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Home >> Hyundai >> 2013 >> Santa Fe XL Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (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

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Item Detecting Condition Possible cause
DTC Strategy
  • CAN Signal Check
  1. Poor connection
  2. Open or short in CAN communication line
  3. Error in ESC 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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