Camshaft Timing Oil Control Valve Assembly: Inspection

Standard resistance 

Fig 1: Identifying Resistance Between Oil Control Valve Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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 Camshaft Timing Oil Control Valve Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002