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Troubleshooting The Dfi System; Outline - Kawasaki J300 Service Manual

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Troubleshooting the DFI System

Outline

When a problem occurs with DFI system, the yellow en-
gine warning indicator light (LED) [A] blinks on to alert the
rider.
And the engine warning symbol [A] and the service code
(error code) [B] are displayed on the LCD by the number of
two digits.
When the service code is displayed, for first ask the rider
about the conditions [A] of trouble, and then start to deter-
mine the cause [B] of problem.
As a pre-diagnosis inspection, check the ECU for ground
and power supply, the fuel line for no fuel leaks, and for
correct pressure. The pre-diagnosis items are not indicated
by the yellow engine warning indicator light (LED).
Don't rely solely on the DFI self-diagnosis function, use
common sense.
Even if the repair has been done, the service codes stored
in memory of the ECU are not erased to preserve the prob-
lem history. But, the service code can be erased with the
specified procedures.
When the motorcycle is down, the vehicle-down sensor
operates and the ECU shuts off the fuel pump relay, fuel
injectors and ignition system. The ignition switch is left on.
If the starter button is pushed, the electric starter turns but
the engine does not start. To start the engine again, raise
the motorcycle, turn the ignition switch off, and then on.
Much of the DFI system troubleshooting work consists
of confirming continuity of the wiring. The DFI parts are
assembled and adjusted with precision, and it is impossible
to disassemble or repair them.
FUEL SYSTEM (DFI) 3-17

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This manual is also suitable for:

J300 absJ300 2017Sc300ch 2017

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