Suzuki DL650K5 Service Manual page 532

13-28 DL650K7/AK7 ('07-MODEL)
"C28" (P1655) STV ACTUATOR CIRCUIT MALFUNCTION
DETECTED CONDITION
The operation voltage does not reach the STVA.
ECM does not receive communication signal from
the STVA.
STVA
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. (!DL650K4 5-7)
3) Check the STVA coupler for loose or poor contacts.
4) Turn the ignition switch ON to check the STV operation.
(STV operating order: Full open → 10% open)
Is the operating OK?
YES Go to Step 2.
• Loose or poor contacts on the STVA coupler.
• Open or short circuit in the B/Lg, P/W, G or W/B
NO
wires.
• If wire and connection are OK, go to Step 2.
POSSIBLE CAUSE
• STVA malfunction.
• STVA circuit open or short.
• STVA motor malfunction.
B/Lg
P/W
G
W/B
1
1
ECM
STVA. 1B
STVA. 1A
STVA. 2B
STVA. 2A