I just had a speed sensor ring replaced on my 1999 volvo s80, but my abs and stc warning lights are still on. Is there a need to reset the abs to put the lights out. (I realize there is a possibility that it could also be a module, but would like to see if resetting it works)
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having the same problem with my 1999 s80 2.9 . replaced the abs module twice and still get the brake failure warning. when the ignition key is turned there is a clicking sound from the center console beneath the shifter, then the brake failure warning, and the car will not start. (also after the last abs module replacement the car sometimes gets stuck in park).
the check engine light is probably related to the abs light. have the car scanned to find out wich sensor is bad. it's probably one of the front wheel speed sensors going bad or the abs module is going bad
I have had the same problem with my car for 3 months now. It is the ABS module that needs to be replaces. Ignore the stop ASAP light the brakes will still function as standard brakes. You just don't have ABS brake functionality or STC when those lights are on. Your car should still drive fine. Go on line and order a rebuilt ABS module for about $200 and the problem is solved. Hope that helps.
the ring you mention removed is called the exciter ring and is a vital part of the abs system to work properly so have new ring fitted asap this is why abs light etc is on in the uk this would fail mot safety test i am surprised the garage?? did ot renew this exciter ring? knowing it affects the abs ie makes it none operational should it need to operate ? also if involved in accident? and car brakes are checked this serious fault may have an effect on insurance claim hope this explaines??
abs circuit board normally also can cause no speedo /1st you need to have volvo read the code and give you a print out or just throw money out the car window? generic scan tools are very limited on codes and history