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

Nissan Murano (Z52) 2015-2024 Service Manual / Transmission & Driveline / Driveline :: Transfer: Ty21c / Dtc/circuit Diagnosis / Power Supply and Ground Circuit

Diagnosis Procedure

CHECK AWD CONTROL UNIT POWER SUPPLY (1)

  1. Ignition switch OFF.

  2. Disconnect AWD control unit harness connector.

  3. Check the voltage between AWD control unit harness connector and ground.

    (+) (–)

    Voltage

    (Approx.)
    AWD control unit
    Connector Terminal
    B135 7 Ground 0 V

  4. Ignition switch ON.

    CAUTION:

    Never start the engine.

  5. Check the voltage between AWD control unit harness connector and ground.

    (+) (–)

    Voltage

    (Approx.)
    AWD control unit
    Connector Terminal
    B135 7 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK AWD CONTROL UNIT POWER SUPPLY (2)

  1. Ignition switch OFF.

  2. Check the 10A fuse (#46).

  3. Disconnect IPDM E/R harness connector.

  4. Check the continuity between AWD control unit harness connector and IPDM E/R harness connector.

    AWD control unit IPDM E/R Continuity
    Connector Terminal Connector Terminal
    B135 7 E119 19 Yes

  5. Check the continuity between AWD control unit harness connector and the ground.

    AWD control unit — Continuity
    Connector Terminal
    B135 7 Ground No

Is the inspection result normal?

YES>>

Perform the trouble diagnosis for ignition power supply circuit. Refer to Wiring Diagram.

NO>>

Repair or replace error-detected parts.

CHECK AWD CONTROL UNIT POWER SUPPLY (3)

  1. Ignition switch OFF.

  2. Check the voltage between AWD control unit harness connector and ground.

    (+) (–)

    Voltage

    (Approx.)
    AWD control unit
    Connector Terminal
    B135 15 Ground Battery voltage

  3. Ignition switch ON.

    CAUTION:

    Never start the engine.

  4. Check the voltage between AWD control unit harness connector and ground.

    (+) (–)

    Voltage

    (Approx.)
    AWD control unit
    Connector Terminal
    B135 15 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

CHECK AWD CONTROL UNIT POWER SUPPLY (4)

  1. Ignition switch OFF.

  2. Check the 10A fuse (#25).

  3. Disconnect fuse block (J/B) harness connector.

  4. Check the continuity between AWD control unit harness connector and fuse block (J/B) harness connector.

    AWD control unit Fuse block (J/B) Continuity
    Connector Terminal Connector Terminal
    B135 15 M3 2N Yes

  5. Check the continuity between AWD control unit harness connector and the ground.

    AWD control unit — Continuity
    Connector Terminal
    B135 15 Ground No

Is the inspection result normal?

YES>>

Perform the trouble diagnosis for battery power supply circuit. Refer to Wiring Diagram.

NO>>

Repair or replace error-detected parts.

CHECK AWD SOLENOID POWER SUPPLY (1)

  1. Ignition switch OFF.

  2. Disconnect AWD solenoid harness connector.

  3. Check the voltage between AWD control unit harness connector and ground.

    (+) (–)

    Voltage

    (Approx.)
    AWD control unit
    Connector Terminal
    B135 9 Ground Battery voltage

  4. Ignition switch ON.

    CAUTION:

    Never start the engine.

  5. Check the voltage between AWD control unit harness connector and ground.

    (+) (–)

    Voltage

    (Approx.)
    AWD control unit
    Connector Terminal
    B135 9 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

GO TO 6.

CHECK AWD SOLENOID POWER SUPPLY (2)

  1. Ignition switch OFF.

  2. Check the 10A fuse (#62)

  3. Check the harness for open or short between AWD control unit harness connector B135 terminal No. 9 and 10A fuse (#62).

Is the inspection result normal?

YES>>

Perform the trouble diagnosis for battery power supply circuit. Refer to Wiring Diagram.

NO>>

Repair or replace error-detected parts.

CHECK AWD CONTROL UNIT GROUND

  1. Ignition switch OFF.

  2. Check the continuity between AWD control unit harness connector and ground.

    AWD control unit — Continuity
    Connector Terminal
    B135 10 Ground Yes
    11

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair or replace error-detected parts.

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