P0011 2005 TOYOTA HIGHLANDER - Camshaft Position 'A' Timing Over-Advanced or System Performance Bank 1
Low or Dirty Engine Oil
Variable Valve Timing (VVT) circuit is open or shorted
Oil Control Valve (OCV) circuit is open or shorted
Faulty variable valve timing (VVT)
Faulty oil control valve (OCV)
When is the code detected?
After the ECM sends the target dutyandcycle signal to the OCV, the ECM monitors the OCV current to establish an actual dutyandcycle. The ECM determines the existence of a malfunction and sets the DTC when the actual dutyandcycle ratio varies from the target dutyandcycle ratio.
Engine Light ON (or Service Engine Soon Warning Light)
Lack/Loss of power
Engine rough idle
P0011 2005 Toyota Highlander 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.