Camshaft Oil Control Valve: Inspection

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

Measure the resistance according to the value(s) in the table below

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1 - 2	20°C (68°F)	6 9 to 7 9 Ω

If the result is not as specified, replace the oil control valve

Fig 1: Identifying Camshaft Timing Oil Control Valve Assembly Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

SPECIFIED CONDITION CHART

Condition	Specified Condition
Battery positive (+) voltage is applied	Valve moves in left arrow direction shown in illustration
Battery positive (+) voltage is cut off	Valve moves in right arrow direction shown in illustration

If the result is not as specified, replace the oil control valve

Fig 2: Checking Movement Of Valve

NOTE: Do not allow foreign matter to contact the oil seal face of the oil control valve (the surface that contacts the cylinder head cover sub-assembly).

HINT

If the valve cannot return properly because of foreign matter, a small pressure leak in the advance direction may occur and a DTC may be stored