FI
ECU’S SELF-DIAGNOSTIC FUNCTION
The ECU is equipped with a self-diagnostic function in order to ensure that the engine control sys-
tem is operating normally. If this function detects a malfunction in the system, it immediately oper-
ates the engine under substitute characteristics and illuminates the engine trouble warning light to
alert the rider that a malfunction has occurred in the system. Once a malfunction has been detected,
a fault code is stored in the memory of the ECU.
• To inform the rider that the fuel injection system is not functioning, the engine trouble warning light
flashes when the start switch is being pushed to start the engine.
• If a malfunction is detected in the system by the self-diagnostic function, this mode provides an
appropriate substitute characteristic operation, and alerts the rider of the detected malfunction by
flashing an engine trouble warning light.
• The fault code number appears from the lowest value in order of precedence on the LCD meter.
Once a fault code has been displayed, it remains stored in the memory of the ECU until it is
deleted.
Engine trouble warning light indication and FI system operating condition
* The warning light flashes when any one of the conditions listed below is present and the start
switch is pushed.
The period for flashing is 160 ms. (Period during SELF-DIAGNOSTIC is 1000 ms.)
Checking for a defective engine trouble warning light bulb
The engine trouble warning light comes on for 1.4 seconds after the main switch has been turned
“ON” and when the main switch is being turned. If the warning light does not come on under these
conditions, the warning LED may be defective.
Warning light indication
ECU’s operation
FI operation
Vehicle operation
Flashing*
Warning provided when
unable to start engine
Operation stopped
Unable
Remains ON
Malfunction detected
Operated with
substitute
characteristics in
accordance with the
description of the
malfunction
Able/Unable depending
on the self-diagnostic
fault code
11: Cylinder identification sensor
30: Oil pressure dropped.
12: Crankshaft position sensor
50: ECU internal malfunction
(memory check error)
Main switch
OFF
Main switch
ON
Light ON for
1.4 seconds
Light
OFF
Light
OFF
Engine trouble
warning light
FUEL INJECTION SYSTEM
60
Содержание RX10LTGTYL
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