Mazda CX-9 2011–2013 — technical service bulletin
Bulletin 01-027-13-2836a · NHTSA communication 10110994 · issued Nov 12, 2013
Technical service bulletin
communication type
Electrical System
component
2011–2013
model years
3
vehicle entries
Official summary
Some vehicles may experience MIL illumination with DTC P219A:00 and/or P219B:00 stored in PCM memory. The DTCs may be caused by abnormal electrical noise within the engine harness of certain vehicles. To elimi-nate this concern, separate the A/F sensor signal lines from the emission harness by installing the short cord service part detailed in this bulletin.
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.