B112A on the 2025 Mazda CX-5
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| SA-014-25 | 2025-04-01. Service bulletin. Some vehicles may experience an engine no start/no crank with either of the following DTC's stored: P0615:12 - Starter relay circuit malfunction B112A:12 - IG2 relay circuit malfunction This may be caused by water contamination/corrosion at electrical connector C-04 due to: Windshield tint installation: Windshield tint installed to block UV light. The water used during the installation of the tint may run down behind the dashboard. Carefully inspect the windshield to see if window tint has been installed or not. Some window tint film appears clear and is for UV light only. Windshield repair/replacement: Poor windshield sealing during installation can cause an internal water leak. Water may run down behind the dashboard. |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.