41" (P0230) Fp Relay Circuit Malfunction - Suzuki RM-Z250 Service Manual

12-56 FI SYSTEM DIAGNOSIS

"41" (P0230) FP RELAY CIRCUIT MALFUNCTION

DETECTED CONDITION
No voltage is applied to the fuel pump although FP
relay is turned ON.
ECM
Fuel
pump
relay

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. (12-21)
INSPECTION
Step 1
1) Stop the engine.
2) Remove the fuel tank. (13-2, -3)
3) Check the ECM coupler 1 for loose or poor contacts.
If OK, then measure the FP relay input voltage.
4) Remove the ECM bracket mounting bolts 2.
5) Disconnect the ECM coupler 1.
B/R
FPP
M
FP
R/B
POSSIBLE CAUSE
• FP relay circuit open or short.
• FP relay (ECM) malfunction.
Fuel pump
Regulator
/rectifier
1
Condenser
Magneto