Possible Causes
WARNING: This page is about a different car, the 2003 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.
These DTCs use two-trip detection logic. DTC is set if vapor pressure sensor malfunctions. Possible causes are:
- Vapor pressure sensor circuit is open or shorted.
- Defective vapor pressure sensor.
- Defective ECM.