P0012 Code - Camshaft Position 'A' Timing Over-Retarded Bank 1
Quick Answer
The Engine Control Module (ECM) controls the Oil Control Valve (OCV) to regulate the intake camshaft angle. Common causes include Low or Dirty Engine Oil, Faulty variable valve timing (VVT), Faulty oil control valve (OCV). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0012 indicates Camshaft Position 'A' Timing Over-Retarded Bank 1.
- Common causes
- Common causes include Low or Dirty Engine Oil, Faulty variable valve timing (VVT), Faulty oil control valve (OCV).
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0012 Description
What are the Possible Causes of the DTC P0012?
- Low or Dirty Engine Oil
- Faulty variable valve timing (VVT)
- Faulty oil control valve (OCV)
- Variable Valve Timing (VVT) harness is open or shorted
- Oil Control Valve (OCV) harness circuit is open or shorted
- Damaged ECM
How to Fix the DTC P0012?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0012 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0012 code?
Need more information on how to fix the P0012 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0012 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P0012 Audi — 'A' Camshaft Position Timing Over Retarded Bank 1
- P0012 BMW — 'A' Camshaft Position Timing Over-Retarded Bank 1
- P0012 Ford — 'A' Camshaft Position Timing Over-Retarded Bank 1
- P0012 Hyundai — 'A' Camshaft Position- Timing Over-Retarded Or System Performance- Bank 1
- P0012 Infiniti — Intake Valve Timing Control Performance Bank 2
- P0012 KIA — 'A' Camshaft Position- Timing Over-Retarded Or System Performance- Bank 1
- P0012 Lexus — Camshaft Position 'A' Timing Over-Retarded Bank 1
- P0012 Lincoln — 'A' Camshaft Position Timing Over-Retarded Bank 1
- P0012 Mazda — CMP Timing Over Retard Right side
- P0012 Mercedes-Benz — 'A' Camshaft Position Timing Over Retarded Bank 1
- P0012 Mercury — 'A' Camshaft Position Timing Over-Retarded Bank 1
- P0012 MINI — 'A' Camshaft Position Timing Over-Retarded Bank 1
- P0012 Mitsubishi — Camshaft Position Timing Over-Retard
- P0012 Nissan — Intake Valve Timing Control Performance Bank 2
- P0012 Scion — Camshaft Position 'A' Timing Over-Retarded Bank 1
- P0012 Toyota — Camshaft Position 'A' Timing Over-Retarded Bank 1
- P0012 Volkswagen — 'A' Camshaft Position Timing Over Retarded Bank 1
- P0012 Volvo — Camshaft Position 'A' Timing Over-Retarded Bank 1
Frequently Asked Questions about P0012 Code
1. What are the common symptoms of OBDII code P0012?
- Common symptoms include rough idling, decreased engine performance, engine misfires, and potentially stalling.
2. What causes OBDII code P0012 to trigger?
- The code is usually triggered by a camshaft position sensor or actuator that is not functioning correctly, leading to over-retarded timing in Bank 1.
3. How do I repair OBDII code P0012?
- Repair typically involves inspecting and replacing the camshaft position sensor, camshaft position actuator, or timing chain components if necessary.
4. Can a dirty engine oil cause OBDII code P0012?
- Yes, dirty or low-quality engine oil can affect the performance of the camshaft position components and potentially trigger code P0012.
5. Is it safe to continue driving with OBDII code P0012 present?
- It is not recommended to drive with this code present as it can lead to further engine damage and potential safety risks.
6. Can a faulty timing chain be the cause of OBDII code P0012?
- Yes, a faulty timing chain that affects the camshaft timing can be a potential cause of code P0012.
7. How can I prevent OBDII code P0012 from recurring?
- Regular maintenance, including timely oil changes using the correct grade of oil, can help prevent the recurrence of this code.
8. Will resetting the OBDII code P0012 resolve the issue?
- While resetting the code may temporarily turn off the check engine light, it will not fix the underlying issue causing code P0012.
9. Can a mechanic diagnose OBDII code P0012 with specialized equipment?
- Yes, a mechanic can use diagnostic tools to pinpoint the exact cause of code P0012 and recommend the appropriate repairs.
10. Are there any recalls related to OBDII code P0012 for specific vehicle models?
- It is recommended to check with the vehicle manufacturer or authorized service center for any recalls related to code P0012 for your specific vehicle model.
Discuss the causes and fixes for P0012 OBDII Code
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
