Ford Explorer 2003–2004 — technical service bulletin
Bulletin 17666 · NHTSA communication 10007423 · issued Mar 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2004
model years
7
vehicle entries
Official summary
Diagnostic trouble code (dtc) u0300 (internal control module software incompatibility) stored in the pcm with no other dtc's present. *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.