Mazda 626 1996–1997 — technical service bulletin
Bulletin 00598 · NHTSA communication 604036 · issued Dec 31, 1998
Technical service bulletin
communication type
Unknown OR Other
component
1996–1997
model years
4
vehicle entries
Official summary
Subject regarding malfunction indicator light (mil) illumination w/dtc p0421. *yc
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.