DTC U0402-00: Error Signal Received From TCM (Radar Unit): Notes
DTC U0402:00 (RADAR UNIT) DETECTION CONDITION AND POSSIBLE CAUSE
| 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
- Inhibits the distance recognition support system (DRSS) control
|
| Possible cause |
- TCM malfunction (selector lever position signal malfunction)
- Radar unit malfunction
|
| System wiring diagram |
|