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DTC Detection Logic

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC TABLE

DTC Display item Malfunction detected condition Possible cause
C1109 BATTERY VOLTAGE [ABNORMAL] When the ABS actuator and electric unit (control unit) power supply voltage is lower than normal.
  • Harness or connector
  • ABS actuator and electric unit (control unit)
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