Suzuki GSF1250 Service Manual page 511

Step
3 (The ABS indicator light does not light up)
1) Remove the left frame cover. Refer to "Exterior Parts
Removal and Installation in Section 9D (Page 9D-6)".
2) Remove the fuse box (1) by removing the mounting bolt.
3) Open the fuse box and inspect the ignition fuse (2).
CAUTION
!
If a fuse is blown, find the cause of the problem
and correct it before replacing the fuse.
Ignition fuse
15 A
Is the ignition fuse OK?
Action
1
2
Yes
Go to Step 4.
I718H1450034-01
I718H1450035-01
ABS: 4E-18
No
Replace the ignition
fuse.