Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a sensor that checks how fast a part inside the transmission is spinning. This error means that the sensor isn't working right, like if a thermometer gave the wrong temperature.
The P2766 code is triggered when the powertrain control module (PCM) detects a problem with the input/turbine shaft speed sensor B circuit. This sensor is responsible for monitoring the speed of the turbine shaft inside the transmission.
The Input/Turbine Shaft Speed Sensor B measures the rotational speed of the transmission's turbine shaft. This information is used by the PCM to control shifting and other transmission functions. If the sensor's output is outside the expected range, or if there is a performance issue, the PCM will set the P2766 code.
• Check Engine Light is on
• Transmission may not shift properly
• Decreased fuel efficiency
• Transmission slipping
• Faulty input/turbine shaft speed sensor
• Wiring issues such as shorts or open circuits
• Poor electrical connections
• Faulty PCM
PCM: Powertrain Control Module, the computer that controls engine and transmission functions.
Turbine Shaft: A shaft in the transmission that connects to the torque converter and transfers power.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors related to the sensor.
• Test the sensor's resistance and output.
• Check for any other related codes.
• Replace the faulty input/turbine shaft speed sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 to $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular transmission maintenance
• Inspect and replace wiring as needed
• Use quality replacement parts
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Avoid driving the vehicle if transmission issues are severe.
Check with the vehicle manufacturer for specific warranty coverage related to the transmission and sensors.
This code has been associated with sensor failures and wiring issues in vehicles with automatic transmissions.
Moderate – Addressing this issue is important to prevent further transmission damage.
Driving with a malfunctioning transmission sensor can lead to unsafe driving conditions.
• Vehicle at operating temperature
• Transmission engaged
The input/turbine shaft speed sensor is typically located on the transmission housing, near the torque converter.
Q: Can I drive with a P2766 code?
A: It's not recommended to drive with this code active as it can lead to transmission damage.
Q: How do I know if the sensor is faulty?
A: A professional can test the sensor's resistance and output to determine if it's faulty.
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