49" (P1656) Pair Control Solenoid Valve Circuit Malfunction - Suzuki TU250X Service Manual

4-66 FI SYSTEM DIAGNOSIS

"49" (P1656) PAIR CONTROL SOLENOID VALVE CIRCUIT MALFUNCTION

DETECTED CONDITION
PAIR control solenoid valve voltage is not input to
ECM.
ECM
PAIR

When using the multi circuit tester, do not strongly touch the terminal of the ECM coupler with
a needle-point probe to prevent the terminal damage or terminal bend.
INSPECTION
NOTE:
After repairing the trouble, clear the DTC using SDS tool.
(4-24)
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) Remove the PAIR control solenoid valve. (11-7)
4) Measure the resistance between terminals.
 PAIR control solenoid valve resistance:
 09900-25008: Multi circuit tester set
 Tester knob indication: Resistance (Ω)
Is the resistance OK?
YES Go to Step 2.
Replace the PAIR control solenoid valve with a
NO
new one.
B/G
Approx. 22 Ω at 20 °C (68 °F)
(Terminal – Terminal)
POSSIBLE CAUSE
• PAIR control solenoid valve circuit open or short
• PAIR control solenoid valve malfunction
O/W
To side-stand
switch
Side-stand
relay
PAIR control solenoid
valve
1
1
Ignition switch