Jeep wrangler check engine light codes.
Malfunction indicator light jeep wrangler 2012.
The following are warning lights and indicators found in vehicles built by jeep.
17 problems related to check engine light on have been reported for the 2012 jeep wrangler.
They are roughly ordered by importance which tends to be by color red amber yellow orange green blue gray but there are over 80 of them so be patient.
If there s any indicator that there s something wrong with your jeep wrangler the check engine light would be the biggest clue.
The only way to know for certain why it s on is to have the diagnostic codes checked.
Joined dec 22 2012 512 posts 19 jan 9 2014.
When the engine warning light illuminates on the instrument panel this is the result of a trouble code sent to the pcm.
I have just a little under 4000 miles on my jeep at the same time the malfunction indicator light came on when starting the vehicle.
You can take the vehicle to an auto parts store to have it.
The malfunction indicator light or mil resembles a car engine.
However just because the check engine light is on doesn t mean there s anything seriously wrong with it.
My malfunction indicator light mil came on yesterday.
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I have the same exact issue today with my 2013 jeep wrangler unlimited sahara.
Turned the light off and drove a few days only this time the light came back on before it could pass inspection.
It lights up when the key is in the on run position before the engine starts.
Basically what this means is your jeep s computer has detected some sort of problem with a part or system on the vehicle and is letting you know via the malfunction indicator light check engine light.
A jeep wrangler sport comes with a power train control module pcm computer on board that diagnoses problems throughout the vehicle.
This time the light stayed off 4 weeks but it back on again.
The most recently reported issues are listed below.
A mil that remains lit is indicative of an engine or emissions system problem.
Unfortunately the light itself does not specify the problem so here is a simple way to find out what issue your vehicle is having.
They ran a smoke test but said they could not find a leak.
Click a link to learn more about each one.