Definition of Code P0919
A fault code P0919 indicates that the vehicle’s Powertrain Control Module (PCM) has detected a discrepancy between the desired gear shift position and its reported position.
What does code P0919 mean?
The gear shift is the input that allows the user to control the vehicle’s engine power. In the case of a P0919 code, a PCM sensor has detected a malfunction in the gear shift’s ability to successfully handle the shift position.
What causes code P0919?
Faulty components in the transmission and corroded, broken, disconnected, or damaged wiring are the two most likely causes behind a P0919 fault code. Regarding faulty components, a misreading sensor can explain a P0919. This is especially likely if the practical symptoms of the code are mild or non-existent. In rarer cases, the PCM itself may be at fault. However, due to the high cost of replacing a PCM, it should only be considered after all other possible causes have been exhausted.
What are the symptoms of code P0919?
Although the severity of the error may differ from case to case, it is not uncommon for a P0919 gear shift error to result in the vehicle’s inability to shift gears. This will render the vehicle unusable.
How does a mechanic diagnose code P0919?
The P0919 code can first be identified by reading the code via an OBD-II scanner. From there, the sensors that initially recorded the fault should be checked for functionality. If the sensors themselves are working, carefully inspect the components related to the gear shift mechanism. All wiring and circuits related to the transmission should also be examined for any signs of corrosion, damage, or disconnection.
Common mistakes when diagnosing code P0919
Components related to the gear shift system may be mistakenly replaced if a faulty sensor is reporting a non-existent problem.
How severe is code P0919?
Since P0919 signals a clear error in the vehicle’s ability to properly control the gear shift position, it should be considered a very serious issue. In some cases, P0919 can render the vehicle unusable.
What repairs can fix code P0919?
- If the sensors are misreading a problem, they should be repaired or replaced based on the specifics of the issue.
- If there is nothing wrong with the sensors themselves, the components related to the gear shift mechanism must be checked, and any damaged or unresponsive parts should be repaired or replaced.
- All wiring should be inspected and repaired if necessary.
- After a set of repairs, the vehicle should be turned on and tested to see if the fault code recurs.
- In the rare cases where the PCM itself is faulty, it will need to be replaced. In this unlikely event, the associated control modules will also need to be reprogrammed.