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Q: what is OBD 2 not communicating with vehicle onboard computer? on 2003 Toyota Sienna

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I need inspection cert and after visiting auto center they mention Obd 2 analyzer did not communicate during diagnostic test. i recently got check engine fixed for o2 sensors.
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Check all fuses... But most likely the shop's equiptment was the issue.

Check to see if when you turn the key to the on position, does the check engine light come on the dash? If it does you know that the computer is getting it's powers and grounds.

You can also look at the 16 pin OBD connector (located under the steering wheel area) and make sure that the pins are not bent or damaged.

Let me know what happens,

Eric Sevim - ASE Master Certified Technician
A+ Japanese Auto Repair - San Carlos CA 94070
http://www.aplusjapaneseautorepair.com/
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