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Home >> Hyundai >> 2017 >> Tucson Value, 4WD >> Repair and Diagnosis (Single Page) >> Transmission >> Transfer Case >> 4WD Control System Diagnosis >> DTC U1121: Lost Communication With Electric Stability Program Module >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • CAN Signal Check
  1. Poor connection
  2. Open or short in CAN communication line
  3. Error in ESP unit
Enable Conditions
  • IG "ON" or Engine "ON"
Threshold value
  • It can't get some CAN signals from ESC module.
Detecting time
  • 2 seconds
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