P1753 - FAULT CODE - OBD2

P1753 ACURA, HONDA, ISUZU: PROBLEM IN TORQUE CONVERTER CLUTCH SOLENOID VALVE CIRCUIT

The Powertrain Control Module (PCM) is responsible for monitoring the vehicle’s systems to ensure that they are all functioning properly. In the case of the transmission system, there is the Torque Converter Clutch (TCC) solenoid, which is controlled to prevent the A/T (Automatic Transmission) from locking. Once this solenoid is activated, hydraulic pressure is applied to the TCC and the transmission lockup is canceled, with the deactivation of the solenoid the hydraulic pressure to the clutch is interrupted and the transmission lockup is allowed.

The PCM controls the TCC solenoid. The controller circuit has the function of diagnosing the valve. It detects and outputs the status of an open or shorted circuit and sends a return signal to the PCM accordingly. The P1753 OBDII fault code is set when the return signal during the PCM command is not appropriate, which is why the PCM interprets this condition as a malfunction.

• Check Engine lamp illuminated.
• Impossible gear shifting by the transmission.

P1753 OBD2 diagnostic code is set for one of the following reasons:

• The available amount of transmission fluid might not be sufficient.
• Transmission fluid could be contaminated.
• Torque Converter Clutch solenoid wires may be damaged.
• TCC solenoids may have poor electrical connections.
• Torque Converter Clutch solenoid may be faulty.

To troubleshoot the DTC P1753 OBDII code you must do the following:

• Consult the TSB (Technical Service Bulletins).
• Verify if the available transmission fluid has enough quantity. Likewise, it is necessary to check if such fluid does not present symptoms of contamination. In either case, if you discover obvious inconsistencies, make the appropriate corrections.
• Inspect all TCC solenoid wiring and connections for wear or corrosion damage. If such deficiencies or an open or shorted circuit are detected, make the necessary repairs.
• Measure the resistance of the Torque Converter Clutch solenoid and check if the actual reading is within the parameters indicated by the manufacturer in their specifications. If resistance is found to be different than indicated, replace the solenoid.