Camshaft Timing Oil Control Valve Assembly: Inspection

WARNING: This page is about a different variant/trim than selected.

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

Measure the resistance of the oil control valve.

Standard resistance

CONNECTOR TERMINALS RESISTANCE REFERENCE AND CONDITION

Tester Connection	Specified Condition
1 (+B) - 2 (GND)	6.9 to 7.9 Ω at 20°C (68°F)

Fig 1: Inspecting Camshaft Timing Oil Control Valve Assembly

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Check the operation.

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

OK: Go TO NEXT STEP.

BATTERY REFERENCE AND INFORMATION

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

Fig 2: Checking Operation - Spool Valve

NOTE: Check that the spool valve is not stuck.

HINT:

The spool valve may not return if foreign objects are caught in it. This may cause subtle pressure leaks to the advance side, and a DTC may be set.