Originally Posted by
dedwards0323
And the light comes on if even one of them goes bad or dead (battery). It could be any one of them. But as has already been stated, since all of the sensors are 10+ years old, replacing them all may be a smart thing to do.
Ditto. Dealer's code reader indicated which wheel, a few years back, on ours. Replaced them all, new sensors "paired" with our car using OBD III (?) only available at an increasingly limited group of Dealers. It can be done, a wealth of info here, search TPMS101.