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Ignition Switch

Disconnect ignition switch harness connector. Check continuity between specified terminals with switch in appropriate position. See IGNITION SWITCH CONTINUITY TEST  table. See Fig 1 . If continuity is not as specified, replace ignition switch.

IGNITION SWITCH CONTINUITY TEST

Switch Position Between Terminals No. Continuity
Run Power Circuit
Off 1 & 6; 2 & 7 No
Accessory 1 & 6; 2 & 7 No
Run 1 & 6; 2 & 7 Yes
Start 1 & 6; 2 & 7 No
Run/Start Power Circuit
Off 5 & 7 No
Accessory 5 & 7 No
Run 5 & 7 Yes
Start 5 & 7 Yes
Run/Acc Power Circuit
Off 1 & 4 No
Accessory 1 & 4 Yes
Run 1 & 4 Yes
Start 1 & 4 No
Start Power Circuit
Off 1 & 3 No
Accessory 1 & 3 No
Run 1 & 3 No
Start 1 & 3 Yes
Key Reminder Circuit
Key Out 7 & 8 No
Key In 7 & 8 Yes
Fig 1: Identifying Ignition Switch Terminals
G00011094Courtesy of FORD MOTOR CO.