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Home >> Kia >> 2021 >> Sedona SX >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake Diagnosis >> DTC C1604-04: ECU Hardware Error >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Internal Monitoring
  • Internal error of EPB ECU
Threshold Value Case 1
  • If MCU can't erase or write a data of the EEPROM
  • If the master/slave MCU detects abnormal operation in RAM, ROM, Interrupt, Timer, A/D converter and Cycle time
Case 2
  • Current sensor voltage is either higher than 4.8V or lower than 0.2V for more than 200 ms
Case 3
  • Current value is 2A for more than 200 ms after 5s upon complete control
Case 4
  • CAN Hardware Failure
Fail Safe
  • EPB operation inhibited
Warning Lamp
  • Warning Lamp "ON"
Clear Condition
  • Ignition "OFF" and then "ON"