2021 Nissan-Datsun Sentra SFACTORY OEM SERVICE PROCEDURE

Component Function Check

  1. CHECK BRAKE PEDAL POSITION SWITCH FUNCTIONΒ 

    SYMBOL With CONSULT

    1. Turn ignition switch ON.
    2. Select "BRAKE SW" in "DATA MONITOR" mode of "ENGINE" with CONSULT.
    3. Check "BRAKE SW" indication as per the following conditions.

      Monitor item

      Condition

      Indication

      BRAKE SW 1

      Brake pedal

      Slightly depressed

      OFF

      Fully released

      ON

    SYMBOL Without CONSULT

    1. Turn ignition switch ON.
    2. Check the voltage between ECM harness connector terminals as per the following.

      ECM

      Condition

      Voltage

      (Approx.)

      Connector

      +

      -

      Terminal

      E16

      150

      162

      Brake pedal

      Slightly depressed

      0 V

      Fully released

      Battery voltage

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Refer to Diagnosis ProcedureΒ .

Factory Service Tools

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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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