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

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

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

P0012 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.
OBDII Code P0012 - Camshaft Position 'A' Timing Over-Retarded Bank 1 - Engine-Codes.com

P0012 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 MAZDA CMP Timing Over Retard Right side
  • 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

Related Information