norbert_star1
Armada Key Fob Battery
Summary of the thread
A 2006 Nissan Armada displayed a 'key battery low' warning, and the keyless entry system was malfunctioning. The issue was likely due to a depleted key fob battery. Replacing the battery with a new CR2032, which should have a voltage of 3V, resolved the problem, restoring normal function.
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4 comment(s)
norbert_star1 (community.author)
Voltage, huh? Never thought to check that directly. What voltage should I be seeing from a healthy fob battery, then?
robinice96
The standard voltage for a new CR2032 battery, which is commonly used in key fobs, is 3V. Anything significantly below that indicates a weak battery. Considering the symptoms and error code, replacing the battery is a logical first step. If the problem persists after replacement, I would recommend taking the Armada to a qualified workshop for further diagnosis.
norbert_star1 (community.author)
Spot on! Popped in a fresh battery, and everything's back to normal. Total cost: 37€ Thanks for pointing out the obvious!
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NISSAN
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ARMADA
robinice96
Indeed, the symptoms you describe strongly suggest a depleted key fob battery. Have you attempted replacing the battery yourself to see if this resolves the issue? What is the error code, and have you checked the battery voltage?