DTC C1A67:4B [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 |
Radar unit is outside of operation range (ignition power supply, internal temperature) |
| Detection condition |
- Radar unit power supply voltage is other than 9.5-15.5 V.
- Temperature in radar unit exceeds specification.
|
| Fail-safe |
- Inhibits the Mazda radar cruise control (MRCC) system control
- Inhibits the smart brake support (SBS) system control
|
| Possible cause |
- Generator system malfunction
- C/U IG1 15 A fuse malfunction
- Battery malfunction
- Open circuit or short to ground in wiring harness between battery positive terminal and radar unit
- Radar unit malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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