01XJ ABS brake test?

McQue

NAXJA Forum User

Location

Plainville, Connecticut

• May 31, 2014

• #1

I own a stock 01XJ , Automatic 6cyl

Had to lock up the brakes to avoid a car that pulled out in front of me.
The road was slightly wet. My tires locked up, I slid about 50 to 75 feet and stopped. I never felt the ABS kick in and automatically pump the brakes. I was going about 40mph or less when I hit the brakes. I have felt them kick in on another occasion when I had to lock em up.

So now I am wondering if they are working properly. Is there a way to properly road test them?

No CEL light, no codes pending, Jeep is running fine.

 

Cottontail

Three-De Off-Road

Location

Nashville, TN

• May 31, 2014

• #2

I'll ask the obvious. Are you sure your jeep is ABS equipped? Lots of them aren't.

 

McQue

NAXJA Forum User

Location

Plainville, Connecticut

• Jun 5, 2014

• #3

Yes , the Jeep is ABS equipped.

 

Talyn

NAXJA Forum User

Location

Radford, Communistwealth of Virginia

• Jun 6, 2014

• #4

Find a dirt road and slam the brakes from about 25mph. You should feel and hear the ABS activate.

 

9

93gc40

NAXJA Forum User

Location

Visalia, California

• Jun 6, 2014

• #5

Check fluid, check pad wear, test sensors..

 

W

winterbeater

NAXJA Forum User

Location

Royal Oak, Michigan

• Jun 7, 2014

• #6

93gc40 said:

Check fluid, check pad wear, test sensors..

Click to expand...

How do you test the sensors?

 

scoobyxj

NAXJA Forum User

NAXJA Member

Location

Coshocton, OH

• Jun 7, 2014

• #7

Only way to test it (other than trying to force it to activate) is to hook it up to the Chrysler scan tool. Other high end scan tools like a Snap On Ethos, or other similar diagnostics tools might be able to do it tool, but it has to be able to communicate with the Chrysler software...

 

J

joejeep92

NAXJA Forum User

Location

Beloit, KS

• Jun 8, 2014

• #8

well, low budget confirm voltage coming out of the sensors. You can do this with a volt-meter. This won't confirm they read the proper speed but it will confirm there are is some function. Your abs kicks in when a wheel speed sensor signals a lock up situation and initiates the action of the ABS hold and release solenoids. If it senses any faults though it disables the system. See if you can get codes pulled and it can make your pinpoint process so much easier.

 

Talyn

NAXJA Forum User

Location

Radford, Communistwealth of Virginia

• Jun 8, 2014

• #9

If there is an issue with a sensor the ABS system will throw a code. I wouldn't be too concerned with the sensors. If there is in fact a problem with the ABS and the ABS light isn't on I would point toward the ABS controller on the pump.

 

J

joejeep92

NAXJA Forum User

Location

Beloit, KS

• Jun 9, 2014

• #10

ABS controller should throw a code too. If it closes or opens a solenoid and doesn't see a difference of wheel speed it should throw.