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Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Adaptive Front Lighting System Diagnosis (HEV) >> DTC B1603-88: CAN Bus Off Fault >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Signal monitoring
  1. CAN communication circuit Open/Short
  2. Faulty in CAN communication circuit.
  3. Faulty in CAN communication module.
Enable Conditions
  • IG ON
Threshold Value
  • Faulty in CAN communication circuit.
Detecting Time
  • 0.5 seconds
Fail Safe
  • Leveling: stop at present status.
  • Swivelling: stop at present status.
  • Shield: Class C maintained.
Check Lamp
  • No
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