Dtc "C41" (P230-H/L): Fp Relay Circuit Malfunction - Suzuki kq750 Service Manual

1A-67 Engine General Information and Diagnosis:

DTC "C41" (P230-H/L): FP Relay Circuit Malfunction

Detected Condition and Possible Cause
Detected Condition
No voltage is applied to fuel pump
although fuel pump relay is turned ON, or
C41
voltage is applied to fuel pump, although
fuel pump relay is turned OFF.
Voltage is applied to fuel pump although
H
fuel pump relay is turned OFF.
P0230
No voltage is applied to fuel pump
L
although fuel pump relay is turned ON.
Wiring Diagram
ECM
VM 20
19
FP
Troubleshooting
CAUTION
!
When using the multi-circuit tester, do not strongly touch the terminal of the ECM coupler with a
needle pointed tester probe to prevent the terminal damage or terminal bend.
NOTE
After repairing the trouble, clear the DTC using SDS tool. Refer to "Use of SDS Diagnosis Reset
Procedures (Page 1A-13)".
Fuel pump
To the combination
meter
Y/R
Y/Bl
Fuel pump relay
ECM coupler (Harness side)
• Fuel pump relay circuit open or short.
• Fuel pump relay malfunction.
• ECM malfunction.
• Fuel pump relay switch circuit shorted to power source.
• Faulty fuel pump relay (switch side).
• Fuel pump relay coil circuit open or short.
• Faulty fuel pump relay (coil side).
Engine stop
switch
R/B
O/W
I831G1110019-01
Possible Cause
Fuel
fuse
Ignition
fuse
Ignition
switch
B831G21104020
Main
fuse
I831G1110077-04