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Home >> Hyundai >> 2023 >> Santa Cruz Limited >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 4WD Control System Diagnosis >> DTC U0122-87: Lost Communication With Vehicle Dynamics Control Module >> DTC Information and Inspection >> DTC Detecting Condition
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DTC Information and Inspection: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
Main Action
  • Monitor CAN messages
  1. Poor contact of connectors of each communication module
  2. Open/short in the CAN communication circuit
  3. ESP/ESC (=ESC Unit)
Prerequisite Condition
  • Turn the ignition switch on or start the engine
Threshold Value
  • An ESC CAN message was not received
Diagnosis time
  • 2 second
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