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Old 01-08-2020, 08:24 PM
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2012 JK Unlimited - Traction Control/Steering issues

2012 Jeep Wrangler Unlimited 4 door Hard Top
1" Body Lift
2 1/2" Pro-Comp Leveling Kit

I purchased this jeep from a privet seller with the after market leveling and lift kit already installed. When i purchased it I was told the reason for the engine light was because of a tire pressure sensor was out.

The passenger rear tire pressure sensor was out and had it replaced. After this was replaced the steering got really soft at highway speeds, its more noticeable the more windy it is.

When I go to pass or change lanes on the interstate the steering gets erratic, it either wants to hover the center lane or it shoots far to the left. I live in the upper midwest and the center line is the peak of a sloped road for weather run off.

Lately while turning on right hand (only right hand)curves at highway speed or changing lanes right or left my traction control will engage. It will not engage while making a right hand turn at slower speed.

I did take it in for an alignment thinking that was the problem but I was given a paper and told nothing was wrong.


Please help!*

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Old 01-08-2020, 08:31 PM   #2
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Old 01-11-2020, 09:46 PM   #3
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I have on 07, 08, and 09 JKU. If the same as your '12, tire psi monitors shouldn't turn on a check engine light. The TPMS dash light illuminates for this. My 08 has the ESP and ABS light on. I re-centered the steering wheel but light is still on. I replaced the front hubs to address the ABS. Light still on. I am going to try an alignment and detach the ABS sensors one at a time to try and isolate the problem.
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Old 01-12-2020, 11:27 PM   #4
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Found the below on another thread while looking into electrical issues for my 2012 JKU. Not sure if it'll help your issue but maybe try disconnecting battery for +10mis and recalibrating your steering wheel to center.

----------------------

One piece of interest, the service manual indicates the following procedure should be followed after battery disconnection. My stability control icon was comming on after "normal" gentle turns, this went away after I performed the below procedure.

Electrical Battery Disconnection Procedure
ESP equipped vehicles require calibration of the Steering Angle Sensor (SAS) anytime the battery or an ESP component has been disconnected for any length of time. If the SAS is not calibrated following battery reconnection, the ESP/BAS indicator lamp is illuminated following five ignition cycles indicating the need for calibration.
To calibrate, perform the following:
1. Start the engine.
2. Center the steering wheel.
3. Turn the steering wheel all the way to the left until the internal stop in the steering gear is met, then turn the wheel all the way to the right until the opposite internal stop in the steering gear is met.
4. Center the steering wheel.
5. Stop the engine.


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Old 01-13-2020, 12:07 AM   #5
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Get it on a dealer scanner - make sure the yaw sensor in the center console is not causing problems. Mine was acting up causing the ABS to fire randomly. Took several visits to the dealer - and after I asked them to check the yaw sensor...Also, have them check all the speed sensors to make sure the communication is consistent/no drops outs. Same thing applies to the clock spring.
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Old 01-14-2020, 11:54 PM   #6
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Quote:
Originally Posted by kentbeard View Post
2012 Jeep Wrangler Unlimited 4 door Hard Top
1" Body Lift
2 1/2" Pro-Comp Leveling Kit

I purchased this jeep from a privet seller with the after market leveling and lift kit already installed. When i purchased it I was told the reason for the engine light was because of a tire pressure sensor was out.

The passenger rear tire pressure sensor was out and had it replaced. After this was replaced the steering got really soft at highway speeds, its more noticeable the more windy it is.

When I go to pass or change lanes on the interstate the steering gets erratic, it either wants to hover the center lane or it shoots far to the left. I live in the upper midwest and the center line is the peak of a sloped road for weather run off.

Lately while turning on right hand (only right hand)curves at highway speed or changing lanes right or left my traction control will engage. It will not engage while making a right hand turn at slower speed.

I did take it in for an alignment thinking that was the problem but I was given a paper and told nothing was wrong.


Please help!*
I have a 2018 JKU on 17" and 3.73 axle ratio (if that matters, I'm just saying it's not stock).

Something like this happened to me tonight. I turned left though, off my street onto another road and my back end fishtailed. We had a light snow today, then it melted and now it's near freezing again, so I thought I hit a patch of ice. It felt like didn't have control of the car though as I went a short distance to a stop sign. I turned right this time and I still felt the steering was mushy. I looked down and all of a sudden I wasn't in D anymore, I was in L (or l). I thought maybe I hit the gear shift by accident and slapped it into low, but it would pop out of that. So I pulled over, put it in park and back into D.

For the next 45 minutes of driving, no problem. I was on a two lane highway, driving in small town turning right, turning left, yatta yatta. I had to go up a hill with tight curves and part of it it quite steep. As I approached curve that's pretty much a left without stopping, I pressed on the brakes and not only did I have the mushy steering, I felt chatter in my brake pedal and heard it too.

Continuing down the road, my steering was still mushy. My next right after a stop (no chattering) was wide and in one more turn I was at my next stop. After a 1/2 hour there, I had a 2 mile drive home.

Things seemed fine when I turned left off that street and then right. I had to climb a hill and I can't be sure if I started feeling the mush again, but as I slowed to turn right, I felt and heard the chatter again. My steering was mushy, I was worried I wouldn't have control, but I was close to home. I had to slow for the last left back onto my street and no chatter.

I dunno what this means. I'll be talking to my dealer tomorrow.
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Old 01-17-2020, 11:20 PM   #7
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I got her back from the dealer. No codes were flagged. The techs wondered if this happened in the snow or ice (yes ice). They judged it as my anti-lock brakes activating. Nothing was up with the steering either.

It was all under warranty, so no cost.

I've driven cars with ABS since 1997. I've never felt anything like that.

My neighbor and the tow guy agreed, it was the ABS as well. O.k. Now I know and I won't freak out. Weird though it's never happened before.

Just a co-incidence, my son's GF was driving their BMW and the same thing happened to her, the same day in icy conditions. Wish he would have shared that with me.

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