Suzuki SFV650 Service Manual page 118

1A-55 Engine General Information and Diagnosis:
Step
1 8) Disconnect the ECM coupler. Refer to "ECM Removal
and Installation in Section 1C (Page 1C-1)".
9) Check there is no continuity between the Dg wire "A"
and ground, B/Br wire "B" and ground, Dg wire "A" and
B/Br wire "B".
Special tool
(A): 09900–25008 (Multi circuit tester set)
Tester knob indication
Continuity (
"A"
"A"
Is there no continuity?
Action
)
"B"
"B"
Yes
Go to Step 2.
(A)
I944H1110129-01
(A)
I944H1110130-01
No
Short circuit in the Dg
wire or B/Br wire.