15austin

My wife's 94gt fan stays on when the key is on. It just started doin this couple days ago. What could be the problen?

15austin

Not only does the fan stay on, the fuel pump stays on and the IAC is humming. All this with the key on and the engine not running. Anyone tell me something????

AdderMk2

sounds like there may be a problem in the CCRM

15austin

I had the part in mind, is there anyway I can test it to see if is bad? I tried tapping on it, but nothing. I hate to spend $174 at Auto Zone and it not be the problem.

mjr46

un plug it and see what happens, you'd have to use a wiring diagram and check the input command vs output commands, most likely is a bad ccrm, if you can find a test one to borrow, that'd be ideal

MADMAC

Check this site out for some troubleshooting info. Just one of many sites with good info. http://www.mustang-tech.org/wiki/94-...lectrical_CCRM

15austin

I saw that site b-4. That is for a ccrm that is not recieving power. Mine is and everything is on. I tried to find a diagnostic page on my symtoms but no luck.

MADMAC

Don't need diagnostic for continuos power. Pull the CCRM and check pins for continuity between the relay contacts. If they are locked or welded closed you will have continuity. Problem solved Replace the CCRM

Trouble shoot/follow your grounds.

With the connector loose check your power points. Find out if your EEC is holding your relays shut.

Just follow the diagrams and OHMS Law you can't go wrong.

Note that with your fan and fuel pump running all the time, the relays are closed. Why is the question?