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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS MULTIPORT FUEL INJECTION (MFI) 13A-324 DTC P0223: Throttle Position Sensor (Sub) Circuit High Input. . CIRCUIT OPERATION • A 5-volt power supply is applied on the throttle position sensor (sub) power terminal (terminal . TECHNICAL DESCRIPTION • The throttle position sensor (sub) outputs voltage which corresponds to the throttle valve opening • The ECU checks whether the voltage is within a specified range. . DTC SET CONDITIONS Check Conditions • Ignition switch is "ON" position. • TPS is normal. Judgement Criteria • MIL is actvated immediately. • Vehicle in Limp home - Engine speed limited to 1500rpm. . EOBD DRIVE CYCLE PATTERN None. . TROUBLESHOOTING HINTS (The most • Throttle position sensor failed. • Short circuit to 5 Volts in throttle position sensor (sub) circuit. • Harness or connector damage • Refer to component locations GROUP- • Refer to configuration diagrams GROUP- • Refer to circuit diagrams GROUP- DIAGNOSIS Required Special Tools: • Diagnostic Tool (MUT-III Sub Assembly) • MB991824: V.C.I. • MB991827: USB Cable • MB991910: Main Harness A • MB992044: Power Plant ECU Check Harness 03DB180A CONNECTOR: B-06 B-06 (B) 16DB400A COVER ENGINE CONTROL UNIT AIR CLEANER |