DTC U0402:00 [Radar Unit]: Notes
WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
| System malfunction location |
Error signal received from TCM |
| Detection condition |
- Communication error between TCM and radar unit
|
| Fail-safe |
- Inhibits the Mazda radar cruise control (MRCC) system control
- Inhibits the smart brake support (SBS) system control
|
| Possible cause |
- TCM malfunction (selector lever position signal malfunction)
- Radar unit malfunction
|
| System wiring diagram |
|