Wipers work with key off

[Witness7]

I no this is not suppose to happen, but for some reason my window wipers work with key off when I turn on the wiper switch, the fuse 16 30 amp gets fire when ignition is turned off and key out of ignition. Anyone know how to fix this problem I know there not suppose to come on with ignition off but for the life of me I cannot so far find out what is causing this... Thanks

1996 Ford Ranger 3.0 4x4 manual transmission

 

[Curious Hound]

First, make sure you are looking at the right fuse.

Second, the diagrams I have looked at confirm that the wipers should only get power with the key in run or acc positions. But these were not absolute guaranteed "1996 Ranger" diagrams. I know they are close enough for my '93 and I would expect '93 and '96 to be extremely similar if not identical.

If you do have power at the fuse for the wipers with the key off/out of ignition, I would begin by looking at the ignition switch or the wiring connector on the ignition switch.

 

[adsm08]

I agree. The ignition switch is the most likely culprit. Start by unplugging it and see if the wipers still work. If they don't you found the problem.