Nissan Murano: Dtc/circuit Diagnosis / Power Supply and Ground Circuit

Nissan Murano (Z52) 2015-2024 Service Manual / Electrical & Power Control / Body Control System :: Bcm / Dtc/circuit Diagnosis / Power Supply and Ground Circuit

Diagnosis Procedure

CHECK FUSE AND FUSIBLE LINK

Check that the following fuse and fusible link are not blown:

Terminal Signal name Fuse or fusible link No. Capacity
25 Battery power supply (brake switch) 10 10A
26 Battery power supply (shorting input) 16 5A
81 Battery power supply (rear wiper) 5 15A
131 Battery power supply 1 10A
138 Battery power supply (rear door) 4 15A
139 Battery power supply L 40A
142 Battery power supply (front door) 3 15A

Is the fuse or fusible link blown?

YES>>

Replace the blown fuse or fusible link after repairing the affected circuit.

NO>>

GO TO 2.

CHECK POWER SUPPLY CIRCUIT

  1. Disconnect BCM connectors.

  2. Check voltage between BCM harness connectors and ground.

    (+) (–)

    Voltage

    (Approx.)
    BCM
    Connector Terminal
    M18 25 Ground Battery voltage
    26
    M20 81
    M81 131
    138
    139
    142

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connectors.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

BCM Ground Continuity
Connector Terminal
M81 134 Yes
143

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair or replace harness or connectors.

    B259a Room Lamp Fuse Blown

    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition B259A ROOM LAMP FUSE BLOWN (Room lamp fuse blown) Diagnosis condition When ignition switch ON...

    Combination Switch Input Circuit

    Diagnosis Procedure CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN Ignition switch OFF. Disconnect BCM connector and combination switch connector. Check continuity between BCM harness connector and combination switch harness connector...

    Other information:

    Nissan Murano (Z52) 2015-2024 Service Manual: C1a13-23 Stop Lamp Rly Fix


    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC detection condition C1A13-23 STOP LAMP RLY FIX (Stop lamp relay fix) Diagnosis condition When engine is running Signal (terminal) — Threshold Stop lamp inactive state continues despite the outputting of an ADAS control unit stop lamp request signal Diagnosis delay time 1 second or more POSSIBLE CAUSE Stop lamp switch circuit Stop lamp switch Incorrect stop lamp switch installation ICC brake hold relay ICC brake hold relay circuit ADAS control unit ECM FAIL-SAFEThe following systems are canceled: Vehicle-to-vehicle distance control mode Conventional (fixed speed) cruise control mode Automatic Emergency Braking (AEB) with pedestrian detection Automatic Emergency Braking (AEB) Intelligent Forward Collision Warning (I-FCW) Rear Automatic Braking (RAB) Confirmation Procedure CHECK DTC PRIORITY If DTC “C1A13–23” is displayed with DTC “U1000–01”, first diagnose the DTC “U1000–01”...

    Nissan Murano (Z52) 2015-2024 Service Manual: U0073 Communication Bus a Off


    DTC Description DTC DETECTION LOGICTCM communication blockage lasts for 2 seconds or more when turning ON the ignition switch. (Communication not established.) DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition U0073 COMM BUS A OFF (Control Module Communication Bus A Off) Diagnosis condition When turning ON the ignition switch Signal CAN communication Threshold TCM communication blockage (Communication not established) Diagnosis delay time Last for 2 seconds or more POSSIBLE CAUSEHarness or connector (CAN communication line is error)FAIL-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...

    Categories

    Fuel gauge

    Nissan Murano. Fuel gauge

    The gauge indicates the approximate fuel level in the tank.

    The gauge may move slightly during braking, turning, acceleration, or going up or down hills.

    The gauge needle returns to 0 (Empty) after the ignition switch is placed in the OFF position.

    read more

     
    Copyright © 2026 www.nimurano.com