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Nissan Armada 2025-2026 Service and Repair Manual: Rear Automatic Air Conditioning System

Nissan Armada 2025-2026 Service and Repair Manual / Ventilation, Heater & Air Conditioner / Heater & Air Conditioning Control System / Rear Automatic Air Conditioning System

Symptom Table

NOTE:

Perform self-diagnoses with CONSULT before performing the symptom diagnosis. If any DTC is detected, perform the corresponding diagnosis.

Symptom Corresponding malfunction part Check item/Reference
Rear air conditioning system does not activate. Rear A/C switch Display unit operation

Check AV system.

Refer to Work Flow.
Rear air conditioning cannot be controlled. All control

  • Fuse

  • Rear A/C control power supply or ground circuit

  • Rear A/C control

Check rear A/C control power supply and ground circuits.

Refer to Diagnosis Procedure.
A part of control Rear A/C control

Replace rear A/C control.

Refer to Removal and Installation.
Discharge air temperature does not change.

  • Rear air mix door motor

  • A/C auto amp.

  • Rear air mix door motor power supply circuit

  • Rear air mix door motor ground circuit

  • Rear air mix door motor control signal circuit

  • Rear air mix door motor system installation condition

Check rear air mix door motor circuit.

Refer to Diagnosis Procedure.
Air outlet does not change.

  • Rear mode door motor

  • A/C auto amp.

  • Rear mode door motor power supply circuit

  • Rear mode door motor ground circuit

  • Rear mode door motor control signal circuit

  • Rear mode door motor system installation condition

Check rear mode door motor circuit.

Refer to Diagnosis Procedure.
Rear blower motor does not operates or operation speed is not normal.

  • Fuse

  • Rear blower motor

  • Rear blower motor power supply or ground circuit

  • Rear power transistor control signal circuit

  • A/C auto amp.

Check rear blower motor circuits.

Refer to Diagnosis Procedure.

  • Insufficient cooling

  • No cool air comes out. (Air flow volume is normal.)

  • Cooler cycle

  • Air leakage from each duct

  • Rear in-vehicle sensor

  • Sunload sensor

Symptom Diagnosis

Insufficient cooling

Refer to Diagnosis Procedure.

  • Insufficient heating

  • No warm air comes out. (Air flow volume is normal.)

  • Rear heater hose

  • Rear heater core

  • Air leakage from each duct

  • Rear in-vehicle sensor

  • Sunload sensor

Symptom Diagnosis

Insufficient heating

Refer to Diagnosis Procedure.
Noise is heard when the air conditioning operates.

  • Mixing any foreign object in rear blower motor

  • Rear blower motor fan breakage

  • Rear blower motor rotation inferiority

Check rear blower motor.

Refer to Component Inspection (Rear Blower Motor).
Biometric cooling control does not activate. IR sensor

Check IR sensor.

Refer to Diagnosis Procedure.
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