Yamaha MBK MW125 2014, Service Manual

Page: 373 / 380

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
9-6
03 Intake air pressure Displays the intake air pres-
sure. Operate the throttle while
pulling the brake lever and
pushing the start switch “
”.
(If the display value changes,
the performance is OK.)
05 Intake air temperature Displays the intake air tem-
perature. Compare the actually mea-
sured air temperature with
the meter display value.
06 Coolant temperature When engine is cold: Dis-
plays temperature closer to
air temperature.
When engine is hot: Displays
current coolant temperature. Compare the actually mea-
sured coolant temperature
with the meter display value.
07 Front wheel speed pulse Front wheel speed pulse
0–999 Check that the number in-
creases when the front wheel
is rotated. The number is cu-
mulative and does not reset
each time the wheel is
stopped.
08 Lean angle sensor Lean angle sensor output
voltage Remove the lean angle sen-
sor and incline it more than
50 degrees.
• Upright 0.4–1.4
• Overturned 3.7–4.4
09 Fuel system voltage
(battery voltage) Approximately 12.0 Compare the actually mea-
sured battery voltage with
the meter display value. (If
the actually measured bat-
tery voltage is low, recharge
the battery.)
20 Sidestand switch Extend and retract the side-
stand.
• Stand retracted ON
• Stand extended OFF
60 EEPROM fault code display —
• No history 00
• No malfunctions detected
(If the self-diagnosis fault
code 44 is indicated, the
ECU is defective.)
History exists
01(Data error for CO adjust-
ment value)
61 Malfunction history code dis-
play —
• No history 00
• History exists Fault codes 12–89
• (If more than one code
number is detected, the
display alternates every
two seconds to show all the
detected code numbers.
When all code numbers are
shown, the display repeats
the same process.)
Diagnostic
code No.
Item Meter display Procedure