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Nissan Sentra B18 (2020-2025) Service Manual: Drive Sport Mode Switch

Component Function Check

Component Function Check

  1. CHECK DRIVE SPORT MODE FUNCTION-1

    1. Ignition switch ON.

    2. Shift the selector lever to “D” position.

    3. Check the drive sport mode indicator turns ON/OFF when drive sport mode switch is operated.

    Is the inspection results normal?

    YES >>

    INSPECTION END

    NO >>

    GO TO 2.

  2. CHECK DRIVE SPORT MODE FUNCTION-2

    1. Start the engine.

    2. Drive the Nissan Sentra vehicle.

    3. Maintain the following conditions.

      Selector lever

      : “D” POSITION

      Nissan Sentra Vehicle speed

      : Constant vehicle speed of 30 km/h (19 MPH) or more on the flat road.

    4. Check the engine speed when drive sport mode switch is operated.

    Is the engine speed changed?

    YES >>

    Check drive sport mode indicator. Refer to Diagnosis Procedure.

    NO >>

    Check drive sport mode switch. Refer to Diagnosis Procedure.

Diagnosis Procedure

Diagnosis Procedure

  1. CHECK DRIVE SPORT MODE SWITCH CIRCUIT

    1. Ignition switch OFF.

    2. Disconnect CVT shift selector harness connector.

    3. Ignition switch ON.

    4. Check voltage between CVT shift selector harness connector terminals.

      CVT shift selector

      Voltage

      (Approx.)

      Connector

      +

      Terminal

      M38

      1

      2

      12 V

    Is the inspection result normal?

    YES >>

    GO TO 2.

    NO >>

    GO TO 4.

  2. CHECK DRIVE SPORT MODE CONTROL SWITCH

    Check drive sport mode switch. Refer to Component Inspection.

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    Repair or replace damaged parts.

  3. CHECK GROUND CIRCUIT

    Check continuity between CVT shift selector harness connector terminal and ground.

    CVT shift selector

    Continuity

    Connector

    Terminal

    M38

    2

    Ground

    Existed

    Is the inspection result normal?

    YES >>

    GO TO 4.

    NO >>

    Repair or replace damaged parts.

  4. CHECK CIRCUIT BETWEEN BCM (BODY CONTROL MODURE) AND CVT SHIFT SELECTOR (PART 1)

    1. Ignition switch OFF.

    2. Disconnect BCM (Body control modure) harness connector.

    3. Check continuity between BCM (Body control modure) harness connector terminal and CVT shift selector harness connector terminal.

      BCM (Body control modure)

      CVT shift selector

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M83

      57

      M38

      1

      Existed

    Is the inspection result normal?

    YES >>

    GO TO 5.

    NO >>

    Repair or replace damaged parts.

  5. CHECK CIRCUIT BETWEEN BCM (BODY CONTROL MODURE) AND GROUND

    Check continuity between BCM (Body control modure) harness connector terminal and ground.

    BCM (Body control modure)

    Continuity

    Connector

    Terminal

    M83

    57

    Ground

    Not existed

    Is the inspection result normal?

    YES >>

    GO TO 6.

    NO >>

    Repair or replace damaged parts.

  6. CHECK BCM (BODY CONTROL MODURE) INPUT SIGNAL

    1. Connect all of disconnected harness connectors.

    2. Ignition switch ON.

    3. Select “Data Monitor” in “BCM”.

    4. Select “Sport mode switch”.

    5. Check that “Sport mode switch” turns ON/OFF when drive sport mode switch is operated. Refer to Values on the Diagnosis Tool.

    Is the inspection result normal?

    YES >>

    Check intermittent incident. Refer to Intermittent Incident.

    NO >>

    Replace BCM. Refer to Removal and Installation.

Component Inspection

Component Inspection

  1. CHECK DRIVE SPORT MODE SWITCH

    Check continuity between wires of selector lever knob .

    Condition

    Continuity

    Drive sport mode switch is depressed

    Existed

    Drive sport mode switch is depressed

    Not existed

    Is the inspection result normal?

    YES >>

    INSPECTION END

    NO >>

    Replace selector lever knob. Refer to Removal and Installation.

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