Circuit Description
WARNING: This page is about a different car, the 2002 Lexus GS 430. However, it is still accessible from the selected car via links, so may be relevant.
The CMP sensor consists of a one-tooth signal plate and a pick-up coil. Sensor is mounted in No. 3 timing belt cover in left front of engine. Signal plate is mounted to front of left bank camshaft. DTC P0340 is set when no camshaft position signal is received by ECM from CMP sensor during cranking. DTC P0340 is also set when no camshaft position signal is received by ECM from CMP sensor with engine speed of 600 RPM or more. Possible causes are:
- Open or short in CMP sensor circuit.
- Faulty CMP sensor.
- Faulty left bank camshaft pulley.
- Faulty ECM.