Engine

P001F — Camshaft Profile Control Circuit High (Bank 2)

Severity: medium Drive with care, to a shop

What P001F means

P001F means the engine control module detected an abnormally high voltage or signal in the 'A' camshaft profile control circuit on Bank 2. This circuit drives an actuator that adjusts valve timing or profile based on engine load and speed. When the signal goes out of range, the module can't control the system accurately and turns on the check engine light.

Symptoms

  • Check Engine light on
  • Reduced power and sluggish acceleration
  • Poor fuel economy
  • Rough idle or misfires
  • Abnormal throttle response

Possible causes

  1. Faulty camshaft profile actuator solenoid
  2. Wiring harness or connector faults: open, short, corrosion
  3. Wrong, dirty or degraded engine oil
  4. Faulty camshaft position sensor
  5. Internal PCM fault (rare)

How to diagnose

  1. Scan all codes and freeze frame data, clear the code and see if it returns
  2. Inspect the Bank 2 solenoid connector and harness for chafing, corrosion or oil intrusion
  3. Check oil level, condition and that it meets the manufacturer's specification
  4. Test the circuit for opens and shorts to power or ground, and verify supply voltage
  5. Measure solenoid resistance and compare it to spec
  6. Check the camshaft position sensor and its signal correlation with the crankshaft sensor
  7. Command the solenoid with a scan tool's active test and watch the response
  8. If everything checks out, evaluate the PCM and check for software updates

Common fixes

  • Repair or replace damaged wiring and connectors
  • Replace the camshaft profile actuator solenoid
  • Change the oil and filter using the specified oil
  • Replace the camshaft position sensor if it is faulty
  • PCM repair or reprogramming as a last resort

Questions and answers

What does P001F mean?

It means the 'A' camshaft profile control circuit on Bank 2 shows a signal that is too high. Wiring, the solenoid or the oil are the most common culprits.

Can I drive with P001F?

For a short time, yes, but power and fuel economy may suffer. Get it diagnosed soon, especially if the oil is overdue for a change.

Can old oil cause P001F?

Yes. The valve timing mechanism works on oil pressure, and dirty or wrong oil can disrupt the solenoid and set this code.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.