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scanner prob.

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Old 05-02-2011, 09:20 PM
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scanner prob.
04 f150 4.6ltr i cant get into the system with a scanner tried 2 diff. ones. It says unable to communicate with vehicle any ideas what would cause this?
 
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Old 05-03-2011, 07:08 AM
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Usually a blown fuse for the OBD-II port, which is the same as the Cigar lighter.
 
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Old 05-03-2011, 09:14 PM
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well what if both lighters work? then it cant be the fuse?
 
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Old 05-03-2011, 09:35 PM
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Check to see if your scanner is CAN-capable. The 2004 trucks switched from the old communications protocol to CAN making older scanners obsolete.
 
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Old 05-04-2011, 12:42 AM
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Originally Posted by briansadlon
well what if both lighters work? then it cant be the fuse?
Both lighters ?? There is 1 Cigar lighter and 1 power point, and they are on 2 different fuses.

projectSHO89 makes a good point.
 
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