Circuit Description
WARNING: This page is about a different car, the 2000 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
The Variable Valve Timing (VVT) sensor consists of a signal plate and pick-up coil. The signal plate has one tooth and is mounted on each intake camshaft. The VVT sensor provides feedback to ECM in order to control intake valve timing. DTC P1346 is set when ECM detects a deviation in crankshaft position sensor and VVT sensor for bank No. 1 (right cylinder head). DTC P1351 is set when ECM detects a deviation in crankshaft position sensor and VVT sensor for bank No. 2 (left cylinder head). Possible causes are:
- Mechanical system malfunction (timing belt stretched of timing belt teeth jumped).
- Defective ECM.