P1623Immobiliser: key not registered to this car

• Suzuki code · Engine

How the car detects it

The immobiliser lets the engine run only with a key it knows. The key's transponder answered, but its code isn't one the car has registered.

What you may notice

• The engine won't start with that key

Likely causes

• LikelyA key that isn't registered to this car
• RareImmobiliser module or engine computer

Sources

• manualslib.com › Suzuki-Swift-Sport-2008.html
• manualslib.com › Suzuki-Sx4.html
• manualslib.com › Suzuki-Grand-Vitara-Jb416.html

Backed by at least two independent sources.

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