Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
There is a Factory Service Bulletin for following Scion models.
2005-2006 Scion xA
2005-2006 Scion xB
Scion Factory Service Bulletin OBDII Code P0016
To diagnose the P0016 Scion code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to 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.
Need more information on how to fix the P0016 Scion code? Get Access to Factory Service Manuals
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