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P0703 Diagnostic Trouble Code Discussion for May 2013

Brake Switch Circuit 2 Malfunction

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Trouble Ticket Help Requests for DTC P0703
Help Request Posted
2008 Ford F-350 Super Duty XL 6.4L Excessive Emissions VIN: 1FTWW33R88
P0703: Brake switch. Thanks in advance for any input. Customer complaint is excessive black smoke from tailpipe. No contribution issues and no drivability issues. Fuel trim data at idle cyl 1 10.0 cyl 2 15.0 cyl 3 5.0 cyl 4 -1.0 cyl 5 -1.0 cyl 6 -5.0 cyl 7 -16.0 cyl 8 -6.0. Off id...
May 29, 2013