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Code P2765

Symptoms

• Check Engine Light is on

• Transmission may not shift properly

• Poor fuel economy

Common Causes

• Faulty Input/Turbine Shaft Speed Sensor B

• Damaged or corroded wiring or connectors

• Faulty ECM/TCM

Glossary

ECM: Engine Control Module

TCM: Transmission Control Module

Related Codes

• P0715

• P0720

Laymans terms

This code means that the car's computer is having trouble reading the speed of a part inside the transmission. It's like when your bike's speedometer stops working and you can't tell how fast you're going.

Explanation

The P2765 code indicates an issue with the circuit for the Input/Turbine Shaft Speed Sensor B, which helps the car's computer determine the transmission's input speed.

Technical description

The Input/Turbine Shaft Speed Sensor B is responsible for providing the Engine Control Module (ECM) or Transmission Control Module (TCM) with the rotational speed of the transmission's input shaft. This data is crucial for the ECM/TCM to manage engine and transmission operations efficiently. A P2765 code is set when the ECM/TCM detects a malfunction in the sensor's circuit.

Diagnosis steps

• Use an OBD-II scanner to verify the code and check for other related codes.

• Inspect the wiring and connectors for damage or corrosion.

• Test the Input/Turbine Shaft Speed Sensor B for proper operation.

Repair procedures

• Replace the Input/Turbine Shaft Speed Sensor B if faulty.

• Repair or replace damaged wiring or connectors.

• Reprogram or replace the ECM/TCM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Toyota Camry

• Honda Accord

Preventive measures

• Regularly inspect and maintain transmission components.

• Ensure wiring and connectors are clean and secure.

• Follow manufacturer service intervals for transmission maintenance.

Error code type

Sensor Issue

User experience recommendations

• Avoid driving at high speeds until the issue is resolved.

• Consult with a professional mechanic for accurate diagnosis and repair.

Warranty information

Check with your vehicle's manufacturer for warranty coverage on transmission components.

Historical data

P2765 is a relatively common code indicating issues with transmission speed sensors, often due to wear and tear or environmental factors affecting sensor performance.

Urgency level

Moderate – While the vehicle may still be drivable, ignoring this issue can lead to further transmission problems.

Legal and safety notice

Driving with a faulty transmission sensor can lead to unsafe driving conditions. Address the issue promptly to ensure vehicle safety.

Testing conditions

• Vehicle at operating temperature

• Transmission in gear

Component location

The Input/Turbine Shaft Speed Sensor B is typically located on the transmission housing, near the input shaft.

FAQs

Q: Can I drive with a P2765 code?
A: It's possible to drive with this code, but it's not recommended as it may cause further damage to the transmission.

Q: How can I prevent a P2765 code?
A: Regular maintenance and inspections of the transmission system can help prevent this code.

Last updated: Jun 9, 2026 • Source: internal database
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