Nissan Murano: Door & Lock :: Dtc/circuit Diagnosis / Automatic Back Door Warning Buzzer

Nissan Murano (Z52) 2015-2024 Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Door & Lock :: Dtc/circuit Diagnosis / Automatic Back Door Warning Buzzer

Diagnosis Procedure

CHECK AUTOMATIC BACK DOOR WARNING BUZZER GROUND CIRCUIT

  1. Ignition switch OFF.

  2. Disconnect automatic back door warning buzzer connector.

  3. Check continuity between automatic back door warning buzzer harness connector and ground.

(+) (–) Continuity
Automatic back door warning buzzer
Connector Terminal
B93 2 Ground Yes

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace harness.

CHECK AUTOMATIC BACK DOOR WARNING BUZZER SIGNAL CIRCUIT

  1. Disconnect automatic back door control module connector.

  2. Check continuity between automatic back door control module harness connector and automatic back door warning buzzer harness connector.

    Automatic back door control module Automatic back door warning buzzer Continuity
    Connector Terminal Connector Terminal
    B55 37 B93 1 Yes

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

    Automatic back door control module Ground Continuity
    Connector Terminal
    B55 37 No

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK AUTOMATIC BACK DOOR WARNING BUZZER

Refer to Component Inspection.

Is the inspection result normal?

YES>>

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

NO>>

Replace automatic back door warning buzzer. Refer to Removal and Installation.

Component Inspection

CHECK AUTOMATIC BACK DOOR WARNING BUZZER

  1. Ignition switch OFF.

  2. Disconnect automatic back door warning buzzer connector.

  3. Connect battery power supply directly to automatic back door warning buzzer terminals and check the operation.

Automatic back door warning buzzer Operation
Terminal
(+) (-)
1 2 Chime sounds

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace automatic back door warning buzzer. Refer to Removal and Installation.

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