Hi all,

I'm working on a project 98 pace car that I bought. It had a small fire near the EBCM, and the repair shop replaced the whole harness and EBCM. However, they replaced it with a standard M-code, which has no Active handling (JL4). I don't know for sure on the wiring if it was the correct JL4, but it's possible they got it from the same car, in which case it wouldn't be correct. So, I can live without the TCS unit connecting, or I can fix it. I've looked, and obtaining the V coded unit is difficult right now (none on eBay at the moment) and would be expensive if found ($1500-2000). Which leads me to the question - is there any way to get the car to just work with the M-code?

I know it's a ton of work to go from M to V, mainly with adding sensors, but what about the reverse? Can I turn off the JL4 option in a Tech2 or HPTuner? Anyone know what else I'd have to change, possibly a SWPS or something?

Car is very nice, fire did no lasting damage. Paint/Decals on hood are perfect. I did replace the cooling fan and top radiator cover to get rid of some melted plastic, but otherwise the car is very, very nice!

I know there's a write up on switching to the 2nd gen ABS/TC unit, but I'm not really wanting to spend 40+ hours on this. And theoretically, the M-coded unit already installed in the car is in perfectly good shape.

Thank you for all input as I learn more about this system.

Thanks,
Joshua

 

On my 2000 the Active Handling(JL4) is not enabled under the BCM RPO Special Funtions because I have a M coded EBCM .
If you do the same withe a Tech2 /Tech2win or similar bi direcional scanner I guess it will work fine with a M code EBCM instead of a v code EBCM in your car

 

OK, now that we know it's an option that can be turned on/off - anyone know what all the differences were between the JL4 option? I already know Pump/Module, likely wiring harness and center console switch, and possibly steering wheel position sensor? Anything else on a backwards basis? I know there were more things added to get to JL4, but not sure if anything else is needed going in reverse.

Thanks OELARSE so much for your help so far!

Joshua