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B18 Owner's 2020-2025 Sentra owner information B18 Service 2020-2025 Sentra Workshop manual B17 Owner's 2013-2019 Sentra owner documentation B17 Service 2013-2019 Sentra service information

Nissan Sentra B18 (2020-2025) Service Manual: Knock Sensor

Component Inspection

Component Inspection

  1. CHECK KNOCK SENSOR

    1. Turn ignition switch OFF.

    2. Disconnect knock sensor harness connector.

    3. Check resistance between knock sensor terminals as follows.

      Note:

      It is necessary to use an ohmmeter which can measure more than 10 MΩ.

    Knock sensor

    Condition

    Resistance

    Terminal

    1

    2

    Temperature

    20°C (68°F)

    532 – 588 kΩ

    CAUTION:

    Never use any knock sensors that have been dropped or physically damaged. Use only new ones.

    Is the inspection result normal?

    YES >>

    INSPECTION END

    NO >>

    Replace malfunctioning knock sensor. Refer to Exploded View.

    Intake Manifold Runner Control Valve
    Component Inspection Component Inspection CHECK INTAKE MANIFOLD RUNNER CONTROL VALVE Turn ignition switch ON. Select “DATA MONITOR” mode with CONSULT. Make sure that “COOL...
    Low Pressure Fuel Pump
    Component Function Check Component Function Check CHECK LOW PRESSURE FUEL PUMP FUNCTION Turn ignition switch ON. Pinch fuel feed hose with two fingers. Fuel pressure pulsation s...

    Other materials:

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