B1456 on the 2025 Mazda CX-90
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.
| 09-023-25 | 2025-06-04. Service bulletin. Some vehicles may exhibit that the power liftgate cannot be opened while stuck in an partially latched or fully opened/closed position, or it may reverse and open just before fully closing. with the following DTCs possibly stored in memory. B1451:02 BCM - Motor return switch circuit malfunction B1456:62 BCM - Latch condition malfunction U2646:16 BCM - Power liftgate (PLG) control module low power supply voltage input This may be caused by improper control software of the power liftgate control module. To eliminate this concern, the control software of the power liftgate control module has been modified. Customers having this concern should have their vehicle repaired using the following repair procedure. |
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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.