DTC Detection Logic

DTC No.	Trouble diagnosis name	DTC detecting condition	Possible cause
P0643	Sensor power supply circuit short	ECM detects that the voltage of power source for sensor is excessively low or high.	Harness or connectors (Accelerator pedal position sensor 1 circuit is shorted.) [Camshaft position sensor (bank 2) circuit is shorted.] [Exhaust valve timing control position sensor (bank 2) circuit is shorted.] (Power steering pressure sensor circuit is shorted.) (Refrigerant pressure sensor circuit is shorted.) (Throttle position sensor circuit is shorted.) Accelerator pedal position sensor Camshaft position sensor (bank 2) Exhaust valve timing control position sensor (bank 2) Power steering pressure sensor Refrigerant pressure sensor Throttle position sensor