Mazda B-Series Truck 2003 — technical service bulletin
Bulletin SA-038-18 · NHTSA communication 10144335 · issued Aug 15, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003
model years
1
vehicle entries
Official summary
Some vehicles may have a check engine light on with a DTC P2004 (Intake Manifold Runner Control Stuck Open) stored in memory. This DTC is set when the IMRC is commanded closed, but the IMRC indicates open.
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.