Mazda CX-9 2016–2019 — technical service bulletin
Bulletin SA-024-20 · NHTSA communication 10171785 · issued Feb 6, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2016–2019
model years
4
vehicle entries
Official summary
If you encounter sputtering, surging or poor driveability with the following DTCs stored, inspect the MAP sensor connection for corroded terminals (as shown below). Recommend replacing the engine wire harness and MAP sensor. Refer to GEPC for applicable part numbers.
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.