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4-70 FI SYSTEM DIAGNOSIS
Step 1
ECM power supply circuit check
1) Turn the ignition switch OFF.
2) Remove the seat. (8-5)
3) Disconnect the ECM couplers 1.
4) Check for proper terminal connection to the ECM couplers.
5) If connections are OK, Measure the voltage between R/Y and
ground.
09900-25008: Multi circuit tester set
09900-25009: Needle-point probe set
Tester knob indication: Voltage ()
ECM input voltage:
Battery voltage
(+ terminal: R/Y – - terminal: Ground)
Is check result OK?
Replace the ECM with a known good one, and
YES
inspect it again.
Check Fuel fuse for blowout. If fuse is not blown,
NO
repair or replace the R/Y wire.
DTC "C42" (P1650): IG SWITCH CIRCUIT MALFUNCTION
DETECTED CONDITION AND POSSIBLE CAUSE
DETECTED CONDITION
Ignition switch signal is not input to the ECM.
TROUBLESHOOTING
NOTE:
Refer to IGNITION SWITCH INSPECTION for details. (9-43)
1
1
POSSIBLE CAUSE
• Ignition system circuit open or short.
• ECM malfunction.
- Quick Links:
- Oil Filter Replacement
- Maintenance
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Troubleshooting
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Do you have a question about the GW250 and is the answer not in the manual?
Questions and answers
hello, i need to change my fuel pump. i removed all the bolts from the plate under the seat to access fuel pump but the plate still feels like it is bolted in. **** i missing a step or is something else holding plate to the seat? Thank You in advance
The fuel pump plate on a Suzuki GW250 could still be held on by silicone applied at the factory, as it is mentioned that Suzuki applies silicone in some places.
This answer is automatically generated
What is the color scheme for the isc valve on the 2015 Suzuki gw250f
The ISC valve wiring colors for the Suzuki GW250, as listed in the manual, are:
- W/R (White with Red tracer)
- B/R (Black with Red tracer)
- W/B (White with Black tracer)
- Lbl (Light Blue)
These colors represent the wiring connections for the ISC valve circuit in the GW250 model.
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@Mr. Anderson thank you sir, I really appreciate the help. Because the bike is no longer sold and my bike is a Canadian model. It's harder to find parts for. But it's a great bike and holds up to punishment very very well