which fuse for the OBD2 data port?

2010 TOYOTA RAV4
150,000 MILES • 3.5L • 6 CYL • 4WD • AUTOMATIC
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BRUTOO61
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Vehicle OBD system is unresponsive. ECU fuse powers OBD system. The fuse is good and everything is working. Which port on the OBD plug is supposed to be hot?
Dec 11, 2024 at 6:24 AM
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STRAILER
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The two brown wires on the connector are ground so I would check those along with the power source. This guide can help you check the power and ground connections. Also, check for power at the OBD fuse 7.5 amp. The blue wire in the connector is power.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Also, check the code reader on another car to make sure it works. Check out the images (below). Let us know how it goes.
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Dec 11, 2024 at 12:12 PM
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BRUTOO61
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Everything checked out okay after cleaning the connector with an electrical cleaner.
Jan 18, 2025 at 7:54 AM
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STRAILER
  • ✓ASE Certified Mechanic
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So the problem is fixed or?
Jan 18, 2025 at 10:32 AM
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