I recently purchased 99 FRC Corvette and it needed cleaning under hood, not up to my standards, clean but needed some love. That was Monday and Wednesday I drove car but lights began showing on dash to service traction control and abs but car operating fine. Thursday I drove car service lights on but now says service active handling. Did I do something wrong when cleaning engine compartment? Could it be I got something wet that caused this. I did not use high pressure when spraying water. Later that day the car started acting funny this time and when I hit the brakes, abs kicked in and steering pulled car to left had to pull over to side of road. I shut off traction control switch and now ok but lights still on. Any suggestions? No issues before cleaning engine compartment.

 

Had the day off so I decided to start checking for places for water to get in any connections annd I found that water had got into the plug of the EBTCM. I took a hair dryer to both sides of connection and after half hour put back together and drove car. Everything back to normal and all dash warnings gone. Hope this helps future viewers and will post if happens again.

 

Thanks for the solution. It's what makes the forum work. Glad you found it.