Check Engine Light and AT light : U0101 TCM issue - Page 3 - Mazda3 Forums : The #1 Mazda 3 Forum
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post #21 of 23 (permalink) Old 08-24-2017, 10:41 AM
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... The code on the newest one is . P0762 at shift solenoid... So in my case after lots of money down the drain. It was a different problem altogether ....
Sounds like perhaps there were 2 separate issues. The U0101 pointed to a bad TCM, and the new part fixed that. Now that the TCM can communicate properly, the bad solenoid code is able to be sent to the ECM. IIRC, there's at least one (if not more) good solenoid threads in the archive that should help you on this issue.

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post #22 of 23 (permalink) Old 08-24-2017, 05:23 PM
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Well even though this thread is dead. Id like to let ppl know that I bought 3 different tcms. All needing keys reprogrammed... And im still having problems.... The code on the newest one is . P0762 at shift solenoid... Comes up twice.... So in my case after lots of money down the drain. It was a different problem altogether.... I bought a tcm from a good reputation dealer called flagship one for 230. They program it to your VIN.
In post 17 you mentioned the TCM being next to the battery. Unless something was different in 2004 this is NOT the TCM. What you have been replacing is the ECM (engine computer). The TCM is located on the top of the transmission and as others have stated should not need reprogramming.
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post #23 of 23 (permalink) Old 10-31-2019, 03:11 PM Thread Starter
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Happy to report that I have since sold the car but stay in contact with new owner. No trans issues at all.
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Check Engine Light and AT light : U0101 TCM issue - Page 3 - Mazda3 Forums : The #1 Mazda 3 Forum This thread Refback 05-08-2018 03:27 PM
Check Engine Light and AT light : U0101 TCM issue - Page 2 - Mazda3 Forums : The #1 Mazda 3 Forum This thread Refback 05-27-2017 05:16 AM
Check Engine Light and AT light : U0101 TCM issue - Mazda3 Forums : The #1 Mazda 3 Forum This thread Refback 05-26-2017 08:39 PM
Check Engine Light and AT light : U0101 TCM issue - Mazda3 Forums : The #1 Mazda 3 Forum This thread Refback 05-26-2017 08:36 PM
Thread Check Engine Light and AT light : U0101 TCM issue | FMVperformance.com : The site for all your Ford Mazda and Volvo needs | BoardReader This thread Refback 04-29-2016 12:09 AM
FMVPerformance.com Network: The sites for all your Ford Mazda and Volvo Needs This thread Refback 11-09-2015 08:11 AM

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