My ABS & Tracs Off lights are both going on and off. I had a problem when slowly pressing the brake to stop, the brake pedal would sometimes kick in and out and pulsate as if ABS brakes were engaged. Volvo said I need a new module-$560. I went to a mechanic who claims to specialize in Volvo's and he insisted the problem is NOT the module but the ABS wheel sensors. He replaced the rear wheel sensors. Not 2 days later, lights going on/off again. He looked at it again and made some minor adjustments. (Incidentally, he claims to have same diagnostic equipment as Volvo.) The same night I picked it up, the lights went on/off again. I don't have the pulsating anymore when I press the brake but now every so often I hear a springing/clicking sound, then the lights go on. Now I am reading this website about this module problem with '98 S70's. Was Volvo right and this mechanic wrong? The mechanic called me a couple of days ago to see how things were going and he asked me to bring it in again. He still insists it is not the module. Now he thinks it might be a selenoid (sp?). Who do I believe?