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FUEL INJECTION SYSTEM
ECU'S SELF-DIAGNOSTIC FUNCTION
Engine trouble warning light indication and FI system operating conditions (normal mode)
Warning light
indication
ON and OFF *1
Blinking *2
Continuous ON
OFF *3
Main switch
OFF
Engine trouble
Light
warning light
OFF
FUEL INJECTION SYSTEM
FUEL INJECTION SYSTEM
ECU's operating
condition
Self-diagnostic func-
tion in operation
Warning control when
unable to start engine
Detecting malfunction
Possibly a blown warn-
ing light bulb or a mal-
function in power
supply system or ECU
Main switch
ON
Light ON for
Light
1.4 seconds
OFF
Initialize
FI operating condition
FI function in operation Able
Operation stopped
Gives driving instruc-
tions with substitute
characteristics in accor-
dance with the descrip-
tion of the malfunction.
*1
The warning light illuminates 1.4 seconds each
time the main switch is turned ON. The ECU
performs a self diagnosis during this time and
turns OFF the light thereafter.
*2
Warning control when unable to start engine
This control is effected when any one of the
conditions listed below is present and the
starter switch is turned ON:
a. Battery voltage below the specified value
(defective fuel injection system relay, engine
stop switch turned OFF, or drained battery)
b. One of the fault codes listed below has
been detected (self-diagnostic code 12, 19,
30, 33, 34, 41, or 50 is output):
(12: faulty crankshaft position sensor sig-
nal)
(19: open circuit in sidestand input line)
(30: motorcycle has fallen over)
(33, 34: faulty ignition)
(41: open or short circuit in lean angle cut-
off switch)
(50: ECU memory check error)
– 26 –
FI
Starting and driving
Unable
Able/Unable depend-
ing on self-diagnostic
fault code