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TuningBot DTC Database · v4.37.15

P278A Transmission kick - down switch - circuit malfunction

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

P · PowertrainEngineOBD2

What P278A means

P278A
Transmission kick - down switch - circuit malfunction Generic · engine Data confidence 78%

The control module detected improper operation of the Transmission kick - down switch circuit.

Possible causes

  • Wiring
  • transmission kick - down switch
  • TCM
  • ECM

Related and nearby codes

How to read P278A

P

Powertrain: engine, transmission and driveline systems.

2

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

78A

Specific fault index within the subsystem.

Frequently asked questions about P278A

What does P278A mean?

Transmission kick - down switch - circuit malfunction. The control module detected improper operation of the Transmission kick - down switch circuit.

Is P278A generic or manufacturer-specific?

P278A is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P278A 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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