Dodge Ram Pickup 1999 — technical service bulletin
Bulletin 976 · NHTSA communication 619511 · issued Apr 1, 2001
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999
model years
3
vehicle entries
Official summary
On some vehicles the on-board diagnostic (obd) system may not detect a catalyst failure as required by california emissions regulation. As a result, the obd system may not illuminate the check engine light if a catalyst fails. *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.