Possible Causes
WARNING: This page is about a different car, the 2003 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
- If the following continues for 0.5 seconds or more: ignition switch is ON, brake pedal released and STP signal is OFF when the ST1- signal is OFF.
- Short in stop light switch signal circuit.
- Defective stop light switch.
- Defective ECM.