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.