What does code P1797 mean?

Q: What does code P1797 mean?

P/N Switch Open Or Short Circuit. P1797 on a Mazda indicates that the transmission control module (TCM) has detected an open or short circuit in the park/neutral (P/N) switch circuit, which tells the computer whether the gear selector is in Park or Neutral. The TCM monitors the voltage on the signal line and flags the code when it falls outside the expected range for the current gear position.

DTC codes / Mazda codes / P1797

P1797 · MazdaP/N Switch Open Or Short Circuit

P1797 on a Mazda indicates that the transmission control module (TCM) has detected an open or short circuit in the park/neutral (P/N) switch circuit, which tells the computer whether the gear selector is in Park or Neutral. The TCM monitors the voltage on the signal line and flags the code when it falls outside the expected range for the current gear position.

SystemPowertrain

Code typeMazda specific

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

Guidance is general and written for Mazda vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.