-The diagnostic LED also works as a deterring
blinker. This function is activated every time the
key switch is turned to "OFF" and it remains active
48 hours so as not to damage the battery charging
process.
When the key switch is turned to "ON", this blinking
function is deactivated. A flash then confirms the
system has switched to "ON".
The duration of the flash depends on the electronic
control unit program (see figure).
If the led turns off and remains so when switching
to "ON", it is necessary to check if there is battery
voltage in the electric control unit.
Connect the immobilizer tester to the diagnosis
socket (see ET4 125 manual) located below the
spark plug inspection port.
If the serial LED remains off, proceed to check the
control unit supply as follows:
- Disconnect the control unit connector and check
if:
- There is battery voltage between terminal No. 4
(Red/Black) and the ground lead.
- There is battery voltage between the terminal No.
4 (Red/Black) and terminal No. 8 (Negative) as
shown in the figure.
If no voltage is detected, check the wiring to the
battery positive lead and see if the 15A fuse is in
good conditions (see the start-up diagram)
- There is battery voltage between terminals No. 5
and No. 8 with the key switch set to "ON", the side
stand retracted and the emergency switch set to
"RUN".
If no faults are found, replace the control unit; oth-
erwise check the wiring and the following compo-
nents:
- Engine stop remote control;
- Emergency cut-off switch;
- Side stand contacts;
X9 Evolution 125 Electrical system
ELE SYS - 67
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