Yamaha X94 Series Service Manual page 77

Symptom
The 3 assist mode lamps, the
"%" lamp, the "km" lamp, and
the "km/h" lamp are flashing
alternately, and "Er" is dis-
playing on the LED type dis-
play unit.
Alternately
flashes
All segments of the assist
mode display and battery
capacity indicator are flash-
ing alternately, and "Er" is
displaying on the speedome-
ter section of the LCD type
display unit.
Alternately
flashes
One of the assist mode
lamps in the display unit 1 is
flashing.
1
or
1
Check point/method
Check the error log according
to the display on the display
unit when the error occurred.
(See Chapter 2 "How Drive
Unit malfunctions are dis-
played".)
Speed sensor set
(See Chapter 2 "How speed
sensor malfunctions are dis-
played".)
Troubleshooting
Possible cause/check Part replacement/action
Drive Unit assembly error.
Check "List of error codes
and corresponding power
assist operations".
A state persists where the
speed sensor unit cannot
detect the signal correctly.
4-4
Service
Data
Replace parts according to
"List of error codes and corre-
sponding power assist opera-
tions".
Inspect the speed sensor set
lead wires, pick up, and mag-
net sensor spoke type.