P2766 - OBD II Trouble Code

Our automotive experts have put together the following information about the P2766 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2766 code.

OBD II Fault Code

• OBD II P2766

OBD-II Code Transmission may not shift properly is defined as a Input/Turbine Speed Sensor "B" Circuit Range/Performance

The Input Speed Sensor tells the Transmission Control Module (TCM) how fast the engine is spinning so the correct gear can be engaged. When the TCM receives an inaccurate signal from this sensor, it can't properly shift the vehicle from gear to gear as the vehicle needs to change speed an rates of acceleration. Most vehicles use the crankshaft position sensor for this information. The engine control module (PCM) or TCM will set code P2766.

Transmission may not shift properly Symptoms

• Increased fuel consumption
• Transmission may not shift properly

Common Problems That Trigger the P2766 Code

• Crankshaft Position Sensor (CKP) failure
• Powertrain Control Module (PCM) failure
• Transmission Control Module (TCM) failure
• Wiring issue