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Home >> Genesis >> 2019 >> G70 2.0T Advanced, AWD >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 4WD Control System Diagnosis >> DTC U0101-87: Lost Communication With TCU >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
Main Action
  • Monitor the TCU CAN message
  1. Poor contact of connectors of each communication module
  2. Open/short in the CAN communication circuit
  3. Faulty TCU
Prerequisite Condition
  • CAN BUS is normal
  • Start the engine
Threshold Value
  • A TCU CAN message was not received
Diagnosis Time
  • 2 sec.
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