Suzuki GW250 Service Manual page 173

4-32 FI SYSTEM DIAGNOSIS
– Between the G wire and B wire at CKP sensor coupler:
infinity
• Voltage
 09900-25008: Multi circuit tester set
 Tester knob indication: Voltage ()
– Between G wire or B wire and ground: approx. 0 V (When
ignition switch is ON)
Is check result OK?
YES Go to Step 2.
NO Repair or replace the defective wire harness.
Step 2
CKP sensor check
1) Measure the CKP sensor resistance.
 09900-25008: Multi circuit tester set
 Tester knob indication: Resistance ()
 CKP sensor resistance: 150 – 230 
2) Check the continuity between each terminal and ground.
 09900-25008: Multi circuit tester set
 CKP sensor continuity:  (Infinity)
Is check result OK?
YES Go to Step 3.
Replace the CKP sensor with a new one.
NO
(4-91)
(G – Ground)
(B – Ground)
1
1
2
2
V