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Nissan Sentra B18 (2020-2025) Service Manual: Clutch Master Cylinder (clutch Switch)

Component Function Check

Component Function Check

  1. CHECK FUNCTION

    1. CONSULT

      1. Ignition switch ON.

      2. Select “INTELLIGENT KEY” mode of “BCM”.

      3. Select “Clutch end SW”, “Clutch start SW” in “Data Monitor” mode.

      4. Check that the function operates normally according to the following conditions.

      Monitor item

      Condition

      Status

      Clutch end SW

      Clutch pedal

      RELEASED

      Off

      DEPRESSED

      On

      Clutch start SW

      RELEASED

      Off

      DEPRESSED

      On

    Is the inspection result normal?

    YES >>

    Clutch master cylinder (clutch switch) is OK.

    NO >>

    Refer to: Diagnosis Procedure.

Diagnosis Procedure

Diagnosis Procedure

  1. CHECK CLUTCH MASTER CYLINDER (CLUTCH SWITCH) POWER SUPPLY

      1. Disconnect clutch master cylinder (clutch switch) connector.

      2. Ignition switch ON.

      3. Check voltage between clutch master cylinder (clutch switch) harness connector and ground.

        (+)

        (–)

        Voltage

        (Approx.)

        Clutch master cylinder (clutch switch)

        Connector

        Terminal

        E32

        8

        Ground

        Battery voltage

    Is the inspection result normal?

    YES >>

    GO TO 2.

    NO >>

    Repair or replace harness.

  2. CHECK CLUTCH MASTER CYLINDER (CLUTCH SWITCH) GROUND CIRCUIT

    1. Check continuity between clutch master cylinder (clutch switch) harness connector and ground.

      Clutch master cylinder (clutch switch)

      —

      Continuity

      Connector

      Terminal

      E32

      7

      Ground

      Yes

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    Repair or replace harness.

  3. CHECK CLUTCH MASTER CYLINDER (CLUTCH SWITCH) START CIRCUIT

      1. Ignition switch OFF.

      2. Disconnect BCM connector.

      3. Check continuity between clutch master cylinder (clutch switch) harness connector and BCM harness connector.

        Clutch master cylinder (clutch switch)

        BCM

        Continuity

        Connector

        Terminal

        Connector

        Terminal

        E32

        5

        M142

        113

        Yes

    Is the inspection result normal?

    YES >>

    GO TO 4.

    NO >>

    Repair or replace harness.

  4. CHECK CLUTCH MASTER CYLINDER (CLUTCH SWITCH) END CIRCUIT

      1. Ignition switch OFF.

      2. Disconnect BCM connector.

      3. Check continuity between clutch master cylinder (clutch switch) harness connector and BCM harness connector.

        Clutch master cylinder (clutch switch)

        BCM

        Continuity

        Connector

        Terminal

        Connector

        Terminal

        E32

        6

        M142

        112

        Yes

    Is the inspection result normal?

    YES >>

    GO TO 5.

    NO >>

    Replace clutch master cylinder (clutch switch). Refer to Removal and Installation.

  5. CHECK INTERMITTENT INCIDENT

    1. Refer to Intermittent Incident.

    YES >>

    Inspection End.

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