Nissan Armada 2025-2026 Service and Repair Manual: Commercial Service Tools

Nissan Armada 2025-2026 Service and Repair Manual / Ventilation, Heater & Air Conditioner / Heater & Air Conditioning System — Preparation / Preparation / Commercial Service Tools

HFO-1234yf (R-1234yf) Service Tool and Equipment

Never mix HFO-1234yf (R-1234yf) refrigerant and/or its specified lubricant with CFC-12 (R-12) or HFC-134a (R-134a) refrigerant and/or its lubricant.
Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/lubricant.
Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles refrigerant and/or lubricant) are different between HFO-1234yf (R-1234yf) and CFC-12 (R-12) or HFC-134a (R-134a). This is to avoid mixed use of the refrigerants/lubricant.
Never use adapters that convert one size fitting to another: refrigerant/lubricant contamination occurs and A/C compressor malfunction may result.

NOTE:

The actual shape of the tools may differ from those illustrated here.

Tool number (TechMate No.) Tool name		Description
(NI-52405) R1234YF RRR Service Kit		Function: Refrigerant recovery, recycling and recharging
(TIFZX) Electrical refrigerant leak detector		Function: Detects refrigerant leaks
Refrigerant identifier equipment (R-1234yf)		For checking refrigerant purity and system contamination
Power Tool		Loosening nuts, screws and bolts
Manifold gauge set (with hoses and couplers)		Identification: The gauge face indicates HFO-1234yf (R-1234yf)
Service hoses High-pressure side hose Low-pressure side hose Utility hose		Hose color: Low-pressure side hose: Blue High-pressure side hose: Red Utility hose: Yellow
Service couplers High-pressure side coupler Low-pressure side coupler		Hose fitting to service hose: M12 x 1.5 fitting is optional or permanently attached
Refrigerant weight scale		For measuring of refrigerant Fitting size: Thread size 1/2^″-16 ACME
Vacuum pump (Including the isolator valve)		Fitting size: Thread size 1/2^″-16 ACME

Sealant or/and Lubricant

Tool name Description HFO-1234yf (R-1234yf) refrigerant Container color: - Container marking: HFO-1234yf (R-1234yf) Fitting size: Thread size Large container 1/2″-16 ACME ND-OIL12 Type: Polya ...

Other materials:

Inspection
INSPECTION AFTER REMOVAL Check the following items, and replace the part if necessary. Ball Joint Inspection Check boots of upper link, lower link and steering outer socket ball joint for breakage, axial play, and swing torque: Upper link: Refer to Inspection. Lower link: Refer to Inspection. Steeri ...

Work Procedure
WRITING VEHICLE SPECIFICATIONS With CONSULT Ignition switch ON. Select "ELECTRIC SHIFTER". Select "Replace ECU" Perform the work according to the procedure displayed in CONSULT. >> GO TO 2. CHECKING THE SELF-DIAGNOSIS RESULT With CONSULT Check the DTC. Is the DTC detected? YES>> Ch ...

Engine protection mode
The Nissan Armada is equipped with an advanced engine protection mode designed to help prevent engine damage when operating under extreme conditions. This system activates when engine coolant temperature rises excessively, such as during towing heavy loads, driving uphill, or operating in high ...

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