Circuit Description
WARNING: This page is about a different car, the 2002 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
The CMP sensor consists of a 3-tooth signal plate and a pick-up coil. Signal plate is mounted in camshaft timing gear. 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 No. 1.
- Faulty camshaft timing gear.
- Faulty ECM.