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Home >> Kia >> 2016 >> Soul EV Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Vehicle Motor Control System Diagnosis >> DTC U0129: Lost Communication With Brake System Control Module (C-CAN) >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC strategy
  • C-CAN signal monitoring
  1. Poor connection
  2. CAN communication
  3. Open or short in AHB communication line
Enable conditions
  • Ignition "ON" (Power Button LED "Red")
  • Enter VCU_READY ON ("1").
  • Auxiliary battery voltage (9 - 16 V)
  • Enter into diagnosis if the conditions above are satisfied and maintained for more than 0.5 seconds.
  • IG1 (No. 59) "High (12 V)" state
Threshold value
  • In case no message reception from AHB is maintained for 0.5 seconds - [Detailed error code: 604]
Diagnosis Time
  • 0.5 sec
DTC
  • 2 Driving Cycle
Service Lamp
  • Immediately
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