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Home >> Kia >> 2012 >> Optima Hybrid >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Active Hydraulic Booster (AHB) System Diagnosis - HEV >> DTC C1616: CAN Bus Off >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • Open or short circuit monitoring
  1. Open or short circuit in CAN line
  2. Faulty HECU
Enable Conditions
  • Once CAN bus off state occurs, CAN Communication is initialized and has recovery time for 70ms.
    • The CAN bus off state occurs more than 10 times continuously.
Fail Safe
  • EBD warning lamp is activated and buzzer is not activated.
  • "Check Brake!" message is displayed on LCD.
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