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Unread 09-24-2013, 11:07 PM   #16
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Join Date: May 2010
Posts: 228
It is a Federal mandate the ESP tell tale illiminate on start as a bulb check.

If the car with the squiggly line underneath illuminates momentarily it usually means ESP is active.

If the car with squiggly line and ESP/BAS light illuminates and stays on it indicates a fault. Most common fault is steering wheel not being straight followed by faulty WSS in my experience.

ESP in new JK's is sensitive, especially with oversized tires where the speedometer has not been calibrated. If driven aggressively ESP will likely engage.

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Unread 09-25-2013, 12:58 PM   #17
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2013 JK Wrangler 
Join Date: Aug 2013
Location: 29palms, Ca
Posts: 66
Originally Posted by ncb
All of the lights will illuminate when you start the Jeep. That is normal. My 2009 has done the same thing a couple times. No need to panic. A bad wheel speed sensor will give a solid light.
That's good info to know .... That a bad wheel sensor will give a solid light... Thanks

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Unread 09-26-2013, 10:04 AM   #18
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Join Date: Sep 2013
Location: Forked River, New Jersey
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Make sure if you get a scanner is does ABS codes. A normal scanner will not pick up the wheel sensors. I had an issue with my week old jeep with my abs, and traction control lights coming on and staying on. It would go off but then just come back on. I read lots of threads about wheel sensors or one of thier wires pinched or broke. The dealer had my jeep in 3 times until they finally figured out it was a loose connection in a plug somewhere. Just an FYI for those with a similar problem.
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