ON THE TCMWHAT DO THE LETTERS YJKU STAND FOR? ...

  • Tiny
  • brianprimeaux
  • 2005 Saturn Vue
  • 130,000 miles

On the tcm, what do the letters YJKU stand for? Serial #12202143 on tcm. Can I replace unit with same model # but defferent letters?

Sunday, February 3rd, 2013 AT 9:24 PM

13 Answers

  • Tiny
  • saturntech9
  • Expert
  • 28,243 posts

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?

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Sunday, February 3rd, 2013 AT 9:52 PM
  • Tiny
  • brianprimeaux
  • Member

Throws code p2637 4 cyl runs bad installed new plugs. Engine in safe mode

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Sunday, February 3rd, 2013 AT 10:43 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,243 posts

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

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Sunday, February 3rd, 2013 AT 11:43 PM
  • Tiny
  • brianprimeaux
  • Member

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

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Monday, February 4th, 2013 AT 11:05 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,243 posts

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.

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Tuesday, February 5th, 2013 AT 2:26 AM
  • Tiny
  • brianprimeaux
  • Member

Wont reset. Buying refurb. Unit thanks for help

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Tuesday, February 5th, 2013 AT 10:49 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,243 posts

Your welcome.

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Wednesday, February 6th, 2013 AT 1:19 AM
  • Tiny
  • brianprimeaux
  • Member

Replaced tcm runs great .

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Friday, February 8th, 2013 AT 11:32 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,243 posts

Glad to hear it.

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Saturday, February 9th, 2013 AT 2:48 AM
  • Tiny
  • brianprimeaux
  • Member

Still curious about letters on tcm. YJKU any idea?

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Monday, February 11th, 2013 AT 12:53 AM

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