Do you have a 4cyl or V6 engine?Not sure what the letters mean but if I get a little more info I can help you out.So why does it need a TCM?

Answered by saturntech9 (expert)
23,181 answers provided

throws code p2637 4 cyl runs bad installed new plugs. engine in safe mode

Response from brianprimeaux
2 questions asked

That's the only code you have?Does it run rough at idle and down the road like you have a engine miss?

Answered by saturntech9 (expert)
23,181 answers provided

only code, it runs rough at idle ,wont accelerate engine in power saver mode (engine light with downward arrow)

Response from brianprimeaux
2 questions asked

It does say reset the code ad if the code comes back you have a bad to replace the tcm.Not sure what years will work if you get a used tcm make sure you get it reflashed at the dealer.

Answered by saturntech9 (expert)
23,181 answers provided

wont reset. buying refurb. unit thanks for help

Response from brianprimeaux
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Your welcome.

Answered by saturntech9 (expert)
23,181 answers provided

replaced tcm runs great .

Response from brianprimeaux
2 questions asked

Glad to hear it.

Answered by saturntech9 (expert)
23,181 answers provided

still curious about letters on tcm. YJKU any idea ?

Response from brianprimeaux
2 questions asked