P003F Fault Code

P003F OBD-II Trouble Code Short Description

A Camshaft Profile Control Stuck On Bank 2

What does trouble code P003F mean?

The P003F fault code refers to "A Camshaft Profile Control Stuck On Bank 2" on cars. This code is specific to vehicles equipped with Variable Valve Timing (VVT) systems, which allow the engine to adjust the timing of the camshaft for optimal performance.

In this case, the fault code indicates that the camshaft profile control mechanism on Bank 2 (which typically refers to the side of the engine where cylinder 2 is located) is stuck in a single position. This means that the VVT system is not able to properly adjust the camshaft timing, leading to potential performance issues and reduced efficiency.

The solution to this problem typically involves inspecting and diagnosing the camshaft profile control mechanism on Bank 2. This may include checking the VVT solenoid or actuator, which is responsible for controlling the camshaft position. It is possible that the solenoid or actuator may be malfunctioning, jammed, or clogged with debris.

To resolve the issue, the faulty component may need to be replaced or repaired. Additionally, the VVT system should be thoroughly inspected to ensure there are no underlying issues causing the control mechanism to get stuck.

It's important to address this fault code promptly, as a malfunctioning camshaft profile control can negatively impact engine performance, fuel efficiency, and emissions. It is recommended to consult a professional technician or mechanic to diagnose and repair this issue properly.


What are the symptoms of the P003F code?

  • Check Engine Light (CEL) is illuminated
  • Decreased engine performance
  • Rough idling or misfires
  • Engine may stall or hesitate during acceleration
  • Poor fuel efficiency
  • Decreased overall engine power.


What causes the P003F code?

P003F is an OBD-II fault code that indicates a problem with the camshaft profile control on bank 2 of the engine. This fault code is typically caused by:

  1. Camshaft actuator - The actuator responsible for controlling the camshaft profile on bank 2 may be stuck in one position, preventing it from adjusting the valve timing properly.

  2. Wiring issues - There may be a problem with the wiring harness or connectors that connect the camshaft actuator to the engine control unit (ECU). This can result in a faulty signal being sent to the ECU, causing the fault code to be triggered.

  3. ECU malfunction - In some cases, the fault code may be caused by a malfunction in the ECU itself. This can occur due to software glitches or hardware failures.

  4. Mechanical issues - There may be mechanical issues with the camshaft or related components on bank 2, such as worn-out or damaged parts. These issues can prevent the camshaft from adjusting properly, leading to the fault code.

It is recommended to diagnose and repair this fault code as soon as possible, as it can affect the overall performance and fuel efficiency of the vehicle. It is advisable to consult a professional mechanic or use a diagnostic tool to accurately identify and address the underlying cause of the fault code.

Possible Solutions

How to fix P003F?

How to Fix P003F Fault Code

The P003F fault code refers to a Camshaft Profile Control stuck on Bank 2. This code typically indicates a problem with the variable valve timing (VVT) system on the intake camshaft on the second bank of cylinders.

To fix the P003F fault code, you can follow these steps:

  1. Check the oil level: Make sure the engine has the correct amount of oil and that it is clean. Low oil levels or dirty oil can affect the VVT system's operation.

  2. Inspect the VVT solenoid: The VVT solenoid controls the flow of oil to the VVT actuator. Check for any signs of damage, clogs, or debris. Clean or replace the solenoid as necessary.

  3. Inspect the VVT actuator: The VVT actuator is responsible for adjusting the camshaft position. Check for any signs of damage or sticking. Remove and clean the actuator if necessary.

  4. Check the wiring and connectors: Inspect the wiring and connectors for any signs of damage or corrosion. Make sure they are securely connected. Repair or replace any damaged components.

  5. Perform a reset: After completing the above steps, reset the fault code using a diagnostic tool or by disconnecting the battery for a few minutes. This will clear the code and allow you to see if the issue persists.

  6. Test and monitor: After resetting the code, monitor the vehicle and test its performance. Take note if the fault code returns or if any other issues arise. If the code persists, further inspection or assistance from a professional may be necessary.

It's important to note that these steps are general guidelines and may not apply to every vehicle or situation. For specific instructions, it's recommended to consult the vehicle's service manual or seek assistance from a certified mechanic.