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. Its meaning is in the manufacturer's service information.
| Dealer 24TT_20260421 | 2026-05-05. Service campaign. 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. |
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| Circular 24TT_20260421 | 2026-05-05. Service campaign. 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. |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.