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Home >> Hyundai >> 2020 >> Sonata SEL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 30 (Abs/ESC Diagnosis (HEV) (1 Of 2)) >> DTC C1268-01: Circuit Leak Fail >> DTC Information And Inspection >> DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.
Troubleshooting Condition Possible Cause
Main Action
  • Monitor the brake oil pressure
  1. Brake oil leak
  2. Faulty Brake fluid level sensor
  3. Faulty IEBM
  4. System failure
  5. Air bleeding is not sufficiently performed
Threshold Value Case 1 (External Circuit Leak Fail)
  • A failure is detected if circuit pressure is less than hydraulic volume which is generated by pump
Case 2 (Internal Circuit Leak Fail)
  • A failure is detected if internal leakage is occurred
Case 3 (Valve mechanical stuck)
  • A failure is detected if Release/Circuit Balance/Backward valve is stuck mechanically
MIL  
  • ABS/ESC/RBS/IEB/DBC/AVH warning lamps are activated

    EBD/EPB warning lamps are not activated

Reset Condition
  • When the normal state is confirmed during the Startup or shutdown hydraulic test phase
NOTE: * IEBM (Integrated Electric Brake Module: ESP Control Module)