Variable Valve Timing Actuator: Testing and Inspection

INSPECTION

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

a. Resistance inspection.
1. Using an ohmmeter, measure the resistance between the terminals.

Resistance: 6.9 to 7.9 Ohms at 20°C (68°F)




b. Movement inspection.
1. Connect the battery positive (+) lead to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.

NOTE: Confirm the valve moves freely and does not stick in any position.

HINT: Foreign objects in the oil can cause subtle pressure leaks in the valve. The pressure leak will cause the cam to advance. This condition will usually set a DTC.