3-14 FUEL SYSTEM (EFI)
EFI Servicing Precautions
Outline
When an abnormality in the system occurs, the FI
indicator light (LED) goes on to alert the rider on the
meter panel. In addition, the condition of the problem
is stored in the memory of the ECU (electronic control
unit). With the engine stopped and turned in the self-
diagnosis mode, the service code [A] is indicated by
the number of times the FI indicator light (LED) blinks.
When due to a malfunction, the FI indicator light (LED)
remains lit, ask the rider about the conditions [B] un-
der which the problem occurred and try to determine
the cause [C].
First, conduct a self-diagnosis inspection and then
a non-self-diagnosis inspection. The non-self-diag-
nosis items are not indicated by the FI indicator light
(LED). Don't rely solely on the EFI self-diagnosis
function, use common sense.
Even when the EFI system is operating normally, the
FI indicator light (LED) [A] may light up under strong
electrical interference. No repair needed. Turn the
ignition switch OFF to stop the indicator light.
When the FI indicator light (LED) goes on and the
motorcycle is brought in for repair, check the service
codes. When the repair has been done, the light (LED)
doesn't go on. But the service codes stored in memory
are not erased to preserve the problem history, and
the light (LED) can display the codes in the self-diag-
nosis mode. The problem history is referred when solv-
ing unstable problems.
When the motorcycle is down, the vehicle-down sen-
sor is turned OFF and the ECU shuts off the fuel injec-
tors and ignition system. The FI indicator light (LED)
blinks but the service code cannot be displayed. The
ignition switch is left ON. If the starter button is pushed,
the electric starter turns but the engine doesn't start.
To start the engine again, raise the motorcycle, turn
the ignition switch OFF, and then ON. The vehicle-
down sensor is turned ON and the light (LED) goes
OFF.
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