Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
6Original wording in English
MAZDA
Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored: à ̄‚· B119F:01 TCU - Tel antenna No. 1 malfunctionà ̄‚· B119F:13 (TCU - TEL antenna No.1 circuit malfunction)à ̄‚· B119F:2B (CMU - GPS antenna signal circuit malfunction…
MAZDA
Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored:à ̄‚· B119F:01 TCU - Tel antenna No. 1 malfunction à ̄‚· B119F:13 (TCU - TEL antenna No.1 circuit malfunction) à ̄‚· B119F:2B (CMU - GPS antenna signal circuit malfunctio…
MAZDA
Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored:à ̄‚· B119F:01 TCU - Tel antenna No. 1 malfunction à ̄‚· B119F:13 (TCU - TEL antenna No.1 circuit malfunction) à ̄‚· B119F:2B (CMU - GPS antenna signal circuit malfunctio…
MAZDA
Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored: à ̄‚· B119F:01 TCU - Tel antenna No. 1 malfunction à ̄‚· B1252:87 TCU - Communication error with connectivity master unit (CMU) à ̄‚· U0156:00 VCM - communication error …
Check vehicle applicability
3A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.