Ford F-150 1999 — technical service bulletin
Bulletin 6914 · NHTSA communication 6090251 · issued Sep 1, 1999
Technical service bulletin
communication type
Electrical System
component
1999
model years
2
vehicle entries
Official summary
Some vehicles may exhibit a diagnostic trouble code b1845 (ignition tamper switch failure) when retrieving diagnostic trouble codes from the remote anti-theft personality (rap) module. *tt
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.