Originally Posted by allblackedout111
Does the ABS light come on when you start the car? Or does it not come on when you start it, but come on immediately as soon as you start to move the car? This can be a helpful clue as to whether or not it's a wheel speed sensor issue, or something else in the ABS system.
The ABS light comes on when the car is started.
Originally, the ABS light would come on intermittently, but the TPMS light was also activating. Thus, I figured the two were related. However, after I inflated the tires properly, the ABS light was still intermittent for about a day, and then it has been solid ever since.
Last night, I was able to borrow an aftermarket (non-Nissan) diagnostic tool that connects to the OBD connector and this particular tool showed codes for the rear sensors. We cleared the codes and then restarted the vehicle. Checked the codes again, and the rear sensor code occured again. Thus, my next move will probably be to replace the rear sensors.
The rear wheel speed sensors are not individual sensors like the front ones; they are purchased as a set in a single electrical harness. Just checking online, the front sensors are $24 each whereas the rear set is $133. The rear will be more difficult to change as well since the electrical harness snakes around the back end, and the connector is not as easy to access.
The wheel speed sensor bolts are pretty much stuck in the aluminum housing as well. My short term solution will be to just drill out the broken bolts and then use a bolt and nut to hold the sensors in place. The next stage after that will be to install some Helicoils.