Toyota Harrier ASU60/ASU65 Camshaft Timing Oil Control Valve Wiring Diagram

[Roland.O]

This OEM camshaft timing oil control valve wiring diagram gives the complete circuit layouts, wire colours and pinout mappings for both D53 and D71 actuator sockets. It gives you precise engineering maps needed to scope the duty cycle signals, test continuity and solve rough idle and timing-retard codes. Trying to diagnose VVT and oil control valve actuation faults without OEM procedures poses a high risk that can cause damage to the ECM.

Common questions that this diagram answers​

1. What is the pinout chart for the intake oil control valve D71 connector on a Toyota Harrier ASU60/ASU65?
2. How do I check the circuit resistance for the exhaust timing valve assembly D53 on a Harrier ASU60/ASU65?
3. Which ECM terminals drive the pulse-width modulated (PWM) signals to the Toyota Harrier 8AR-FTS oil control valves?
4. How do you isolate a wiring fault from a faulty mechanical solenoid in a Toyota Harrier ASU60/ASU65 variable valve timing network?

How to access the diagram​

Click on the link below to access the complete OEM Manual, within it you will find the Camshaft Timing Oil Control Valve Wiring Diagram. I have given the screenshot below to help you quickly navigate to the section where the diagram is located. Once you find it, you can then print or save it. Let me know if you face any challenges or have any questions and I will be happy to answer in the thread below. Please note that the year in the document is not the YOM but the document release date so it covers the entire model range. Also note the document applies to all countries where the model is sold Including Singapore, Australia, Malaysia, Kenya, UK, New Zealand, etc.