Terminal Locations & Switch Continuity Logic Tables (Crown Victoria, Escort, Tempo & Topaz)