Check engine light won't go off - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 3 Old 09-22-2012, 01:22 AM Thread Starter
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Check engine light won't go off

During the last tropical storm that cam through I was driving through about a foot of water and check engine light came on. Doesn't run any different than before. I'm thinking a connection may have got wet. Can I check codes withou a reader like the older jeep with a few turns of the ignition? How do I reset the warning light? The jeep is an 08 wrangler unlimited on a rock krawler 3.5" with 37s. I have smitybilt xrc flares and no inner fender liners. Any ideas would be appreciated.
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post #2 of 3 Old 09-22-2012, 03:49 AM
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To check your Jeep JK Wrangler’s DTC codes:
1. Insert your key into the ignition, turn it to the ‘ON’ position but do not start the engine. Then, push the key into the ignition cylinder and while holding it in, turn it to the ‘OFF’ position and then back to the ‘ON’ position (3) times straight making sure to end with it in the ‘ON’ position. It is important to keep pushing in on the key to prevent it from catching at the different positions along the way.

2. If you do step #1 correctly, all your dash lights will illuminate and your odometer will show up as a series of (6) dashes. If your Jeep JK Wrangler has logged any DTC’s, they will be displayed soon after the dashes appear. Write down the DTC(s).

3. If your Jeep JK Wrangler has not logged any DTC’s, the dashes on your odometer will be followed by the message ‘-done-’. Turn your key to the ‘OFF’ position and you will in fact be done.

2008 Unlimited Rubicon Automatic
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post #3 of 3 Old 09-22-2012, 07:21 AM
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Take it to Advance Auto, Auto Zone, etc. and scan it in the parking lot for free. If it's nothing major you can also clear the code.

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