2016 MUSTANG GT ECU

[Bhuvan.314]

How can you see a short? There doesn't have to be anything physically wrong with the card, for it not to work, or be broken. Was the point I was making. Also, did you shine a light behind it and look for microcracks, etc..

I agree that may be components are damaged internally . There are no visible cracks on the motherboard tough

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[Bhuvan.314]

IIRC, and I’m trying to recall where I saw it, but if the vehicle was in an accident and hit hard enough to damage the frame, did any of the air bags deploy?

If the airbags have deployed, I believe there is a procedure for resetting those and without doing the reset procedure it may affect the main ECU operation. Also I think the air bag modules all have to be replaced and there may even be a seatbelt sensor on the front belts that has to get replaced.

I know there’s a few guys on here who have rebuilt salvage S550’s in the “project” section. You may want to reach out to one of those guys and see if they can any additional advice.

Have you checked all of the body harnesses (engine bay, trunk area and along the interior to dash) for any breaks?


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One other thing to mention too - with an S550 if it has had any major work where the transmission was separated from the engine OR the engine was moved from the vehicle, there is a crank sensor relearn procure that must be followed. If this is not done, that will also cause you some pains... some folks have said you must do the relearn process a minimum of 5x back to back, others have had it work on the initial attempt. Try the relearn procedure before doing anything else and see if that resolves your starting and idle problems.

Here is the Ford SSM about the crank relearn procedure:

Yes the airbags were deployed . I replaced them all and the srs module has been reset and put back in .
Initially the fusebox wiring harness was ripped from front end but i repaired it . The seatbelts were fine so nothing was changed there.
I appreciate your help . Didnt knew about the relearning process.

 

[Bhuvan.314]

Obd scanner report

 

[Juambon]

Did you manage to fix it? Any updates? I wrecked my 2017 V6, and this issue is waiting for me once I'm able to get the car running again.

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