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Nissan Sentra B18 (2020-2025) Service Manual: Diagnosis Procedure

Nissan Sentra B18 (2020-2025) Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Door & Lock :: Dtc/circuit Diagnosis / Trunk Lamp Switch / Diagnosis Procedure

Diagnosis Procedure

  1. CHECK TRUNK ROOM LAMP SWITCH INPUT SIGNAL

      1. Ignition switch OFF.

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

        (+)

        (–)

        Voltage

        (Approx.)

        Trunk lid opener assembly (ajar switch)

        Connector

        Terminal

        B59

        1

        Ground

        Battery voltage

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    GO TO 2.

  2. CHECK TRUNK ROOM LAMP SWITCH CIRCUIT

      1. Disconnect BCM connector and trunk lid opener assembly (ajar switch) 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

        M85

        96

        B59

        1

        Yes

      3. Check continuity between BCM harness connector and ground.

        BCM

        —

        Continuity

        Connector

        Terminal

        M85

        96

        Ground

        No

    Is the inspection result normal?

    YES >>

    Replace BCM. Refer to Removal and Installation.

    NO >>

    Repair or replace harness.

  3. CHECK TRUNK ROOM LAMP SWITCH GROUND CIRCUIT

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

      2. 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 result normal?

    YES >>

    GO TO 4.

    NO >>

    Repair or replace harness.

  4. CHECK TRUNK ROOM LAMP SWITCH

    1. Refer to Component Inspection.

    Is the inspection result normal?

    YES >>

    GO TO 5.

    NO >>

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

  5. CHECK INTERMITTENT INCIDENT

    1. Refer to Intermittent Incident.

    >>

    Inspection End.

Component Function Check
Component Function Check CHECK FUNCTION CONSULT Select "Back door/trunk lid switch" in "Data Monitor" mode ...

Component Inspection
Component Inspection CHECK TRUNK ROOM LAMP SWITCH Ignition switch OFF. Disconnect trunk lid ...

Other materials:

Charging System
Component Parts Location Component Parts Location No. Component Function 1. Generator (IC ...

System description
Component parts Component part location ECM IPDM E/R BCM (view with instrument panel removed) A/C auto amp. (view with A/C switch assembly removed) A/C switch assembly A/C Compressor Refrigerant pressure sensor (view with front bumper fascia removed) Ambient sensor S ...

U2140-87 Can Comm Circuit
Dtc Description DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detected condition ...

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