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TuningBot DTC Database · v4.37.15

P2779 Transmission gear selection switch, downshift - range/performance problem

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P2779 means

P2779
Transmission gear selection switch, downshift - range/performance problem Generic · engine Data confidence 65%

The control module judged the Transmission gear selection switch, downshift behaviour implausible for the current operating conditions.

Possible causes

  • Wiring
  • transmission gear selection switch

Related and nearby codes

How to read P2779

P

Powertrain: engine, transmission and driveline systems.

2

Generic SAE-standard code: same meaning on every make.

779

Specific fault index within the subsystem.

Frequently asked questions about P2779

What does P2779 mean?

Transmission gear selection switch, downshift - range/performance problem. The control module judged the Transmission gear selection switch, downshift behaviour implausible for the current operating conditions.

Is P2779 generic or manufacturer-specific?

P2779 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2779 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

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