Anyone have to replace the EBCM?

[AmunRoo]

So I got my traction control off, ABS light and red brake light illuminated on the dash. I get codes c1214 and c1248. Basically telling me that my ebcm is no longer working. Anyone have any experience dealing with this issue? Is there something I should be looking at before I drop the $500 to buy this stupid part? Kind of frustrated because my dash looks like a Christmas tree. I also have a p0420 because of a high flow cat LOL

Any help or advice is greatly appreciated

[Paulaurora]

Its very rare that EBCM will fail but anything is possible. Most common issues are the wires that going to EBCM . It might be wires between the EBCM and your ABS sensors or the plug issue. On my intrigue and Aurora was the wires somewhere in middle of the car that was broken and caused the codes.

[AuroraGirlFromMars]

Aurora
1995–99 Teves Mark IV (non-integral)
2001–03 Delco/Bosch 5.3 Hybrid (non-integral)

The EBTCM is very reliable and often has no internal issues(still can)

You need to look at your grounds for it. I dont have a 2g manual set, but your body grounds for the thing Are WHACK in how they affect it.
You also need ot make sure its connection to the ECM is good and its ground(its all near eachother) are good.

If that checks out, you need to think about EMI. Do you have a lot of added features? Like big stereo?
Insulate the wires and check the wiring down the car like for ABS sensors etc.
Then, if checks, split the case. IF you see the valves are sticky it might need rebuild or cleaning. but you can send it in for that or find a used one. the pump should be universal in applications (VW, audi, gm , chryslker) but the computer attached is vehicle and RPO specific. so you may need to find a matching EBTCM

[AmunRoo]

I know my abs connections at the hub are good. No issues there. I will check the grounds tomorrow. I've read and seen some videos where the circuit boards solder joints are the failure point. Also, getting the module open is supposed to be a pain in the ass. So scan tool attached...

Ignition voltage: 14.85
Switched system batt voltage:.54
Pump motor feedback voltage: .54

Essentially, it has little to no voltage

[AuroraGirlFromMars]

sounds like you need to check your switched power wire to it

[Greg K]

When I was given a 2001 with a 3.5 engine Aurora last December, all the brake warning lights were on (traction, antilock, etc.). The dash lit up like Christmas!
What tends to fail in these EBCMs are solder connections. It took a bit of doing, but I removed my EBCM, opened it up, and resoldered some key connections, and it's been working like a top ever since. No warning lights, full functionality of Traction Control and Anti-Lock Braking.
Thankfully, many of the Corvettes of the era use the same EBCM, I discovered, and there are lots of sites and YouTube videos on how to resolder the usual suspects.
Here's one:
www.youtube.com/watch?v=0GXD76dFGD0
But search for more and see what you find.
The part would have cost me $600-$700 Canadian ...and I fixed mine for the price of the solder!
Hope this helps,
Greg

[Greg K]

I just wanted to add that it's not that hard a job, if you're patient and enjoy the journey. You access the EBCM from the front driver's wheel well.