Variable Valve Timing Actuator: Testing and Inspection

INSPECT OIL CONTROL VALVE RESISTANCE







a. Remove the No. 2 cylinder head cover.

b. 2ZZ-GE:
Disconnect the 2 PCV hoses.

c. Disconnect the oil control valve connector.
d. Using an ohmmeter. measure the resistance between the terminals.

Resistance: 6.9 - 7.9 Ohm at 20 °C (68 °F)

If the resistance is not as specified, replace the valve.

e. Reconnect the oil control valve connector.
f. Reinstall the V-bank cover.












INSPECT CAMSHAFT OIL CONTROL VALVE OPERATION
Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.

If operation is not as specified, replace the valve.