# P1609 on the 2026 Volkswagen Tiguan

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name P1609

- [11032215](https://open.wenmarpro.com/bulletins/11032215), 2026-05-05: Under this service action, updated engine control module \(ECM\) software will be installed to provide robustness improvements to the ECM calibration for the turbocharger variable turbine geometry \(VTG\) actuator endpoints. This has no impact on vehicle emissions. Updated affected vehicles chart. Added note to the work instructions regarding fault code P160900.
- [11032212](https://open.wenmarpro.com/bulletins/11032212), 2026-05-05: Under this service action, updated engine control module \(ECM\) software will be installed to provide robustness improvements to the ECM calibration for the turbocharger variable turbine geometry \(VTG\) actuator endpoints. This has no impact on vehicle emissions. Updated affected vehicles chart. Added note to the work instructions regarding fault code P160900.