Infiniti QX56 2004 — technical service bulletin
Bulletin 04047 · NHTSA communication 10010174 · issued Sep 23, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
1
vehicle entries
Official summary
Malfunction indicator lamp (mil) on with diagnostic trouble code (dtc) p1774. *nm
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.