2001 S 10 4wd, Orielly's scanned & codes for thermostat, brake light switch & right front wheel sensor came up. It's not over heating, brake lights work, & last month while on the rack, gave everything a good shake down. Now what? Thanks to who reply.

 

How many miles on this beast ?, did you have decent heat last winter ?....My astro throws a brake switch code every now and then (no light just in memory) I dont worry about it cause everything works also...the wheel sensor could be a chaffed wire , bad sensor or gap , dirty....its in the front hub and the wires are all visible.

 

never heard of a brake light switch code, but what do I know. The thermostat code is probably a coolant temp sensor code. Wheel sensor code could be a bad sensor or your needing to resolder joints on the abs module. do you know what the actual codes are?