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FI SYSTEM DIAGNOSIS 4-83
“C41” (P0230-H/L) FP RELAY CIRCUIT MALFUNCTION
INSPECTION
Step 1 (When indicating C41:)
1) Turn the ignition switch OFF.
2) Lift and support the fuel tank. (5-3)
3) Check the FP relay coupler for loose or poor contacts.
If OK, then check the FP relay. (5-7)
DETECTED CONDITION POSSIBLE CAUSE
C41 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.
• Fuel pump relay circuit open or short
• Fuel pump relay malfunction
• ECM malfunction
P0230
H
Voltage is applied to fuel pump although
fuel pump relay is turned OFF.
• Fuel pump relay switch circuit shorted to power
source
• Faulty fuel pump relay (switch side)
L
No voltage is applied to fuel pump
although fuel pump relay is turned ON.
• Fuel pump relay coil circuit open or short
• Faulty fuel pump relay (coil side)
ECM
Side-stand
relay
Engine stop
switch
Fuel pump
relay
Fuel pump
Ignition
switch
M
Y/R
VM
FP Relay
R/BI
O/W
Y/B
To side-stand
switch
1