Possible Causes
WARNING: This page is about a different car, the 2003 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set if ECM detects valve timing remains fixed and does not change when engine is at normal operating temperature and engine speed is 400-4000 RPM. Possible causes are:
- Incorrect valve timing.
- Defective VVT OCV.
- Defective VVT controller.
- Defective ECM.