AutoCodes – Scion – P0012 2005 Scion xB

P0012 2005 Scion xB 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 2005 Scion xB 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 10,820
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 03, 2020
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Code P0012 2005 Scion xB 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 2005 Scion xB - Camshaft Position 'A' Timing Over-Retarded Bank 1 - AutoCodes.com
P0012 2005 Scion xB Code - Camshaft Position 'A' Timing Over-Retarded Bank 1

What are the Possible Causes of the DTC P0012 2005 Scion xB?

  • 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 2005 Scion xB?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0012 2005 Scion xB 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.

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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 2005 Scion xB Code

1. What are the common symptoms of OBDII code P0012 in a 2005 Scion xB?

- Common symptoms include rough idling, reduced engine performance, engine misfires, and the illumination of the Check Engine Light.

2. What does the OBDII code P0012 'Camshaft Position 'A' Timing Over-Retarded Bank 1' mean for a 2005 Scion xB?

- This code indicates that the camshaft timing on Bank 1 is over-retarded, meaning the timing is out of specification.

3. What are the possible causes of OBDII code P0012 in a 2005 Scion xB?

- Possible causes include a faulty camshaft position sensor, a malfunctioning variable valve timing (VVT) solenoid, timing chain issues, or low engine oil levels.

4. How can I diagnose the cause of OBDII code P0012 in my 2005 Scion xB?

- Diagnosis typically involves checking the camshaft position sensor, inspecting the VVT solenoid, examining the timing chain for wear, and verifying proper engine oil levels.

5. Can I continue driving my 2005 Scion xB with OBDII code P0012 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further engine damage and potential safety issues. It's best to address the underlying problem promptly.

6. What are some repair tips for resolving OBDII code P0012 in a 2005 Scion xB?

- Repair tips may include replacing the camshaft position sensor, inspecting and possibly replacing the VVT solenoid, checking and potentially replacing the timing chain, and ensuring proper engine oil levels.

7. How much does it typically cost to repair OBDII code P0012 in a 2005 Scion xB?

- The cost of repairs can vary depending on the exact cause of the issue and whether it can be resolved by replacing a sensor or requires more extensive work like timing chain replacement. Costs can range from a few hundred to over a thousand dollars.

8. Can I reset the Check Engine Light after fixing OBDII code P0012 in my 2005 Scion xB?

- Yes, once the underlying issue triggering the code has been resolved, you can reset the Check Engine Light using an OBDII scanner or by disconnecting the car battery for a few minutes.

9. Are there any preventive maintenance measures to avoid OBDII code P0012 in a 2005 Scion xB?

- Regularly servicing your vehicle, checking and maintaining proper engine oil levels, and promptly addressing any engine performance issues can help prevent the occurrence of this code.

10. Will OBDII code P0012 cause permanent damage to the engine of a 2005 Scion xB if left unresolved?

- If left unresolved, OBDII code P0012 can potentially cause damage to engine components over time, leading to more extensive and costly repairs in the future. It's important to address the issue promptly.

Discuss the causes and fixes for P0012 2005 Scion xB OBDII Code

  • Love the info. Would love to have some info on how to repair issue as well.

  • What information do you need? The "Possible Causes" above show the repairs you should to fix the problem. For example an oil change should be first thing you should do.

  • And what if you have fixed ALL of those and the light still comes on?

  • If you have even replaced the Engine Control Module, then the next step is to replace the wire harness, you may have a broken wire, I haven't seen anything else triggering the code.

  • I will look at that this weekend! Thank you!

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