Some customers may experience a warning message for the approaching vehicle audible system (AVAS) right...
Mazda technical service bulletin 09-028-24a for 2024 Mazda CX-90 and 2025 Mazda CX-70.
- Bulletin number
- 09-028-24a
- Component
- Electrical system
- Summary
- Some customers may experience a warning message for the approaching vehicle audible system (AVAS) right after the ignition is turned on (POWER ON) while a loud noise, such as a horn, occurs close to the vehicle. Upon inspection, DTC B1A03:2B [ISB_AMP] (AVAS device circuit malfunction) is stored in memory. This may be caused by an internal initial diagnosis in the notification and warning amplifier detecting a false malfunction under this particular situation. To eliminate this concern, the control software of the notification and warning amplifier has been modified.
Owners of these vehicles have filed 45 complaints in the electrical category.
Vehicles covered
- Mazda CX-90 2024 2024
- Mazda CX-70 2025 2025
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