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Error code P0732 - Shudder while turning

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Old Feb 25, 2015 | 12:19 PM
  #1  
BradleyC's Avatar
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Default Error code P0732 - Shudder while turning

I haven't been able to find much on this error code and situation. Hope this is the right place to post.

Today while making a turn going 15-25mph I felt a shudder in the transmission, then error code p0732 came up. It's driving fine with no other noticeable issues. I also just got back from a long road trip and never encountered the error.

I just installed a 2.5" lift and 35's a week ago and haven't done the aev chip yet, so maybe this is related. I'm driving a 2011 JKU Sport automatic. Stock gearing.

Any info would be appreciated. Thanks.
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Old Feb 25, 2015 | 12:48 PM
  #2  
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The shudder could have been the ESP kicking in when you made the turn. It modulates the brakes if it thinks you are sliding. If the steering wheel wasn't centered after the lift, that could trigger such a reaction. (By centered, I mean centered better than by eye.)

Here is some info for the code you have. Unfortunately, it takes some dealer tools to troubleshoot this.

[h=2]P0732-GEAR RATIO ERROR IN 2ND[/h]

Theory of Operation

The transmission system uses two speed sensors, one to measure input rpm and one to measure output rpm. These inputs are essential for proper transmission operation. Therefore, the integrity of this data is verified through data checks. When in gear, if the gear ratio does not compare to a known gear ratio, the corresponding gear ratio error trouble code is set. The transmission will go into limp-in mode after four gear ratio error events occur in a given driving cycle.

  • When Monitored: The Transmission gear ratio is monitored continuously while the transmission is in gear.
  • Set Condition: If the ratio of the Input rpm to the Output rpm does not match the current gear ratio when compared to the known gear ratio.

[TABLE]
[TR]
[TD="bgcolor: white, align: center"]Possible Causes
[/TD]
[/TR]
[TR]
[TD="bgcolor: white, align: left"]RELATED TRANSMISSION DTCS PRESENT
[/TD]
[/TR]
[TR]
[TD="bgcolor: white, align: left"]TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY
[/TD]
[/TR]
[TR]
[TD="bgcolor: white, align: left"]INTERMITTENT GEAR RATIO ERRORS
[/TD]
[/TR]
[TR]
[TD="bgcolor: white, align: left"]INTERNAL TRANSMISSION
[/TD]
[/TR]
[/TABLE]
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Old Feb 26, 2015 | 07:24 AM
  #3  
BradleyC's Avatar
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Originally Posted by ronjenx
The shudder could have been the ESP kicking in when you made the turn. It modulates the brakes if it thinks you are sliding. If the steering wheel wasn't centered after the lift, that could trigger such a reaction. (By centered, I mean centered better than by eye.)
If it was ESP wouldn't I see the ESP light flash on the dash? I'm leaning more towards a legit gearing issue because of 1) the error code and 2) that I can replicate it even when move straight from a stop. Between 1st-2nd at around 2,000rpms it occurs.

Ive ordered a AEV procal as I think that could solve this problem. I'm also going to get under the jeep tonight and check for any leaks around the driveshaft and transmission. While I'm under there I'll have a look at the u-joints too. Worse case is that the Transfer case is going out. Also read that this could be an issue of pinion angle?
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Old Feb 26, 2015 | 12:03 PM
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Originally Posted by BradleyC
2) that I can replicate it even when move straight from a stop. Between 1st-2nd at around 2,000rpms it occurs.
There are two bits of information you left out of the first description of what's happening. In fact, you said it drives fine with no other issues (beyond the code and shudder while turning).
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