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section
P 5
651098/1098S - M.Y. 2007 - edition 00
Electric system
5 - Indicating devices
Checking the indicating system components
In the event of a fault, the internal connections of the device must be checked in all operating conditions. To do this, disconnect
the switch connector from the main wiring loom (Sect. P 1, Routing of wiring on frame).
Test the device using either an analogue or digital multimeter (Sect. P 9, Diagnostic instruments.
Notes
The same check can also be performed using the “DDS” tester (Sect. D 5, DDS tester).
Checking the left-hand handlebar switch
To remove the left-hand handlebar switch, undo the fixing screws (1) and disconnect it from the electrical system.
The colours mentioned in the following descriptions refer to the colours of the wires from the switch and not to the colours of
the wires of the main electrical system.
HORN button
Connect the terminals of a multimeter to the Black/White and Brown wires to check for electrical continuity, which must be
present when the HORN is pressed (see Sect. P 9, Diagnostic instruments, concerning operation of the multimeter) When the
HORN button is pressed, the resistance value shown by the multimeter should be close to zero and, if available, a continuity beep
should be heard. When the HORN button is not pressed, the resistance value should be infinite (there is no continuity as the
electrical contacts inside the pushbutton are open) and no continuity beep should be heard. If these conditions are not met,
the device must be replaced.
1
LY
Br
OFF
PUSH
GO
N
Gy
L
HI
LO
R
OFF
PUSH
TURN HORN DIMMER PASSING
--------
Br BY
N
O
A
B
MODE
Br BW
RB
RB
1
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