TCM location?

2011 CHEVROLET MALIBU
143,117 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
Avatar
LIZB2986
  • MEMBER
  • 2 POSTS
My Malibu feels like it doesnt want to go in gear when drving. Once i do get it in and out of 1st gear she drives fine, that is until I have to come to a stop or drive up a hill. My OBD II is popping the codes listed in the attatched image. Service ESQ message is also displyed on the dash. Ive checked all fuses they were all good.

Im hoping I can check the wiring and connectors in the TCM before spemding a few hundred replacing it.

However, I cant find any tutorials for my year, make and model. Can anyone tell me where the TCM is located? Any diagrams would be a plus.
Side note; it is a 6 speed.
Aug 20, 2025 at 9:07 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
I don't see the images can you please reload it? I can help you more if I knew the code numbers, the TCM is located inside the transmission at the valve body, here is the location inside the unit in the images below.
Image (Click to enlarge)
Attached Media
Aug 21, 2025 at 7:42 AM
Advertisement
Avatar
LIZB2986
  • MEMBER
  • 2 POSTS
Im not sure why the images wont upload. My posts says there are images but i cant see them i willl add the codes here. TCM location is exactly where i was dreading it woukd be. Thank you for the diagram.

P0601-00 Control Module Read Only Memory (ROM) Transmission Control Module (TCM)

P0700-00 Malfunction Indicator Lamp (MIL) Illumination 2036

2036 Description: Internal Electronic
Performance 2

1059 Description: Communication
Fault

3017 Description: Internal Electronic
Performance 1

1053 Description: Preload Failure
Region 2
Image (Click to enlarge)
Attached Media
Aug 21, 2025 at 10:53 AM
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Essentially, the TCM is failing its own self-test. It’s not about sensors or wiring in most cases it points to an internal TCM fault, clear the codes once the job is completed.
Aug 21, 2025 at 6:57 PM