Inspection
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSYa. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
If the resistance is not as specified, replace the camshaft timing oil control valve.
b. Check the operation.
1. Connect the positive (+) lead from the battery to terminal 2 (+) and negative (-) lead to terminal 1 (-), then check the movement of the spool valve.
NOTE: Confirm that the spool valve moves freely and does not get stuck in any position.
HINT: Bad returning of the spool valve resulted from catching foreign objects causes subtle pressure leak to the advanced direction. In that case, DTC can be detected.