Suzuki 2009 LT-A500XP, Service Manual

Page: 140 / 624

1A-69 Engine General Information and Diagnosis:
C41 (Use of mode select switch)
P0230-H (Use of SDS)
Step Action Yes No
1 1) Remove the seat. Refer to “Seat Removal and
Installation: in Section 9D” .
2) Turn the ignition switch to OFF.
3) Check the FP relay coupler for loose or poor contacts.
If OK, then check the FP relay. Refer to “Fuel Pump
Relay Inspection: in Section 1G” .
Is the FP relay OK?
• Y/Bl or O/W wire
open or shorted to
ground, or poor “19”
connection.
• Y/R or R/B wire open
or shorted to ground,
or poor “20”
connection.
• If wire and
connection are OK,
intermittent trouble or
faulty ECM.
• Recheck each
terminal and wire
harness for open
circuit poor
connection.
• Replace the ECM
with a known good
one, and inspect it
again. Refer to
“ECM
Removal and
Installation: in
Section 1C”
.
Replace the FP relay
with a new one.
Step Action Yes No
1 1) Remove the seat. Refer to “Front Side Exterior Parts
Removal and Installation: in Section 9D” .
2) Turn the ignition switch to OFF.
3) Check the FP relay coupler for loose or poor contacts.
If OK, then check the FP relay. Refer to “Fuel Pump
Relay Inspection: in Section 1G” .
Is the FP relay OK?
• Y/R wire shorted to
power source.
• Y/Bl wire shorted to
ground.
• If wire and
connection are OK,
intermittent trouble or
faulty ECM.
• Recheck each
terminal and wire
harness for open
circuit and poor
connection.
• Replace the ECM
with a known good
one, and inspect it
again.
Replace the FP relay
with a new one.
I931H1110065-01