C28" (P1655) Stv Actuator Circuit Malfunction - Suzuki GSX-R1000K5 Service Manual

"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
B
P
G
W/BI
INSPECTION
Step 1
1) Lift and support the fuel tank. (5-3)
2) Remove the air cleaner cover. (2-4)
3) Check the STVA lead wire coupler for loose or poor contacts.
4) Turn the ignition switch ON to check the STV operation.
(STV operating order: Full open → 95% 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, W/B or
NO
Green wires
• If wire and connection are OK, go to Step 2.
5) After repairing the trouble, clear the DTC using SDS tool.
(4-27)
POSSIBLE CAUSE
• STVA malfunction
• STVA circuit open or short
• STVA motor malfunction
B/Lg
P/W
G
W/B
1
1
FI SYSTEM DIAGNOSIS 4-65
ECM
STVA. 1B
STVA. 1A
STVA. 2B
STVA. 2A