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Home >> Infiniti >> 2018 >> QX60 AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (2 Of 6) >> DTC/Circuit Diagnosis >> DTC P0122: TP Sensor >> Component Inspection (Throttle Position Sensor)
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Component Inspection (Throttle Position Sensor)

  1. CHECK THROTTLE POSITION SENSOR 
    1. Turn ignition switch OFF.
    2. Reconnect all harness connectors disconnected.
    3. Perform Description .
    4. Turn ignition switch ON.
    5. Set selector lever to D position.
    6. Check the voltage between ECM harness connector terminals under the following conditions.

      ECM

      Condition

      Voltage

      Connector

      Terminal

      F78

      43 (TP Sensor 1)

      44

      Accelerator pedal

      Fully released

      More than 0.36 V

      Fully depressed

      Less than 4.75 V

      48 (TP Sensor 2)

      Fully released

      Less than 4.75 V

      Fully depressed

      More than 0.36 V

    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. Refer to EXPLODED VIEW
    2. Perform Throttle Valve Closed Position Learning. Proceed to Description .

    INSPECTION END