DTC B1A10: Keyless/KOS Key 1 Low Battery; DTC B1A11: Keyless/KOS Key 2 Low Battery; DTC B1A12: Keyless/KOS Key 3 Low Battery; DTC B1A13: Keyless/KOS Key 4 Low Battery: Notes
CAUTION:
When replacing the ECU, always check that the communication circuit is normal.