Suzuki Boulevard M50 User Manual

FI SYSTEM 5-73
“C49” (P1656) PAIR CONTROL SOLENOID VALVE CIRCUIT MALFUNCTION
INSPECTION
Step 1
1) Turn the ignition switch OFF.
2) Check the PAIR control solenoid valve coupler for loose or
poor contacts.
If OK, then measure the PAIR control solenoid valve resis-
tance.
3) Disconnect the PAIR control solenoid valve coupler.
4) Measure the resistance between Black and Black wire termi-
nals.

PAIR valve resistance:
20 – 24
Ω at 20 – 30 °C (68 – 86 °F)
(Black – Black)
 09900-25008: Multi-circuit tester set
 Tester knob indication: Resistance (Ω)
5) If OK, then check the continuity between each terminal and
ground.
 PAIR valve resistance: ∞ Ω (Infinity)
(Terminal – Ground)
 Tester knob indication: Resistance (Ω)
Is the resistance OK?
6) After repairing the trouble, clear the DTC using SDS tool.
(5-25)
DETECTED CONDITION POSSIBLE CAUSE
PAIR control solenoid valve voltage is not input to
ECM.
• PAIR valve circuit open or short
• PAIR valve malfunction
• ECM malfunction
ECM
Side-stand
relay
Ignition
switch
Engine stop
switch
O/W
PAIR control
solenoid valve
Br/B
B
B
SOL
To GP switch
1
YES Go to Step 2.
NO Replace the PAIR valve with a new one.
1
1
SAMPLE

Suzuki Boulevard M50 Specifications

General

Compression Ratio	9.4:1
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
Front Tire	130/90-16M/C 67H, tubeless
Rear Tire	170/80-15M/C 77H, tubeless
Ground Clearance	140 mm (5.5 in)
Seat Height	700 mm (27.6 in)
Engine Type	4-stroke, liquid-cooled, V-twin
Bore x Stroke	83.0 mm x 74.4 mm
Rear Suspension	coil spring, oil damped
Front Brakes	Single hydraulic disc
Rear Brakes	Drum
Fuel Tank Capacity	15.5 L (4.1 US gal)
Wheelbase	1, 655 mm (65.2 in)