Toyota Tundra Service Manual: Inspection

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

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

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

OK:

If the result is not as specified, replace the camshaft timing 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.