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P2766 – BMW DTC

BMW DTC P2766 – Input/Turbine Shaft Speed Sensor ‘B’ Circuit Range/Performance

DTC P2766 meaning on BMW

The Diagnostic Trouble Code (DTC) P2766 for BMW refers to the Input/Turbine Shaft Speed Sensor ‘B’ Circuit Range/Performance. This code indicates that there is an issue with the input or turbine shaft speed sensor ‘B’ circuit, which is responsible for monitoring the rotational speed of the transmission input and output shafts.

BMW DTC P2766 symptoms

Symptoms of DTC P2766 on a BMW may include:

  • Harsh shifting
  • Delayed shifting
  • Transmission slipping
  • Transmission overheating
  • Check Engine Light illuminated

BMW DTC P2766 causes

Common causes of DTC P2766 on a BMW include:

  • Failed input/turbine shaft speed sensor ‘B’
  • Wiring or connector issues in the sensor circuit
  • Internal transmission problems
  • Faulty transmission control module (TCM)

BMW DTC P2766 seriousness

Ignoring DTC P2766 on a BMW can lead to further transmission damage and potential safety hazards. It is important to address this issue promptly to prevent more severe problems and costly repairs.

How to diagnose DTC P2766 on BMW

To diagnose DTC P2766 on a BMW, you can follow these steps:

  1. Use a diagnostic scanner to retrieve the fault codes.
  2. Inspect the input/turbine shaft speed sensor ‘B’ and its wiring for any visible damage.
  3. Check the sensor’s resistance and voltage readings to ensure it is functioning correctly.
  4. Perform a road test to observe the transmission’s behavior and confirm the symptoms.

How to fix DTC P2766 on BMW

To fix DTC P2766 on a BMW, you can try the following solutions:

  1. Replace the input/turbine shaft speed sensor ‘B’ if it is faulty.
  2. Repair any damaged wiring or connectors in the sensor circuit.
  3. Address any internal transmission issues that may be causing the fault code.
  4. If necessary, replace the transmission control module (TCM).

How to erase DTC P2766 on BMW

To erase DTC P2766 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s memory. After addressing the underlying issue and making the necessary repairs, you can reset the codes to see if the problem has been resolved.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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