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post #1 of 9 Old 10-15-2012, 04:25 PM Thread Starter
JeepinGirl24
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Check Engine Light

How do I reset a check engine light on a 2005 jeep wrangler? I replaced the ambient air sensor temperature (per the diagnostic check) and the check engine light is still on. Should I reset it? Any help would be appreciated!!
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post #2 of 9 Old 10-15-2012, 04:41 PM
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disconnect negative battery terminal...wait 5 minutes...reconnect.

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post #3 of 9 Old 10-15-2012, 06:46 PM Thread Starter
JeepinGirl24
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I tried that but the engine light is still on. Not sure what to do. If you have any other suggestions I'm open to hearing them. Thanks for your help!!
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post #4 of 9 Old 10-15-2012, 07:10 PM
Hurley91
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You need a OBDII scanner to reset it.
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post #5 of 9 Old 10-15-2012, 07:16 PM
AmbuGrl
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If the light is on there is a problem. you can go to a local auto store and they can scan it or you can borrow the scanner and pull the codes.

but, you may have better luck in the TJ forum...

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post #6 of 9 Old 10-15-2012, 07:33 PM Thread Starter
JeepinGirl24
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I originally went to an automotive store and they did a diagnostic check and it came back telling me the ambient temp sensor needed to be checked or replaced so that's what I did. But the engine light remains on.... At a loss.
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post #7 of 9 Old 10-15-2012, 07:46 PM
sreno0207
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It will reset after a drive cycle, you should of reset it with the scanner. You can also check them yourself, use the search I know this has been covered b4.
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post #8 of 9 Old 10-22-2012, 07:27 PM
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Quote:
Originally Posted by JeepinGirl24 View Post
How do I reset a check engine light on a 2005 jeep wrangler? I replaced the ambient air sensor temperature (per the diagnostic check) and the check engine light is still on. Should I reset it? Any help would be appreciated!!
Pull + batery cable end off of the + battery post. Ground it out for 30 seconds. That drains the power in the capacitors in the brain that holds the learned memory. Now re-connect the + battery cable to the + post on the battery. Fire it up and take it for a ride. You are now running on factory presets. Your brain will now gather information over the next 50 full cycle starts to compare to each time you drive.

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post #9 of 9 Old 10-22-2012, 07:55 PM
Freestyle713
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You can also disconnect both terminals and connect them together for like 5 minutes to reset it. But I tried that after I replaced my TPS and it didn't work, then again I'm OBD1. Just wait it out. My CEL eventually went out about a week later.

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