On Board Diagnosis Logic

NOTE: If DTC P0340 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to "DTC P0643 SENSOR POWER SUPPLY ".

DTC DETECTING CONDITION AND POSSIBLE CAUSES CHART

DTC No.	Trouble diagnosis name	DTC detecting condition	Possible cause
P0340 0340	Camshaft position sensor (PHASE) circuit	The cylinder No. signal is not sent to ECM for the first few seconds during engine cranking. The cylinder No. signal is not set to ECM during engine running. The cylinder No. signal is not in the normal pattern during engine running.	Harness or connectors [Camshaft position sensor (PHASE) circuit is open or shorted.] Camshaft position sensor (PHASE) Camshaft (INT) Starter motor (Refer to "STARTING SYSTEM ".) Starting system circuit (Refer to "STARTING SYSTEM ".) Dead (Weak) battery