Guide To P2767 OBD Error Code Solutions

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If you are experiencing unusual response of the throttle, lack of power forms the car engine, impact on the fuel economy, engine stalling and harsh shifts and frequent illumination of the Check Engine Light, it might be an indication of the OBD Code P2767 error.

The P2767 code indicates that the car’s computer has received an input signal from the engine speed sensor that is incorrect in some way. Without accurate input information, the computer will be unable to create the right shifting strategy for the transmission.

In order for an automatic transmission to shift properly, the car’s computer must know the vehicle’s engine speed. If the input signal from the input speed sensor is erratic or incorrect, then the computer will lack information crucial for shifting correctly for current conditions. If the input speed changes radically, or exceeds the output speed for sensor “B”, then the PCM will set the P2767 code.

What causes this problem with the Input/Turbine Speed Sensor "B" Circuit No Signal?

• Dirty, contaminated, or degraded transmission fluid
• Low transmission fluid level
• Mechanical failure of transmission components
• Internal pressure losses
• Clogged fluid passages
• Malfunctioned pressure control solenoid
• Transmission speed sensor faulty
• Transmission torque converter issues
• Bad input speed sensor “B”
• Bad output speed sensor “B”
• Speed sensor wiring and connector issues

1. Electronic Control Unit - ECU monitors the temperature differences in the boost converter with the help of the temperature sensors to prevent the converter from overheating and malfunctioning. Thus, replace faulty ECU immediately.
2. Automatic Transmission Module - Sometimes the automatic transmission module is unable to communicate or correctly anticipate the speed of the vehicle and thus creates difficulty in gear shift leading to sluggish acceleration, throttle response and stalling. Thus, can also hamper a lot of components physically and thus must be checked and replaced, if required.
3. Engine Control Module - ECM failures and faults can be very difficult to find and resolve as these are very rare and might require a complete reprogramming of the system to avoid wrong codes from getting stored in the system, leading to misdiagnosis. Replace it now!
4. Powertrain Control Module - Faulty PCM can disrupt the normal functioning of the vehicle by affecting the transmission system and the fuel delivery system. This will cause the system to store wrong OBD error and thus can lead to misdiagnosis.
5. Diagnostic Tool - In order to be that DIY guy, you need few diagnostic tools to get your car problems pointed out easily. Our diagnostic tools collection will come in handy to do so, so why not have a look?
6. Automatic Transmission Solenoid - A functioning transmission automatically downshifts as it slows down and changes to first gear once you reach a complete stop. However, a bad shift solenoid will cause your transmission to downshift uncontrollably or not at all.
7. Automatic Transmission Sensor - If you notice that your transmission is shifting harshly or roughly, you should contact a local certified mechanic as soon as possible and get the transmission sensor tested. Replace faulty sensor now!
8. Auto Transmission Torque Converter - If you start to feel shudders when driving, this could mean that you have torque converter problems on your hand. It will often feel like running over rough road or bumps and you will definitely notice it when it happens.
9. Automatic Transmission Connector - Damaged connectors will affect the functionality of pressure control solenoid and thus must be replaced as quickly as possible.
10. Transmission Fluid - Erratic shifts cause the shifting of gear to happen too late or too soon along with banging sound. This can be due to faulty transmission fluid. Thus, refill the transmission fluid now! 

Willing to know some common symptoms of OBD Code P2767? Your wish is our demand. Have a look at them below:

Common Symptoms

• Stored trouble code and an illuminated warning light
• Reverse gear engagement delayed, or may not engage at all
• Transmission slippage
• Erratic gear shifts and delayed response
• Affected fuel economy
• Malfunction indicator light on

We have listed out so ways which would help you to correct the occurrence of OBD Code P2767. They are mentioned here as follows:

• Transmission fluid replacement
• Transmission range switch replacement
• Repairing an open or short in the wiring harness or replacing it
• Park/neutral position switch repair or replacement
• Input/output speed sensor replacement
• Replace transmission pressure control solenoid
• Broken electrical connections repair or replace

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If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

• The P2767 code should be diagnosed with an OBD-II trouble code scanner. A trained technician will look at the freeze frame data on the scanner to assess the code, and to check for the presence of any other trouble codes.
• The mechanic will begin by visually inspecting the electrical components in the transmission circuit. Any wires that are shorted, connectors that are open or corroded, or fuses that are blown will need to be replaced.
• Check the dipstick to make sure that the transmission fluid is not low and refill if required. Look at the fluid to determine if it is clean and replace, if needed.
• Smell the fluid to determine if there is a burnt odor. If the fluid smells burnt, remove the transmission pan to check for debris. Also check for burnt wiring and faulty circuitry.
• Inspect the transmission to determine if damage has occurred that will require extensive repairs. Perform a pressure control solenoid continuity test to check for open or short in the circuit.
• Check for voltage output and input from the turbine speed sensors and replace if the sensor is faulty.
• Check for Transmission Control Module and Powertrain Control Module faults that may require repairs, reprogramming or replacement. Although, it is rare but still must not be rules out.

Common Mistakes When Diagnosing the P2767 Code

It is important to follow the diagnostic steps properly to correct the OBD code P2767 error. Following are the problems that can be missed and are mostly the reason for this kind of problem:

• Internal transmission failure
• Powertrain Control Module (PCM) failure
• Transmission Control Module (TCM) failure
• Transmission valve body failure
• Wiring issue and connector problems
• Automatic transmission solenoid faulty