Error code
OBD2 P2743
OBD2P2743
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Transmission Fluid Temperature Sensor 'B' Circuit High.
Severity
moderateCan drive but monitor for worsening symptoms and address soon.
Summary
P2743 indicates that the transmission fluid temperature sensor B circuit is reporting an abnormally high reading, likely due to issues within or connected to this specific sensor in the transmission.
Common Causes
- Wiring short to positive
- Faulty TFT sensor
Fixes
- Replace faulty transmission fluid temperature sensor B
FAQ
What does P2743 mean?
P2743 indicates a high reading from the transmission fluid temperature sensor B circuit, suggesting issues with wiring or the sensor itself.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P2700Transmission Friction Element 'A' Apply Time Range/Performance
- P2701Transmission Friction Element 'B' Apply Time Range/Performance
- P2702Transmission Friction Element 'C' Apply Time Range/Performance
- P2703Transmission Friction Element 'D' Apply Time Range/Performance
- P2704Transmission Friction Element 'E' Apply Time Range/Performance
- P2705Transmission Friction Element 'F' Apply Time Range/Performance
- P2706Shift Solenoid 'F'
- P2707Shift Solenoid 'F' Performance or Stuck Off
- P2708Shift Solenoid 'F' Stuck On
- P2709Shift Solenoid 'F' Electrical
- P2710Shift Solenoid 'F' Intermittent
- P2711Unexpected Mechanical Gear Disengagement