P2743 OBD II Trouble Code Transmission Fluid Temperature Sensor B Circuit High Input

How to diagnose, repair, and info on symptoms and causes of a P2743 transmission trouble code which means a high input in the trans fluid B temperature sensor circuit.

Symptoms of P2743 OBD II Trouble Code

  • Illuminate check engine light
  • Improper torque converter clutch operation
  • Harsh or delayed shifts
  • Vehicle stuck in limp mode

Common Causes of P2743 OBD II Trouble Code

  • Faulty transmission fluid temperature sensor
  • Transmission problems
  • Wiring problems
  • Faulty PCM

Severity of P2743 OBD II Trouble Code

The severity of this code is moderate to severe. In some cases, this code can indicate a transmission problem. It's a good idea to address this code as soon as possible.