Suzuki SFV650 Service Manual page 142

1A-79 Engine General Information and Diagnosis:
Step
2 1) Disconnect the ECM coupler. Refer to "ECM Removal
and Installation in Section 1C (Page 1C-1)".
2) Check the continuity between the Y wire "A" and terminal
"4".
Special tool
(A): 09900–25008 (Multi circuit tester set)
(B): 09900–25009 (Needle pointed probe set)
Tester knob indication
Continuity (
ECM couplers (Harness side)
(B)
"4"
3) If the sound is head from the tester, then check there is
no continuity among the Y wire "A" and another wire.
Special tool
(A): 09900–25008 (Multi circuit tester set)
Tester knob indication
Continuity (
Is the continuity OK?
Action
)
"A"
(A)
)
"A"
Yes
Go to Step 3.
I944H1110145-01
(A)
I944H1110146-01
No
Short circuit in the Y
wire.