ABS sensors make trans not work properly - Jeep Commander Forums: Jeep Commander Forum
General Commander Discussion General Discussion involving the Jeep Commander goes here. If it does not fit into a more specific category below, post it here.

 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old 05-25-2018, 09:15 AM Thread Starter
Member
Points: 1,080, Level: 17 Points: 1,080, Level: 17 Points: 1,080, Level: 17
Level up: 80% Level up: 80% Level up: 80%
Activity: 0% Activity: 0% Activity: 0%
 
chuckyz2's Avatar
 
Join Date: Jun 2017
Location: SoCal
Own a Commander?: Yes
Model year: 2007
Trim Package: Sport
Power-Train: 3.7L V-6
2WD
If 4WD - system: QT-I
Current Mileage: 50,000
Posts: 40
ABS sensors make trans not work properly

I have been have issues with my Jeep not shifting till high rpms since I bought it. I also had sor warning lights for abs bas slippery and just assumed they were different issues. Other than that the jeep runs perfectly. Through research I found this:

Yes, those wheel sensors are not just for the ABS, they send wheel speed information to the computer for the transmission so it knows when to shift. Without them the transmission is in limp mode and will not shift. It locks into 3rd gear, raises maximum hydraulic line pressure (why it slams into drive and reverse). It's fail safe state basically.
There's nothing you can do until you replace the sensors and clear the codes. It's not drivable in its current state until you do that.


So for anyone that may be having issues I will post my symptoms and then when I fix it I will come back and tell what I did to get it fixed.


Symptoms:
Sometimes the warning lights are on and sometimes not on new drive session. When off, the the trans acts funny every time. Its starts out driving good and shifting properly going down my street but as I slow down for the first turn it downshift too early. during the end of a stop it will actuate the abs. Once on the road outside the my track, it wont shift till 4k rpms or higher after I get 3rd gear all the lights come on and it shifts perfectly for the remainder of that driving session. Next day, after work or after shopping....new driving session...lights are on after start up symptoms. Sometimes it shifts normal, sometimes not. When light are on and shifting is acting up it takes a long time to start working properly. Sometimes the rpms need to shift is ridiculous. I have found that a stop, N or P and key all the way off for 3 seconds always gets the trans shifting normal again. When lights are off on new drive session it always goes to normal shift after 3rd gear and all the lights come on.

Where I am at in repairs:
I don't have a scanner so I did some research and found that the ABS sensors, Wheel speed sensors, one located at each wheel, could be the reason for the warning lights and a ohm meter can test them to see if they have the proper resistance. The first one I checked I could not get a reading on any setting. So I went to Auto zone and bought one and test it and it had resistance. I thought I found the culprit but it didn't make the problems go away. So I pulled the other front sensor and it was open also, no resistance on the ohm meter. In the meanwhile im researching like crazy and find that the ohm readings should be between 600 and 1100. Later I found a post that claimed 900 to 1300. I remembered the first new one I bough was lower than that so I unplugged it and tested it again and it was. So I returned it and put both new sensors in the front with ohms in the specified range. No change in symptoms. I can see that the sensors seem to be junk in these having less than 50k miles and know in my heart that the rears are probably bad also. I didn't have the money at that point to go buy them so I didn't even bother to test the rears. That was several months ago. No I have the money and went to buy one and tested it at the counter and it was at 400. Funny thing is it was an open box and the sensor was in a sandwich baggy. Just like the first one I bought for the front. It was the only one they had so I left with no sensor. And I still haven't tested the rears and got busy at work. So that is where I am at. I will not buy mopar as the ones in the Jeep didn't last very long. I heard Dormans are junk. I have had good luck with Autozone on all the parts I buy from them save that one WSS that metered low. So I am going to order two rears. and put them in in the next couple days.

Last edited by chuckyz2; 05-25-2018 at 09:42 AM. Reason: wasnt finished
chuckyz2 is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 05-25-2018, 09:46 AM Thread Starter
Member
Points: 1,080, Level: 17 Points: 1,080, Level: 17 Points: 1,080, Level: 17
Level up: 80% Level up: 80% Level up: 80%
Activity: 0% Activity: 0% Activity: 0%
 
chuckyz2's Avatar
 
Join Date: Jun 2017
Location: SoCal
Own a Commander?: Yes
Model year: 2007
Trim Package: Sport
Power-Train: 3.7L V-6
2WD
If 4WD - system: QT-I
Current Mileage: 50,000
Posts: 40
Also, I know that there can be other issues but an open reading on the meter is a definite bad part. So lets hope this cures all the issues when I get the rears in.


Is there a way to pull codes from the Jeep by turning the on and off or something that will tell if the sensors are bad and which ones are bad?
chuckyz2 is offline  
post #3 of 10 (permalink) Old 05-25-2018, 09:54 AM
Senior Member
Points: 16,175, Level: 81 Points: 16,175, Level: 81 Points: 16,175, Level: 81
Level up: 65% Level up: 65% Level up: 65%
Activity: 17% Activity: 17% Activity: 17%
 
Join Date: May 2006
Location: Orlando, FL
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 4.7L V-8
4WD
If 4WD - system: QD-II
Current Mileage: 165,000
Posts: 1,472
yes you can do the key dance. Turn ignition off snd on 3 times but not far enough to start engine. your codes should appear in your message center.
Creek is offline  
 
post #4 of 10 (permalink) Old 05-25-2018, 10:06 AM Thread Starter
Member
Points: 1,080, Level: 17 Points: 1,080, Level: 17 Points: 1,080, Level: 17
Level up: 80% Level up: 80% Level up: 80%
Activity: 0% Activity: 0% Activity: 0%
 
chuckyz2's Avatar
 
Join Date: Jun 2017
Location: SoCal
Own a Commander?: Yes
Model year: 2007
Trim Package: Sport
Power-Train: 3.7L V-6
2WD
If 4WD - system: QT-I
Current Mileage: 50,000
Posts: 40
Thanks Creek!
If there are bad wheel speed sensors will it tell me?
chuckyz2 is offline  
post #5 of 10 (permalink) Old 05-27-2018, 04:57 PM Thread Starter
Member
Points: 1,080, Level: 17 Points: 1,080, Level: 17 Points: 1,080, Level: 17
Level up: 80% Level up: 80% Level up: 80%
Activity: 0% Activity: 0% Activity: 0%
 
chuckyz2's Avatar
 
Join Date: Jun 2017
Location: SoCal
Own a Commander?: Yes
Model year: 2007
Trim Package: Sport
Power-Train: 3.7L V-6
2WD
If 4WD - system: QT-I
Current Mileage: 50,000
Posts: 40
ABS or Wheel speed sensors

Quote:
Originally Posted by chuckyz2 View Post
Thanks Creek!
If there are bad wheel speed sensors will it tell me?

Did the key dance. DT U1417 was the only code.

Through research I found the DT U1417 code is
left (drivers side) wheel speed sensor. Could be
the front or rear. From what I can tell I only
need to replace the rear as the front has already been done.
Be glad when this is over.

Will post results.
chuckyz2 is offline  
post #6 of 10 (permalink) Old 05-27-2018, 11:37 PM Thread Starter
Member
Points: 1,080, Level: 17 Points: 1,080, Level: 17 Points: 1,080, Level: 17
Level up: 80% Level up: 80% Level up: 80%
Activity: 0% Activity: 0% Activity: 0%
 
chuckyz2's Avatar
 
Join Date: Jun 2017
Location: SoCal
Own a Commander?: Yes
Model year: 2007
Trim Package: Sport
Power-Train: 3.7L V-6
2WD
If 4WD - system: QT-I
Current Mileage: 50,000
Posts: 40
It was the left rear wheel speed sensor.
Went to 3 Auto parts with my meter.
The first two read between 400 and 500 ohms
Not doing this twice so I left them.
The last one it read 605. Decided to give it a try
as I was out of options. Lights were on at start up.
I was thinking to myself... its a 100 ohms off.
Took it for a drive anyways and within the first 100 feet
it turned off. That has never happened so I took her
for a good run and the lights stayed off.

Code might still be there but I will clear it if it is.

Battery disconnect for 1/2 hour?

Turn key to start and hold for 30 seconds?


I think that's what I read in my research.


This will also give the computer a fresh look and
program according to my driving style.


Glad that is done. Glad it wasn't more serious.


P.S. The rears are easy with the exception of the
plug being up on the inside of frame with gas tank
right next to it. I had to climb under the back
and only had enough room for one hand with pliers
I used needle nose pliers and shoved them
under and pried it out about half way then grab
it and wiggled and pulled it out the rest of the way.
I was able to pull it down enough to get the red clip
out and unplugged from inside the fender well.


Hope this helps someone someday.


So the low on the ohms can be 605

So between 605 and 1300


400 is too low. That I know


500? haven't had one in that range.


The fronts are 900 and 1000. One was a 400

and I took it out and returned it. That's all I got.
chuckyz2 is offline  
post #7 of 10 (permalink) Old 05-28-2018, 08:11 AM
Super Moderator
Points: 23,235, Level: 93 Points: 23,235, Level: 93 Points: 23,235, Level: 93
Level up: 89% Level up: 89% Level up: 89%
Activity: 100% Activity: 100% Activity: 100%
 
Big Blue's Avatar
 
Join Date: Oct 2015
Location: East Coast of Florida
Own a Commander?: Yes
Model year: 2008
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 101,200
Posts: 5,320
Garage
Lots of good information here, one thing I would ask you is where were you buying these sensors from that so many of them were bad??

Did you keep going back to the same place? After the first bad one - I probably would have returned it & went somewhere else.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Big Blue is offline  
post #8 of 10 (permalink) Old 05-28-2018, 11:57 AM Thread Starter
Member
Points: 1,080, Level: 17 Points: 1,080, Level: 17 Points: 1,080, Level: 17
Level up: 80% Level up: 80% Level up: 80%
Activity: 0% Activity: 0% Activity: 0%
 
chuckyz2's Avatar
 
Join Date: Jun 2017
Location: SoCal
Own a Commander?: Yes
Model year: 2007
Trim Package: Sport
Power-Train: 3.7L V-6
2WD
If 4WD - system: QT-I
Current Mileage: 50,000
Posts: 40
Quote:
Originally Posted by Big Blue View Post
Lots of good information here, one thing I would ask you is where were you buying these sensors from that so many of them were bad??

Did you keep going back to the same place? After the first bad one - I probably would have returned it & went somewhere else.
AutoZone.
I have had such good luck with their parts.
I had to swap out a motor in my truck a
few years back and used all AutoZone parts.

Alt/Batter/starter/TPS/and more

I have also done a complete brake overhaul
and they have never been better. Used their
highest end DuraLast

There are no Napa's close by and AutoZone
is just down the street and another one just
a few miles down from there.

I had to go to a neighboring town for a small
for a small job and stopped at their Autozone
and they had the good one.

I have done countless hour of research on this
and a lot of times people don't cure their issues
with the easy sensor replacement. And they never
return to tell what the issue really was. Some
have mentioned getting a bad one. Nothing
worse than having to do a job twice because
of a faulty new part. So meter them.


I metered the old rear and it failed. After removing
it I metered it again and it showed good. Changed
it anyways. I should probably change the right rear
so they are all new.
chuckyz2 is offline  
post #9 of 10 (permalink) Old 05-28-2018, 11:59 AM Thread Starter
Member
Points: 1,080, Level: 17 Points: 1,080, Level: 17 Points: 1,080, Level: 17
Level up: 80% Level up: 80% Level up: 80%
Activity: 0% Activity: 0% Activity: 0%
 
chuckyz2's Avatar
 
Join Date: Jun 2017
Location: SoCal
Own a Commander?: Yes
Model year: 2007
Trim Package: Sport
Power-Train: 3.7L V-6
2WD
If 4WD - system: QT-I
Current Mileage: 50,000
Posts: 40
Quote:
Originally Posted by Big Blue View Post
Lots of good information here, one thing I would ask you is where were you buying these sensors from that so many of them were bad??

Did you keep going back to the same place? After the first bad one - I probably would have returned it & went somewhere else.
Autozone. But the good ones are good. Lol
chuckyz2 is offline  
post #10 of 10 (permalink) Old 05-28-2018, 01:48 PM
Super Moderator
Points: 23,235, Level: 93 Points: 23,235, Level: 93 Points: 23,235, Level: 93
Level up: 89% Level up: 89% Level up: 89%
Activity: 100% Activity: 100% Activity: 100%
 
Big Blue's Avatar
 
Join Date: Oct 2015
Location: East Coast of Florida
Own a Commander?: Yes
Model year: 2008
Trim Package: Sport
Power-Train: 4.7L V-8
4WD
If 4WD - system: QT-II
Current Mileage: 101,200
Posts: 5,320
Garage
Quote:
Originally Posted by chuckyz2 View Post
Autozone. But the good ones are good. Lol
I've been fortunate so far, I've had no wheel speed sensors or ABS sensor issues so far, knock on wood.

I wonder why some XK's have these issues and some don't - what causes the wheel & ABS sensors to go bad?

Any idea?


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Big Blue is offline  
Sponsored Links
Advertisement
 
Reply

  Jeep Commander Forums: Jeep Commander Forum > Jeep Commander Discussion > General Commander Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Jeep Commander Forums: Jeep Commander Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome