Nissan Armada 2025-2026 Service and Repair Manual: Refrigeration System Symptoms

Heater & Air Conditioning System — Symptom Diagnosis

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Trouble Diagnosis For Unusual Pressure

Diagnose using a manifold gauge whenever system’s high and/or low side pressure(s) is/are unusual. The marker above the gauge scale in the following tables indicates the standard (usual) pressure ra ...

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Diagnosis Procedure
CHECK “SELECTIVE UNLOCK” SETTING IN COMBINATION METER Check “selective unlock” setting is ON. Is the inspection result normal? YES>> GO TO 2. NO>> Set “On” in combination meter. REPLACE INTELLIGENT KEY UNIT Replace Intelligent Key unit. Refer to Removal and Installation. Co ...

Perform Lubricant Return Operation
CAUTION: If a large amount of refrigerant or lubricant leakage is detected, never perform lubricant return operation. Start the engine and set to the following conditions. Engine speed: Idling to 1,200 rpm A/C switch: ON Fan (blower) speed: Maximum speed set Intake door position: Recirculation Temp ...

Precautions for Removing Battery Terminal
NOTE: NOTE: NOTE: The removal of 12V battery may cause a DTC detection error. HOW TO DISCONNECT 12V BATTERY TERMINAL Disconnect 12V battery terminal according to instruction described below. Open the hood. Turn ignition switch to the ON position. Turn ignition switch to the OFF position with the d ...