Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: B2420-14 Close Switch

Nissan Rogue (T33) 2021-Present Service Manual / Body Exterior, Doors, Roof & Vehicle Security :: Door & Lock / Dtc/circuit Diagnosis :: B2420-14 Close Switch

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC Detection Condition
B2420-14

Close switch

(Close switch) 		Diagnosis condition When automatic back door open/close function operate
Signal (terminal) Close switch signal
Threshold

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

  • Close switch circuit is ground short

  • Close switch is stuck ON
Diagnosis delay time 4 consecutive times

POSSIBLE CAUSE

  • Harness or connector (close switch circuit is ground short)

  • Automatic back door control unit

  • Back door lock assembly (close switch)

FAIL-SAFE

Inhibit automatic back door system all function

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

CONSULT

  1. Ignition switch ON.

  2. Operate automatic back door 4 times.

  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 CLOSE 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 9 Ground Back door closure motor Open operation 0 – 1 V
Other than above Battery voltage

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

GO TO 5.

CHECK CONNECTOR

  1. Ignition switch OFF.

  2. Check the automatic back door control unit harness connector for disconnection or looseness.

  3. Check the touch sensor RH harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair/replace harness or connector, securely lock the connector, and GO TO 5.

CHECK AUTOMATIC BACK DOOR CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

Check the automatic back door control unit power supply and ground circuits. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair/replace harness, connector, fuse, or fusible link, and GO TO 5.

CHECK TERMINAL

  1. Ignition switch OFF.

  2. Disconnect automatic back door control unit harness connector and then check the automatic back door control unit pin terminals for damage or loose connection with harness connector.

  3. Disconnect touch sensor RH harness connector and check touch sensor RH pin terminal for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

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

NO>>

Repair/replace harness, connector, or terminal.

CHECK CLOSE 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 9 D512 5 Yes

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

    Automatic back door control unit — Continuity
    Connector Terminal
    B55 9 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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