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Limp mode?

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Old Aug 18, 2014 | 09:06 AM
  #11  
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Agree. Wheel sensor or battery. I think a wheel sensor myself. Maybe just a loose connection. Easy to check.
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Old Aug 18, 2014 | 10:48 AM
  #12  
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Do the codes stay on or disappear?
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Old Aug 18, 2014 | 01:26 PM
  #13  
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Originally Posted by TheWhiteBread
Do the codes stay on or disappear?
The down hill assist light will turn off after a bit, but the other two, stay on.
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Old Aug 18, 2014 | 03:55 PM
  #14  
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Oddly enough I experienced LIMP MODE before I even bought my Wrangler. I was at the dealer a few months ago test driving a 2014 sahara when as soon as I got off the highway I got the same lights on but the car also wouldn't accelerate past around 25 km/hr and it was constantly pushing forward unless I stepped on the break. The sales guy that was with me said he'd never seen anything like this before on a brand new car. We took it right back to the dealership service centre and they said it was limp mode. If you can accelerate to normal speeds then I would question if it's limp mode.. based on my experience that is.
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Old Aug 18, 2014 | 05:50 PM
  #15  
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Originally Posted by CaptainNapalm
Oddly enough I experienced LIMP MODE before I even bought my Wrangler. I was at the dealer a few months ago test driving a 2014 sahara when as soon as I got off the highway I got the same lights on but the car also wouldn't accelerate past around 25 km/hr and it was constantly pushing forward unless I stepped on the break. The sales guy that was with me said he'd never seen anything like this before on a brand new car. We took it right back to the dealership service centre and they said it was limp mode. If you can accelerate to normal speeds then I would question if it's limp mode.. based on my experience that is.
Okay, looks like I was mistaken. I just took the JK around the block with no problems other than the ABS and Traction Control lights on. No "limping" home this time. As mentioned earlier, seems like a wheel sensor may be to blame, causing the ESC to intermittently apply braking force? In my case, it kept me at 5-10 mph. Would this explain why I "limped" back home last night? Either way, it's going to the dealership (warranty) on its own and not on the back of some tow truck.

Thanks again for the help folks!
Jarett
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Old Aug 19, 2014 | 03:54 AM
  #16  
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Your Jeep could have thought you were in a skid and applied brakes to try to correct. Had it happen to me a couple times: Bent drag link the first time (no unusual lights), bad unit bearing the second time (lots of lights). I've also seen it with a damaged wire to a wheel sensor (caused by a lift), and the aforementioned bad battery (two dead cells, that being in a '12 JK). And read plenty of folks who've simply had a bad sensor. While some code readers can read the ABS codes, most cannot. Dealership sounds like a good plan since you've got warranty coverage, but if you have a lift, you might do a visual inspection of the wiring around the wheels to ensure a wire hasn't become crushed or otherwise damaged. Dealer probably wouldn't warranty repair, and the DIY fix is usually just splicing the wires back together and routing so it doesn't happen again.
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