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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 U2300:54, U2300:55, U2300:56, U2300:64 [Radar Unit] >> Notes

DTC U2300:54, U2300:55, U2300:56, U2300:64 [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
  • U2300:54: Configuration error (data not received)
  • U2300:55: Configuration error (no configuration)
  • U2300:56: Configuration error (Ineffective/non-interchangeable data read)
  • U2300:64: Configuration error (error value read)
Detection condition 
  • The radar unit detects configuration setting failure.
Fail-safe 
  • Inhibits the Mazda radar cruise control (MRCC) system control
  • Inhibits the smart brake support (SBS) system control
Possible cause 
NOTE:
  • If the radar unit is replaced with a new one, the configuration is re-performed within 6 s after the ignition is switched ON (engine off).
  • After performing the configuration, DTC U2300:55 will be cleared if the ignition is switched ON (engine off) after the ignition is switched off.
  • Module configuration procedure was not completed properly
  • Correct data cannot be received from instrument cluster
  • Radar unit malfunction
System wiring diagram 
  • Not applicable