When replacing the body control module (BCM), some ECUs may need reprogramming
Mazda technical service bulletin 09-027-22 for 2019-2021 Mazda MAZDA3 and 2020-2021 Mazda CX-30.
- Bulletin number
- 09-027-22
- Component
- Electrical system
- Summary
- When replacing the body control module (BCM), some ECUs may need reprogramming. Without reprogramming the concerned ECUs, the power saving function may not work properly.
Owners of these vehicles have filed 40 complaints in the electrical category.
Vehicles covered
- Mazda MAZDA3 2019-2021 201920202021
- Mazda CX-30 2020-2021 20202021
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