Clutch/Starter Interlock Switch

Disconnect wiring connector at switch by flexing retaining tab. Test electrical continuity of switch using an ohmmeter. Switch should be open (infinity) when pedal is up and clutch is engaged. Switch should be closed (zero ohms) when clutch pedal is pressed to floor. On all models except "E" Series, if switch does not function as specified, replace switch.
On "E" Series models, if switch does not operate properly, check position of self-adjusting clip. Adjust switch by removing both halves of clip and positioning clip closer to switch body. Reset switch by depressing clutch pedal to floor. If switch still does not operate properly, replace switch. See Fig 1 or Fig 2.

Fig 1: Clutch/Starter Interlock Switch & Components ("E" Series)

Courtesy of FORD MOTOR CO.

Fig 2: Clutch/Starter Interlock Switch & Components (Except "E" Series)

Courtesy of FORD MOTOR CO.