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FUEL INJECTION SYSTEM
3 Malfunction of the rectifier/regulator. Defective → Replace.
Refer to "CHECKING THE
RECTIFIER/REGULATOR"
section.
Start the engine, set
the switch on the FI di-
agnostic tool sub-wire
harness to "OFF"
while the engine is
idling, and let the en-
gine continue to idle
for 5 seconds or more.
After completing the
above operation,
check whether a fault
code number is dis-
played.
Fault code number
is not displayed →
Service is finished.
Fault code number
is displayed → Re-
fer to item 4.
4 Defective AC magneto. Defective → Replace.
Refer to "CHECKING THE
AC MAGNETO" section.
Start the engine, set
the switch on the FI di-
agnostic tool sub-wire
harness to "OFF"
while the engine is
idling, and let the en-
gine continue to idle
for 5 seconds or more.
After completing the
above operation,
check whether a fault
code number is dis-
played.
Fault code number
is not displayed →
Service is finished.
Fault code number
is displayed → Re-
fer to item 5.
5 Malfunction in ECU. Replace the ECU.
Fault code No. 46
Symptom Power supply to the ECU is not normal.
Fail-safe system Able to start (depending on circumstances)
Able to drive vehicle (depending on circumstances)
Diagnostic code No. —
FI diagnostic tool dis-
play
—
Checking method —
Item Item/components and probable cause Check or maintenance job Checking method