PCM replacement instructions please?

2007 JEEP LIBERTY
70,154 MILES
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KTRIZZLE
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  • 1 POST
Is it possible for me to change out the PCM if so please give me instructions.
Sep 2, 2011 at 12:54 AM
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DANNY L
  • ASE Certified Mechanic
  • 5,648 POSTS
  • ASE Certified Mechanic
Hello, I'm Danny.

Here is the information you requested: The PCM is on the drivers side of the engine compartment. After replacing the new or refurbished PCM you will need to use a professional or dealer grade scanner to program the mileage and VIN- vehicle identification number into the PCM. I've attached picture steps below on how to remove and replace the PCM including its location on your vehicle. Hope this helps and thanks for using 2CarPros.
Apr 21, 2021 at 10:16 PM
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HIPPIE48
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Code for injector 3 and 6 circuit open. I've tested wires, all have 12v. Moved injectors around, same codes. Omed injectors, all give same reading. Code reader on live data says 0.0 short fuel trim while it's running. At 2200/2500 RPMs acts like it's running out of gas.
May 12, 2021 at 1:28 PM (Merged)
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STRAILER
  • ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
This sounds like you have a bad TIPM or PCM. To be sure lets do a CAN scan which is the future of automotive repair. you can get a CAN scanner from Amazon for about $50.00. here is a video to show you how:

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

I would think the PCM is bad here is instructions on how to change it out. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
May 12, 2021 at 1:28 PM (Merged)
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