P001F OBD-II Trouble Code: “A” Camshaft Profile Control Circuit High

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P001F code definition

The P001F code indicates a problem with the timing in your engine.

What the P001F code means

This PCM code means that the signals that are moving between the crankshaft and the camshaft are not in proper timing. When this occurs, you will experience difficulty with your vehicle’s performance. The PCM will store trouble code P001F, and activate the Check Engine Light.

What causes the P001F code?

The P001F code can be caused by:

  • A bad crankshaft sensor
  • A bad camshaft sensor
  • Bad wiring going to the camshaft sensor
  • Missing teeth in the timing belt
  • A broken or loose timing chain tensioner

What are the symptoms of the P001F code?

With a P001F code, you may not notice any problems right away. Eventually, though, you will experience problems with the performance of your vehicle. You may find that your vehicle lacks power, the engine cranks but does not turn over, or that the engine runs poorly. You will also see the Check Engine light come on.

How does a mechanic diagnose the P001F code?

First, your mechanic will use a scanner to identify the trouble codes that have been recorded by the PCM. Then, he or she will check for breaks, corrosion, or shorts in the wiring, and also examine the crankshaft pulley and timing belt or chain to ensure that there are no breaks, missing teeth or stretched areas that could be causing the trouble code.

Your mechanic will do any needed repairs, and then take the vehicle for a test drive. Finally, he or she will use the scanner again to see if the trouble codes reappear. If they do, further diagnostics will be needed and further repairs may be necessary.

Common mistakes when diagnosing the P001F code

Sometimes, a mechanic will go straight to replacing the timing belt or chain before checking the camshaft sensor. Another mistake is not checking to see if the timing belt or chain has become stretched, or if there are breaks.

How serious is the P001F code?

If you are just driving around town at low speed, the problems that are identified by the P001F code are not all that problematic. They are, however, going to be inconvenient, and adversely affect your driving. If you are driving on the highway and need to perform fast maneuvers like passing or changing lanes, then problems with your timing could be deadly. This is something that you should get checked out at your earliest convenience for the sake of your safety and that of others who may be traveling with you.

What repairs can fix the P001F code?

You may need to have your timing belt or chain, or your camshaft sensor replaced. There could also be damage to the wires that go to the camshaft sensor, in which case they will also need to be replaced. Sometimes, the crankshaft pulley may have been damaged, and it will also have to be replaced.

Additional comments for consideration regarding the P001F code

A mechanic may need a bit of time to properly diagnose this code. All the parts of the camshaft sensor have to be checked out, and the crankshaft pulley needs to be examined as well. Before replacing the sensor, the wiring and connector should always be checked, and the patterns that the crankshaft and camshaft are exhibiting should be carefully evaluated in order to ensure a proper, accurate diagnosis.

Need help with a P001F code?

YourMechanic has qualified mechanics on staff who will be happy to come to your home or your office to diagnose any problems that you are having with your vehicle. Call us at 1-800-701-6230 to arrange for an appointment, or if you prefer, use our convenient online form. Our mechanics are ready and waiting to help you with all your vehicle maintenance and repair needs.


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