CEL and ODBll Will Not Read Codes ????
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Tuned
Joined: Jul 2004
Posts: 335
Likes: 5
From: Las Vegas
CEL and ODBll Will Not Read Codes ????
Today I am driving to work and the CEL comes on in my 2003 6.0, after work I stop by the autozone to get the code read and figure out the issue, when they plug in the ODBll scanner it will not read at all.
Anyone had this happen ? The autozone guy says he has seen this before and it is / was a fuse or a relay that has functions that related to the ODBll port.
Anyone ever have this happen ? Any thoughts ?
Thanks
Anyone had this happen ? The autozone guy says he has seen this before and it is / was a fuse or a relay that has functions that related to the ODBll port.
Anyone ever have this happen ? Any thoughts ?
Thanks
Posting Guru
Joined: Dec 2006
Posts: 1,078
Likes: 0
From: Kansas City/Breckenridge
The crappy autozone scanner doesn't scan everything that will throw a code. It's handy if it will but just often isn't the case.
See if your dealer wouldn't mind scanning it for you.
See if your dealer wouldn't mind scanning it for you.
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
The scanner must be able to read CAN codes also. I was just at a local parts store. First scanner worked fine it said CAN-OBDII on it. He brought out a second one to test if it would read "live" PCM readings. It couldn't recognize the vehicle. It was OBDII only.
Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
That would be true if the device didn't even power up. If it powered up, but couldn't read anything, then their device can't read the CAN protocal. To read our trucks, you have to have more sophisticated code readers. Even if theirs did read your truck's computer, it would more then likely just be pulling from the generic powertrain, which is typically emissions related only.
Laughing Gas
Joined: May 2005
Posts: 1,082
Likes: 1
From: Illinois
I have seen this before. As others have stated above, that scanner probably read the generic codes. A tool such as Autoenginuity with the Ford add-on does a much better job.
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I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
The fuse # on my 04 is #12.(for the OBD port) If it didn't power up at all. The scanner from yesterday on my truck read "No vehicle found"
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