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; DTC B1A14: Keyless key 5 low battery; DTC B1A15: Keyless key 6 low battery; DTC B1A16: Keyless key 7 low battery; DTC B1A17: Keyless key 8 low battery: Notes
WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
When replacing the ECU, always check that the communication circuit is normal.