Is it safe to drive with this code?

Driving for extended periods is not typically advisable, as the engine may enter limp mode, lose power, or experience stalling—potentially creating unsafe conditions. See our disclaimer for further guidance on vehicle safety.

It may affect your MOT—what matters most is whether the malfunction indicator lamp is illuminated at the time of the test. For detailed requirements, please see our disclaimer.

Roughly how much does it cost to fix?

Costs can vary considerably depending on the underlying cause. A basic oil and filter change might fall in the low two-figure range, while solenoid or actuator replacement often sits in the low to mid three-figure bracket. More complex mechanical repairs involving variable valve timing components may reach the high three-figure or even four-figure range at a main dealer. Labour rates and parts availability differ between independent garages and franchised workshops.

Can I just clear the code and continue driving?

Clearing the code without addressing the root cause typically results in the code returning, and continued driving may lead to further engine damage or reduced performance. Diagnosis and repair are generally recommended.

Professional mechanic working in workshop

← All fault codes | Timing

P003F

Powertrain

A Camshaft Profile Control Circuit Stuck On Bank 2

The camshaft profile control system on bank 2 is stuck in the 'on' position, typically preventing the engine from adjusting valve timing as designed.

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ⓘ Information only. This page provides general educational information about fault code P003F. We do not assess the urgency or safety implications of any specific fault. That requires in-person diagnosis by a qualified mechanic. Full terms.

Recommended next steps

Whether a fault is urgent, drivable, or routine depends entirely on the cause on a specific vehicle, and that can only be determined by a qualified mechanic with diagnostic equipment. If a warning light is illuminated, the most reliable next step is professional diagnosis.

What does P003F mean?

P003F is a Powertrain (engine, transmission, fuel system) fault code. It indicates: A Camshaft Profile Control Circuit Stuck On Bank 2.

This is a standardised OBD-II code. The technical definition is the same regardless of the make or model of vehicle, although specific causes and symptoms can vary between vehicles.

About Timing codes

Timing codes relate to the variable valve timing (VVT) system, cam position, crank position, or the correlation between them. On engines prone to timing chain stretch (BMW N47, Ford EcoBoost, VAG TFSI), these codes often signal a stretched chain rather than a sensor fault.

P003F is one of 160 codes in this category. Browse all Timing codes →

What we know about P003F specifically

We record the SAE J2012 standardised definition and the system this code belongs to, but we have not yet published detailed driver-reported symptoms, common causes, or step-by-step diagnostic guidance for P003F.

Rather than invent that information by generating generic content from a template, we leave it out. For specific guidance, the most reliable sources are:

•your vehicle's own service manual or manufacturer-specific technical bulletins
•a qualified mechanic with a manufacturer-level diagnostic tool
•a marque specialist familiar with your make and model

Codes nearby

Codes adjacent to P003F in the P-code series. Many fault codes appear together with their neighbours because they relate to the same circuit or component.

P003C A Camshaft Profile Control Circuit Performance/Stuck Off Bank 1

P003D A Camshaft Profile Control Circuit Stuck On Bank 1

P003E A Camshaft Profile Control Circuit Performance/Stuck Off Bank 2

P0040 O2 Sensor Signals Swapped Bank 1 Sensor 1 / Bank 2 Sensor 1

P0041 O2 Sensor Signals Swapped Bank 1 Sensor 2 / Bank 2 Sensor 2

P0042 HO2S Heater Control Circuit (Bank 1 Sensor 3)

Other Timing codes

Other fault codes in the same system as P003F. The ones with detailed guides have plain-English explanations, symptoms, causes, and diagnostic steps.

P0010

"A" Camshaft Position Actuator Circuit (Bank 1) Detailed guide

P0011

"A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) Detailed guide

P0012

"A" Camshaft Position - Timing Over-Retarded (Bank 1) Detailed guide

P0014

"B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) Detailed guide

P0016

Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) Detailed guide

P0017

Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B) Detailed guide

Spotted an issue or have something to add? Mechanics, technicians, and drivers who have first-hand experience with P003F can submit a correction or expansion. We review every submission before publishing, mechanic submissions are prioritised.

Information only, not professional advice

The information on this page is provided for general guidance and educational purposes only. It is not a substitute for diagnosis or repair advice from a qualified mechanic. Always verify any fault before paying for repairs. carfaultcodes.co.uk accepts no liability for decisions made based on this information. Full terms →

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