What the OBD-II code p0017 means

Fault code P0017 – a step-by-step guide to diagnosing and fixing it

The meaning of error code P0017 – Crankshaft Position–Camshaft Position Correlation (Bank 1, Sensor B)
P0017
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P0017: causes, symptoms and repairs

The meaning of fault code P0017

DTC P0017 is set when the signals from the car's crankshaft position (CKP) sensorand exhaust camshaft position (CMP) sensor on cylinder bank1 do not correlate with each other. This is usually when the position signals vary by more than 10 degrees. The crankshaft and camshaft are timed with precision and are supposed to operate in synchronisation. When they are out of sync, the fuel delivery, mixing and ignition processes are disrupted. It is therefore important to pay attention to this code.

What causes code P0017?

  • A stretched, worn or skipping engine timing beltor chain. This timing component keeps the crankshaft and camshaft moving in time with each other. It wears down over time and can skip a tooth or become misaligned. This problem could also be caused by a broken tensioner.
  • A faulty sensor or damaged wires. Both of the position sensors can fail or their timing discs can break, affecting the transmission of information to the car's ECU module. Wires can crack, fray or corrode, affecting the sensor and valve circuits.
  • Clogged oil channels or using the wrong kind of oil. If the oil isnt replaced on time or has the wrong viscosity, it can cause a blockage. This may reduce the oil pressure in the camshaft phaser, stopping it from functioning properly.
  • A jammed phaser solenoid. If the valve wont open, the fluid wont be able to flow to rotate the camshaft.
Possible symptoms

  • Decreased engine power and impaired acceleration
  • An increase in fuel consumption
  • A rough or erratic engine
  • Starting problems
  • Strange sounds while the power unit is running
Recommended repairs

  • Check the engine oil level and top it up if necessary. If the oil is too old or sludgy, you may need to flush the system before changing it. This will help to maintain the cam phaser’s hydraulic drive and the belt/chain tensioner.
  • Examine the CMP and CKP sensors, as well as the wiring harnesses attached to them. If the wires are visibly damaged or corroded, they will need to be replaced. Make sure there are no loose electrical connections. If the reluctor ring is missing teeth or worn, or the body of the device is defective, install a new sensor. Clean the contacts of the connectors using a special cleaning agent to remove contaminants and prevent further corrosion.
  • Depending on the type of device, you may be able to measure the resistance and voltage of the sensors using a multimeter to see whether they fall within the normal ranges. You can check the signal pattern using an oscilloscope. If the signal is weak or no pattern is showing, the cause is probably the reluctor ring.
  • Maintain, replace or adjust the components of the valve timing system. If the timing chain/belt is misaligned, check whether the tensioner is damaged. Install a new belt or chain if it is stretched or worn. Adjust the tension if necessary. You should also inspect the phaser solenoid for faults.
Frequently Asked Questions (FAQ)

What does the code “P0017” mean?


It means that the signals from the crankshaft and camshaft position sensors don’t match. The DTC is normally triggered when the control module detects a variation of more than 10 degrees.

How do I clear this error?


You can reset the codes by disconnecting the negative battery terminal for 15 minutes or using an OBD2 scan tool. If the DTC reappears after a short test drive, find the cause of the problem and repair the vehicle. Once it is fixed, you can clear the error using the diagnostic scanner.

Can I still drive my car if it appears?


It is possible to drive the vehicle for short periods of time but not recommended. The sooner the car is repaired, the easier it will be to avoid engine damage and regain efficiency.

Cars the fault code P0017 is most commonly found on

Fault code P0017 - Crankshaft Position–Camshaft Position Correlation (Bank 1, Sensor B) can occur with any car but is most often found on the following cars:

  • Ford: Focus, Fiesta
  • Mercedes: C180
  • Hyundai: I20
  • Vauxhall: Astra, Corsa
  • Citroen
  • Kia: Sportage

If you get the code P0017 on your car, make sure that the diagnostics are carried out correctly and the error is still relevant. Check for symptoms associated with the problem and explore options for resolving it.

What to do if the fault code p 0017 appears

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