Nissan Murano: Door & Lock :: Dtc/circuit Diagnosis / B2626 Outside Antenna

Nissan Murano (Z52) 2015-2024 Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Door & Lock :: Dtc/circuit Diagnosis / B2626 Outside Antenna

DTC Description

NOTE:

The Signal Tech II Tool [- (J-50190)] can be used to perform the following functions: Refer to the Signal Tech II User Guide for additional information.

  • Check Intelligent Key relative signal strength.

  • Confirm Nissan Murano vehicle Intelligent Key antenna signal strength.

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC Detection Condition
B2626

OUTSIDE ANTENNA

(Outside antenna) 		Diagnosis condition When ignition switch is ON.
Signal (terminal) —
Threshold An excessive high or low voltage from outside key antenna RH is sent to BCM
Diagnosis delay time —

POSSIBLE CAUSE

  • BCM

  • Outside key antenna (RH)

  • Harness or connector [Outside key antenna (RH) circuit is open or shorted.]

FAIL-SAFE

–

DTC Confirmation Procedure

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON.

  2. Select “Self Diagnostic Result” mode of “BCM”.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

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

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

NOTE:

The Signal Tech II Tool [- (J-50190)] can be used to perform the following functions: Refer to the Signal Tech II User Guide for additional information.

  • Check Intelligent Key relative signal strength.

  • Confirm Nissan Murano vehicle Intelligent Key antenna signal strength.

CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1

  1. Ignition switch OFF.

  2. Check signal between BCM harness connector and ground using oscilloscope.

    (+) (–) Condition

    Signal

    (Reference value)
    BCM
    Connector Terminal
    M80 114 Ground When the passenger door request switch is operated with ignition switch OFF. When Intelligent Key is in the antenna detection area. (The distance between Intelligent Key and antenna: 80 cm or less.)

    When Intelligent Key is not in the antenna detection area. (The distance between Intelligent Key and antenna: Approx. 2 m.)

    115 Ground When the passenger door request switch is operated with ignition switch OFF. When Intelligent Key is in the antenna detection area. (The distance between Intelligent Key and antenna: 80 cm or less.)

    When Intelligent Key is not in the antenna detection area. (The distance between Intelligent Key and antenna: Approx. 2 m.)

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK OUTSIDE KEY ANTENNA CIRCUIT

  1. Disconnect BCM connector and outside key antenna (RH) connector.

  2. Check continuity between BCM harness connector and outside key antenna (RH) harness connector.

    BCM Outside key antenna (RH) Continuity
    Connector Terminal Connector Terminal
    M80 114 D115 1 Yes
    115 2

  3. Check continuity between BCM harness connector and ground.

    BCM Ground Continuity
    Connector Terminal
    M80 114 No
    115

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 (RH). (New antenna or other antenna)

  2. Connect BCM connector and outside key antenna (RH) connector.

  3. Check signal between BCM harness connector and ground using oscilloscope.

    (+) (–) Condition

    Signal

    (Reference value)
    BCM
    Connector Terminal
    M80 114 Ground When the passenger door request switch is operated with ignition switch OFF. When Intelligent Key is in the antenna detection area. (The distance between Intelligent Key and antenna: 80 cm or less.)

    When Intelligent Key is not in the antenna detection area. (The distance between Intelligent Key and antenna: Approx. 2 m.)

    115 Ground When the passenger door request switch is operated with ignition switch OFF. When Intelligent Key is in the antenna detection area. (The distance between Intelligent Key and antenna: 80 cm or less.)

    When Intelligent Key is not in the antenna detection area. (The distance between Intelligent Key and antenna: Approx. 2 m.)

Is the inspection result normal?

YES>>

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

NO>>

Replace BCM. Refer to Removal and Installation.

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