April 5, 2026: LEMON Manuals is launched! Read the announcement.

Camshaft Timing Oil Control Valve Assembly: Inspection

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

Measure the resistance of the oil control valve.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

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

Fig 1: Identifying Camshaft Timing Oil Control Valve Assembly

G05183802

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Check the operation.
1. Apply battery voltage across the terminals and check that the spool valve operates.
  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.
  
  Fig 2: Identifying Battery Voltage Across Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002