Suzuki VLR1800 Service Manual page 110

1A-41 Engine General Information and Diagnosis:
Step
1 6) Disconnect the ECM coupler. Refer to "ECM Removal
and Installation in Section 1C (Page 1C-1)".
7) Check the continuity between the P/B wire "A" and
terminal "8".
Also, check the continuity between the B/Br wire "B" and
terminal "29".
Special tool
(A): 09900–25008 (Multi-circuit tester set)
(B): 09900–25009 (Needle pointed probe set)
Tester knob indication
Continuity (
ECM coupler (Harness side)
"B"
(B)
"8"
(Black)
Is the continuity OK?
Action
)
"A"
(A)
"29"
(Gray)
Yes
Go to Step 3.
I822H1110028-01
No
P/B wire shorted to
VCC, or B/Br wire open.