Nissan Murano: Door & Lock :: Dtc/circuit Diagnosis / Unlock Sensor

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

Component Function Check

CHECK FUNCTION

CONSULT

  1. Select “UNLK SEN-DR” in “Data Monitor” mode of “BCM(INTELLIGENT KEY)”.

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

Monitor Item Condition Status
UNLK SEN -DR Driver side door Lock OFF
Unlock ON

Is the inspection result normal?

YES>>

Unlock sensor is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK UNLOCK SENSOR INPUT SIGNAL

  1. Ignition switch OFF.

  2. Disconnect front door lock assembly LH connector.

  3. Check signal between front door lock assembly LH harness connector and ground with oscilloscope.

    (+) (–)

    Signal

    (Reference value)
    Front door lock assembly LH
    Connector Terminal
    D14 3 Ground

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK UNLOCK SENSOR CIRCUIT

  1. Disconnect BCM connector.

  2. Check continuity between BCM harness connector and front door lock assembly LH harness connector.

    BCM Front door lock assembly LH Continuity
    Connector Terminal Connector Terminal
    M18 30 D14 3 Yes
  3. Check continuity between BCM harness connector and ground.

    BCM Ground Continuity
    Connector Terminal
    M18 30 No

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK UNLOCK SENSOR GROUND CIRCUIT

Check continuity between front door lock assembly LH harness connector and ground.

Front door lock assembly LH Ground Continuity
Connector Terminal
D14 4 Yes

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK UNLOCK SENSOR

Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace front door lock assembly LH. Refer to Removal and Installation.

CHECK INTERMITTENT INCIDENT

Refer to Intermittent Incident.

>>

Inspection End.

Component Inspection

CHECK UNLOCK SENSOR

  1. Ignition switch OFF.

  2. Disconnect front door lock assembly LH connector.

  3. Check continuity between front door lock assembly LH terminals.

Front door lock assembly LH Condition Continuity
Terminal
3 4 Driver side door Unlock Yes
Lock No

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace front door lock assembly LH. Refer to Removal and Installation.

    Door Lock Actuator. Front Lh

    Component Function Check CHECK FUNCTION CONSULT Select “DOOR LOCK” in “Active Test” mode of “BCM(DOOR LOCK)”. Select “ALL LOCK” or “ALL UNLK” to check that it works normally...

    Remote Keyless Entry Receiver

    Component Function Check CHECK FUNCTION CONSULT Select “RKE OPE COUN1” in “Data Monitor” mode of “BCM(INTELLIGENT KEY)”. Check that the function operates normally according to the following conditions: Monitor Item Condition RKE OPE COUN1 Checks whether value changes when operating Intelligent Key...

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    Nissan Murano (Z52) 2015-2024 Service Manual: Abbreviations


    Abbreviation List The following ABBREVIATIONS are used:A ABBREVIATION DESCRIPTION A/C Air conditioner Air conditioning A/F sensor Air fuel ratio sensor A/T Automatic transaxle/transmission ABS Anti-lock braking system ACCS Advance climate control system ACL Air cleaner AEB Automatic Emergency Braking AP Accelerator pedal APP Accelerator pedal position ATF Automatic transmission fluid ATR Active torque rod AV Audio visual AVM Around view monitor AWD All wheel drive B ABBREVIATION DESCRIPTION BARO Barometric pressure BCI Backup collision intervention BCM Body control module BLSD Brake limited slip differential BPP Brake pedal position BSI Blind spot intervention BSW Blind spot warning C ABBREVIATION DESCRIPTION CGW Can Gateway CKP Crankshaft position CL Closed loop CMP Camshaft position CPP Clutch pedal position CTP Closed throttle position CVT Continuously variable transaxle/transmission D ABBREVIATION DESCRIPTION D1 Drive range first gear D2 Drive range second gear D3 Drive range third gear D4 Drive range fourth gear DCA Distance control assist DDS Downhill drive support DFI Direct fuel injection system DLC Data link connector DTC Diagnostic trouble code E ABBREVIATION DESCRIPTION E/T Exhaust temperature EBD Electric brake force distribution EC Engine control ECD Electronic controlled deceleration ECL Engine coolant level ECM Engine control module ECT Engine coolant temperature ECV Electrical control valve EEPROM Electrically erasable programmable read only memory EFT Engine fuel temperature EGR Exhaust gas recirculation EGRT Exhaust gas recirculation temperature EGT Exhaust gas temperature ELD Electronic locking differential EOP Engine oil pressure EP Exhaust pressure EPR Exhaust pressure regulator EPS Electronically controlled power steering Electronic power steering ESP Electronic stability program system EVAP canister Evaporative emission canister EVSE Electric Nissan Murano vehicle supply equipment EXC Exhaust control F ABBREVIATION DESCRIPTION FC Fan control FCW Forward collision warning FEB Forward Emergency Braking FIC Fuel injector control FP Fuel pump FR Front FRP Fuel rail pressure FRT Fuel rail temperature FTP Fuel tank pressure FTT Fuel tank temperature G ABBREVIATION DESCRIPTION GND Ground GPS Global positioning system GST Generic scan tool H ABBREVIATION DESCRIPTION HBMC Hydraulic body-motion control system HDD Hard disk drive HO2S Heated oxygen sensor HOC Heated oxidation catalyst HPCM Hybrid powertrain control module I ABBREVIATION DESCRIPTION I/M Inspection and maintenance IA Intake air IAC Idle air control IAT Intake air temperature IBA Intelligent brake assist IC Ignition control ICC Intelligent cruise control ICM Ignition control module IPDM E/R Intelligent power distribution module engine room ISC Idle speed control ISS Input shaft speed ITS Information technology suite IVC In-Nissan Murano vehicle communications K ABBREVIATION DESCRIPTION KS Knock sensor L ABBREVIATION DESCRIPTION LBC Li-ion battery controller LCD Liquid crystal display LCU Local control unit LDP Lane departure prevention LDW Lane departure warning LED Light emitting diode LH Left-hand LHD Left-hand drive LIN Local interconnect network M ABBREVIATION DESCRIPTION M/T Manual transaxle/transmission MAF Mass airflow MAP Manifold absolute pressure MDU Multi display unit MI Malfunction indicator MIL Malfunction indicator lamp MOD Moving object detection N ABBREVIATION DESCRIPTION NOX Nitrogen oxides O ABBREVIATION DESCRIPTION O2 Oxygen O2S Oxygen sensor OBD On board diagnostic OC Oxidation catalytic converter OD Overdrive OL Open loop OSS Output shaft speed P ABBREVIATION DESCRIPTION P/S Power steering PBR Potentio balance resistor PCV Positive crankcase ventilation PFCW Predictive forward collision warning PNP Park/Neutral position PSP Power steering pressure PTC Positive temperature coefficient PTO Power takeoff PWM Pulse width modulation R ABBREVIATION DESCRIPTION RAM Random access memory RAS Rear active steer RH Right-hand RHD Right-hand drive ROM Read only memory RPM Engine speed RR Rear S ABBREVIATION DESCRIPTION SAE Society of Automotive Engineers, Inc...

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