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post #1 of 5 (permalink) Old 04-04-2019, 01:45 PM Thread Starter
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Jeep Compass esp bas light

Ok so my wife has a 2007 Jeep compass 4WD that had a ton of prolems when it went in for its inspection this year. The front subframe was rusted and had holes. Replaced it and the front struts. When the mechanic was putting a control arm on the rear he noticed that to was rusted and falling apart. So that too was replaced. So so far what was replaced in the last month.

Front Subframe
Rear Subframe
Front Struts
Front Control Arms
Rear Lower control Arms
All 4 tires
Throttle Body

So we finally got the Jeep last week. Yesterday she tells me the ESP/BAS light and traction control light kicked on. And today when she had to swerve to avoid something in the road she said the car shook/vibrated for about a minute.

Looking online the ESP/BAS light would be caused by either the ABS speed sensors or the steering wheel angle sensor. Has anyone had a similar problem and got it fixed? What was the actual problem.
I am going to get my brothers scan tool to see if any codes pop up. But I am not sure if they will since the check engine light isn't on.
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post #2 of 5 (permalink) Old 04-04-2019, 02:04 PM

 
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Location: Denver, CO
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Several people have had this problem, a quick search will turn up a number of threads on it.


Here are 3 common causes:

1 Bad wheel speed sensor
https://www.jeeppatriot.com/forum/5-...el-sensor.html

https://www.jeeppatriot.com/forum/17...bs-sensor.html


2. Problem with wiring harness under drivers side foot rest (usually found in earlier models)
https://www.jeeppatriot.com/forum/15...ghts-came.html


3. Bad reluctance ring in wheel hub - requires hub replacement

Rear - https://www.jeeppatriot.com/forum/15...l-bearing.html

Front - https://www.jeeppatriot.com/forum/16...placement.html

Last edited by Sandstone; 04-04-2019 at 02:32 PM. Reason: Links not working
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post #3 of 5 (permalink) Old 04-04-2019, 02:50 PM Thread Starter
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Is it possible that the steering wheel not being straight when the car tires are straight could cause this?
It had an alignment last month but the steering wheel is not straight.
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post #4 of 5 (permalink) Old 04-04-2019, 04:23 PM

 
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I don't think it's likely, but if you want you can try doing the steering angle sensor re-calibration procedure:

https://www.autozone.com/repairguide...96b43f80f65fa5


The SAS requires calibration anytime the battery or an ABS (ESP) component has been disconnected for any length of time. If the SAS is not calibrated following battery reconnection, the ESP/SAS indicator lamp is illuminated following 5 ignition cycles indicating the need for calibration.


To calibrate, perform the following:

Start the engine.

Center the steering wheel.

Turn the steering wheel all the way to the left until the internal stop in the steering gear is met.

Turn the wheel all the way to the right until the opposite internal stop in the steering gear is met.

Center the steering wheel.

Turn off the engine.
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post #5 of 5 (permalink) Old 04-05-2019, 10:59 AM Thread Starter
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Quote:
Originally Posted by Sandstone View Post
Several people have had this problem, a quick search will turn up a number of threads on it.


Here are 3 common causes:

1 Bad wheel speed sensor
https://www.jeeppatriot.com/forum/5-...el-sensor.html

https://www.jeeppatriot.com/forum/17...bs-sensor.html


2. Problem with wiring harness under drivers side foot rest (usually found in earlier models)
https://www.jeeppatriot.com/forum/15...ghts-came.html


3. Bad reluctance ring in wheel hub - requires hub replacement

Rear - https://www.jeeppatriot.com/forum/15...l-bearing.html

Front - https://www.jeeppatriot.com/forum/16...placement.html

Ok so far no good.
1. Found the pink loop, which is was back a bit further in the compass. There is no correosion and everything is completely clean.
2. All the speed sensors look to be in place, as in no broken or rusted out clips.
3. Even the the esp/bas and trac control light are on. The computer reads no codes, since I believe the car doesn't give a code unless the check engine light is on.

Not sure what to check next.

Last edited by Shortyg83; 04-05-2019 at 12:38 PM.
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4wd light, abs light, bas light, esp light

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