P1746 Diagnostic Trouble Code (9 interpretations)

The control module detected a fault associated with the Transmission Control Module Output Stage circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.

The control module detected a fault associated with the Electronic Pressure Control Solenoid Low Conditions circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Ford.

The control module detected a fault associated with the TCM ‘L’ Line circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.

The control module detected a fault associated with the Pressure Regulator 2 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Jaguar.

The control module detected a fault associated with the Transmission fluid pressure (TFP) solenoid - solenoid open circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Land Rover.

The control module detected that the AT - electronic pressure.control solenoid signal stayed below the expected range. This is the manufacturer-specific definition used by Mazda.

The control module detected a fault associated with the Control Unit Detective (Relay) circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Porsche.

The control module detected improper operation of the TCM/solenoid valves, supply voltage circuit. This is the manufacturer-specific definition used by Audi.

The control module detected an electrical fault in the Transmission Solenoid Power Relay circuit. Volkswagen Group tools also report it as fault code 18154. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).