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DTC U0420-00: Error Signal Received From EPS Control Module (Radar Unit): Notes
DTC U0420:00 (RADAR UNIT) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Error signal received from EPS control module |
| Detection condition |
- Communication error between EPS control module 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 |
- EPS control module malfunction
- Radar unit malfunction
|
| System wiring diagram |
|