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Home >> Kia >> 2021 >> Niro LX >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> ESC/AHB Diagnosis (HEV) (2 Of 2) >> DTC C2112-01: Valve Relay Error >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • AHB valve voltage monitoring
  • Poor connector connection
  • Open or short to ground in valve relay circuit
  • Low voltage on valve relay
  • Faulty IBAU
Case1 Threshold Value
  • A fault is detected if AHB valve relay voltage is less than 5V for more than 0.2s while the valve relay is "ON"
Warning Lamp
  • EBD/ABS/ESC (ESP)/AVH warning indicator lamp "ON"
  • Buzzer "ON"
Case2 Threshold Value
  • A fault is detected if ABS valve relay voltage is greater than 6V for more than 0.2s while the valve relay is "OFF"
  • A failure is detected if the voltage difference between power side and load side of ABS valve relay is greater than 1.15V more than 0.2s
Warning Lamp
  • EBD/ABS/ESC (ESP)/AVH warning indicator lamp "ON"
  • EBD inhibited
Case3 Threshold Value
  • A fault is detected if AHB valve relay voltage is greater than 6V for more than 0.2s while the valve relay is "OFF"
Warning Lamp
  • ABS/ESC (ESP)/AVH warning indicator lamp "ON"
Disable Condition
  • Ignition "OFF" and then "ON"