Mazda TSB #09-021-20-3714a
2019 Mazda MAZDA3
TSB Document:
Affected Component: EQUIPMENT ADAPTIVE/MOBILITY
- Summary
- Some customers may experience the master warning light and/or the "In-Vehicle Network Malfunction" warning message in the instrument cluster on with DTC B119F:01, B119F:13 and/or B119F:2B stored when the vehicle position cannot be displayed correctly. � B119F:01 (TCU - Tel antenna No. 1 malfunction) � B119F:13 (TCU - TEL antenna No.1 circuit malfunction) � B119F:2B (CMU - GPS antenna signal circuit malfunction) This concern may be caused by incoming noise disturbing the reception of GPS signals, resulting in the wrong vehicle location and the DTC stored. To eliminate this concern, the GPS antenna has been modified.
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