I have had a the check engine light and trac off light come on simultaneously. The lights will occationally go out, but then return later. No codes other than P0330 Knock sensor register on the Autozone code reader and my mechanic's Snap-on code reader. I have also noticed that the car will not go into overdrive if the wheels happen to slip with these dash warning lights lit. I have to turn off the engine to reset the computer to get the car and transmission to go into overdrive properly. The transmission will go out of overdrive after the wheels slip and the transmission drops out of overdrive.
Is this a known problem on the 2000 ES 300and what is the solution? Thanks, bob
The knock sensor diagnostic probably means the engine is sometimes running too lean. That can be due to a failing fuel pump, a plugged up fuel filter, or even an engine intake air filter.
It would not be unusual for OD to be disabled with a CEL and the Trac is a default condition when there is a CEL. Fix the CEL problem and Trac will be okay.