3. Check Intake Valve Timing Control Solenoid Valve Output Signal Circuit For Open And Short

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following;

   ECM terminal 152 and intake valve timing control solenoid valve (bank 1) terminal 1 or

   ECM terminal 155 and intake valve timing control solenoid valve (bank 2) terminal 1.

   Refer to Wiring Diagram.

   1. Continuity should exist. 
4. Also check harness for short to ground and short to power.

OK or NG 

OK : GO TO 4.

NG : Repair open circuit or short to ground or short to power in harness or connectors.