What does code P1706 mean?

Q: What does code P1706 mean?

High Vehicle Speed Observed In Park. P1706 on Mazda vehicles means the transmission control module (TCM) has detected a vehicle speed signal that is too high while the gear selector is in Park, which should be physically impossible. The TCM compares the output shaft speed sensor signal against the expected zero speed for Park and flags the code when the calculated speed exceeds a calibrated threshold.

DTC codes / Mazda codes / P1706

P1706 · MazdaHigh Vehicle Speed Observed In Park

P1706 on Mazda vehicles means the transmission control module (TCM) has detected a vehicle speed signal that is too high while the gear selector is in Park, which should be physically impossible. The TCM compares the output shaft speed sensor signal against the expected zero speed for Park and flags the code when the calculated speed exceeds a calibrated threshold.

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.