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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 C1604-04: ECU Hardware Error >> 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
  • Internal monitoring
  1. Poor contact of connector
  2. Controller power supply failure
  3. Faulty IEBM
Threshold Value Case 1 (MCU)
  • In case of fault in MCU internal device
  • Faulty EEPROM
  • Faulty RAM, ROM
  • Faulty MCU Trap
  • Faulty Stack overflow
  • Faulty Cycle time over
  • Faulty ADC converter
  • Faulty Oscillator
  • Faulty PFM
  • Faulty MPU
  • Faulty 3.3V internal power supply
Case 2 (ASIC)
  • In case of fault detection by ASIC
  • Faulty Configuration
  • Faulty SPI
  • Faulty ASIC Power
  • Faulty ASIC Current
  • Faulty Charge pump
  • Faulty Oscillator
  • Faulty NVM
MIL
  • EBD/ABS/ESC/IEB/RBS/DBC/AVH/EPB warning lamps are activated
Reset Condition
  • When the normal state is confirmed after ignition switch turned OFF and back ON
NOTE: * IEBM (Integrated Electric Brake Module: ESP Control Module)