Getting codes without going to the dealer

eugene

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Hey everyone,

I really don’t want to go back to the dealer for the 900th time. Does anyone know how I can get a list of codes to tell me what is wrong with my Jeep?

I went to autozone and o Reilly’s and they couldn’t help me.

When I’m in RUN the CEL is on. Tbis means I have a soft engine code, am I right?

The other codes I want are electrical codes.


Thanks

Love my Jeep but hate how I’m having issues.



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ECHO

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Are you in RUN with the engine started?
 

Kidder212

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If you are in run the CEL will be on. If the Jeep is running with no CEL then you have no codes.
 
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eugene

eugene

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Autozone didn’t run their code scanner on it?
Autozone and o reliey both tried and got nothing. I had autozone do it 3 months ago, I went to the dealer and they showed me a sheet of electronic codes they could pick up
 

four low

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He did say " when in Run the CEL is on ". So, yes there are codes. I see a Code Reader that might help, called "Blue Driver", Wal-Mart, Advance Auto, $99 or so. Advertised as equalling dealer for Code information, check it out.
 
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eugene

eugene

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The Jeep was not running but the ignition was on RUN. Why would the CEL stay on when all the other lights that flash and disappear when I engage RUN Besides CEL.

Only reason I’m worried and want to see is b/c dealer put 6.5 qts of 5W-30 into my wrangler.

Only realized this because my oil pressure monitor on off-road pages was going crazy.
 

ECHO

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The Jeep was not running but the ignition was on RUN. Why would the CEL stay on when all the other lights that flash and disappear when I engage RUN Besides CEL.

Only reason I’m worried and want to see is b/c dealer put 6.5 qts of 5W-30 into my wrangler.

Only realized this because my oil pressure monitor on off-road pages was going crazy.
Nothing to worry about unless the CEL is on when the motor is running .. as far as the oil , I would get that to the correct level
 
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eugene

eugene

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Kidder212

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The radio is a known problem with the JL has nothing to do with over fill of oil. The radio won’t pop a CEL. If you have a CEL light on it will only be on while the engine is running for a code to be there. Other codes will appear in memory to help a tech determine problems. The CEL mostly deals with engine, transmission, and emissions quality problems.
 

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In the JK you could get the codes anytime by turning the key three times from off to run within 5 seconds and it would display any CEL codes on the evic display. I wonder if JLs have a similar sequence
 

multicam

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In the JK you could get the codes anytime by turning the key three times from off to run within 5 seconds and it would display any CEL codes on the evic display. I wonder if JLs have a similar sequence
YJ’s had the same thing, except the check engine light would blink at you and you had to watch it and count the numbers. It took a while on my YJ :CWL:

Somehow I doubt the JL has a similar feature. It’d be nice though!
 











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