Nissan Armada 2025-2026 Service and Repair Manual: Symptom Table

Nissan Armada 2025-2026 Service and Repair Manual / Ventilation, Heater & Air Conditioner / Heater & Air Conditioning Control System — Symptom Diagnosis / 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.
Rear air conditioning cannot be controlled.	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.

Rear Automatic Air Conditioning System

...

Insufficient Cooling

...

Other materials:

Inspection of Welded Portions
Refer to the inspection method for spot welding. Refer to Inspection of Welded Portion. Sample defects and welding conditions of MAG welding. Defect Check points Remarks Is correct wire selected? Is gas sealed properly? Is weld joint surface clean? Is weld zone quickly cooled? A hole is made w ...

Glue System
Glue systems allow pulling when an area is not easily accessible like roof rail or beneath braces. It is also one of the easiest systems to learn. But it is mainly limited to soft dents. A couple of things that affect the glue pulling: Temperature The diameter and the size of the pull knob Applica ...

Inspection
WARNING: COMPONENT PART Make sure that the mounting conditions (looseness, backlash) of each component and component conditions (wear, damage) are normal. WHEEL HUB ASSEMBLY (BEARING-INTEGRATED TYPE) Check the following items, and replace the part if necessary. Move wheel hub and bearing assembly in ...

0.0053