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B1602 Diagnostic Trouble Code Discussion for June 2007

PATS Received Invalid Format of Key Code From Ignition Key Transponder

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Trouble Ticket Help Requests for DTC B1602
Help Request Posted
1998 Ford Explorer Sport 4.0L No Start VIN: 1FMYU24E0W
B1602: PATS received invalid FMT/Key cd. Hoping someone has seen this before. I have a 1998 Explorer that has an intermittent no start condition due to the anti-theft system activating. This only occurs if the vehicle is parked in the sun on a warm, sunny day. Customer parks in a garage at home and i...
June 20, 2007