Tested my recently-purchased scanner for the first time this afternoon. Good news — there were no major faults found. The head scratcher is that several faults were detected for the driver and passenger seats. I also could not clear these faults. The seats do operate normally in all respects. Ideas?

 

Including the headrest motors ?

Z

 

It certainly is a head scratcher trying to guess the faults without the codes.

 

^^^^^^^^^ this ! ^^^^^^^^^

well, OP, what are those codes ?

Z

 

Not sure adjustable head rests were available this model year (‘99). But I will try cycling the seat positions (forward/back, tilt, lumbar) to their full limits and reset the memory switches on the driver’s door.