Mazda CX-7 2010–2012 — technical service bulletin
Bulletin SA-020-19 · NHTSA communication 10160580 · issued May 20, 2019
Technical service bulletin
communication type
Electrical System
component
2010–2012
model years
3
vehicle entries
Official summary
Some vehicles (with L5 engine only) may exhibit the Check Engine Light ON with DTC P0606. This may be caused by corrosion on the C-31 connector due to moisture.
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.