P001C Fault Code

P001C OBD-II Trouble Code Short Description

A Camshaft Profile Control Circuit High Bank 1

What does trouble code P001C mean?

The P001C fault code refers to a Camshaft Profile Control Circuit High in Bank 1. This code indicates that there is an electrical problem in the control circuit of the camshaft timing system in the engine's bank 1.

The camshaft profile control circuit is responsible for adjusting the timing of the intake and exhaust camshafts, which plays a crucial role in the engine's performance and efficiency. When there is a high voltage detected in the circuit, it suggests a fault or malfunction.

The potential causes for this code can vary, but they commonly include:

  1. Faulty camshaft position sensor: The camshaft position sensor provides feedback to the engine control module (ECM) about the position of the camshaft. If the sensor is malfunctioning, it can generate a high voltage in the circuit.

  2. Wiring issues: Faulty or damaged wiring in the camshaft profile control circuit can cause a high voltage reading. This can be due to frayed wires, loose connections, or corrosion.

  3. ECM malfunction: A problem with the engine control module can cause incorrect readings or commands to be sent to the camshaft profile control circuit, resulting in a high voltage condition.

To diagnose and resolve the P001C fault code, a technician will typically perform the following steps:

  1. Inspection of wiring and connectors: The technician will visually inspect the wiring and connectors to check for any obvious signs of damage or loose connections. If any issues are detected, they will repair or replace the affected components.

  2. Testing the camshaft position sensor: Using a scan tool, the technician will check the readings from the camshaft position sensor to determine if it is functioning correctly. If the sensor is faulty, it will need to be replaced.

  3. Checking the ECM: If all other components check out, the technician may need to perform further testing on the engine control module to ensure it is working properly. If a malfunction is detected, the ECM may need to be repaired or replaced.

It is crucial to address the P001C fault code promptly as it can affect the engine's performance and fuel efficiency. Ignoring the issue can potentially lead to further damage to the engine. Therefore, it is recommended to have the vehicle inspected and repaired by a qualified technician to resolve the root cause of the problem.


What are the symptoms of the P001C code?

The P001C fault code in cars typically manifests itself with the following symptoms:

  • Illumination of the check engine light
  • Engine misfire or hesitation
  • Decreased engine performance
  • Engine stalls or struggles to start
  • Increased fuel consumption
  • Rough idling or vibrations
  • Loss of power while driving
  • Engine noise or ticking sound

Please note that these symptoms may vary depending on the make and model of the vehicle. It is advised to consult a professional mechanic for a proper diagnosis and repair.


What causes the P001C code?

The P001C fault code indicates a problem with the Camshaft Profile Control Circuit High for Bank 1. This code specifically relates to the intake camshaft on the bank of cylinders that includes cylinder #1. The possible causes for this fault code can include:

  1. Faulty camshaft position sensor.
  2. Faulty camshaft actuator or control solenoid.
  3. Wiring or connector issues in the camshaft control circuit.
  4. Engine oil flow or pressure problems.
  5. Timing chain or belt issues.
  6. Engine mechanical problems, such as a worn or damaged camshaft.

It is recommended to diagnose and fix the specific cause of the fault code by conducting a thorough inspection and testing of the camshaft control circuit and related components.

Possible Solutions

How to fix P001C?

Problem: P001C - A Camshaft Profile Control Circuit High Bank 1

Possible Causes:

  1. Faulty camshaft position actuator solenoid.
  2. Open or shorted camshaft position actuator solenoid circuit.
  3. Poor electrical connection in the camshaft position actuator solenoid circuit.
  4. Engine oil level or quality issues.


  1. Check the camshaft position actuator solenoid: Inspect the solenoid for any signs of damage or wear. If found faulty, replace it with a new one.
  2. Inspect the camshaft position actuator solenoid circuit: Check for any open or short circuits in the wiring. Repair or replace any damaged wires as necessary.
  3. Verify electrical connections: Ensure that all connections related to the camshaft position actuator solenoid are secure and free from corrosion. Clean or repair any faulty connections.
  4. Check engine oil level and quality: Low engine oil level or poor oil quality can affect the performance of the camshaft position actuator solenoid. Maintain the recommended oil level and quality as advised by the manufacturer.

Note: It is recommended to consult a professional mechanic or refer to the vehicle's service manual for specific instructions and accurate diagnosis.