Nissan Armada 2025-2026 Service and Repair Manual: Diagnosis Procedure

Nissan Armada 2025-2026 Service and Repair Manual / Ventilation, Heater & Air Conditioner / Heater & Air Conditioning Control System — Symptom Diagnosis / Compressor Does Not Operate / Diagnosis Procedure

NOTE:

Check that refrigerant is enclosed in cooler cycle normally. If refrigerant amount is shortage from proper amount, perform the inspection of refrigerant leakage.

CHECK MAGNET CLUTCH OPERATION

Check magnet clutch. Refer to Diagnosis Procedure.

Does it operate normally?

YES>>

GO TO 2.

NO>>

Repair or replace malfunctioning parts.

CHECK REFRIGERANT PRESSURE SENSOR

Check refrigerant pressure sensor. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace malfunctioning parts.

CHECK A/C AUTO AMP. OUTPUT SIGNAL

With CONSULT

Select “Data Monitor” mode of “HVAC” using CONSULT.
Select “COMP REQ SIG” and “FAN REQ SIG”, and check status under the following conditions.

Monitor item	Condition		Status
COMP REQ SIG	A/C switch	OFF	Off
COMP REQ SIG	A/C switch	ON	On
FAN REQ SIG	Front blower motor	OFF	Off
FAN REQ SIG	Front blower motor	ON	On

Is the inspection result normal?

YES>>

Replace IPDM E/R. Refer to Removal and Installation.

NO>>

Replace A/C auto amp. Refer to Removal and Installation.

Compressor Does Not Operate

SYMPTOM Compressor does not operate. ...

Heater & Air Conditioning Control System — Removal and Installation

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Other materials:

Types of Filler and Putty
Type (Standard thickness limits) Characteristics Body Filler Putty (For repairing of large dents or scratches) [10 mm (0.39 in)] Surform type This type of filler requires surforming (rough grinding). It will clog sandpaper if it is sanded only. Can be thickly applied to panel. After drying, grind ...

Removal and Installation
REMOVAL Front Air Mix Door Motor (Driver Side) Remove instrument lower panel LH and steering column cover lower. Refer to Removal and Installation. Remove driver knee air bag module. Refer to Removal and Installation. Remove side ventilator duct 2 LH. Refer to Removal and Installation. Disconnect fr ...

Resetting the seat positions
Basic information The Nissan Armada is equipped with a memory system for 3rd row power seats, allowing them to retain their original positions. However, under certain conditions such as power interruption, the stored position may be lost and require recalibration. WARNING During the reset pro ...

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