ABS, BRAKE, and ASR lights coming on

**JRENIGAR** · 06-27-2010, 07:27 AM

This has been a problem for a while so I had the car scanned and the following code showed up: C0550 Electronic Control Unit Malfunction. Thats what the Genisis scanner said. The shop guy said there are two boxes for the ABS, a hydraulic and an electric one and the electric one is bad. What do you guys think???

**SteveC** · 06-27-2010, 07:33 AM

I am far from an expert in vehicle matters, however it sounds like your vehicle's computer went south, and needs to be replaced. It is located on the passenger side firewall.

SteveC

**98maro** · 06-27-2010, 09:56 AM

My car has the same problem.
That code came up
But the problem is. R/R speed sensor

**Cutlass** · 06-27-2010, 06:31 PM

Originally Posted by JRENIGAR

This has been a problem for a while so I had the car scanned and the following code showed up: C0550 Electronic Control Unit Malfunction. Thats what the Genisis scanner said. The shop guy said there are two boxes for the ABS, a hydraulic and an electric one and the electric one is bad. What do you guys think???

Your mechanic is dead on. The EBCM is internally bad.

**35th-ANV-SS** · 06-28-2010, 09:00 AM

Originally Posted by 98maro

My car has the same problem.
That code came up
But the problem is. R/R speed sensor

You had (2) codes if I remember right. One was for the R/R wheel speed sensor and the other was for the EBCM.

**98maro** · 06-28-2010, 09:38 AM

Yes I had two codes
R/r speed sensor
And the Ebcm
The mechanic said that code came up
Cuz speed sensor
I'm gettin mine fixed next week
I hate those lights on all the time

**FORD RECOVERY EXPERT** · 06-28-2010, 11:36 AM

Originally Posted by SteveC

I am far from an expert in vehicle matters, however it sounds like your vehicle's computer went south, and needs to be replaced. It is located on the passenger side firewall.

SteveC

Right answer, WRONG computer.....

The ABS EBCM (Anti-lock Brake System Electronic Brake Control Module) is the comp needing replaced.... It is located on the driverside,

While this is an LT1 car, the EBCM is in the same spot. Notice the Blue wiring connector...

The PCM (Powertrain Control Module) is the one on the pass firewall....

**Cutlass** · 06-28-2010, 05:15 PM

Originally Posted by 98maro

Yes I had two codes
R/r speed sensor
And the Ebcm
The mechanic said that code came up
Cuz speed sensor
I'm gettin mine fixed next week
I hate those lights on all the time

your mechanic said that and he might correct, but I wouldn't be surprised if you had 2 problems.

**JRENIGAR** · 06-28-2010, 05:19 PM

So, Im guessing its not the box on the inner frame rail below the front sway bar that has the big electrical plug on it. Its the 4 way abs module that the brake lines run from to the calipers??? The local guy said he's changed out one or the other before and almost always had to go back and do the other one also. Sounds like an extra $1000 to me but he's been totally honest with me on other problems before.

**JRENIGAR** · 06-28-2010, 05:24 PM

Originally Posted by 98maro

My car has the same problem.
That code came up
But the problem is. R/R speed sensor

I couldnt get that lucky, but if it works please post back and I will try that before replacing the $974 ebcm. I have found used ones cheaper but would hate to pay 100 for one thats got the same problems as mine already has. Keep me informed, PLEASE!!! Thanks for all the help guys...

**35th-ANV-SS** · 06-28-2010, 05:27 PM

Originally Posted by JRENIGAR

I couldnt get that lucky, but if it works please post back and I will try that before replacing the $974 ebcm. I have found used ones cheaper but would hate to pay 100 for one thats got the same problems as mine already has. Keep me informed, PLEASE!!! Thanks for all the help guys...

he also had a R/R speed sensor code IN ADDITION to the EBCM code.

If it were me, and I had to drop $1000 on a new computer, I would be ditching the ABS.

**Phantom2kz** · 06-28-2010, 05:28 PM

your EBCM is bad and needs replaced. there are two of them,with and without ASR{traction control} the dealer wants about $400 for the part alone.
find the one you need on Flea-bay. I payed $40 for the EBCM and the BPMV, the other half.
they are plug and play so you dont have to program.

**Cutlass** · 06-28-2010, 06:00 PM

Originally Posted by JRENIGAR

The local guy said he's changed out one or the other before and almost always had to go back and do the other one also. Sounds like an extra $1000 to me but he's been totally honest with me on other problems before.

It happens sometimes. I've seen the hydraulic side leak brake fluid inside onto the electronic side, but you'd never know until you separate the two.

**00camaro20** · 06-28-2010, 06:15 PM

The same thing happened to my camaro with all 3 lights coming on. I switched the ABS module from my other camaro to the one acting up and that's how i determined what it was. I got mine used from a pick-and-pull for about $120

**35th-ANV-SS** · 06-29-2010, 05:15 AM

Originally Posted by 00camaro20

The same thing happened to my camaro with all 3 lights coming on. I switched the ABS module from my other camaro to the one acting up and that's how i determined what it was. I got mine used from a pick-and-pull for about $120

Wowzers...I live right by you.

**JRENIGAR** · 06-29-2010, 02:05 PM

Goin to fle-bay and see what I can get. If not there I dont think I will be paying alot for the module since my car has driven fine with it bad so far, I do however, realize the abs wont work when the lights are on. Thats really the only reason for even considering replacing it. Thanks guys...