18 LT-R450/ZK9 (’09-MODEL)
“C41” (P0230) FP RELAY CIRCUIT MALFUNCTION
INSPECTION
Step 1 (When indicating C41:)
1) Turn the ignition switch OFF.
2) Remove the front fender. (LT-R450K8 7-6)
3) Check the ECM coupler for loose or poor contacts.
If OK, then check the FP relay input voltage.
4) Disconnect the ECM coupler.
5) Insert the needle pointed probe to the ECM coupler.
6) Measure the voltage between terminal D and ground.
FP relay input voltage: Battery voltage
09900-25008: Multi-circuit tester set
09900-25009: Needle pointed probe set
Tester knob indication: Voltage ()
DETECTED CONDITION POSSIBLE CAUSE
No voltage is applied to fuel pump although FP relay
is turned ON.
• FP relay circuit open or short.
• FP relay (ECM) malfunction.
1
1
V
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