That DTC B2002:49 will not clear with the Mazda Modular Diagnostic System (MMDS). Applicable vehicles are...
Mazda technical service bulletin 09-033-20-3742 for 2019-2020 Mazda MAZDA3.
- Bulletin number
- 09-033-20-3742
- Component
- Electrical system
- Summary
- Some vehicles may exhibit that DTC B2002:49 will not clear with the Mazda Modular Diagnostic System (MMDS). Applicable vehicles are equipped with the Electrical supply unit (ESU) BCKA-67-5Z0B. ï· DTC B2002:49 [BODY CONTROL MODULE (BCM)] - Electrical supply unit (ESU) internal malfunction (No warning/indicator light illumination) This is caused by improper control software of the ESU. To eliminate this concern, the control software of the ESU has been modified.
Owners of these vehicles have filed 14 complaints in the electrical category.
Vehicles covered
- Mazda MAZDA3 2019-2020 20192020
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