Some customers may experience an âIn-Vehicle Network Malfunctionâ message appearing in the instrument...
Mazda technical service bulletin 09-034-20-3743 for 2019-2021 Mazda MAZDA3 and 2020-2021 Mazda CX-30.
- Bulletin number
- 09-034-20-3743
- Component
- Electrical system
- Summary
- Some customers may experience an âIn-Vehicle Network Malfunctionâ message appearing in the instrument cluster. This concern occurs when turning the ignition on or starting the engine when the battery is at 8 volts or lower (vehicle is in sleep mode), then it is charged to normal voltage while connected to the vehicle. NOTE: This concern will not occur if the battery is charged when removed from the vehicle. This concern is caused by improper telematics communication unit control software. To eliminate this concern, the telematics communication unit control software has been modified.
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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