Nissan Murano: Power Supply and Ground Circuit / A/c Auto Amp.

Nissan Murano (Z52) 2015-2024 Service Manual / Ventilation, Heater & Air Conditioner / Heater & Air Conditioning Control System :: Dtc/circuit Diagnosis / Power Supply and Ground Circuit / A/c Auto Amp.

Diagnosis Procedure

CHECK FUSE

Check fuses [No. 14 and 29, located in the fuse block (J/B)].

NOTE:

Refer to Terminal Arrangement.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace the blown fuse after repairing the affected circuit.

CHECK A/C AUTO AMP. POWER SUPPLY

  1. Ignition switch OFF.

  2. Disconnect A/C auto amp. connector.

  3. Check voltage between A/C auto amp. harness connector and ground.

    +

    Voltage

    (Approx.)
    A/C auto amp. Ignition switch position
    Connector Terminal OFF ACC or ON ON or START
    M50 23 Ground 0 V 0 V Battery voltage
    3 Battery voltage Battery voltage Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness or connector between A/C auto amp. and fuse block (J/B).

CHECK A/C AUTO AMP. GROUND CIRCUIT

  1. Ignition switch OFF.

  2. Check continuity between A/C auto amp. harness connector and ground.

    A/C auto amp. Continuity
    Connector Terminal
    M50 2 Ground Yes
    22

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair harness or connector.

    Power Supply and Ground Circuit

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