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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (On-Board Diagnostic - Radar Unit) >> DTC U3003:16, U3003:17 [Radar Unit] >> Notes

DTC U3003:16, U3003:17 [Radar Unit]: Notes

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System malfunction location
  • U3003:16: Radar unit power supply voltage decreases
  • U3003:17: Radar unit power supply voltage increases
Detection condition 
  • U3003:16: radar unit power supply voltage is 9 V or less  during engine start.
  • U3003:17: radar unit power supply voltage is 16.3 V or more  .
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
  • Radar unit connector malfunction
  • Open circuit or short to ground in wiring harness between battery positive terminal and radar unit
  • Radar unit malfunction
G10939903Courtesy of MAZDA MOTORS CORP.