Join Now
International Automotive Technicians Network

B1602 Diagnostic Trouble Code Discussion for November 2012

PATS Received Invalid Format of Key Code From Ignition Key Transponder


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC B1602
Help Request Posted
1997 Ford Expedition Eddie Bauer 4.6L No Start VIN: 1FMEU18WXV
B1602: Invalid format key code from ignition key transponder. ... crank but no start condition. Client left home, got about 4 miles and vehicle quit. Got it into shop tested fuel pressure, intermittently 0 - 20 psi, fuel filter partially plugged, replaced fuel pump, filter, and relay. Still doesn't start, scanned for cod...
November 16, 2012
1997 Ford Expedition Eddie Bauer 4.6L No Start VIN: 1FMEU18WXV
B1602: Invalid format key code from ignition key transponder. ... crank but no start condition. Client left home, got about 4 miles and vehicle quit. Got it into shop tested fuel pressure, intermittently 0 - 20 psi, fuel filter partially plugged, replaced fuel pump, filter, and relay. Still doesn't start, scanned for cod...
November 16, 2012