4-48 FI SYSTEM
“C41” FP RELAY CIRCUIT MALFUNCTION
INSPECTION
“C42” IG SWITCH CIRCUIT MALFUNCTION
* Refer to the IGNITION SWITCH INSPECTION for details.
• Remove the fuel tank and air cleaner box. (#4-52 and -60)
• Inspect the ignition switch. (#7-32)
DETECTED CONDITION POSSIBLE CAUSE
No signal from fuel pump relay. • Fuel pump relay circuit open or short.
• Fuel pump relay malfunction.
• ECM malfunction.
• Remove the seat. (
:
6-4)
1
Ye s
No
Turn the ignition switch OFF.
Check the FP relay coupler for loose or poor contacts.
If OK, then check the insulation and continuity. Refer to
page 4-51 for details.
Y/B or O/W wire open or shorted to ground, or poor
V
or
R
connection. (
:
4-22)
If wire and connection are OK, intermittent trouble or faulty
ECM.
Recheck each terminal and wire harness for open circuit and
poor connection. (
:
4-5)
Replace the ECM with a new one,
and inspect it again.
Replace the FP relay with
a new one.
ECM coupler
1
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