Ford Repair: 1994 ford explorer xlt 4x4 check engine light, ford explorer xlt, fuse block


Question
My check engine light goes off and on repeatedly on my 94 ford explorer xlt. Is there a way to retrieve the code by making the check engine light blink or test light blink? If so how?

Answer
James,

Yes, but it is a bit tricky without a book.  There is a self test connector under the hood. It is usually in a small black holder clipped on the fuse block. There is a small single wire with a connector. ground that wire.

Now turn the key on, do not start.  You will hear the relays click, fans cycle and all sorts of stuff. This is a normal self test. Now watch the check engine light. First a few quick flashes then after about a minute it will start flashing codes. Now your explorer uses three digit codes. so a flash pattern (I  III  IIII) would be code 134. It will repeat each code twice.  A code 111 is everything normal. Next, you get a long single flash. This is called the separator code.  Every code before the separator is a current problem. Every code after the separator is a memory code meaning it happened before, but it is not doing it now.

Whew, I should write a web forum with pictures...:) maybe someday.

Good Luck and let me know what codes you get.