Ford E-150 1991–1998 — technical service bulletin
Bulletin BC9695961001 · NHTSA communication 50553 · issued Oct 1, 1996
Technical service bulletin
communication type
Visibility
component
1991–1998
model years
4
vehicle entries
Official summary
Electronic automatic temperature control (eatc) invalid diagnostic codes u1235 & 155 may be stored if the ignition switch is cycled from 'off' to 'run' extremely slowly. *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.