As many of you know either reading my thread or through discussions I was having an ABS issue... when slowing down from any speed, my abs would activate as soon as I hit 30km/h. I ran the diagnostics and had the computer hooked up at the dealership and everything read correctly. All three dealerships I visited had never seen this problem before. When the computer was connected for the test drive, the abs wouldnt activate, but as soon as the computer was disconnected the abs started to activate on braking.

Similar issues through the dealer online network lead us to the following solutions:

1. Change wheel bearings on the front
2. Change wheel sensors
3. Change gyro

None of these are cheap options.

I changed the front wheel bearings this weekend, and my problem was solved. Apparently after some research, the reflector piece behind the magnetic strip begins to deteriorate over time, which causes the sensor to continue to register as working, but doesnt give proper readings to the computer, indicating to the vehicle that the car is in a spin or ice-like conditions.

Wheel bearings consist of removing 7 bolts. 2 for the caliper, one for the sensor, and 4 for the wheel bearing. One bolt is more difficult and you require a thin socket to get around the compression rod with the wheels turned all the way to allow space. Retorque the wheel bearing bolts at 60 ft-lbs.

 

interesting. I wonder if thats what causes my ABS to act up. My activates everytime I go in reverse. Never in drive though.

More research required. Thanks!