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Home >> Lexus >> 2002 >> IS 300 Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1346: Variable Valve Timing (VVT) Circuit Range/Performance Fault >> Circuit Description

Circuit Description

CMP sensor consist of a 3-tooth signal plate and a pick-up coil. Signal plate is mounted on camshaft. Crankshaft Position (CKP) sensor consists of a pick-up coil and signal plate. Signal plate has 34-teeth and is located on crankshaft timing pulley. DTC is set when there is a deviation between CMP sensor signal and CKP sensor signal. Possible causes are:

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