P1755 TOYOTA: TORQUE CONVERTER CLUTCH SOLENOID CIRCUIT MALFUNCTION
POST UPDATED IN January, 2023
P1755 TOYOTA: TORQUE CONVERTER CLUTCH SOLENOID CIRCUIT MALFUNCTION
The PCM (Powertrain Control Module) checks that the different systems of the car are working properly, thus ensuring optimum vehicle performance. For the transmission control system, the TCC (Torque Converter Clutch) is monitored to prevent the transmission from locking up.
When the TCC solenoid is activated, hydraulic pressure is sent to the converter, thus preventing the transmission from locking up. By the time the solenoid is deactivated, the pressure delivery is interrupted and the transmission locks up. The torque converter clutch solenoid is monitored by the PCM, which diagnoses the torque converter clutch solenoid to verify that it is functioning properly. If the PCM detects that the circuit controlling the TCC solenoid is malfunctioning, the P1755 OBDII fault code will be set.
The reasons for setting the P1755 OBD2 diagnostic code are:
To troubleshoot the DTC P1755 OBDII code you must do the following: