Electrical system problems

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Computer module

Jeep Patriot 2010 Srs 119000 miles

Two days after but my patriots it started doing like the alternator was going out so I changed alternator four times but three batteries and nobody can figure out what’s wrong it won’t hold a charge. It just change the battery and when you put it on the tester, it says there’s no alternator, so I went to the jeep place and the guy tells me it’s my thing him computer module that’s discontinued. What can I do?

Kehia from United States a year ago

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Same issue here

1 report

Bruce from United States a year ago

It's possible that the issue is with the power control module (PCM), which is also known as the engine control module (ECM). The PCM is responsible for controlling various aspects of the vehicle's electrical system, including charging the battery. If the PCM is not functioning properly, it could be causing the alternator to not charge the battery and give false readings when the battery is tested.
It is also possible that the issue is with a different component of the electrical system, such as a relay, a wiring problem, or a voltage regulator. However, based on what you have described, the PCM seems like the most likely culprit.
Since the PCM is discontinued, you may have difficulty finding a replacement. In this case, you may have to look for a used PCM or consider having a different control module that is compatible with your Jeep Patriot programmed to work in your vehicle.
It would be best to have the vehicle inspected by a qualified mechanic or dealership service center to diagnose the issue and find the best solution.

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Won't crank or start

Jeep Patriot 2009 Jeep patriot sports addition 120000 miles

My battery died I charged my battery went to start my Jeep it won't crank or start and the lights come on it just won't crank or start what is the problem

Babygirl from United States 4 months ago

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Same issue here

2 reports