Ford Expedition 2003 — technical service bulletin
Bulletin 17001 · NHTSA communication 10003857 · issued Jul 1, 2003
Technical service bulletin
communication type
Steering
component
2003
model years
2
vehicle entries
Official summary
Advancetrac malfunction indicator lamp on with diagnostic trouble code c1277 (steering wheel angle 1 an 2 circuit failure) or c1278 (steering wheel angle 1 and 2 signal faulted) in the ivd 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.