Circuit Description
WARNING: This page is about a different car, the 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
The Variable Valve Timing (VVT) system controls intake valve timing in response to driving conditions. Engine Control Module (ECM) controls Variable Valve Timing (VVT) Oil Control Valve (OCV) to ensure correct valve timing. VVT OCV is located is mounted on intake side of cylinder head, on flywheel side of engine. Oil pressure controlled by the VVT OCV is supplied to the VVT controller. VVT controller then changes relative position between camshaft and crankshaft. VVT controller is located on the back of intake camshaft. DTC P1349 is for bank No. 1. DTC P1354 is for bank No. 2. DTC is set if ECM detects valve timing does not change (fixed timing). Possible causes are:
- Incorrect valve timing.
- Defective VVT OCV.
- Defective VVT controller assembly.
- Defective ECM.