My Problem With The Abs System

FAM · October 23, 2009

Hello.

I own Yukon XL 2000 1500. I have a problem in the brake, that in some times the red brake light and ABS show up together. And some times not. I tried to search in the net to found solution to the problem. But I found out that there are people who suffer from the same problem. Solutions have been found not convincing.

I changed all the sensors, but the problem still exists.

I remember that there is a tone issue when running the vehicle, and I know that the system for high level of control car. Is it directly related to the brake system.

I searched a lot, and then found ( GM- trucks.com ). And I think that you are experience to tell me a solution to this problem.

Please, is there any one have the electrical circuits of the brake system and the ABS.

Is there a relationship between the ABS system and ride control system ? . Is there one has the electrical circuits of the Chambers of these services?

I thank's you with all my heart as it helped me.. And I thank you with all my heart as it did not help me.

Nytemare · October 23, 2009

the red brake light usually means you are low on fluid, or have low line pressure.

The ABS light...If you have replaced all the wheel sensors, is most likely due to either the line pressure sensor or the actual ABS control module itself.

I would check out the line pressure sending switch as it is something they both have in common.

Other things that could be the cause is a burnt ABS fuse, broken wires to the sensors, bad grounds.

FAM · October 29, 2009

Dear , Nytemare

Thank you for your time, and of your response to my problem.

I have checked the oil level and found it good .

At times, the ABS works well and without any problems. However, when any Road bumps,brake and the ABS light, Incoming again

I do not know, but I think that the problem is electrical. Therefore, I need to catalog the brake system for my car.

As you have one or tell me where I can find it in internet .

thank you again , AND Please help me to find a catalog. TO I can solve this problem.

Nytemare · October 29, 2009

I assume by catalog you mean get the codes read?? Or do you want a wiring diagram for the brake system?

I would wager a guess that your level sensor is gone, or your brake reservoir cap is busted if it only does this on bumpy roads. But it could also be loose connections somewhere in the system.

best thing to do is go to a good shop and get the codes read off the ABS system...even if the light isn't on they should be stored in the system. This will give you a better place to start troubleshooting.