AutoCodes – Volvo – P0012 Volvo

P0012 Volvo 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 Volvo 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.

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Code Popularity 5,534

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 01, 2021

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0012 Volvo Description

The Engine Control Module (ECM) controls the Oil Control Valve (OCV) to regulate the intake camshaft angle. As a result of the angle change, the engine timing is advance or retard. Optimizing engine timing will help the engine improve torque and fuel economy, and the exhaust emissions decrease under overall driving conditions. The Variable Valve Timing (VVT) system includes the Oil Control Valve (OCV) and VVT controller. The ECM detects the actual intake valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control.

OBDII Code P0012 Volvo - Camshaft Position 'A' Timing Over-Retarded Bank 1 - AutoCodes.com — P0012 Volvo Code - Camshaft Position 'A' Timing Over-Retarded Bank 1

What does this mean?

What are the Possible Causes of the DTC P0012 Volvo?

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 Volvo?

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 Volvo 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 Volvo code?

Need more information on how to fix the P0012 Volvo code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0012 Volvo code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0012 Volvo Code

1. What are the common symptoms of OBDII code P0012 in a Volvo?

The common symptoms of OBDII code P0012 in a Volvo include rough idle, poor engine performance, decreased fuel efficiency, and illuminated Check Engine Light.

2. What can cause the OBDII code P0012 to trigger in a Volvo?

The OBDII code P0012 in a Volvo is typically triggered by issues such as a faulty camshaft position sensor, problems with the camshaft timing, a stretched timing chain, or low engine oil levels.

3. How serious is the OBDII code P0012 in a Volvo?

While driving with the OBDII code P0012 in a Volvo may still be possible, it is not recommended as it can lead to further engine damage and potential safety hazards. It is advised to address the issue promptly.

4. Can I continue driving my Volvo with the OBDII code P0012?

It is not recommended to continue driving your Volvo with the OBDII code P0012 present, as it can lead to engine performance issues and potential damage. It is best to have the issue diagnosed and repaired as soon as possible.

5. How can I repair the OBDII code P0012 in my Volvo?

To repair the OBDII code P0012 in your Volvo, you may need to replace the camshaft position sensor, inspect and potentially adjust the camshaft timing, check the timing chain for wear, and ensure proper engine oil levels and quality.

6. Will resetting the Check Engine Light resolve the OBDII code P0012 in my Volvo?

Simply resetting the Check Engine Light may temporarily turn it off, but it will not fix the underlying issue causing the OBDII code P0012 in your Volvo. It is important to diagnose and address the root cause of the problem.

7. How can I prevent the OBDII code P0012 from occurring in my Volvo?

To prevent the OBDII code P0012 from occurring in your Volvo, it is essential to follow the manufacturer's recommended maintenance schedule, regularly check engine oil levels, and address any engine performance issues promptly.

8. Can a DIY enthusiast repair the OBDII code P0012 in a Volvo?

Depending on your skill level and access to tools, a DIY enthusiast may be able to address the OBDII code P0012 in a Volvo by replacing the camshaft position sensor or checking the camshaft timing. However, more complex repairs may require professional assistance.

9. How long does it typically take to repair the OBDII code P0012 in a Volvo?

The time required to repair the OBDII code P0012 in a Volvo can vary depending on the specific cause of the issue. Simple fixes like replacing the camshaft position sensor may take an hour or two, while more extensive repairs could take longer.

10. Is it necessary to visit a dealership for repairing the OBDII code P0012 in a Volvo?

While visiting a dealership for repairing the OBDII code P0012 in your Volvo is an option, it is not always necessary. Qualified independent mechanics or DIY enthusiasts with the right tools and knowledge can also effectively diagnose and repair the issue.