P2743

DTC P2743, sometimes indicated as P274300 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the causing transmission fluid temperature sensor "b" circuit high.

A transmission fluid temperature sensor measures the temperature of the transmission fluid.
If the sensor detects a temperature that is higher than the maximum allowable temperature, the P2743 code is set.
Possible causes of this code include a bad sensor, a wiring issue, or a problem with the transmission fluid temperature gauge.
If the code is set, the best course of action is to have a qualified technician inspect the vehicle.

• P2743: Fluid Temperature Sensor B Circuit High
• P2743: Transmission Fluid Temperature Sensor "B" Circuit High
• P2743: Transmission fluid temperature (TFT) sensor B – circuit high
• P2743 00: Transmission fluid temperature (TFT) sensor B - circuit high