Code U0101?

2015 CHEVROLET MALIBU

180,000 MILES • 2.5L • 4 CYL • 2WD • AUTOMATIC

CRAIG A S

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The transmission control module lost signal. I called the dealership they told me the TCM is built in the ECM on my car, but I can’t find a diagram on my car anywhere to try and figure out the problem causing the code.

Sep 19, 2022 at 6:15 PM

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JACOBANDNICKOLAS

AUTOMOTIVE REPAIR CONTRIBUTOR
110,190 POSTS

Hi,

The code indicates an issue with the powertrain control module. Are there any other codes set? Also, what is the vehicle doing?

As far as wiring, I'm not sure exactly what you are looking for, so since the code deals with the powertrain control module, I attached the schematics for the entire circuit.

In my manual, the schematics are six pages long. I had to cut each one in half to make them readable for you. I did overlap them so you can follow from one to the next.

Additionally, here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

Let me know if this helps.

Take care,

Joe

See pics below.

Images (Click to enlarge)

Sep 20, 2022 at 7:38 PM