Inspection

3MZ-FE ENGINE CONTROL SYSTEM: CAMSHAFT OIL CONTROL VALVE: INSPECTION

1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

(a) Resistance inspection

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

Standard resistance:





(2) If necessary, replace the camshaft oil control valve assembly.

(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.

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

(2) If necessary, replace the camshaft oil control valve assembly.

HINT
Accumulation of foreign objects causes subtle pressure leaks. The subtle pressure leaks will cause the cam to advance, and this will cause a DTC to be set.