I have a 2001 Lightning and installed a superchip a few weeks ago. Ever since I installed the chip, the cruise control does not work. I can turn the cruise control light on and off using the control on the wheel but it will not set to cruise. I checked the pins on the chip, looked at the fuse box and made sure all connections are tight. I even took the chip out and it still did not work. Does anybody have any other advice? Any input would be appreciated. Thank You.

Todd

 

are you absolutely POSITIVE you don't have a blown fuse?

Tony

 

easiest way to check for blown fuse is to honk the horn. They are on the same fuse.

 

yeah, the horn works, thanks for the reply, after fiddling with the fuses I can't even get the cruise control light to come on in the dash. I just hate taking it in for service for something that is probably staring me in the face. Any more? Thanks again. Todd

 

TLockwo,

I posted this about two months ago...


I had the same problem on my Y2K at 5300 miles.

First it was intermittent operation, I couldn't acertain any rhyme or reason.

Knowing intermittent problems are (nearly) impossible to fix, I continued trying to see if I could somehow identify the conditions that were causing it to not enguage.

Then one time while driving it "released" and never worked again. After about a week I scheduled the appointment for service on a Monday morning hoping I would be driving it home that eve.

Well... it took all week!

I will now type the exact verbage on my service record for you. I don't understand all of it but maybe this will help your dealer.

Here goes:

Road test vehicle cruise control- INOP.
Perform cruise control self test- system passed.
Performed pinpoint test for cruise with no codes, checked all power circuits, Ground C circuits, brake lamp circuits, All OK. Replaced cruise control servo, still INOP.
Re-ran pinpoint test, at end of test found no signal from VSS, this leads you to GEM module and circuits NGS test GEM retrieved Code PO500.
Performed pinpoint test for this code, leads you to replace GEM.
Swap GEM with known good GEM, road test still INOP.
After further diag. without book (only EVTM), found no VSS from PCM, checked VSS going into PCM and had a good signal. Measured pin 60 (A.C. volts), no voltage. Compared to like vehicle and that vehicle had 6 volts A.C. as book specified.
Called for approval P90MR, replaced PCM, verified repair.


So it looks like it was the PCM.

Apparently it is expensive and required approval.

As I said it took all week but they gave me a rental Monday eve. and kept me informed each day as they were continuing to resolve.

I also got a free tire rotation and alignment for my patience and understanding.

Good Luck to you...XLT_D

 

XceLenT Driver, you think the chip or the install of the chip had anything to do with TLockwo's problem? I'm considering a chip and am just curious.

 

Thanks so much for the post, im gonna look into the pcm, i was hoping it might have been a bent pin off the harness, but they are all straight, thanks again for the info.

Todd

 

Robdude30,

I am not a Ford tech!... but given the number of chips in use I doubt the chip is at fault.

Today's automotive electrical systems are becomimg increasingly more complex and integrated. Remember, I said it took ONE WEEK for Ford to fix mine.

So, when you (anyone) begin making modifications to electrical systems, it is possible to damage something. Even something (physically) "no where near where you were working".


I have heard of a few other cruise controls failing in the first year and believe this (Tlockwo) was just another one of those.

XLT_D

 

Thanks XceLenT Driver!

 

This might sound goofy to all of you, but...
I had the sam problem in my '97 cruise worked then wouldnt then did again.
asked mechanic friend and he said same thing if horn honks then fuse no blown.
As it turns out my manual was incorrect for my truck and in fact the cruise and the HVAC blend door were on the same circuit and that fuse wasn't blown BUT--the fuse bix was a lottle sloppy and I had to bend one leg of the fuse a lottle to get it to make good contact. This explained the intermittent problem.

My manual was a first printing and I needed a second printing manual -this is how I identified the correct fuse in the first place-since it was sprong I didnt notice that the HVAC belnd door was not working

 

Do you remember what fuse it may be, Mine has also quit working. Early 97. purchased in Jan 96

 

Trying to solve a inop cruise contorl on my ealry 97 (jan 96 also). Anyhelp on what to do or what fuse.
Actually my fuse box cover (where it lists the fuse #'s doesn't mathc whats in the owner;s manual. I checked them all, all seem good.

 

KYFordfreak
You are correct in that all your fuses may not be blown, mine werent blown either. The puse box itself had a loose fuse slot.
I had to bend the legs of the fuse in opposite directions just a little to get it to hold tight. The best thing I know of to look for is to check and see if the HVAC temp controls and the power mirrors (if you have them) will work. If they do then you more than likely do not have the same problem as I did.
My manual that came with my truck said that the fuse that actually controls my cruise, temperature for the HVAC and power mirrors was not used. A second printing manual gave me the correct fuse listing.
If I remember correctly it is fuse 18 under the dash (I may be incorect if you need me to I will get the pages that I copied from the other manual out of my truck)
Good luck

 

myfordliveson
Well, we must not be dealing with the same problem. I'm not sure about my power mirros but all my heating and blower postions seem to be working. I know I had heat on panel and floor this morning.
I've rechecked every fuse that according to my manual would even be close to the crusie control and all are fine. Didn't recheck any other fuses.
I did find that the brake pressure switch (is that correct) on the front of the master cylinder was full of brake fluid. I tried spraying wd40 in it to displace the brake fluid and then a cleaned it out with q-tips and rags. Didn't fix the crusie, still wondering how it got in there. Might try a new one and see if that helps. I do not think this part has anything to do with the crusie control but it still cannot be good.
I still can't help to think that I pulled a wire loose somewhere when I took the headlight switch out. I laid on my back in the floorboard breaking my neck but didn't see a thing. Gotta wait till I take it apart for new bulbs and guages or take it in and let Ford fix it?
It might help if you could send me that second printing fuse diagram. According to my first edition printing (dated sept 95) fuse 18 is a 10a fuse right low beam.
Thanks for trying to help, there's not much info out there in the repair manuals. I gotta get me one of those factory mauals on CD.
My email is thomaswright5714@hotmail.com if you need and address to send the copies to.

 

TTT