PCM replacement instructions please?

KTRIZZLE

MEMBER
2007 JEEP LIBERTY
70,154 MILES

Is it possible for me to change out the PCM if so please give me instructions.

Friday, September 2nd, 2011 AT 12:54 AM

3 Replies

DANNY L

MECHANIC
5,648 POSTS

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.

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Wednesday, April 21st, 2021 AT 10:16 PM

HIPPIE48

MEMBER
1 POST
2004 JEEP LIBERTY
3.7L
250,000 MILES

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.

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Wednesday, May 12th, 2021 AT 1:28 PM (Merged)

KEN L

MASTER CERTIFIED MECHANIC
47,513 POSTS

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.

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