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Master Switch

Remove master switch. See WINDOW SWITCH  under REMOVAL & INSTALLATION. Check for continuity between terminals as specified while operating switch. See MASTER SWITCH TESTING table. See Fig 1 . If continuity does not exist, replace switch.

MASTER SWITCH TESTING

Switch Position Continuity Between Terminals No.
Neutral 9 & 15; 8 & 14; 6 & 12; 7 & 13
Left
Up 6 & 10; 7 & 13
Down 10 & 13; 6 & 12
Right
Up 8 & 11; 9 & 15
Down 11 & 15; 8 & 14
Fig 1: Identifying Master Switch Terminals
G97A28175Courtesy of FORD MOTOR CO.