Possible Causes
WARNING: This page is about a different car, the 2003 Lexus ES 300 and 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
- Defective stop light switch.
- Defect in wiring harness or connector between the ECM and stop light switch.
- Defective ECM.