P0012 2010 TOYOTA CAMRY - Camshaft Position 'A' Timing Over-Retarded Bank 1
Tech notesThere is a factory service bulletin for the following Toyota models:
2007 Toyota Camry Service Bulletin
2007 Toyota Camry Service Bulletin OBDII Code P0012
When is the code detected?After the ECM sends the target duty cycle signal to the OCV, the ECM monitors the OCV current to establish an actual duty cycle. The ECM determines the existence of a malfunction and sets the DTC when the actual duty cycle ratio varies from the target duty cycle ratio.
P0012 2010 Toyota Camry DescriptionThe 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.
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