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

Nissan Murano (Z52) 2015-2024 Service Manual / Driver Information & Multimedia / Audio, Visual & Navigation System :: Rear View Monitor System / Dtc/circuit Diagnosis / Power Supply and Ground Circuit. Audio Unit

Diagnosis Procedure

CHECK FUSE

Check that the following fuses are not blown:

Terminal No. Signal name Fuse No. Capacity
7 ACC power supply 7 10 A
17 Ignition power supply 29 10 A
19 Battery power supply 15 20 A

Are the fuses blown?

YES>>

Replace the blown fuse after repairing the affected circuit.

NO>>

GO TO 2.

CHECK POWER SUPPLY CIRCUIT

  1. Ignition switch OFF.

  2. Disconnect audio unit connector.

  3. Check voltage between audio unit connector and ground.

    Audio unit Ground Condition

    Voltage

    (Approx.)
    Connector Terminal
    M121 7 Ignition switch: ON Battery voltage
    17
    19 Ignition switch: OFF

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connectors.

CHECK GROUND CIRCUIT

  1. Ignition switch OFF.

  2. Check continuity between audio unit connector and ground.

    Audio unit Ground Continuity
    Connector Terminal
    M121 20 Yes

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair or replace harness or connectors.

    Dtc/circuit Diagnosis

    ..

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