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Home >> Kia >> 2012 >> Optima Hybrid >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Active Hydraulic Booster (AHB) System Diagnosis - HEV >> DTC C1234: High Pressure Accumulator Long Term Charge Error >> DTC Description >> DTC Detecting Condition

DTC Description: DTC Detecting Condition

Item  Detecting Condition  Possible Cause 
DTC Strategy
  • High accumulator pressure charging pressure monitoring
  1. Damaged or poor connector connection
  2. Defected high pressure accumulator
  3. Air bleeding is not properly completed.
Threshold Value
  • When one of following condition is met :
    • Change in pressure is less than 100 bar for 20 sec.
    • Change in pressure is less than 140 bar for 30 sec.
    • Change in pressure is less than 157 bar for 45 sec.
Check Lamp
  • Brake (EBD), ABS, ESC, AVH (yellow), Buzzer
Remark
  • Clear condition : Ignition switch "OFF" and then "ON" and brake pedal operation (press and release) for 3 sec.