Where is the automatic transmission control module located?

2008 HOLDEN ASTRA
152,000 MILES • 2.1L • 4 CYL • 2WD • AUTOMATIC
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SHANE MALINS
  • MEMBER
  • 1 POST
I am unable to find the location of the control module. Could you please help? Thank you
Feb 25, 2022 at 4:46 PM
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SQM
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 6,383 POSTS
Hello,

The transmission control module (TCM) is located behind the center console.

I have attached the replacement procedure for a 2008 Saturn Astra, which is similar to the Holden Astra, as Holden was not sold in the USA.

Keep in mind that if the TCM gets replaced it will need programming. Which will require a specialized scan tool.

Please let me know if you have any questions.
Thank you.
Feb 25, 2022 at 8:20 PM
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