32 SV650K7/SK7/AK7/SAK7 (’07-MODEL)
“C28” (P1655) STV ACTUATOR CIRCUIT MALFUNCTION
INSPECTION
NOTE:
After repairing the trouble, clear the DTC using SDS tool.
Step 1
1) Turn the ignition switch OFF.
2) Lift and support the fuel tank with its prop stay.
(#SV650/SK3 5-6)
3) Check the STVA coupler for loose or poor contacts.
4) Remove the air cleaner cap. (#SV650/SK3 2-4)
5) Turn the ignition switch ON to check the STV operation.
(STV operating order: Full open → 15% open)
Is the operating OK?
DETECTED CONDITION POSSIBLE CAUSE
The operation voltage does not reach the STVA.
ECM does not receive communication signal from
the STVA.
• STVA malfunction.
• STVA circuit open or short.
• STVA motor malfunction.
ECM
STVA. 2B
STVA. 1A
STVA. 1B
STVA
B/Lg
P/W
G
W/B
STVA. 2A
YES Go to Step 2.
NO
• Loose or poor contacts on the STVA coupler.
• Open or short circuit in the B/Lg, P/W, G or W/B
wires.
• If wire and connection are OK, go to Step 2.
SAMPLE
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