What does code P1740 mean?

Q: What does code P1740 mean?

Torque Converter Clutch Solenoid Mechanical Fault. P1740 on Mazda vehicles indicates that the powertrain control module has detected a mechanical fault within the torque converter clutch solenoid circuit or its hydraulic actuation path. The computer commands the clutch to engage and monitors the resulting engine speed drop or slip, and when the expected change does not occur, it stores this code.

DTC codes / Mazda codes / P1740

P1740 · MazdaTorque Converter Clutch Solenoid Mechanical Fault

P1740 on Mazda vehicles indicates that the powertrain control module has detected a mechanical fault within the torque converter clutch solenoid circuit or its hydraulic actuation path. The computer commands the clutch to engage and monitors the resulting engine speed drop or slip, and when the expected change does not occur, it stores this code.

SystemPowertrain

Code typeMazda specific

SeverityMedium

Fix difficultyProfessional

AreaTransmission

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