I tried to connect to read my check engine code, but it does not want to connect. I tried with two scanners and still does not want to connect.
Jan 7, 2019 at 9:30 AM
Cannot connect the scan to my car
2007 SUBARU LEGACY
JAKE09
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Hi and thanks for using 2carpros.com
What I need you to do is first check for power to the DLC as well as ground. On any DLC connector I have ever seen, pin 16 is battery voltage. That is industry standard. So, with a test light, confirm that it is getting power. Pin 8 is powered when the key is on.
Now, Pin 4 is chassis ground and 5 is signal ground. Test for continuity between those pins and a known ground.
I attached pics of the wiring of the DLC and added another pic of the power supply fuses. If there is no power to the aforementioned pin (16) check fuses.
Here are a couple links that you may find helpful.
https://www.2carpros.com/articles/how-to-use-a-voltmeter
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
https://www.2carpros.com/articles/how-to-check-wiring
Let me know what you find.
Joe
What I need you to do is first check for power to the DLC as well as ground. On any DLC connector I have ever seen, pin 16 is battery voltage. That is industry standard. So, with a test light, confirm that it is getting power. Pin 8 is powered when the key is on.
Now, Pin 4 is chassis ground and 5 is signal ground. Test for continuity between those pins and a known ground.
I attached pics of the wiring of the DLC and added another pic of the power supply fuses. If there is no power to the aforementioned pin (16) check fuses.
Here are a couple links that you may find helpful.
https://www.2carpros.com/articles/how-to-use-a-voltmeter
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
https://www.2carpros.com/articles/how-to-check-wiring
Let me know what you find.
Joe
Images (Click to enlarge)
Jan 7, 2019 at 6:42 PM