Title says it all. Have an 03' MCS ONLY the low tire light came on when driving home in the rain... Attempted to reset and no luck. Followed the proper procedures. Tried it multiple times.

Reset the ECU... Ran OBDII scan (no codes)... What gives? As soon as you start the car - without driving it - its already flashing....

Things I thought of - I replaced my e-brake boot a few months ago. Maybe I disconnected the "reset switch" and didn't reconnect? Will check that tomorrow.

Anyway... I have had a speed sensor issue in the past when I forgot to reconnect one... However when I had that issue - the "trifecta" came on?

SO, is this really a speed sensor issue? If you guys think it is - how do I go about finding out which sensor is bad?

Thanks!

 

isn't it nice to fix your own problem?

couldn't stand thinking about this the rest of the night so I pulled the center console. just as I may have suspected - TPMS switch was unplugged.

Plugged back in and vala.

Mods go ahead and delete this thread!