What usually causes P2106?

Throttle body or pedal sensor fault put the car in limp mode.

P2106Throttle actuator control system: forced limited power

P2106 means “Throttle actuator control system: forced limited power”. It's a generic powertrain code (fuel, air metering and emission controls), so it means the same on every make, including VW, Škoda, Audi, SEAT and Cupra.

Urgent
SystemThrottle
TypeGeneric (same on all makes)

How urgent is it?

Can affect safety or cause damage if ignored: get it checked soon.

Which system and module

Scanline files it under Throttle. The first letter, P, means powertrain (engine, transmission, emissions).

Usually stored by the engine control unit (VCDS address 01, Engine).

What usually causes it

Throttle body or pedal sensor fault put the car in limp mode

Typical causes are a starting point, not a diagnosis of your car.

Related codes

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Scanline explains fault codes; it isn't a repair authority. This page explains what the code means; it can't tell you what is wrong with your car. Ross-Tech's wiki has their own notes on VW Group faults.