Nissan Armada 2025-2026 Service and Repair Manual: Inspection of Welded Portions

Nissan Armada 2025-2026 Service and Repair Manual / Body Exterior, Doors, Roof & Vehicle Security / Body Repair — Fundamentals / Service Information / 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 when gas is trapped in the weld metal.
	Is torch feed operated properly? Is voltage low? Is the area to be welded clean?	This is an unfused condition between weld metals or between deposited metals.
	Is current too great? Is torch feed too fast? Is torch angle correct?	Undercut is a condition where the overmelted metal has made grooves or an indentation. Metal's section is made thinner, and therefore the weld zone's strength is severely lowered.
	Is current too little? Is wire feed out of order? Is extrude extension too long? Is groove face too small?	This is a condition where there is poor deposition made under the panel.
	Is torch feed too slow? Is current too little?	Overlap is apt to occur in fillet weld rather than in butt weld. Overlap causes stress concentration and results in premature corrosion.
	Is current too great? Is correct wire selected?	Spatter is prone to occur in fillet weld.
	Are there any stains on welded surface (paint, oil, rust)?	Cracks usually occur on top surface only.

Condition of Panel to be Welded

Paint, rust, or oils on the surface of the panel cause blowholes and spatter when the panel is welded. Thoroughly remove any foreign matter with a belt sander or wire brush. ...

Types of MAG Welding

Welding Methods Using Gas Shielded Arc Welding NOTE: Before MAG welding is performed on body components, some test welds should be carried out on offcuts of the replacement part that are not being use ...

Other materials:

Anchoring with Frame Attachments
A difference between the frame anchoring and the uni-body anchoring is that the frame itself is held down. (For the basic anchoring methods for uni-bodies, refer to Securing the Vehicle.) Frame straightening equipment makers offer the attachments for frame anchoring including those intended for any ...

Diagnosis Procedure
CHECK INTELLIGENT KEY SYSTEM SYMPTOM TABLE Check Intelligent Key system symptom table. Refer to Diagnosis Procedure. >> GO TO 2. PERFORM SELF-DIAGNOSIS RESULT Select “Self Diagnostic Result” mode of “INTELLIGENT KEY”, and check if DTC is detected. Is DTC detected? YES>> Perfor ...

Removal and Installation
REMOVAL Remove outside seat cushion finisher outer. Refer to Disassembly and Assembly. Disengage massage switch harness fixing clip. : Clip Remove fixing screws and then remove massage switch. INSTALLATION Install in the reverse order of removal. ...

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