Variable Valve Timing Actuator: Testing and Inspection

1NZ-FE ENGINE CONTROL SYSTEM: CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY: INSPECTION

INSPECTION

1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY





(a) Check the resistance.
(1) Measure the resistance between the terminals.
Standard resistance:
6.9 to 7.9 Ohms at 20 °C (68°F)
If the result is not as specified, replace the oil control valve assembly.





(b) Check the operation.
(1) Connect the positive (+) battery lead to terminal 1 and the negative (-) lead to terminal 2, and check the movement of the valve.
Standard:






If the result is not as specified, replace the oil control valve.
NOTE: If the valve does not return properly because of foreign matter intrusion, a small amount of leakage in the advanced direction may occur and a DTC may be output.