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MULTIPORT FUEL INJECTION (MPI) DIAGNOSIS MULTIPORT FUEL INJECTION (MPI) 13A-148 13A DTC P0122: Throttle Position Sensor (Main) Circuit Low Input. CAUTION If DTC P0122 has been set, TCL related DTC . CIRCUIT OPERATION • A 5-volt power supply is applied on the throttle position sensor (main) power terminal (terminal . TECHNICAL DESCRIPTION • The throttle position sensor (main) outputs volt- age which corresponds to the throttle valve open- • The ENGINE-ECU checks whether the voltage is within a specified range. . DTC SET CONDITIONS Check Condition • Ignition switch is "ON" position. Judgement Criteria • Throttle position sensor (main) output voltage is low. • MIL activated immediately • Engine speed limited to 1500rpm. . EOBD DRIVE CYCLE PATTERN None. . TROUBLESHOOTING HINTS (The most • Throttle position sensor failed. • Open or shorted throttle position sensor (main) circuit, harness damage, or connector damage. • Refer to component locations GROUP- • Refer to configuration diagrams GROUP- • Refer to circuit diagrams GROUP- 03DB180A CONNECTOR: B-06 B-06 (B) 16DB400A COVER ENGINE CONTROL UNIT AIR CLEANER |