If the unit does not come already programmed. It would act as if not computer was installed (just lights). A used ECU could be used for tested or to repair but a new unit needs to be programmed and updated. If it was already programmed and justed needed to be reflashed then you have other problems.
Will a scan tool communicate with all the vehicle control modules , any DTC'S - diagnostic trouble codes stored ? Not a code reader , a professional scan tool . That's the place to start , not guessing an just replacing parts . Who diagnosed bad PCM ?
SOURCE: 2004 Chevy Tahoe Ignition is Off, Radio, Windows, Dash stay on
it needs to go to a dealer or mechanic as anything involved with the ignition is behind that area.
SOURCE: 2000 lincoln ls ignition key will not turn
try tapping the end of the key gently with a small hammer while trying to turn it this happens alot on Ford Escape and Focus
SOURCE: WON'T START..NEW BATTERY ..DEALER CANNOT DIAGNOSE
remove the sparkplugs and clean the heads with a wire brush and test to see if the gap is rite
SOURCE: 2004 lincoln navigator wont turn over. Had starter
have your battery and alternator tested. sounds like battery. No need to replace cable unless it is frayed or in poor conditin.
SOURCE: 2003 Lincoln LS V8, Won't turn over after errors
Forget the four coils. That is a common problem,but I would question 4 failing.
The ABS ,Parking Brake,Speedo Etc,where nothing to worry about,you were loosing power, when it went to fail safe,so they came up.
ETC -is Electronic Throttle Control, your problem? Maybe
You will need to have a scanner put on it's,daignostic connector under the dash,to check for codes. Them only a trained technician can follow a chart or test proceedure to properly repair.
I have a 2004 LS,one of Ford most high tech and complicated vehicles.
Conclusion: only a professional can repair you car.
I would start with a local shop. If money you have money to throw away,go to a dealer.
Most likely have to wave to it on a flat bed carrier. Don't flat tow it.
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