View Full Version : Traction control

11-06-2005, 10:48 PM
My ASC+T light (the one that turns on when you turn asc+t off) turned on today on the highway. Pushing the ASC+T button did nothing. When i restarted the car it fixed. It happened again eventually though. Idea's?

Justin e36
11-07-2005, 08:57 AM
one of your wheel sensors is dying, or one of your tires is worn more than the others.

11-07-2005, 09:10 AM
one of your wheel sensors is dying, or one of your tires is worn more than the others.

that would trigger ABS light too.

Maybe your ASC relay needs a replacing?

Justin e36
11-07-2005, 09:54 AM
Not always. Sam on this forum (don't know his username on here though), had this problem. Checked relays, no luck. I gave him a new computer to try out, no luck. Turned out to be one of wheel sensors was intermittent. It tested as working with the VU meter, but he replaced it anyway---and that fixed the problem. But you're right, it would be much easier to check out the relay under the hood first. I think I have a few extra ASC and ABS relays kicking around somewhere too.

11-07-2005, 09:56 PM
Is there a writeup somewhere on how to check if it is the relay? Especially since its winter i really want my asc+t to work 100%

11-07-2005, 11:07 PM
yep wheel sensor starting to go. had the same thing. Started as asc, then became asc and abs lights.

11-08-2005, 01:35 AM
How much is it to repair a wheel sensor?

Justin e36
11-08-2005, 07:55 AM
finding out if its the relay is simple. the relay is in your fuse box, the orange one is ASC and the red one is ABS. You can test them with a volt meter, or try swapping them with someone else's.

Replacing the wheel sensor will run you around $70-$90 for a used one by my estimation. (going by standard labour costs.) You can do it yourself relatively easily though.

11-08-2005, 09:23 AM
new wheel sensor cost me $120 at Cross Avenue.

11-10-2005, 10:15 PM
Yeah its a wheel sensor, mine is the same.

11-20-2005, 08:13 PM
This happened to me today. My car was repaired from a small accident about a week ago and is now showing this problem.

The highbeams flashed when the lights came (ASC and ABS) on ? Is that normal - maybe trying to warn oncoming traffic :confused:

Its a 2000 328Ci.

Justin e36
11-20-2005, 08:26 PM
highbeams should not flash... ? they only flashed once? or repeatedly?

11-21-2005, 02:24 PM
if your highbeams flashed, it sounds like a problem in your electrical circuit.

11-21-2005, 02:57 PM
what would you guys recommend i do, this problem has not reoccured since i originally posted. Should I proceed in trying to find what the problem is or just hope it doesn't come back?

11-21-2005, 03:00 PM
!! Fix The Sunroof !!

11-21-2005, 03:42 PM
YOU fix my sunroof!

11-22-2005, 08:01 AM
The highbeams flashed when the ASC light came on. The ASC light would flash very briefly sometimes and othertimes would stay on for about 3 seconds (this is when the highbeams would flash). It was normally off. I spent more time watching the light than the road.

This happened about 3 times during a trip yesterday - I am getting it looked at today.

11-22-2005, 04:37 PM
and none of the wheels lost traction when this happened?

11-22-2005, 06:14 PM
I hope not - I was just cruising about 100km/hr on the 401.

The mechanic says the error code indicates ABS sensor (wheel speed sensor) - he drove it three times to reset the computer, and only once did it throw that error.

He also said the brake pads only have 10% left and recommends I change them, but is puzzled as to why the system isn't giving any warning that they are so low. What warning do you normally get ?

11-22-2005, 06:27 PM
You can get a replace brake pad warning, but just replace the pads and see if the problem continues. worn brakepads or worn wheels can cause problems with tracking, which can cause problems with asc+t