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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 152 (Forward Collision-Avoidance Assist System Diagnosis) >> DTC C1742-81: Variant Error - ESC (Check ESC) >> DTC Description >> DTC Setting Condition

DTC Setting Condition

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
Troubleshooting Condition Possible Cause
Main action
  • Monitor CAN messages
 1. Open/short in CAN communication circuit
2. Faulty ESP (ESC) Module
3. Faulty FCA/SCC Module
4. Non ESP (ESC) specification is equipped
Prerequisite condition
  • Engine is on (Confirm that an engine operation signal is sent from EMS for over 2 sec.).
  • Battery Voltage is between 9V and 16V.
  • Ignition has been on for over 2 sec.
  • CAN Communication Lines are normal.
Threshold Value
  • When ESP (ESC) does not support the SCC function
Diagnosis Time
  • 0.5 sec.
MIL
  • SCC operation cancelled/inhibited (FCA works normally)
  • SCC warning lamp ON (FCA warning lamp OFF)
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