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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 63 (On-Board Diagnostics - Auto A/C) >> DTC U2300-54: U2300-55: U2300-56: U2300-64: Configuration Error >> Notes

DTC U2300-54: U2300-55: U2300-56: U2300-64: Configuration Error: 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 (not configured)
  • U2300:56: Configuration error (ineffective/non-interchangeable data read)
  • U2300:64: Configuration error (error value read)
Detection condition 
  • Climate control unit detects configuration data not record or data error
Fail-safe  -
Possible cause 
NOTE:
  • If power from the battery is interrupted, the heater control unit will go into a non-configured state because the memory for the configuration information is erased. If the ignition is switched ON (engine off) at this time, DTC U2300:55 is detected.
  • Normally, 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
  • Climate control unit malfunction
System wiring diagram  -