Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Camshaft Oil Control Valve: Inspection: Inspection
- INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
- Measure the resistance according to the value(s) in the table below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Component without harness connected
(Camshaft Timing Oil Control Valve Assembly)Standard Resistance
Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 6.9 to 7.9 Ω If the result is not as specified, replace the camshaft timing oil control valve assembly.
- Connect the positive (+) lead from a battery to terminal 2 and the negative (-) lead to terminal 1, and check the movement of the valve.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*1 Battery *2 Spool Valve *a Component without harness connected
(Camshaft Timing Oil Control Valve Assembly)*b When Applied *c When Cut Off OK
Tester Connection Condition Specified Condition 1 - 2 Battery positive (+) voltage is applied Valve moves in direction of left arrow shown in the illustration Battery positive (+) voltage is cut off Valve moves in direction of right arrow shown in the illustration If the result is not as specified, replace the camshaft timing oil control valve assembly.
NOTE:Accumulation of foreign matter can cause minor pressure leaks. Minor pressure leaks will cause the camshaft to advance or retard, and this will cause a DTC to be set.
- Measure the resistance according to the value(s) in the table below.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.