Suzuki GW250 Service Manual page 200

– Between Bl/Y (#1) or Bl/G (#2) wire terminal and other ter-
minal at injector coupler: infinity
• Voltage
 09900-25008: Multi circuit tester set
 Tester knob indication: Voltage ()
– Between Bl/Y (#1) or Bl/G (#2) and ground wire: approx. 0
V (When ignition switch is ON)
Is check result OK?
YES Go to Step 3.
NO Repair or replace the defective wire harness.
Step 3
Injector check
1) Turn the ignition switch OFF.
2) Measure the injector resistance between terminals.
 09900-25008: Multi circuit tester set
 Tester knob indication: Resistance ()
 Injector resistance: 11.5 – 12.5  at 20 °C (68 °F)
3) If OK, check the continuity between each terminal and
ground.
 09900-25008: Multi circuit tester set
 Injector continuity:   (Infinity)
Is check result OK?
Replace the ECM with a known good one, and
YES
inspect it again.
NO Replace the injector with a new one. (5-18)
(Terminal – Terminal)
FI SYSTEM DIAGNOSIS 4-59
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2
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