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MULTIPORT FUEL INJECTION (MPI) DIAGNOSIS MULTIPORT FUEL INJECTION (MPI) 13A-372 13A DTC P0340: Camshaft Position Sensor Circuit. . CIRCUIT OPERATION • The camshaft position sensor power is supplied from the ECU (terminal No. 25). • Terminal No. 3 of the camshaft position sensor is grounded with ECU (terminal No. 8). • A 5-volt supply is applied to the camshaft position sensor output terminal (terminal No. 2) from the . TECHNICAL DESCRIPTION • The camshaft position sensor functions to detect the top dead center position of the number 1 cyl- • When the engine is running, the camshaft posi- tion sensor outputs a pulse signal. • The ECU checks whether pulse signal is input while the engine is cranking. . DTC SET CONDITIONS <Range/Performance problem - Alignment> Check Conditions • Engine speed is higher than 50 r/min. Judgment Criteria • Normal signal pattern has not been input for cyl- inder identification from the crankshaft position • MIL activated immediately. • Engine stalls. . DTC SET CONDITIONS <Range/Performance problem - Circuit continuity> Check Conditions • Engine speed is higher than 50 r/min. Judgment Criteria • Camshaft position sensor output voltage has not changed (no pulse signal is input) for 2 seconds. • MIL activated immediately. • Engine stalls. . EOBD DRIVE CYCLE PATTERN Refer to Diagnostic Function − EOBD Drive Cycle − . . TROUBLESHOOTING HINTS (The most • Camshaft position sensor failed. • Open or shorted camshaft position sensor circuit. • Harness or connector damage. • Refer to component locations GROUP- AK303129AB CAMSHAFT POSITION SENSOR B-106 (B) CONNECTOR: B-106 16DB400A COVER ENGINE CONTROL UNIT AIR CLEANER |