Nissan Murano: Door & Lock :: Dtc/circuit Diagnosis / Door Switch

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

Component Function Check

CHECK FUNCTION

CONSULT

  1. Select “DOOR SW-DR”, “DOOR SW-AS”, “DOOR SW-RL” or “DOOR SW-RR” in “Data Monitor” mode of “BCM(DOOR LOCK)”.

  2. Check that the function operates normally according to the following conditions:

Monitor Item Condition Status
DOOR SW-DR Front door LH Open On
Closed Off
DOOR SW-AS Front door RH Open On
Closed Off
DOOR SW-RL Rear door LH Open On
Closed Off
DOOR SW-RR Rear door RH Open On
Closed Off

Is the inspection result normal?

YES>>

Door switch is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK DOOR SWITCH INPUT SIGNAL

  1. Ignition switch OFF.

  2. Disconnect door switch connector.

  3. Check signal between door switch harness connector and ground using oscilloscope.

    (+) (–)

    Signal

    (Reference value)
    Door switch
    Connector Terminal
    Front LH B8 3 Ground

    7.0 - 8.0 V
    Front RH B108
    Rear LH B18
    Rear RH B116

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK DOOR SWITCH CIRCUIT

  1. Disconnect BCM connector.

  2. Check continuity between door switch harness connector and BCM harness connector.

    Door switch BCM Continuity
    Connector Terminal Connector Terminal
    Front LH B8 3 M20 96 Yes
    Front RH B108 94
    Rear LH B18 82
    Rear RH B116 93

  3. Check continuity between door switch harness connector and ground.

    Door switch Ground Continuity
    Connector Terminal
    Front LH B8 3 No
    Front RH B108
    Rear LH B18
    Rear RH B116

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK DOOR SWITCH

Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace malfunctioning door switch. Refer to Removal and Installation.

CHECK INTERMITTENT INCIDENT

Refer to Intermittent Incident.

>>

Inspection End.

Component Inspection

CHECK DOOR SWITCH

  1. Ignition switch OFF.

  2. Disconnect door switch connector.

  3. Check continuity between door switch terminals.

    Door switch Condition Continuity
    Terminal
    3 Ground contact is part of the switch. Door switch Pressed No
    Released Yes

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace malfunctioning door switch. Refer to Removal and Installation.

    Power Supply and Ground Circuit. Automatic Back Door Control Module

    Diagnosis Procedure CHECK FUSIBLE LINK Check that the following fusible link is not open: Terminal Signal name Fusible link No. Capacity 25 Battery power supply M 40 A Is the fusible link open? YES>> Replace the open fusible link after repairing the affected circuit...

    Back Door Switch

    Component Function Check CHECK FUNCTION CONSULT Select “DOOR SW-BK” in “Data Monitor” mode of “BCM(DOOR LOCK)”. Check that the function operates normally according to the following conditions: Monitor Item Condition Status DOOR SW-BK Back door Open On Closed Off Is the inspection result normal? YES>> Door switch is OK...

    Other information:

    Nissan Murano (Z52) 2015-2024 Service Manual: Diagnosis and Repair Work Flow


    Work Flow DETAILED FLOWINTERVIEW THE CUSTOMER Clarify customer concerns before inspection. First of all, perform an interview utilizing Diagnostic Work Sheet and reproduce the symptom as well as fully understand it. Ask customer about his/her concerns carefully...

    Nissan Murano (Z52) 2015-2024 Service Manual: U0300 Can Communication Data


    DTC Description DTC DETECTION LOGICWhen the ignition switch is ON, the data length transmitted from each control unit is shorter than the specified length and the status continues for 2 seconds or more. DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition U0300 CAN COMM DATA (Internal Control Module Software Incompatibility) Diagnosis condition When the ignition switch is ON Signal CAN communication data Threshold The data length transmitted from each control unit is shorter than the specified length and the status Diagnosis delay time Continues for 2 seconds or more POSSIBLE CAUSEControl unit other than TCMFAIL-SAFE Selector shock is large Start is slow Acceleration is slow Lock-up is not performed DTC Confirmation Procedure PREPARATION BEFORE WORK If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test...

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