Camshaft Timing Oil Control Valve Assembly: Inspection

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

Measure the resistance between the terminals.

Fig 1: Measuring Resistance Between Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard resistance:

6.9 to 7.9 Ω at 20°C (68°F)

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

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

Fig 2: Identifying Battery'S Positive Lead To Terminal 1 And Negative Lead To Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Specified condition

SPECIFIED CONDITION 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.