So, I was having the ABS & PSM Check engine lights come on shortly after starting up and taking off.......but the car ran fine.........then one day someone pulls up next to me and says my rear brake lights aren't working.....so I figured that out to be the little microswitch that gets activated by the brake pedal stalk..........well, guess what? As soon as I replaced the microswitch.......no more cel's! Interesting.......somehow the car is getting confused by the use of brakes but having no input from the microswitch......

I know I have seen several people in the past mention they had the occasional CEL from ABS/PSM.......those people should probably replace that microswitch and see if it helps..........$16 bucks and 30 minutes to replace....cheap.

Chris