Since i've gotten the car, the ABS and tracs off lights have come on intermittently. A few months ago, my car went into "limp mode", with the flashing arrow on and the car apparently stuck in a high gear. I brought this to a Volvo mechanic who cleaned the PNP switch for me, claiming it would save me money and that the sensor would be fine. A couple of weeks ago, I brought the car back to the mechanic to finally clear up the ABS and tracs lights. After bringing the car back and forth to him four times, he finally decided that it wasn't sensors, and that the ABS module was the problem. He said it is very expensive and that it would be fine to drive the car and it wouldn't be a problem. The next day, I was driving and the car went into "limp mode" again. Thinking it was the PNP, I rowed the shifter twenty times back and forth. While this did not turn off the lights, it did get the car driving correctly again. When I brought it back to him, he said the ABS module by all means had to come out or the car would never be right again.
I have very little confidence left in this mechanic at this point, so I wanted to run it by you guys. Here is what I think is going on... The PNP switch needs to be replaced and the ABS module needs to be rebuilt. However, the ABS module did NOT put the car into limp mode. Can the ABS module even do this? I've read you can even drive the car without the module in. What do you guys think?
Thanks and sorry for the long post.
-Patrick






