Camshaft & Crankshaft Position Sensors (Avalon, Highlander 3.0L V6 & Sienna)
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
Camshaft position sensors and crankshaft position sensor deliver input signals to Engine Control Module (ECM). Camshaft position sensors may also be referred to Variable Valve Timing (VVT) sensors. Camshaft position sensors are located at flywheel end of each cylinder head, just below valve cover. Crankshaft position sensor is located at front of crankshaft, near crankshaft pulley. ECM may use input signals for determining ignition timing (spark advance), and for controlling fuel injection system, engine idle speed control system, Acoustic Control Induction System (ACIS) and VVT system.