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Home >> Nissan-Datsun >> 2019 >> Sentra SR >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (1.8L) (1 Of 4) >> DTC / Circuit Diagnosis >> DTC P0123: TP Sensor >> Component Inspection (TP Sensor)
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Component Inspection (TP Sensor)

  1. CHECK THROTTLE POSITION SENSOR 
    1. Turn ignition switch OFF.
    2. Reconnect all harness connectors disconnected.
    3. Perform " Throttle Valve Closed Position Learning". Refer to Description .
    4. Turn ignition switch ON.
    5. Set selector lever to D (CVT) or 1st (M/T) position.
    6. Check the voltage between ECM harness connector terminals as per the following conditions.

      ECM

      Condition

      Voltage

      Connector

      +

      -

      Terminal

      F25

      77

      78

      Accelerator pedal

      Fully released

      Less than 4.75 V

      Fully depressed

      More than 0.36 V

      79

      Fully released

      More than 0.36 V

      Fully depressed

      Less than 4.75 V

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace electric throttle control actuator. Refer to Removal and Installation .