Detection Item & Possible Causes
WARNING: This page is about a different car, the 2002 Lexus GS 430 and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
DTC detection area is stop light switch circuit. Possible causes are:
- Defective stop light switch.
- Defective wiring harness or connector between ECM and stop light switch circuit.
- Defective ECM.