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ABS warning lights

Tiny
JWAYNE1986
  • MEMBER
  • 2006 JEEP LIBERTY
  • 3.7L
  • V6
  • 4WD
  • AUTOMATIC
  • 135,000 MILES
Last night I hit a pothole on front passenger side which caused multiple warning lamps to illuminate; ABS, ESP, BAS, TCS, also airbag light too.
Wednesday, February 20th, 2019 AT 6:10 PM

19 Replies

Tiny
JIS001
  • MECHANIC
  • 3,411 POSTS
For this type of concern you would need an advance scanner to check for trouble codes. You would also need the vehicle raised on a hoist to check for any bent components like a tie rod arm or damaged speed sensor. If the steering wheel is off centered then you are most likely going to have something bent and will need to address it and have the alignment check.
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Thursday, February 21st, 2019 AT 12:10 AM
Tiny
JWAYNE1986
  • MEMBER
  • 10 POSTS
We just replaced the entire suspension on both the front driver and passenger side and had a four wheel alignment done less than a week ago.
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Thursday, February 21st, 2019 AT 1:20 AM
Tiny
JWAYNE1986
  • MEMBER
  • 10 POSTS
What are the chances I just damaged a sensor or is it a serious problem?
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Thursday, February 21st, 2019 AT 1:25 AM
Tiny
LYNCH890
  • MEMBER
  • 13 POSTS
It is possible for the wheel speed sensor to have broken.
Does the ABS system work in spite of the warning lights?
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Thursday, February 21st, 2019 AT 6:34 AM
Tiny
JWAYNE1986
  • MEMBER
  • 10 POSTS
Lynch890 what would be a good way to tell? I drove it home afterwards and seemed to run normal I've just been kind of nervous to drive it since the book told me to have it serviced ASAP? Just don't want to spend a fortune with the dealership if not necessary.
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Thursday, February 21st, 2019 AT 6:48 AM
Tiny
JWAYNE1986
  • MEMBER
  • 10 POSTS
I was told by a experienced mechanic that I could find some one with a computer/programmer and turn my A.B.S/T.C.S etc. Off but not sure if that's smart lol (I'm not a mechanic).
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Thursday, February 21st, 2019 AT 6:53 AM
Tiny
LYNCH890
  • MEMBER
  • 13 POSTS
You can tell if the ABS works by slamming on the breaks (don't go crazy with it, though) and see if the wheels lock. If they do, your ABS is not doing what it should.
Perform this with caution and make sure your off public roads as to avoid a potential accident. Preferably use a deserted parking lot or something.
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Thursday, February 21st, 2019 AT 7:07 AM
Tiny
JWAYNE1986
  • MEMBER
  • 10 POSTS
Okay and if the ABS system isn't working what would you recommend I do from there?
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Thursday, February 21st, 2019 AT 7:10 AM
Tiny
LYNCH890
  • MEMBER
  • 13 POSTS
Have the wheel speed sensor tested first. Usually a simple multimeter could do the job, but if you're not mechanically inclined, I suggest you take it to shop and ask for a check. Sometimes the issue is simple and inexpensive, but who knows? I can't say for sure from a distance.
The ABS system can be disabled and that means you're going to have to alter your driving habits just a bit. Most older cars had no ABS and even some newer low-end models, but that doesn't mean they're liability.
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Thursday, February 21st, 2019 AT 7:26 AM
Tiny
JWAYNE1986
  • MEMBER
  • 10 POSTS
Thank you so much. Sure do appreciate your expertise.
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Thursday, February 21st, 2019 AT 7:30 AM
Tiny
LYNCH890
  • MEMBER
  • 13 POSTS
I'd like to also add that a damaged wheel bearing could result in loss of ABS/ESP. These bearings have a signal pick-up strip which the sensor reads.
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Thursday, February 21st, 2019 AT 7:34 AM
Tiny
LYNCH890
  • MEMBER
  • 13 POSTS
You're welcome, I hope I managed to help somewhat. Take care.
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Thursday, February 21st, 2019 AT 7:36 AM
Tiny
JWAYNE1986
  • MEMBER
  • 10 POSTS
Sorry to bother you but one more question. Looking up underneath my truck on passenger front side I noticed that the cable coming off my wheel bearing got pinched almost into. Would that be the problem? If so could you possibly give me a guesstimate on how much it might be and how hard to replace?
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Thursday, February 21st, 2019 AT 9:08 AM
Tiny
LYNCH890
  • MEMBER
  • 13 POSTS
It's highly probable that to be the problem. Is it a two pin connector by the way?
If it's just the cable broken, it could be fixed by soldering.
Try this: if the cable is pinched and appears to be broken, cut and snip off the ends, then reconnect the cable/s and see if the lights go out. If they do, you'd need to solder it back together.
Make sure the power is off when you're cutting the wires or you might short it out.
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Thursday, February 21st, 2019 AT 9:50 AM
Tiny
JWAYNE1986
  • MEMBER
  • 10 POSTS
Okay, so would it be okay to disconnect the battery until I get back together?
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Thursday, February 21st, 2019 AT 9:52 AM
Tiny
LYNCH890
  • MEMBER
  • 13 POSTS
No, just the ignition switch.
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Thursday, February 21st, 2019 AT 9:56 AM
Tiny
JWAYNE1986
  • MEMBER
  • 10 POSTS
Okay, thanks.
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Thursday, February 21st, 2019 AT 10:01 AM
Tiny
LYNCH890
  • MEMBER
  • 13 POSTS
Hi, did you find the issue with the car?
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Saturday, February 23rd, 2019 AT 12:44 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I have seen the bearing hub cause this issue. here is a video that shows how to get the codes and a guide to help you step by step on how to change the bearing hub with diagrams below to help on your car:

https://youtu.be/rTtAnsOlZU4

This guide shows the hub replacement on a similar car, the process is the same.

https://www.2carpros.com/articles/bearing-hub-replacement

HUB / BEARING

REMOVAL
1. Raise and support the vehicle.
2. Remove the tire and wheel assembly
3. Remove the caliper adapter.

CAUTION: Never allow the disc brake caliper to hang from the brake hose. Damage to the brake hose will result. Provide a suitable support to hang the caliper securely.

4. Remove the disc brake rotor.
5. Remove the wheel speed sensor.
6. Remove the bracket securing the wheel speed sensor wire.
7. Remove the axle shaft nut. (if equipped with four wheel drive)
8. Remove the three mounting bolts for the hub/bearing assembly.
9. Remove the hub/bearing.

INSTALLATION
1. Install the hub/bearing assembly to the vehicle.
2. Install the three mounting bolts for the hub/bearing. Tighten the bolt to 130 Nm (96 ft. lbs.).
3. Install the axle shaft nut. Tighten the nut to 135 Nm (100 ft. lbs.). (if equipped with four wheel drive)
4. Install the bracket to the wheel speed sensor wire.
5. Install the wheel speed sensor to the hub. Tighten the bolt to 13.5 Nm (10 ft. lbs.).
6. Install the disc brake rotor.
7. Install the disc brake caliper adapter. Tighten the nut to 135 Nm (100 ft. lbs.).
8. Install the tire and wheel assembly.

I would replace both sides here is the hub and new sensor for $80.00 on amazon

https://www.amazon.com/gp/product/B019JC78T0/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=2carprcom-20&creative=9325&linkCode=as2&creativeASIN=B019JC78T0&linkId=1a37702345b996e043513d04b07101ea

Check out the diagrams (below). Please let us know what you find.
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Monday, February 25th, 2019 AT 1:42 PM

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