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 assembly.

Fig 1: Measuring Resistance Between Camshaft Timing Oil Control Valve Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

TERMINALS REFERENCE CHART

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

If the result is not as specified, replace the oil control valve assembly. If the valve cannot return properly because of foreign matter, a small pressure leak in the advanced direction may occur and a DTC may be output.

Fig 2: Checking Camshaft Oil Control Valve Operation