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Toyota Workshop Service and Repair Manuals

Tune-up and Engine Performance Checks > < Timing Cover|Service and Repair
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Variable Valve Timing Actuator: Testing and Inspection

CAMSHAFT TIMING OIL CONTROL VALVE ASSY

a. Resistance inspection.

1. Using an ohmmeter, measure the resistance between the terminals.

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

b. Movement inspection.

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

NOTE:  Confirm the valve does not adhere.

HINT:  Bad returning of the valve by entrance of foreign objects causes subtle pressure leak to the advanced direction. Then, DTC can be
detected.

Tune-up and Engine Performance Checks > < Timing Cover|Service and Repair