Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: B2409-14 Half Latch Switch

Nissan Rogue (T33) 2021-Present Service Manual / Body Exterior, Doors, Roof & Vehicle Security :: Door & Lock / Dtc/circuit Diagnosis :: B2409-14 Half Latch Switch

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC Detection Condition
B2409-14

Half latch switch

(Half latch switch) 		Diagnosis condition When back door open
Signal (terminal) Half latch switch signal
Threshold

Automatic back door control unit detects when one of the following conditions is satisfied

  • Half latch switch circuit is ground short

  • Half latch switch is stuck ON
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Harness or connector (half latch switch circuit is ground short)

  • Automatic back door control unit

  • Back door lock assembly (half latch switch)

FAIL-SAFE

  • Inhibit automatic back door system [only operate back door closure function (open function)]

  • Manual latch and unlatch functions available only

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

CONSULT

  1. Ignition switch ON.

  2. Operate automatic back door.

  3. Select “Self diagnosis result” mode of “AUTOMATIC BACK DOOR”.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

CHECK HALF LATCH SWITCH INPUT SIGNAL

Check voltage between automatic back door control unit harness connector and ground.

(+) (–) Condition

Voltage

(Approx.)
Automatic back door control unit
Connector Terminal
B55 10 Ground Back door Open 0 – 1 V
Fully closed/ half latch Battery voltage

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK HALF LATCH SWITCH CIRCUIT

  1. Disconnect automatic back door control unit connector and back door lock assembly connector.

  2. Check continuity between automatic back door control unit harness connector and back door lock assembly harness connector.

    Automatic back door control unit Back door lock assembly Continuity
    Connector Terminal Connector Terminal
    B55 10 D512 6 Yes

  3. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B55 10 Ground No

Is the inspection result normal?

YES>>

Replace back door lock assembly. Refer to Removal and Installation.

NO>>

Repair or replace harness.

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