Ford Econoline 1991–1994 — technical service bulletin
Bulletin ONP/94B56 · NHTSA communication 37922 · issued Dec 1, 1994
Technical service bulletin
communication type
Electrical System
component
1991–1994
model years
10
vehicle entries
Official summary
Corrosion between the tamper sensor and the ignition switch casting may cause false activation of the anti-theft alarm system. *tw
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.