Thread: Traction control stopping me dead.

Hello people,

This is the state of play, I have put a 2 inch lift on the disco, removing the air bags and going to coil springs all round and fitted new front abs sensors in the rear for longer leads.

So far so ordinary, used the nanocom to switch from air to coils and once everything was loaded into the ECU off for a test drive.

SLS light stays off and I am a happy bunny, until I try to turn right at the roundabout, the traction control cuts in so violently it almost stops me on the road, can't give any throttle at all, literally anything above tick over and the tc goes off, the moment I'm back facing straight I can put my foot to the floor without any trouble, tried a couple of left turns and they seemed fine as well, right turn and I'm back at a standstill.

Nanocom says nothing is wrong, no faults logged at all and the resistance in all the abs lines seems to be the same.

Any suggestions at all would be very gratefully received, the only lines I touched were at the back and out seems unlikely they would be direction dependent, but I'm happy to be corrected if it's a thing.

This is my issue, I would understand if there was a fault and the three amigos came on, then the new sensors in the back are the issue, but how is the system getting the idea that one wheel is spinning I've no idea. Can't really tell which wheel is being braked, I can tell you that the brakes seem to be pretty good though!

Originally Posted by PhilipA

I am having a hard time thinking through how traction control could do that, as when a wheel spins the brakes are only applied to that wheel.

However in the spirit of experimentation I suggest you restore the old sensors to the back then try it. You will then know if it is something to do with the sensors.

I guess I would also look at the tone rings to see if there is any grease blocking them or whatever.

Another thought is whether the front sensors are the same length installed as the rears.

AFAIK the sensors are simply counters that sense the tone rings and could be wired either way around.
Regards PhilipA
BTW do you know which brakes were being applied? My guess would be rear as that is what you changed.