Scanline › Fault codes › Throttle
VAG 16605Throttle/pedal position sensor B circuit range/performance
16605 is the VW Group 5-digit number VCDS (and older VAG-COM versions) shows for P0221. P0221 means “Throttle/pedal position sensor B circuit range/performance”. It's a generic powertrain code (fuel and air metering (injectors, turbo/supercharger)), so it means the same on every make, including VW, Škoda, Audi, SEAT and Cupra.
- Fix soon
- SystemThrottle
- TypeGeneric (same on all makes)
- VCDS number16605
How urgent is it?
Worth fixing soon; usually drivable meanwhile, but watch for symptoms.
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
- wiring
Typical causes are a starting point, not a diagnosis of your car.
What a shop would usually check first
The sensor and its wiring; implausible signals often come from a connector or a damaged sensor.
Related codes
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Open ScanlineScanline 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.