Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: B2040-14 Outside Antenna

Nissan Rogue (T33) 2021-Present Service Manual / Body Exterior, Doors, Roof & Vehicle Security :: Door & Lock / Dtc/circuit Diagnosis :: B2040-14 Outside Antenna

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC detecting condition
B2040-14

Outside antenna

(Outside antenna) 		Diagnosis condition Work supports “Inside/outside antenna diagnosis”: activated
Signal (terminal) Outside key antenna (rear bumper) signal (Intelligent Key unit connector terminal: 37, 38)
Threshold Outside key antenna (rear bumper) circuit is shorted to ground
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Intelligent Key unit

  • Outside key antenna (rear bumper)

  • Harness or connector [outside key antenna (rear bumper) circuit is open or shorted]

FAIL-SAFE

–

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

CONSULT

  1. Select “Inside/outside antenna diagnosis” in “Work supports” mode of “INTELLIGENT KEY”.

  2. Select “Self diagnosis result” mode of “INTELLIGENT KEY”.

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 OUTSIDE KEY ANTENNA INPUT SIGNAL 1

  1. Ignition switch ON.

  2. Check signal between Intelligent Key unit harness connector and ground using oscilloscope.

    (+) (–) Condition

    Signal

    (Reference value)
    Intelligent Key unit
    Connector Terminal
    M184 37 Ground When the back door request switch is operated with ignition switch ON When Intelligent Key is in the antenna detection area

    When Intelligent Key is not in the antenna detection area

    38 When Intelligent Key is in the antenna detection area

    When Intelligent Key is not in the antenna detection area

Is the inspection result normal?

YES>>

Replace Intelligent Key unit. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK OUTSIDE KEY ANTENNA CIRCUIT

  1. Ignition switch OFF.

  2. Disconnect Intelligent Key unit connector and outside key antenna (rear bumper) connector.

  3. Check continuity between Intelligent Key unit harness connector and outside key antenna (rear bumper) harness connector.

    Intelligent Key unit Outside key antenna (rear bumper) Continuity
    Connector Terminal Connector Terminal
    M184 37 B76 2 Yes
    38 1

  4. Check continuity between Intelligent Key unit harness connector and ground.

    Intelligent Key unit — Continuity
    Connector Terminal
    M184 37 Ground No
    38

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2

  1. Replace outside key antenna (rear bumper). (New antenna or other antenna)

  2. Connect Intelligent Key unit and outside key antenna (rear bumper) connector.

  3. Ignition switch ON.

  4. Check signal between Intelligent Key unit harness connector and ground using oscilloscope.

    (+) (–) Condition

    Signal

    (Reference value)
    Intelligent Key unit
    Connector Terminal
    M184 37 Ground When the back door request switch is operated with ignition switch ON When Intelligent Key is in the antenna detection area

    When Intelligent Key is not in the antenna detection area

    38 When Intelligent Key is in the antenna detection area

    When Intelligent Key is not in the antenna detection area

Is the inspection result normal?

YES>>

Replace outside key antenna (rear bumper). Refer to Removal and Installation.

NO>>

Replace Intelligent Key unit. Refer to Removal and Installation.

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