B1479Remote key 1: battery voltage too low

• Volkswagen group code · Body control

How the car detects it

The central electrics report that remote key number 1 sends with a weak battery. Volkswagen asks workshops to run its remote-battery test before replacing the battery, because a simple voltmeter reading can mislead.

What you may notice

• Remote lock/unlock works only close to the car, or not at all

Likely causes

• LikelyWeak key battery

Sources

• static.nhtsa.gov › MC-10161290-0002.pdf · official document
• static.nhtsa.gov › MC-10250541-0001.pdf · official document
• static.nhtsa.gov › MC-11011376-0001.pdf · official document

Backed by an official manufacturer document.

From Obdaryn's Volkswagen group pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.