Where is the ECM/PCM located?

2008 CHEVROLET TAHOE HYBRID
210,000 MILES • 6.0L • 4WD • AUTOMATIC
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HEATHERHARDIN0907
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Need to replace the ECM, is it under the fuse box in the engine compartment?
Jun 11, 2022 at 11:13 AM
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SQM
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Hello,

Yes, the ECM is located below the fuse box under the hood.

Remember to retrieve the existing ECM data before removing it, using an appropriate scan tool.

I have attached the replacement procedure as well as programming procedure below for your reference.

Let me know of any questions.
Thank you.

https://www.2carpros.com/articles/how-a-car-computer-works-pcm-ecm-bcm
Jun 11, 2022 at 2:42 PM