Suzuki GSF650A Service Manual page 132

1A-57 Engine General Information and Diagnosis:
Step
2 4) Disconnect the IAP sensor coupler.
5) Insert the needle pointed probes to the lead wire coupler.
6) Check the continuity between the R and G/B wire.
If the sound is not heard from the tester, the circuit
condition is OK.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
(B): 09900–25009 (Needle pointed probe set)
Tester knob indication
Continuity (
(B)
7) Disconnect the ECM coupler. Refer to "ECM Removal
and Installation in Section 1C (Page 1C-1)".
8) Check the continuity between the G/B wire "C" and
terminal 9.
If OK, then 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 test (
ECM coupler (Harness side)
"C"
(B)
"9"
Is the continuity OK?
Action
)
)
"B"
"29"
Yes
Go to Step 4.
(A)
I718H1110023-03
(A)
I718H1110182-02
No
W/Bl wire shorted to
Vcc, or B/Br wire open.