BMW DTC P2743 – Transmission Fluid Temperature Sensor ‘B’ Circuit High
DTC P2743 meaning on BMW
DTC P2743 on a BMW indicates a fault with the Transmission Fluid Temperature Sensor ‘B’ circuit. This means that the signal being received from the sensor is higher than the expected range, suggesting a potential issue with the sensor or its circuitry.
BMW DTC P2743 symptoms
Symptoms of DTC P2743 on a BMW may include erratic shifting behavior, transmission slipping, overheating of the transmission fluid, and in some cases, the transmission may go into a fail-safe mode to prevent further damage.
BMW DTC P2743 causes
The common causes of DTC P2743 on a BMW include a faulty Transmission Fluid Temperature Sensor ‘B’, wiring issues in the sensor circuit, a poor electrical connection, or a problem with the transmission control module.
BMW DTC P2743 seriousness
Ignoring DTC P2743 on a BMW can lead to further damage to the transmission system, potentially resulting in costly repairs. It is important to address this issue promptly to prevent any long-term damage.
How to diagnose DTC P2743 on BMW
To diagnose DTC P2743 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a visual inspection of the Transmission Fluid Temperature Sensor ‘B’ and its wiring. They may also test the sensor’s resistance and check for any loose connections.
How to fix DTC P2743 on BMW
Fixing DTC P2743 on a BMW usually involves replacing the faulty Transmission Fluid Temperature Sensor ‘B’ if it is determined to be the cause of the issue. Additionally, any damaged wiring or poor connections should be repaired or replaced to ensure proper functionality.
How to erase DTC P2743 on BMW
Once the underlying issue causing DTC P2743 on a BMW has been resolved, the fault code can be cleared using a diagnostic scanner. This will reset the transmission control module and turn off the check engine light associated with the fault code.