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thats correct. the warning lights come on and stay on. I did do the fault code check, I'm getting codes 28TCS c1214HC, c1248H and c1255H; and 60IPC U1160H. I gonna go looking for their descriptions next. Thanks for the help. I'm working on my ground connectors right now to see if that remedies anything. If not, I'll be figuring out how to un-install the EBCM and ship it to ABS fixer.
Make sure he can fix the unit before you ship it to him. From what I understand he can replace the relay in the EBCM but it looks like you may have a more serious problem with the EBCM due to the C1255 code. I don't have my service manual with me at this time but I think that one indicates a processor error in the unit.
You will also have to replace the BPMV which is the most expensive unit of the two. The BPMV probably caused the C1214 problem in the EBCM.
If you are doing this yourself check with Gene Culley (GM Parts House, a forum vendor) for his price on the units.
Bill
Last edited by Bill Dearborn; Dec 31, 2008 at 06:56 PM.
I will way in here... your 1255 problem is the kiss of death.. it will over ride the other codes in importance.. You will need an EBCM specific for your car. You will need a New one... dont trust anything but a new one... You can easily remove the old one and install the new one yourself.. with a little guidance. Gene Culley can pprovide you with a New ECBM. but it s not cheap at 400 Plus dollars
I will way in here... your 1255 problem is the kiss of death.. it will over ride the other codes in importance.. You will need an EBCM specific for your car. You will need a New one... dont trust anything but a new one... You can easily remove the old one and install the new one yourself.. with a little guidance. Gene Culley can pprovide you with a New ECBM. but it s not cheap at 400 Plus dollars
If this in fact the case, this is how to remove the ECBM:
I will way in here... your 1255 problem is the kiss of death.. it will over ride the other codes in importance.. You will need an EBCM specific for your car. You will need a New one... dont trust anything but a new one... You can easily remove the old one and install the new one yourself.. with a little guidance. Gene Culley can pprovide you with a New ECBM. but it s not cheap at 400 Plus dollars
What's your thoughts on the need to also replace the BPMV? I'm assuming that's a bit more complicated to replace.
What's your thoughts on the need to also replace the BPMV? I'm assuming that's a bit more complicated to replace.
I don't know if you can buy them separately. If you do replace the BPMV, you will have to take it to the dealership to bleed it. A Tech II has to be used to cycle through all of the systems while bleeding it.
This is the one I telling you about that I got for $300 new, and it's over $2000 at the dealership. It's for an 05, but they are similar:
i've never brought parts with me to a dealer. that work ok?
I changed the EBCM/BPMV myself. You can still bleed the brakes and get a decent pedal. When you start the car, the EBCM goes through a check. Until it is bled, it will fail this check and throw a CEL. You won't have ABS, traction control, variable steering, etc., but you will still have brakes to drive the car to the dealership.
I changed the EBCM/BPMV myself. You can still bleed the brakes and get a decent pedal. When you start the car, the EBCM goes through a check. Until it is bled, it will fail this check and throw a CEL.
It doesn't throw a Check Engine Light (CEL). Depending on how much air is in the unit it might not illuminate any light but the pedal could be spongy until you get the unit bled.
It doesn't throw a Check Engine Light (CEL). Depending on how much air is in the unit it might not illuminate any light but the pedal could be spongy until you get the unit bled.
Bill
I drove mine for about 2 months like that. You may be right, I may not have had a CEL. I did have a Traction Control light and a warning on the DIC to check traction control system and ABS system and neither worked until I got it bled out.
I'm going with the assumption I need to replace both the EBCM and BPMV. Fault codes c1214 and c1255. Looking for economical way to buy. Any suggestions?
Make sure he can fix the unit before you ship it to him. From what I understand he can replace the relay in the EBCM but it looks like you may have a more serious problem with the EBCM due to the C1255 code. I don't have my service manual with me at this time but I think that one indicates a processor error in the unit.
You will also have to replace the BPMV which is the most expensive unit of the two. The BPMV probably caused the C1214 problem in the EBCM.
If you are doing this yourself check with Gene Culley (GM Parts House, a forum vendor) for his price on the units.
Bill
I've yet to repair the ABS on my car. Recieved some great leads several months ago from you and others on how to pull up fault codes, as well as how to make the repair, but after checking the cost of parts at the time, I chose not to replace the modulator valve and the control module.
I'd like to go ahead and fix this, so I ran the part numbers through GM parts house last night and saw that the control module is now $700 and the modulator valve was around $1500. Do you know of any less costly alternatives?
I'm showing fault codes of 1214, 1248 and 1255. One of the guys on-line said that the 1255 code means both units will probably need to be replaced.
I've yet to repair the ABS on my car. Recieved some great leads several months ago from you and others on how to pull up fault codes, as well as how to make the repair, but after checking the cost of parts at the time, I chose not to replace the modulator valve and the control module.
I'd like to go ahead and fix this, so I ran the part numbers through GM parts house last night and saw that the control module is now $700 and the modulator valve was around $1500. Do you know of any less costly alternatives?
I'm showing fault codes of 1214, 1248 and 1255. One of the guys on-line said that the 1255 code means both units will probably need to be replaced.
Would like your thoughts on that too. Thanks...
I think you have to replace both units. C1255 indicates an internal EBCM failure which is probably the kiss of death for the EBCM. C1214 is a failure that occurs inside the EBCM but it also affects the BPMV. If you read Step 3 in the diagnostic procedure above it tells the user to check the resistance of the pump motor circuits to ground. If that resistance isn't infinite Step 4 of the procedure tells the user to replace both the BPMV and EBCM. That is probably what the dealer tech did to tell you what parts had to be replaced. You can do that check yourself with a digital multimeter to double check what you were told. The part of the EBCM that fails when code C1214 shows up can be repaired. However, the part that fails and generates the C1255 code cannot be repaired. If C1255 was the only code present all you would have to do is replace the EBCM. C1248 will go away when you resolve the C1255 code. By the way is the red brake light lit on the I/P?
I think you have to replace both units. C1255 indicates an internal EBCM failure which is probably the kiss of death for the EBCM. C1214 is a failure that occurs inside the EBCM but it also affects the BPMV. If you read Step 3 in the diagnostic procedure above it tells the user to check the resistance of the pump motor circuits to ground. If that resistance isn't infinite Step 4 of the procedure tells the user to replace both the BPMV and EBCM. That is probably what the dealer tech did to tell you what parts had to be replaced. You can do that check yourself with a digital multimeter to double check what you were told. The part of the EBCM that fails when code C1214 shows up can be repaired. However, the part that fails and generates the C1255 code cannot be repaired. If C1255 was the only code present all you would have to do is replace the EBCM. C1248 will go away when you resolve the C1255 code. By the way is the red brake light lit on the I/P?
Bill
There is no red brake lite. What do you think about repairing the control module and replacing them Brake modulator valve?
Mark, my 99, Gene Culley could not supply an ABS unit. Found one on ebay from Thepartslady 325.00 Good luck Jerry
i went to thepartslady.com. but that gives you several choices. just wondering who you bought your parts from ? I was unable to find the parts needed for this repair.