Code U0101?

Tiny
CRAIG A S
  • MEMBER
  • 2015 CHEVROLET MALIBU
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
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.
Monday, September 19th, 2022 AT 6:15 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,867 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.
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Tuesday, September 20th, 2022 AT 7:38 PM

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