I was looking at how to put a Renesis engine in a car other than an RX-8 (no I don't need any "why would you do that?" type questions, it's all theoretical at this point anyway :) ) and while many problems are present, I wondered how the ECU knows the DCS/TCS is present?

Specifically, if you were taking an engine, ECU, and associated parts from an RX-8 with TCS, would you get problems with the ECU wanting the sensors present, or does it search for these at startup and if they're not present goes to a "non-DCS/TCS" mode? Or the other possibility, the ECU is different for cars without this feature?

its a can module reading info from wheels speed sensors etc.. if the pcm didnt detect the module it would throw a cel . but since you wouldnt have the same dash there wouldnt be a light:)

What about cars that do not come with DSC/TCS? Different PCM? And would a CEL from that cause it to run in open-loop only?

Thanks for the info though. :)

no same pcm just doesnt have that can module so the "as built" data is different. it doesnt look for that module. no cels make the car run in open loop only.