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TCM and a ECM - Are they separate?

 
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Old 16 Nov 2009, 10:48 pm
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Default TCM and a ECM - Are they separate?

I am getting codes for a faulty TCM. I can't locate a separate TCM unite just the main ECM however I do see some sites that have teh TCM available and it looks like a different unit.

Does my 2002 PT Cruiser (Automatic) have a TCM and an ECM or is it all in one unit?

Thanks, I'll be checking back frequently for a response so I can get one ordered to my VIN ASAP.
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Old 17 Nov 2009, 09:14 am
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Default Re: TCM and a ECM - Are they separate?

Anyone know the answer today? I've been searching for hours now and still nothing definitive.
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Old 17 Nov 2009, 11:29 am
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Default Re: TCM and a ECM - Are they separate?

I beleive they were separate, but combined from '06 on - but I am not certain, sorry.
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Old 17 Nov 2009, 11:32 am
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Default Re: TCM and a ECM - Are they separate?

That's what I'm leaning towards as well. When I get home today I am going to take off the inner fender and see if I can locate it.

Part of me wants to order a TCM right now, the other part wants to make sure that its not a wiring, corrosion, etc issue - I am pretty sure I will be needing a TCM however...
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Old 17 Nov 2009, 12:44 pm
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Default Re: TCM and a ECM - Are they separate?

The TCM is separate (at least in the early years and you can't swap different years. I can't exactly place where it is but I'll have a picture up in a minute to show it.


Last edited by CREWZIN; 17 Nov 2009 at 12:53 pm.
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Old 17 Nov 2009, 12:53 pm
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Default Re: TCM and a ECM - Are they separate?

Cool, thanks I appreciate it. I know I need to get the same-same, I've found a few rebuilt units from multiple websites that set it up to your vin, car, etc. that I would probably go with but I want to get to it and do a bit more investigation before I pull the trigger.

Last edited by probesport; 17 Nov 2009 at 12:57 pm.
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Old 17 Nov 2009, 04:23 pm
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Default Re: TCM and a ECM - Are they separate?

Our 2008 had a problem with shifting, took it to the dealer and they reflashed the TCM & ECM. By that I would say the later models were separate also. BTW: it took care of the shifting problem, what the ECM had to do with it IDK!!
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Old 21 May 2012, 08:09 pm
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Default Re: TCM and a ECM - Are they separate?

Have the same issue with a 2002 PT.
Found a How To:

how do you remove the TCM on 2002 P.T. cruiser - JustAnswer

Hope that helps.
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