Toyota Harrier ASU60/ASU65 Oil Pressure Sensor Wiring Diagram

[Roland.O]

This official diagram for the oil pressure sensor gives terminal assignments, connector D13 wire colours and complete circuit layouts. It's the OEM guide needed to safely test reference voltage lines, verify reliable ground tracks and isolate electrical engine monitoring faults from mechanical lubrication failures. Attempting to fix an active oil pressure warning light or sensor fault code without factory wiring paths has a high risk of misdiagnosis. This often leads to unnecessary engine tear downs and expensive oil pump replacement.

Common questions that this diagram answers​

1. What is the pinout chart for the oil pressure sensor D13 connector on a Toyota Harrier ASU60/ASU65?
2. How do I check for proper signal voltage at the oil pressure sensor switch on an ASU60/ASU65?
3. What are the factory wire colours for the oil pressure sensor harness on a Toyota Harrier 8AR-FTS?
4. How do you diagnose a low oil pressure warning light circuit fault without damaging the engine control unit on a Harrier ASU60/ASU65?

How to access the diagram​

Click on the link below to access the complete OEM Manual, within it you will find the Oil Pressure Sensor 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.