What does code P1742 mean?

Q: What does code P1742 mean?

Torque Converter Clutch Solenoid Shorted. P1742 on a Mazda means the transmission control module (TCM) has detected an abnormally low resistance or a short to ground on the electrical circuit that operates the torque converter clutch (TCC) solenoid. The TCM commands the solenoid to lock the torque converter for fuel efficiency, but the shorted circuit prevents proper current flow, so the TCM sets this code and usually disables lockup.

DTC codes / Mazda codes / P1742

P1742 · MazdaTorque Converter Clutch Solenoid Shorted

P1742 on a Mazda means the transmission control module (TCM) has detected an abnormally low resistance or a short to ground on the electrical circuit that operates the torque converter clutch (TCC) solenoid. The TCM commands the solenoid to lock the torque converter for fuel efficiency, but the shorted circuit prevents proper current flow, so the TCM sets this code and usually disables lockup.

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.