FixVault

DTC Detection Logic

NOTE:

Confirm if DTC is PAST or CURRENT. If DTC is CURRENT, proceed with Diagnosis Procedure. If DTC is PAST, clear DTC. Do not replace ABS actuator and electric unit (control unit) for a PAST DTC.

DTC Display item Malfunction detected condition Possible cause
Past DTC Current DTC
C1109 BATTERY VOLTAGE
[ABNORMAL]
  • When ignition voltage is 10 V or less.
  • When ignition voltage is 16 V or more.
  • Battery
  • Harness or connector
  • Intermittent incident
  • Fuse
  • Battery
  • Ignition power supply system
  • Harness or connector
  • ABS actuator and electric unit (control unit)
  • Intermittent incident