What does code P1757 mean?

Q: What does code P1757 mean?

Transmission Shift Solenoid B Circuit Shorted. P1757 on a Mazda means the transmission control module (TCM) has detected an abnormally low resistance or a direct short to ground on the electrical circuit that operates shift solenoid B inside the transmission valve body. The TCM commands the solenoid on and off to control gear shifts, and it monitors the circuit for expected voltage and current; when the feedback falls outside the valid range for a calibrated period, it logs this code and typically illuminates the check engine light or flashes the hold/AT lamp.

DTC codes / Mazda codes / P1757

P1757 · MazdaTransmission Shift Solenoid B Circuit Shorted

P1757 on a Mazda means the transmission control module (TCM) has detected an abnormally low resistance or a direct short to ground on the electrical circuit that operates shift solenoid B inside the transmission valve body. The TCM commands the solenoid on and off to control gear shifts, and it monitors the circuit for expected voltage and current; when the feedback falls outside the valid range for a calibrated period, it logs this code and typically illuminates the check engine light or flashes the hold/AT lamp.

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.