Just for info.
There is always a common stream of posts with regards to people having problems with 'Anti Skid Service Required'.
The Anti Skid message can be triggered by many causes so it is always worth having the codes read properly with a really good code reader, of course the best one for this job is Volvo VIDA/DICE and matters not if it one a forum member/garage may possess or a dealer. Generic code readers are fine but will not always pin point problems like VIDA/DICE can.
There are a number of different possibilities that can cause the Anti Skid message such as:
ABS Sensor faulty at any of the wheels
ABS reluctor ring cracked
ABS ECU faulty
Steering wheel angle sensor
Yaw rate sensor
There are other factors but these would be the main one. The most common on the S40/V50 vehicles and especially around the 2005 to 2007 range is the ABS ECU which of course is the most expensive one too. There is however a specific code that determines if it is the ECU or not and thus why codes being read is important. As the post above depicts there are places to go that can re-condition your ABS ECU for far cheaper than a new module.
Point to note though, the ABS modules are coded to the cars so you can't just get a 2nd hand one from any car and expect it to work, dealers will not re-code the parts either like is possible with other manufacturers.
