The tire pressure sensor is in the tire, and at ten years old, the batteries are dead. You have to replace all four or put a little piece of black tape over the dash light like I did. But that has nothing to do with the ABS sensors, those are hardwired at the hubs. The exhaust pipe behind the muffler, where the pipe goes up over the read axle. That is notorious for breaking off and blowing hot exhaust on the wiring harness and melting it. Check there.
