Silverado ABS Module failure > 4X4REVIEW.COM: 4X4 Discussion Forums > 4X4REVIEW.COM:
There is no easy solution. But there is a relatively inexpensive solution. www.circuitsolutions.info will fix it for about $150 if you do your own labor. That is the uneasy part. Gavin (on the site) makes it sound easy. It is not. You have to make sure the torx heads are clear so you can get the bit into the hole. Removing the circuit card is not ideal on a lift in a garage. It will be difficult at home. STOP if you think you are going to break the torx bolts. It is easier if you remove the whole manifold, but DO NOT take his advice about not having to bleed the manifold. You will have to bleed your brakes twice a week for a month. Even at the dealer with the GM computer I need to put pressure on the brake reservior to completely bleed the brakes. A standard OBD II will NOT cycle the pump and the valves to clear the air from the manifold. You need a GM shop computer. Finally, I see many people who are happy that GM fixed it under warranty. I have bad news for you: Standard procedure is to scavage parts from a truck just off lease and put them on your truck when we do the work under warranty. We put your part on the lease truck and return the truck to GM (most vehicles off lease go back to GM). Then we charge the "new" part to GM as a warranty part and pocket the profit. So your new parts are probably just as old as the truck you have. Sorry. To sum it up. It is easiest to remove the circuit card if you remove the manifold from the truck. It is very hard to bleed the brakes if you take the manifold off the truck. If you can get the card off the manifold without taking the manifold off the truck you are in luck. -Bill
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Hey guys, Does puling the fuse kill the ABS idiot light on the dash? I have another problem besides this one, My emergency brake idiot light is also on. Mine is a 99' 2X Silverado, the same one used for a few of the product reviews on the site. Any one swapped out the module themselves and saved the $60+ an hour labor rates?
Jody
------------ Eric at 6/18/2002 2:40:00 PM
I had the same thing happen on my 99 Z71. The dealer agreed to pay about half of the price, 500.00. I had 55,000 miles on mine before it acted up. Seems like chevy needs to replace these things for free but we all know how that goes.
------------ Kevin at 6/4/2002 3:08:40 PM
All I had less than 36,100 miles on my 199 4 x 4 Silverado and the same module failed. Took it to chevy dealer and they were mover concerned with the 3 recalls on my vechicle than the ABS lights. I took it home and have not had ABS since. Now it seems the 4x4 won't work. Was working fine before I had the ABS lights come on. The just told me to get my 4 x 4 working again it was going to be 1850.00 Doesn anyone know how to clear the computer codes so my 4 x 4 starts working again. I know that is the problem because when I took it in to Chevy to fix they told me 950.00 I left with out it getting fixed, tried going into 2 x and it went in fine. Next time I used 4 x it would not come out. Tok it to them and now they said it will be 1850.
I will NEVER by a CHEVY again, The salesman said they know about the ABS problems yet he never told me. ANd they want to charge me to fix it. I am going to register a complaint with NHTSA. Thank you Eric for your input. ------------ David Dorman at 12/11/2001 6:37:44 PM
------------ Edward at 10/29/2001 11:32:18 PM
I have a 99 Silverado 2500 4x4. Last week I got in and started up my truck and the ABS module energized the pump after I turned on the key. The only way I was able to turn the pump off was to pull the 60amp fuse under the hood on the ABS system. It appears that the ABS Relay in the EBCM has stuck closed, keeping the pump energized. Has anyone else had this experience? If so, did you have to have the EBCM replaced or was there something that could be done to repair it?
Thanks! I work at a Chevrolet Dealer in Columbia, Missouri and I just replaced a Module on a truck with the same problem as yours. (pulling fuse.) You are correct about the Relay being stuck internally in the EBCM. They are not serviceable and must be replaced. It is a fairly easy job as long as you get all the dirt out of the torx screws. The controller then must be reprogrammed for the correct tire size using the TechII scan tool. We charged an hour for the whole job. You can also just leave out the fuse and not have any ABS like back in the good ol' days. David
There is no easy solution. But there is a relatively inexpensive solution. www.circuitsolutions.info will fix it for about $150 if you do your own labor. That is the uneasy part. Gavin (on the site) makes it sound easy. It is not. You have to make sure the torx heads are clear so you can get the bit into the hole. Removing the circuit card is not ideal on a lift in a garage. It will be difficult at home. STOP if you think you are going to break the torx bolts. It is easier if you remove the whole manifold, but DO NOT take his advice about not having to bleed the manifold. You will have to bleed your brakes twice a week for a month. Even at the dealer with the GM computer I need to put pressure on the brake reservior to completely bleed the brakes. A standard OBD II will NOT cycle the pump and the valves to clear the air from the manifold. You need a GM shop computer. Finally, I see many people who are happy that GM fixed it under warranty. I have bad news for you: Standard procedure is to scavage parts from a truck just off lease and put them on your truck when we do the work under warranty. We put your part on the lease truck and return the truck to GM (most vehicles off lease go back to GM). Then we charge the "new" part to GM as a warranty part and pocket the profit. So your new parts are probably just as old as the truck you have. Sorry. To sum it up. It is easiest to remove the circuit card if you remove the manifold from the truck. It is very hard to bleed the brakes if you take the manifold off the truck. If you can get the card off the manifold without taking the manifold off the truck you are in luck. -Bill
--
Hey guys, Does puling the fuse kill the ABS idiot light on the dash? I have another problem besides this one, My emergency brake idiot light is also on. Mine is a 99' 2X Silverado, the same one used for a few of the product reviews on the site. Any one swapped out the module themselves and saved the $60+ an hour labor rates?
Jody
------------ Eric at 6/18/2002 2:40:00 PM
I had the same thing happen on my 99 Z71. The dealer agreed to pay about half of the price, 500.00. I had 55,000 miles on mine before it acted up. Seems like chevy needs to replace these things for free but we all know how that goes.
------------ Kevin at 6/4/2002 3:08:40 PM
All I had less than 36,100 miles on my 199 4 x 4 Silverado and the same module failed. Took it to chevy dealer and they were mover concerned with the 3 recalls on my vechicle than the ABS lights. I took it home and have not had ABS since. Now it seems the 4x4 won't work. Was working fine before I had the ABS lights come on. The just told me to get my 4 x 4 working again it was going to be 1850.00 Doesn anyone know how to clear the computer codes so my 4 x 4 starts working again. I know that is the problem because when I took it in to Chevy to fix they told me 950.00 I left with out it getting fixed, tried going into 2 x and it went in fine. Next time I used 4 x it would not come out. Tok it to them and now they said it will be 1850.
I will NEVER by a CHEVY again, The salesman said they know about the ABS problems yet he never told me. ANd they want to charge me to fix it. I am going to register a complaint with NHTSA. Thank you Eric for your input. ------------ David Dorman at 12/11/2001 6:37:44 PM
------------ Edward at 10/29/2001 11:32:18 PM
I have a 99 Silverado 2500 4x4. Last week I got in and started up my truck and the ABS module energized the pump after I turned on the key. The only way I was able to turn the pump off was to pull the 60amp fuse under the hood on the ABS system. It appears that the ABS Relay in the EBCM has stuck closed, keeping the pump energized. Has anyone else had this experience? If so, did you have to have the EBCM replaced or was there something that could be done to repair it?
Thanks! I work at a Chevrolet Dealer in Columbia, Missouri and I just replaced a Module on a truck with the same problem as yours. (pulling fuse.) You are correct about the Relay being stuck internally in the EBCM. They are not serviceable and must be replaced. It is a fairly easy job as long as you get all the dirt out of the torx screws. The controller then must be reprogrammed for the correct tire size using the TechII scan tool. We charged an hour for the whole job. You can also just leave out the fuse and not have any ABS like back in the good ol' days. David
