What's the Toyota fault code 39?

The Toyota fault code 39 has the abbreviated meaning of "VVT-i system", which is about as helpful as poking Your finger through toilet paper. However, You can croSSReference it with an actual OBD-II code, P1656, which translates to Oil Control Valve Circuit Malfunction. Some common causes for this, then, are going to be a faulty oil control valve, or one where the engine harness is open or shorted, has a poor electrical connection, or where the engine control module itself has a fault. Symptoms will typically be the check engine light (CEL) illuminating and Your Toyota failing to start at all.