Where is the automatic transmission control module located?

SHANE MALINS

MEMBER
2008 HOLDEN ASTRA
2.1L
4 CYL
2WD
AUTOMATIC
152,000 MILES

I am unable to find the location of the control module. Could you please help? Thank you

Friday, February 25th, 2022 AT 4:46 PM

1 Reply

SQM

MECHANIC
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.

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