Yamaha XVS13AWC Service Manual page 357

Fault
Item
code No.
Rear cylinder intake
25 air pressure sensor
(open or short circuit)
Rear cylinder intake
26 air pressure sensor
(hose system)
Lean angle sensor
30
(latch up detected)
Front cylinder ignition
33 coil
(faulty ignition)
Rear cylinder ignition
34 coil
(faulty ignition)
ISC valve (stuck fully
37
open)
Lean angle sensor
41
(open or short circuit)
Speed sensor
42
Neutral switch
Fuel system voltage
43
(monitoring voltage)
Error in writing the
44 amount of CO adjust-
ment on EEPROM
Vehicle system power
46 supply
(monitoring voltage)
ECU internal malfunc-
50 tion
(memory check error)
70 Engine idling stop
FUEL INJECTION SYSTEM
Symptom
Rear cylinder intake air pressure
sensor: open or short circuit de-
tected.
Rear cylinder intake air pressure
sensor: hose system malfunction
(clogged or detached hose).
The vehicle has overturned.
Malfunction detected in the prima-
ry wire of the front cylinder ignition
coil.
Malfunction detected in the prima-
ry wire of the rear cylinder ignition
coil.
Engine speed is high when the en-
gine is idling.
Lean angle sensor: open or short
circuit detected.
No normal signals are received
from the speed sensor.
Open or short circuit is detected in
the neutral switch.
The ECU is unable to monitor the
battery voltage
(an open or short circuit in the line
to the ECU).
Error is detected while reading or
writing on EEPROM (CO adjust-
ment value).
Power supply to the fuel injection
system is not normal.
Faulty ECU memory. (When this
malfunction is detected in the
ECU, the fault code number might
not appear on the meter.)
Engine has been left idling. (The
ECU automatically stops the en-
gine after 20 minutes if it is left
idling.)
8-35
Able / un-
Able / un-
able to
able to start
drive
Able Able
Able Able
Unable Unable
Able Able
(depending (depending
on the on the
number of number of
faulty cylin- faulty cylin-
ders) ders)
Able Able
(depending (depending
on the on the
number of number of
faulty cylin- faulty cylin-
ders) ders)
Able Able
Unable Unable
Able Able
Able Able
Able Able
Able Able
Unable Unable
Able Able