Suzuki GSF650A Service Manual page 540

4E-53 ABS:
Step
2 1) Check for continuity between "2" (B/Y) and "3" (W/R) at
the coupler.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Continuity (
ABS control unit coupler (Harness end)
18
10
2
Is there continuity between "2" and "3"?
3 1) Turn the ignition switch ON with the ABS control unit
coupler disconnected, measure the voltage between "3"
(W/R) and "24" (B/W) at the coupler.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage ( )
Normal value ("3" – "24")
0 V
ABS control unit coupler (Harness end)
18
10
2
Is the voltage between "3" and "24" normal value?
Action
)
21
24
16
12 13
8
3
4
(A)
( )
(A)
21
24
16
12 13
8
3
4
(A)
( )
• Inspect the wire
harness. (Faulty
sensor wire)
• Faulty front wheel
speed sensor
25
9
I718H1450086-02
Replace the ABS
control unit/HU.
25
9
I718H1450087-02
Yes
Go to Step 3.
Inspect the wire
harness. (Faulty sensor
signal or power supply
wire)
No