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P2765 is a diagnostic trouble code (DTC) for "Input/Turbine Speed Sensor B Circuit". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
The P2765 code is a generic powertrain code related to the transmission or gearbox. In particular, it states that the engine control module (ECM) is receiving incorrect information from the input/turbine speed sensor B.
Codes related to the P2765 include:
The ECM receives signal inputs from the engine speed sensor, which it translates to the transmission to help it shift correctly. When a P2765 code is stored, it means the system has multiple input speed sensors and it is specifying an issue with sensor B, noting that either an incorrect, erratic, or no signal is being received. Check your vehicle’s service manual to confirm the location of the B sensor.
A vehicle’s ECM expects input speed to gradually increase and not exceed the output speed. At this point, a shift point is reached. When the ECM receives a signal that either varies from set parameters from input sensor B, a P2765 code will be stored.
Several problems may cause a P2765 code including:
A mechanic may use several methods to diagnose a P2765 trouble code, including:
Sometimes, a vehicle speed malfunction may be considered as the cause of the P2765 code, causing the unnecessary replacement of vehicle speed sensors.
Because a vehicle’s safe driving operation may be impacted due to faults that store a P2765 code, this code is considered a potentially serious code. When this code appears, it is recommended to immediately take your vehicle to your local service center or mechanic for repair and diagnosis.
Several repairs can fix a P2765 trouble code and include:
Repair or replace any damaged or corroded wiring and connectors
Flush and fill transmission fluid
Repair or replace damaged or defective input speed sensor circuits and connectors
Repair or replace damaged or defective output speed sensor circuits and connectors
Repair or replace damaged or defective shift solenoid
Repair or replace damaged or defective engine temperature sensor
Repair or replace any damaged or defective system circuits, components, and wiring
Clear all codes, test-drive the vehicle, and rescan to see if any codes reappear
As many vehicles will require multiple faults or failures before a P2765 code will illuminate a service engine or warning light, vehicle owners should be aware that it may not signify the first time the issue has occurred.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.