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Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Autonomous Emergency Braking (AEB) System Diagnosis (HEV) >> DTC C1702-55: Variant Coding Error >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • Monitoring CAN messages
  1. Variant coding error
  2. Faulty LDWS Module
  3. Faulty AEB(SCC) Module
Enable conditions Case 1)
  • Battery voltage is between 9 volt and 16 volt and the ignition switch is on condition.

Case 2)
  • It has 2 seconds delay after ignition switch is on.
  • Battery voltage is between 9 volt and 16 volt.
  • No CAN Bus Off
Threshold value
  • When the specification is not selected in AEB(SCC) Module or the specification is incorrectly selected with actual vehicle specification.

Case 1)
  • The specification setting is not selected.

Case 2)
  • The specification setting is not incorrectly selected.
Diagnosis Time Case 1) 1 time
Case 2) 6 seconds
Fail Safe
  • SCC/AEB Disengagement/Shutdown
  • SCC/AEB Warning lamp turns 'ON'