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P1260 Diagnostic Trouble Code Discussion for October 2007

Immobilizer System Malfunction


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Trouble Ticket Help Requests for DTC P1260
Help Request Posted
1999 Ford F-150 Lariat 5.4L Cuts out, Stall VIN: 1FTRX18L6X
P1260: Anti theft system activated. ... the road test after repairs. Without cycling the key off, the truck would crank but not start. Code P1260 was set in the PCM and U1262 in the cluster. (All codes were cleared before road test.) Once I cycled the key off, the truck started ok. When I got ba...
October 22, 2007
1999 Ford F-150 Lariat 5.4L Cuts out, Stall VIN: 1FTRX18L6X
P1260: Anti theft system activated. ... the road test after repairs. Without cycling the key off, the truck would crank but not start. Code P1260 was set in the PCM and U1262 in the cluster. (All codes were cleared before road test.) Once I cycled the key off, the truck started ok. When I got ba...
October 24, 2007
1999 Ford F-150 Lariat 5.4L Cuts out, Stall VIN: 1FTRX18L6X
P1260: Anti theft system activated. ... the road test after repairs. Without cycling the key off, the truck would crank but not start. Code P1260 was set in the PCM and U1262 in the cluster. (All codes were cleared before road test.) Once I cycled the key off, the truck started ok. When I got ba...
October 22, 2007
1999 Ford F-150 Lariat 5.4L Cuts out, Stall VIN: 1FTRX18L6X
P1260: Anti theft system activated. ... the road test after repairs. Without cycling the key off, the truck would crank but not start. Code P1260 was set in the PCM and U1262 in the cluster. (All codes were cleared before road test.) Once I cycled the key off, the truck started ok. When I got ba...
October 24, 2007