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What is On Board Diagnostic?

Old 11-05-2007, 09:22 PM
civic_burns_all's Avatar
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Default What is On Board Diagnostic?

I seem to notice, there is a lot of reference to OBD I and OBD II in this forum and the camaro forum when answering a lot motor and ecu questions. But being a noob, I never really know what it means. There really isn't any information in site that really explain it.

What is the difference between OBD0, OBD1, OBD2?

This website also helps though
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Old 11-06-2007, 12:14 AM
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Default RE: What is On Board Diagnostic?

Its a diagnostic program that the car runs. The ecuusessensors to monitor for problems and if it finds one it will throw a check engine light. So now the mechanic or you can go in and ask the ecu where the problem is. I think that OBD2/OBD2A/B are just more advanced diagnostic programs.

Anyway, I think thats what it is all about, I may be a bit off.
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