OBD port not working

2005 HYUNDAI ELANTRA
86,000 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC
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COYE DENNY
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  • 2 POSTS
Plug it in and nothing . checked hot nothing.
Dec 11, 2020 at 8:40 AM
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KASEKENNY
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When you say it does nothing, does it even power on?

We need to start by checking power at pin 9 on the DLC. So use a meter and put your red lead on pin 9 and the black lead on pin 4 then 5. You should have 12 volts.

Then we need to check your scan tool and make sure it is functioning on other vehicles.

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Let us know what questions you have. Thanks
Dec 11, 2020 at 10:43 AM
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COYE DENNY
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No juice at those pins. checked reader plugged it into another car worked fine . what to do now?
Dec 11, 2020 at 10:55 AM
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KASEKENNY
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No power at those pins then I suspect you have a fuse issue. In the passenger compartment check fuse 25 and make sure it is not blown.

Here is a guide on checking both sides of the fuse for power:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If this is fine then we have a wiring issue between this fuse and the DLC. Is there any history to this? Meaning were there wiring repairs or anything done to it recently?
Dec 12, 2020 at 6:28 AM