Suzuki GW250 Service Manual page 208

Step 1
FP relay power supply circuit check
1) Turn the ignition switch OFF.
2) Remove the frame upper cover assembly. (8-6)
3) Disconnect the FP relay coupler 1.
4) Check for proper terminal connection to the FP relay coupler.
5) If connections are OK, turn the ignition switch ON.
6) Check the following points.
• Voltage between O/W wire and ground is battery voltage.
• Voltage between R/Y wire and ground is battery voltage.
 09900-25008: Multi circuit tester set
 Tester knob indication: Voltage ()
 FP relay power supply voltage:
Battery voltage
(+ terminal: O/W – - terminal: Ground)
(+ terminal: R/Y – - terminal: Ground)
Is check result OK?
YES Go to Step 2.
NO Repair or replace the defective wire harness.
Step 2
FP relay check
Check the FP relay. (5-5)
Is check result OK?
YES Go to Step 3.
NO Replace the FP relay.
FI SYSTEM DIAGNOSIS 4-67
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