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HOMESERVICE MANUALSHYUNDAI2017IONIQ ELECTRICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCEAUTONOMOUS EMERGENCY BRAKING (AEB) SYSTEM DIAGNOSIS (EV)DTC C1702-55: VARIANT CODING ERRORDTC INFORMATIONDTC DETECTING CONDITION
2017 Hyundai Ioniq Electric

DTC Information: DTC Detecting Condition

2017 Hyundai Ioniq ElectricSECTION DTC Detecting Condition
Item Detecting Condition Possible Cause
DTC Strategy
  • Monitoring CAN messages
  1. Variant coding error
  2. Faulty LKAS(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'
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.