Obd2 no communication

2004 FORD EXPEDITION
175,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC
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MATTHEW SMITH
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To start off the OBD2 port is getting power fuses were checked and okay, but I am not getting communication with the computer the scanner gets power but no communication tried AutoZone and Advanced Auto Parts without any luck, but when I went to eat check this year and plugged it in that one worked but no other scanner will work.
Sep 12, 2016 at 3:23 PM
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HMAC300
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that happens with scanners some work other's do not auto parts ones get used heavily so that may be problem or a poor connection.
Sep 12, 2016 at 3:37 PM
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MATTHEW SMITH
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My own personal scanner wont work either.
Sep 12, 2016 at 9:30 PM
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HMAC300
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if one will work then it is a connection either on scanner or aldl. if there is power there it may be another pin causing the problem. try dielectric grease see if that works.
Sep 13, 2016 at 6:51 AM
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MATTHEW SMITH
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I even removed all wires and plugs from port and put in corresponding post on my scanner and still nothing.
Sep 13, 2016 at 7:01 AM
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HMAC300
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have you checked fuses under hood sometimes these are connected to fuses. Other than that then one of the wires or a few have a short in it or there is a can bus problem causing this.
Sep 13, 2016 at 9:17 AM
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HMAC300
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a professional will have to check for a can/bus problem which maybe his scanner will work on it.
Sep 13, 2016 at 9:18 AM