Service bulletins for the 2012 Mazda CX-9
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
291 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Wiring and fuses are shown. Show all
| 01-027-13-2836a | 2017-08-10. Service bulletin. ELECTRICAL SYSTEM:WIRING; ENGINE; ELECTRICAL SYSTEM. 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. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.