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.

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