How to replace a clutch interlock switch on a 1997 Ford Ranger XLT
Clutch interlock should only prevent you from cranking the starter without the clutch depressed. You should be able to push start with this malfunctioning since the rotating motor is doing just what it would be if the starter worked.
Clutch interlock switch may be misaligned or faulty.
If you turn the ignition to the on position, and then press the interlock button, you don't have to press the clutch pedal down to start the truck.
It doesn't have one, it has a switch on the clutch pedal. It also has an interlock switch on the dash, turn the ignition switch on and press the interlock switch and it will bypass the clutch switch.
Inside of the clock or hood text 4434660178 for more
The interlock switch is to start the vehicle without having to press in the clutch. It took me a while to figure this out myself.
For my 1994 Nissan pathfinder, which as im told is identical under the hood, the clutch interlock relay is on the sidewall by the battery. Grab a Chilton manual that covers that year, they have a good picture of it but mine is blue and the second closest relay to the battery itself.
The clutch interlock switch is located under the dashboard and is similar if not identical to the brake light switch. you will find it where the clutch pedal extends to the furthest down position under the dash. It prevents you from starting the vehicle without depressing the clutch thus preventing starting up in gear, its a safety issue if someone is standing in front of you when you do it you will run them over, but if you need to just cross the wires.
Inspect the condition of clutch pedal rubber stop, if damaged or missing install a new one. Where necessary, disconnect interlock clutch rod at transmission end. Adjust clutch linkage by turning self-locking adjustment nut to provide 5/32" free movement at outer end of clutch fork. This adjustment will provide the required one inch free play at the pedal. Reassemble interlock rod if used.
To the best of my knowledge the inhibit clutch interlock relay will not allow the car to be started while the automatic transmission is in gear. (ie-must be in neutral or park) On manual cars there is a lockout relay which either operated the inhibitor relay or functions by itself. This is a general answer, perhaps someone has a more Nissan specific.
The manual transmission has a starter interlock which prevents the engine from cranking unless the clutch pedal is depressed