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PCM/ECM testing?

Tiny
LUUCUFER
  • MEMBER
  • 2007 DODGE CHARGER
  • 2.7L
  • V6
  • AUTOMATIC
  • 155,000 MILES
So, I need to do a test on my car to see if it's the PCM/ECM that's preventing my car from starting and was wondering step by step on how to test it. I have the car listed above SE model.
Thursday, May 18th, 2023 AT 11:22 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,512 POSTS
A CAN scan will show you any errors in the system. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Here is one for about $99.00 if you need it:

https://amzn.to/3ZixY4v

Here is how to replace the PCM in case you need it. You can get a preprogrammed unit by searching Google or Ebay. Check out the images (below). Please let us know what happens.

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Friday, May 19th, 2023 AT 12:01 PM

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