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Home >> Infiniti >> 2012 >> FX50 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (VK50VE) - FX50 - DTC U0101, U0113, U1003, U1001, U1024 & P006A Through P0133 / P0153 >> DTC P0122, P0123, P0227, P0228: TP Sensor >> Component Inspection

Component Inspection

  1. CHECK THROTTLE POSITION SENSOR
    1. Turn ignition switch OFF.
    2. Reconnect all harness connectors disconnected.
    3. Perform "THROTTLE VALVE CLOSED POSITION LEARNING: SPECIAL REPAIR REQUIREMENT ".
    4. Turn ignition switch ON.
    5. Set selector lever position to D.
    6. Check the voltage between ECM harness connector terminals under the following conditions:
    ECM Condition Voltage (V)
    Connector + -
    Terminal Terminal
    F111 73 [TP sensor 1 (bank 1)] 71 Accelerator pedal: Fully released More than 0.36
    Accelerator pedal: Fully depressed Less than 4.75
    77 [TP sensor 1 (bank 2)] 72 Accelerator pedal: Fully released More than 0.36
    Accelerator pedal: Fully depressed Less than 4.75
    78 [TP sensor 2 (bank 1)] 71 Accelerator pedal: Fully released Less than 4.75
    Accelerator pedal: Fully depressed More than 0.36
    74 [TP sensor 2 (bank 2)] 72 Accelerator pedal: Fully released Less than 4.75
    Accelerator pedal: Fully depressed More than 0.36

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: GO TO 2.

  2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
    1. Replace malfunctioning electric throttle control actuator.
    2. Perform "THROTTLE VALVE CLOSED POSITION LEARNING: SPECIAL REPAIR REQUIREMENT ".

    : INSPECTION END