Suzuki VZR1800 2008 User Manual

5-58 FI SYSTEM DIAGNOSIS
“C28” (P1655) STV ACTUATOR CIRCUIT MALFUNCTION
INSPECTION
Step 1
1) Remove the air cleaner chamber. (#6-13)
2) Check the STVA lead wire coupler for loose or poor contacts.
3) Turn the ignition switch ON to check the STV operation.
(STV operating order: Full open → 95% open)
Is the operating OK?
4) After repairing the trouble, clear the DTC using SDS tool.
(#5-26)
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
1
YES Go to Step 2.
NO
• Loose or poor contacts on the STVA coupler
• Open or short circuit in the B/Lg, P/W, W/B or
Green wires
• If wire and connection are OK, go to Step 2.
1

Suzuki VZR1800 2008 Specifications

General

Displacement	1783 cc
Bore x Stroke	112.0 mm x 90.5 mm
Compression Ratio	10.5:1
Fuel System	Fuel injection
Ignition	Electronic ignition (transistorized)
Transmission	5-speed constant mesh
Final Drive	Shaft drive
Front Suspension	Inverted telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Front Brakes	Dual hydraulic disc
Rear Brakes	Single hydraulic disc
Engine Type	4-stroke, liquid-cooled, DOHC, V-twin
Front Tire	130/70R18M/C 63H
Overall Length	2485mm (97.8 inches)
Overall Height	1185 mm
Ground Clearance	140 mm (5.5 in)
Seat Height	705 mm
Curb Weight	347 kg