KYMCO Downtown 300i ABS Service Manual page 257

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21 ANTI-LOCK BRAKE SYSTEM (ABS)
Downtown 300i ABS
4. Choose Fi ECU Version and then push down button for three times.
LEA7
5. Choose No.2 ABS SYS ECU and then push up button to previous.
6. Confirming ECU Version and then enter ABS system.
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