Engine-Codes - Generic - P0012

P0012 - Camshaft Position 'A' Timing Over-Retarded Bank 1

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0012 Possible Causes

  • 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 is the P0012 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P0012 code

Labor: 1.0

The cost to diagnose the P0012 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0012 Meaning

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.

More Information

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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 Variable Camshaft 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 Variable Camshaft 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 Variable Camshaft 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

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