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DTC Detection Logic

DTC Display Item Malfunction detected condition Possible causes
C1109 BATTERY VOLTAGE [ABNORMAL] When ignition power supply voltage is in following state.
  • Ignition power supply voltage: 10 V ≥ ignition power supply voltage.
  • Ignition power supply voltage: 16 V ≤ ignition power supply voltage.
  • Harness or connector
  • ABS actuator and electric unit (control unit)
  • Fuse
  • ignition power supply system
  • 12V battery
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