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Mazda TSB #09-001-24c
2021 Mazda MAZDA3
TSB Document:
Affected Component: UNKNOWN OR OTHER
- Summary
- Some customers may experience a âTelematics Malfunctionâ message in the instrument cluster with DTC U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the TCU has been modified.
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