Originally Posted by aCiD
I was talking to one of my friends at shcool today who is a licensed Emissions Tester in Ontario about why this would happen.
He says that when he puts ANY car on the dyno when he tests them that these lights come on. (If the car has traction or ABS)
I guess Traction was only built to prevent skidding etc. it doesn't like it when you induce the loss of traction from engine power.
So this is a Universal thing, I'm assuming it means nothing wrong.
Nope, sorry. Traction Control is _designed_ to overcome loss of traction from engine power; ABS is designed to overcome loss of traction from braking power (on a bad surface). When it'* functioning normally you will get no warning lights no matter how many times you invoke it (e.g. when trying to accelerate in a bad snowstorm).
The reason your friend sees the warning lights during a dyno test is because the drive wheels are spinning but the rear wheels are sending no rotation signals at all, and the system can't figure out what that means, so it flags a warning light at you and bails. Actually your friend is supposed to switch off the traction control before doing the dyno test. (I think the ABS system will flag errors of its own during the test, which you can ignore).
Getting back to our original point: if you're getting warning lights during regular driving, it'* trying to tell you something.