There are factory service bulletins for the following Toyota models:
2005 Toyota Corolla
2006 Toyota Corolla
2007 Toyota Corolla
2005 Toyota Matrix
2006 Toyota Matrix
2007 Toyota Matrix
2005-2007 Toyota Corolla, Matrix Factory Service Bulletin OBDII Code P0016
2005 Toyota Camry
2006 Toyota Camry
2007 Toyota Camry
2005-2007 Toyota Camry Service Bulletin OBDII Code P0016
Check 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 pins.
The cost to diagnose the P0016 Toyota code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
In the Variable Valve Timing (VVT) system, the appropriate intake and exhaust valve open and close timing is controlled by the Engine Control Module (ECM). The ECM performs intake and exhaust valve control by performing the following: 1) controlling the camshaft and camshaft timing oil control valve assembly and operating the camshaft timing gear; and 2) changing the relative positions of the camshaft and crankshaft. To monitor the correlation of the intake camshaft position and crankshaft position, the ECM checks the VVT learned value while the engine is idling. The VVT learned value is calibrated based on the camshaft position and crankshaft position. The intake valve timing is set to the most retarded angle while the engine is idling. If the VVT learned value is out of the specified range in consecutive driving cycles, the ECM illuminates the MIL and stores Diagnostic Trouble Code (DTC) P0016.
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