Camshaft Oil Control Valve: Inspection

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

Resistance inspection

Using an ohmmeter, measure the resistance between the terminals.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
1-2	20°C (68°F)	8.9 to 7.9 Ω

If necessary, replace the camshaft oil control valve assembly.

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.
  NOTE: Confirm that the valve moves freely and does not stick in any position.
  
  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.
  
  Fig 1: Identifying Positive Lead Battery To Terminal 1 And Negative Lead To Terminal 2
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002