2021 Nissan-Datsun Sentra SFACTORY OEM SERVICE PROCEDURE

Component Inspection

  1. CHECK THROTTLE POSITION SENSORΒ 
    1. Turn ignition switch OFF.
    2. Reconnect all harness connectors disconnected.
    3. Perform "Throttle Valve Closed Position Learning". Refer to Work Procedure .
    4. Turn ignition switch ON.
    5. Set selector lever to D position.
    6. Check the voltage between ECM harness connector terminals as per the following conditions.

      ECM

      Condition

      Voltage

      Connector

      +

      -

      Terminal

      F25

      85

      90

      Accelerator pedal

      Fully released

      More than 0.36 V

      Fully depressed

      Less than 4.75 V

      89

      Fully released

      Less than 4.75 V

      Fully depressed

      More than 0.36 V

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

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

Factory Service Tools

Use the Manual With the Right Hardware

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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