Description of the P0767 fault code.
OBD2 Error Codes

P0767 Shift solenoid valve ā€œDā€ stuck on

26.05.2022 /

P0767 ā€“ OBD-II Trouble Code Technical Description

Trouble code P0767 indicates that the PCM has detected that the shift solenoid valve "D" is stuck in the on position.

What does the fault code mean P0767?

Trouble code P0767 indicates that the PCM (engine control module) has detected that the shift solenoid valve ā€œDā€ is stuck in the on position. This means that the valve that controls gear shifting is stuck in a position where the gear does not shift as intended. For an automatic transmission to operate properly, hydraulic fluid must pass between the hydraulic circuits and help change the gear ratio to accelerate or decelerate the vehicle, fuel efficiency, and proper engine operation. Basically, the gear ratio is determined by taking into account engine speed and load, vehicle speed and throttle position. It should be noted that in some vehicles the P0767 code does not appear immediately, but only after the error has appeared multiple times.

Fault code P0767.

Possible reasons

Some of the possible causes of the P0767 trouble code are:

  • Solenoid valve ā€œDā€ is stuck in the on state due to wear or contamination.
  • Damage to the electrical circuit, including wires, connectors, or connections associated with the solenoid valve.
  • Problems with the engine control module (PCM), which may not correctly interpret signals from the solenoid valve.
  • There is a malfunction in the power circuit that supplies power to the solenoid valve.
  • Problems with data transfer between various automatic transmission components.

These are just a few reasons, and a more accurate diagnosis can be made with specialized equipment and a vehicle inspection by a qualified technician.

What are the symptoms of a fault code? P0767?

Symptoms for DTC P0767 can vary depending on the specific cause and operating conditions of the vehicle, some of the possible symptoms are:

  • Gearshift problems: The vehicle may have difficulty shifting gears or may experience noticeable jerking or unusual noises during shifting.
  • Power Loss: If the solenoid valve ā€œDā€ is stuck in the on state, a loss of engine power or deterioration in the dynamic characteristics of the vehicle may occur.
  • Unusual noises or vibrations: There may be unusual sounds or vibrations in the area of ā€‹ā€‹the transmission, which may indicate problems with its operation.
  • Data transmission fault: If there are problems with the vehicle's electrical circuit or PCM, additional symptoms may occur, such as an illuminated Check Engine Light, instrument panel instruments not working, or other electrical problems.
  • Emergency mode: In some cases, the vehicle may go into limp mode to protect the transmission system from damage.

It is important to note that these symptoms can be caused by other causes, so it is recommended that you consult a qualified professional for an accurate diagnosis.

How to diagnose a fault code P0767?

Diagnosing the P0767 trouble code involves a number of steps to identify the cause of the problem, some of them are:

  1. Scan error code: You will first need to use an OBD-II scanner to read the P0767 trouble code and any other codes that may be stored in the system. This will help determine if there are other related problems.
  2. Checking electrical connections: Check electrical connections, including connectors and wires associated with the ā€œDā€ solenoid valve and the PCM. Make sure connections are tight and free of damage or corrosion.
  3. Voltage measurement: Using a multimeter, measure the voltage on the solenoid valve ā€œDā€ circuit under various engine and transmission operating conditions.
  4. Resistance test: Check the resistance of solenoid valve ā€œDā€ using a multimeter. Normal resistance should be within the manufacturer's specifications.
  5. Checking mechanical components: If necessary, visually inspect solenoid valve ā€œDā€ and adjacent components for damage, leaks, or other problems.
  6. PCM Testing: If other problems have been ruled out, additional PCM testing may be required to identify any defects or malfunctions.
  7. Professional diagnostics: If you are unsure of your diagnostic skills or do not have the necessary equipment, it is recommended that you contact a qualified auto mechanic or auto repair shop for more detailed diagnostics and repairs.

Diagnostic errors

When diagnosing DTC P0767, the following errors may occur:

  • Incorrect interpretation of data: Incorrect reading of data from a multimeter or scanner can lead to an incorrect interpretation of the condition of the electrical circuit or solenoid valve.
  • Insufficient connection checking: All electrical connections and wires associated with the ā€œDā€ solenoid valve and the PCM should be carefully checked. Failed or incomplete testing may result in missing the real problem.
  • Skip mechanical check: Sometimes the problem may be related to mechanical components, such as the valve itself or its control mechanism. Skipping this step may result in missing the cause of the problem.
  • Misinterpretation of PCM data: Misinterpretation of PCM data or insufficient testing of this component may result in incorrect diagnosis and replacement of functioning components.
  • Ignoring other error codes: Sometimes the problem may be related to other components, which may also generate their own error codes. Ignoring these codes may result in missing the root cause of the problem.

To successfully diagnose and resolve the P0767 trouble code, you must carefully follow each step, interpret the data correctly, and conduct a complete inspection of all components associated with the problem.

How serious is the fault code? P0767?

Trouble code P0767 indicates a problem with the shift solenoid valve ā€œD,ā€ which plays an important role in the operation of the automatic transmission. Although the vehicle may continue to drive, improper valve operation can result in poor performance, rough engine running, inefficient fuel use, and other problems. However, if the problem is not resolved, it can lead to more serious damage to the transmission or other vehicle systems. Therefore, code P0767 should be considered serious and requires careful attention.

What repair will help eliminate the code? P0767?

The following repairs are recommended to resolve DTC P0767:

  1. Checking the Electrical Circuit: First check the electrical circuit connecting the ā€œDā€ solenoid valve to the engine control module (PCM). Check the wires for damage, breaks or short circuits. Replace any damaged wires and repair connections.
  2. Solenoid Valve Replacement: If the electrical circuit is normal, the shift solenoid valve ā€œDā€ itself may be faulty. In this case, it is recommended to replace the valve with a new one.
  3. PCM Diagnosis: If the problem persists after replacing the solenoid valve, the engine control module (PCM) may need to be diagnosed. In some cases, the PCM may be faulty and require repair or replacement.
  4. Checking Other Components: It is also worth checking other components related to the operation of the transmission, such as throttle position sensors, speed sensors, pressure control valves and others.
  5. Programming and Software Updates: In some cases, updating the PCM software may help resolve the problem.

It is recommended that you contact a qualified auto mechanic or auto repair shop to perform this work, especially if you do not have experience working with automotive systems.

How to Diagnose and Fix P0767 Engine Code - OBD II Trouble Code Explain

P0767 ā€“ Brand-specific information

Trouble code P0767 relates to the transmission control system and can be found on various brands of cars, the interpretation for some of them is:

These are just some of the possible car brands that may display this trouble code. It is important to verify the specific make and model of your vehicle for accurate diagnosis and repair.

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