Recently my abs, traction, and brake lights all came on. At the same time, my car would shut off all power if the wheels spun too much. I went ahead and read the codes and did have a wheel speed sensor code which I went ahead and fixed right away. The codes remained after were c0896, c0898, and c0550. I went and read the system and found the abs module read 0 volts, tested the power and ground circuits and found everything read fine, I went ahead and took out the module and sent it here 97-07 PONTIAC GRAND PRIX ABS REPAIR - Module Repair Pro INC . I pretty much just stated what was going on with it and got it back in a little less than 2 weeks and now it's fine and no abs code or brake light 👍 if anyone is having the same issues I had, I hope this somewhat helps and it costed around $200 and a nearby shop wanted 1100 to have them fix it. There's also a couple videos on YouTube on how to remove it if you don't know how for some reason, this also follows for any model grand prix I'm pretty sure. I have the 06 gxp
