P2766 OBD II Trouble Code Input/Turbine Speed Sensor B Circuit Range/Performance

Symptoms of P2766 OBD II Trouble Code

  • Speedometer and/or odometer fluctuation
  • Harsh or erratic transmission shifting
  • Failure of the transmission to shift at all
  • Poor fuel efficiency
  • Intermittent speedometer (odometer) operation
  • The engine may stall when stopping the vehicle

Common Causes of P2766 OBD II Trouble Code

  • Damaged, loose, or burned wiring and/or connectors
  • A faulty input speed sensor B
  • A defective output speed sensor B
  • Malfunctioning transmission torque converter
  • PCM failure or a PCM programming error

Severity of P2766 OBD II Trouble Code

In some instances, the PCM will place the transmission in 'limp-in' mode when this code is stored. The transmission will shift harshly in this mode. If the transmission begins to shift irregularly when you are presented with a P2766, the problem should be addressed immediately.