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Nissan Sentra B18 (2020-2025) Service Manual: Trunk Lid Opener Actuator

Component Function Check

Component Function Check

  1. CHECK FUNCTION

    1. CONSULT

      1. Select "Trunk/back door" in "Active Test" mode of "BCM(TRUNK)".

      2. Select “On” to check that it works normally.

    Is the inspection result normal?

    YES>>

    Trunk lid opener actuator is OK.

    NO>>

    Refer to Diagnosis Procedure.

Diagnosis Procedure

Diagnosis Procedure

  1. CHECK TRUNK LID OPENER INPUT SIGNAL

      1. Ignition switch OFF.

      2. Disconnect trunk lid opener assembly (ajar switch) connector.

      3. Check voltage between trunk lid opener assembly (ajar switch) harness connector and ground.

      (+)

      (–)

      Condition

      Voltage

      (Approx.)

      Trunk lid opener assembly (ajar switch)

      Connector

      Terminal

      B59

      3

      Ground

      Trunk lid opener switch is pressed

      Battery voltage

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    GO TO 2.

  2. CHECK TRUNK LID OPENER ACTUATOR CIRCUIT

      1. Disconnect BCM connector.

      2. Check continuity between BCM harness connector and trunk lid opener assembly (ajar switch) harness connector.

        BCM

        Trunk lid opener assembly (ajar switch)

        Continuity

        Connector

        Terminal

        Connector

        Terminal

        M21

        145

        B59

        3

        Yes

      3. Check continuity between BCM harness connector and ground.

        BCM

        —

        Continuity

        Connector

        Terminal

        M21

        145

        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 ACTUATOR GROUND CIRCUIT

    1. Check continuity between trunk lid opener assembly (ajar switch) harness connector and ground.

      Trunk lid opener assembly (ajar switch)

      —

      Continuity

      Connector

      Terminal

      B59

      2

      Ground

      Yes

    Is the inspection normal?

    YES>>

    Replace trunk lid opener assembly (ajar switch). Refer to Removal and Installation.

    NO>>

    Repair or replace harness.

    Trunk Lamp Switch
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