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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-830 DTC P0642: Throttle Position Sensor Power Supply . TECHNICAL DESCRIPTION • PCM checks the throttle position sensor power voltage for abnormal conditions. . DESCRIPTIONS OF MONITOR METHODS Throttle position sensor source voltage is smaller than the specified value. . MONITOR EXECUTION Continuous . MONITOR EXECUTION CONDITIONS Other Monitor (There is no temporary DTC stored in memory for the item monitored below) • Not applicable Sensor (The sensor below is determined to be normal) • Not applicable . DTC SET CONDITIONS Check Conditions • Battery positive voltage is higher than 6.3 volts. Judgement Criteria • Throttle position sensor power voltage should be 4.1 volts or less for 0.5 second. . OBD-II DRIVE CYCLE PATTERN None. . TROUBLESHOOTING HINTS (The most • PCM failed. |