Circuit Description
WARNING: This page is about a different car, the 2003 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
The Crankshaft Position (CKP) sensor consists of a magnet, iron core and pickup coil. The signal plate has 34 teeth and is installed in the crankshaft timing pulley. The NE signal sensor generates 34 signals at every engine revolution. The ECM detects the standard crankshaft angle based on the G (VV) signal, the actual crankshaft angle, and the engine speed. See Fig 1. DTC will set if ECM does not detect a crankshaft position sensor signal. Possible causes are:
- CKP sensor open or short circuit.
- Faulty CKP sensor.
- Faulty crankshaft timing pulley.
- Faulty ECM.