|
ABS and TRACS functions are in the same control unit, when one fails it disables the other one, since it uses the same components, signals and outputs.
All the ABS/TRACS control units (Installed on 96 and newer 850, 70 series and S80 models) will eventually fail after they reach 65,000 miles or 5 years. The average is 85,000 miles and/or 6 years for failures.
The erratic ABS light and/or no trouble codes is an indication of a defective ABS unit.
A dealer will charge from $60.0 to $120.00 to diagnose the problem and about 95% of the cases the mechanic will recommend to replace the ABS control unit.
Here's more information on this issue and a replacement alternative.
Vitor's Volvo ABS website
Click on the ABS / TRACS Repair link.
|