Suzuki VL800 Service Manual page 434

14-82 VL800K5 ('05-MODEL)
"C41" (P0230) FP RELAY CIRCUIT MALFUNCTION
DETECTED CONDITION
No voltage is applied to fuel pump, although fuel
pump relay is turned ON, or voltage is applied to fuel
pump, although fuel pump relay is turned OFF.
ECM
VM
FP Relay
INSPECTION
Step 1
1) Remove the secondary gear case cover 1.
2) Turn the ignition switch OFF.
3) Check the FP relay coupler for loose o poor contacts.
4) If OK, then check the insulation and continuity. Refer to Page
96 for details.
Is the FP relay OK?
• Yellow wire open or shorted to ground, or poor
e connection.
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
YES
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO Replace the FP relay with a new one.
5) After repairing the trouble, clear the DTC using SDS tool.
($14-39)
Fuel pump
Y/R
Y
Fuel pump relay
POSSIBLE CAUSE
• Fuel pump relay circuit open or short.
• Fuel pump relay malfunction.
• ECM malfunction.
Engine stop
switch
To GP
switch
Side-stand elay
R/Bl
O/W
1
1
Ignition
switch
Wire harness side