Light came on after unplugging the abs wheel sensors when I dropped the front subframe out. How do I read the abs codes? Do I just need to reset? I have a KKL vag-com and an elm327 interface. I can't spend 120000000 on volvo scanner... Another problem is the service light comes on when I start the car but goes off after driving for a bit. Is that the pending SAS code? I haven't put the diode in yet. I'm sure the answer is somewhere here but the information seems very scattered and the model differences is frustrating as all hell. 98 seems like a problematic model year when everything changed. Not sure what I got... Not sure what I need. Can I build the LED FCR for this?