Suzuki VL800 Service Manual page 578

18-38 VL800/C/TK9 ('09-MODEL)
Step 2
1) Connect the purge control solenoid valve coupler.
2) Turn the ignition switch ON.
3) Measure the voltage at the wire side coupler between O/W
wire and ground.
 PAIR control solenoid valve voltage: Battery voltage
 09900-25008: Multi-circuit tester set
 Tester knob indication: Voltage ()
Is the voltage OK?
• Dbr wire open or shorted to ground, or Z con-
nection.
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
YES
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO Open or short circuit in the O/W wire.
ACTIVE CONTROL INSPECTION
1) Set up the SDS tool. (Refer to the SDS operation manual for
further details.)
 09904-41010: SDS set tool
99565-01010-017: CD-ROM Ver.17
2) Turn the ignition switch ON.
3) Click "EVAP purge valve operating control" 1.
4) Click each button 2.
At this time, if an operation sound is heard from the EVAP
system purge control solenoid valve, the function is normal.
(+ O/W – - Ground)
2
2
ECM coupler (Harness side)
V