Suzuki GSF1250 Service Manual page 514

4E-21 ABS:
Step
8 1) Turn the ignition switch OFF.
2) Disconnect the ABS control unit coupler. Refer to "ABS
Control Unit Coupler Disconnect and Connect (Page 4E-
70)"
3) Turn the ignition switch ON with the ABS control unit
coupler disconnected, measure the voltage between
"16" (O/Y) and "24" (B/W) at the coupler.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage ( )
Normal value ("16" – "24")
Battery voltage (12.0 V and more)
ABS control unit coupler (Harness end)
18
10
2
Is the voltage between "16" and "24" normal?
9 1) Turn the ignition switch ON with the ABS control unit
coupler disconnected, measure the voltage between
"21" (Brown) and "24" (B/W) at the coupler.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage ( )
Normal value ("21" – "24")
7.0 V and more
ABS control unit coupler (Harness end)
18
10
2
Is the voltage between "21" and "24" normal?
Action
( )
21
24
16
12 13
8
3
4
(A)
( )
(A)
( )
21
24
16
12 13
8
3
4
Go to Step 9.
(A)
25
9
I718H1450036-04
Go to Step 10.
( )
25
9
I718H1450037-02
Yes
Inspect the wire
harness. (Faulty ignition
or ground wire)
Inspect the wire
harness. (Faulty
indicator light wire)
No