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Nissan Sentra B18 (2020-2025) Service Manual: Trunk Opener Request Switch

Component Function Check

Component Function Check

  1. CHECK FUNCTION

    1. CONSULT

      1. Select "Request switch BD/TR" in "Data Monitor" mode of "BCM(TRUNK)".

      2. Select that the function operates normally according to the following conditions:

      Monitor item

      Condition

      Status

      Request switch BD/TR

      Trunk lid opener request switch

      Pressed

      On

      Released

      Off

    Is the inspection result normal?

    YES >>

    Trunk lid opener request switch is OK.

    NO >>

    Refer to Diagnosis Procedure.

Diagnosis Procedure

Diagnosis Procedure

  1. CHECK TRUNK LID OPENER REQUEST SWITCH OUTPUT SIGNAL

      1. Ignition switch OFF.

      2. Check voltage between trunk lid opener request switch harness connector and ground.

        (+)

        (–)

        Voltage

        (Approx.)

        Trunk lid opener request switch

        Connector

        Terminal

        B14

        1

        Ground

        Battery voltage

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    GO TO 2.

  2. CHECK TRUNK LID OPENER REQUEST SWITCH CIRCUIT

      1. Disconnect BCM connector and trunk lid opener request switch connector.

      2. Check continuity between BCM harness connector and trunk lid opener request switch harness connector.

        BCM

        Trunk lid opener request switch

        Continuity

        Connector

        Terminal

        Connector

        Terminal

        M85

        98

        B14

        1

        Yes

      3. Check continuity between BCM harness connector and ground.

        BCM

        —

        Continuity

        Connector

        Terminal

        M85

        98

        Ground

        No

    Is the inspection result normal?

    YES>>

    Replace BCM. Refer to Removal and Installation.

    NO>>

    Repair or replace harness.

  3. CHECK TRUNK LID OPENER REQUEST SWITCH GROUND CIRCUIT

      1. Disconnect trunk lid opener request switch connector.

      2. Check continuity between trunk lid opener request switch harness connector and ground.

        Trunk lid opener request switch

        —

        Continuity

        Connector

        Terminal

        B14

        4

        Ground

        Yes

    Is the inspection result normal?

    YES >>

    GO TO 4.

    NO >>

    Repair or replace harness.

  4. CHECK TRUNK LID OPENER REQUEST SWITCH

    1. Refer to Component Inspection.

    Is the inspection result normal?

    YES >>

    GO TO 5.

    NO >>

    Replace trunk lid opener request switch. Refer to Removal and Installation.

  5. CHECK INTERMITTENT INCIDENT

    1. Refer to Intermittent Incident.

    >>

    Inspection End.

Component Inspection

Component Inspection

  1. CHECK TRUNK LID OPENER REQUEST SWITCH

      1. Ignition switch OFF.

      2. Disconnect trunk lid opener request switch connector.

      3. Check continuity between trunk lid opener request switch terminals.

      Trunk lid opener request switch

      Condition

      Continuity

      Terminals

      1

      4

      Trunk lid opener request switch

      Pressed

      Yes

      Released

      No

    Is the inspection result normal?

    YES>>

    Inspection End.

    NO>>

    Replace trunk lid opener request switch. Refer to Removal and Installation.

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