Yamaha Fz 09 2014 Manual

							FUEL INJECTION  SYSTEM 
Fault code No. 42 
A Speed sensor: no normal  signals are rece ived from the  speed 
sensor. 
I tem 
B Neutral switch: open or short circuit Is detected. 
c C lu tc h sw itch:  open or short  circuit is  detected. 
Meter 
display Neutral  •  ON 
(when  the transm ission  is in neutral) 
•  OF F 
(when  the transm ission  is  in  gear or the clutch  lever 
released) 
Procedure Shift the  transm ission. 
Item Probable cause of Maintenance job Confirmation of service 
malfunction and check comple tion 
1  Locate  the malfunction. Execute  the diagnost ic Value does  not increase --t 
mode.  (Code No. 07) Go to item  2 in  section  A for 
Ro tate  the rear  wheel  by  the  speed  sensor . 
hand  and check  that the indi-
cated 
value i ncreases. 
Execute  the diagnost ic 
In correct indication --t Go to 
mode.  (Code No. 21)  item  2. 
When  the 
transmission  is  in 
neutra l:  O N 
When  the transmiss ion is  in 
gear  with the 
clutch lever 
released : OFF 
When  the transmission  is  in In correct indication -> Go to 
gear  with the clutch  lever item  2 in  section C for  the 
squeezed  and 
the sidestand clutch sw itch. 
i s  retracted: 
ON 
2  Connection of neutral switch Improper ly connected --t Execute  the  diag nostic 
coup ler. Connec t the coup ler securely mode.  (Code No. 21) 
Check  the 
locking 
condit ion  or replace the wire  harness.  When the transmission  is  in 
of the  coupl er.  neutral: ON 
Disconnec t the coup ler and  When the transmission  is  in 
check  the pi
ns (bent or bro - gear with the clutch lever 
ken 
termina ls a nd locking released: OFP 
cond it ion of the p ins). Correc t ind ication --t Go t o 
item  9. 
Incorrect indication --t Go to 
ite m  3. 
8-66  
						

							FUEL INJECTION  SYSTEM 
Fault code No. 42 
A Speed sensor : no normal 
signals are rece ived from the  speed 
sensor. 
Item 
B Neutral switch: open or short circuit Is detected. 
c C lu tc h sw itch:  open or short  circuit is  detected. 
3 Connect ion of wire  harness Improper ly connected -t Execu te  the diag nostic 
ECU  coupler. Connect  the 

coupler  securely 
mode. (Code  No. 21) 
Check  the 
locking condition  or replace the  wire  harness.  When the  transmission  is  in 
of the co upler .  neutral: ON 
Disconnect  the coupler and  When the transm ission  is  in 
check  the pins  (bent 
or bro-
gear with the clu tc h lever 
ken termina ls and lock ing rel eased : OFP 
condit ion of the  pins).  Correct ind icat ion -t Go to 
item  9. 
Incorrect indication -t Go to 
item  4. 
4  Wire harness  continui
ty. Open or short circu it -t Execu te  the diag nostic 
Rep lace 

the  wire  harness.  mode. (Code  No. 21) 
Between 
re lay un it coup ler When  the  tra nsmission  is  in 
and  gear  posit ion  sensor 
neutral:  ON 
coup ler. 
When  the transm ission  is  in 
sky 
b lue-sky  blue gear  with the  clu tch  lever 
Between re lay un it coup ler released : OFF 
and ECU  coupler Correct  ind icat ion -t Go to 
b lack/ye llow-black/yel low ite m  9. 
Incorrect indication -t Go to 
item  5. 
5  Defective 
relay un
it. 
Check the relay unit.  Execu te  the  diag nostic 
Refer  to 
CHECK ING THE  mode. (Code No. 21) 
RELAY 
UNIT  (DIODE ) on  When the  tra nsmission  is  in 
page  8-99. 
neutral:  ON 
When the transm ission  is  in 
gear  with the 
c lutch  lever 
released: OFF  
Correct  ind icat ion -t Go to 
ite m  9. 
Incorrect indication -t Go to 
item 
6. 
6  Defective 
gear pos ition sen- Check  the gear  position sen-
Execu te  the  diag nostic 
sor 
(neutra l circu it).  sor.  mode. (Code No. 21) 
Refer  to 
CHECK ING THE  Whe n  th e  tra nsmission  is  in 
G EAR 
POSITION  SENSOR neutral:  ON 
on page 8-110. When  the transmission  is  in 
gear  with the 
clu tch  lever 
released: OFF  
Correct  ind icat ion -t Go to 
item  9. 
Incorrect indication -t Go to 
item 
7. 
8-67  
						

							FUEL INJECTION  SYSTEM 
Fault code  No. 42 
A Speed sensor : no normal signals are  re c e i ved from the speed 
sensor. 
Item 
B Neu tral sw itch : open or short  circuit Is detected . 
c Clu tch sw itch:  open or short  circuit is  de tected. 
7  Faulty  sh i
ft d rum (n eutra l  Malf unct ion -> Repla c e th e  Execu te  the diag nost ic 
detecti on area).  sh if t  drum.  mode. (Code  No. 21) 
Refe r  to T RANS MISSION  Wh
en  th e  tra nsmiss ion is  in 
on page  5-76. neutr al: ON 
Wh

e n 
the  tra nsm ission  is  in 
gear wit h  the c lu tch  lever 
rele ased : O FP  
Correct  ind ication -> Go to 
item  9. 
Inc orrec t indicat ion -> Go to 
it em  8. 
8 
Malf unc tio n in ECU.  Repla ce the ECU. 
Refer to R EPLACING THE 
ECU (eng ine contro l u nit)  on 
p age  8-93. 
9 
Del e te th e fau lt code .  Turn the main  switch  to ON, 
and  then  rotate  the rear 
whee l by hand. 
Start th e  engi n

e,  and  inpu t 
th e 
ve hic le speed s ig nals by 
operating  the 
vehic le at 20 to 
30 k m/h (19  mi/h). 
T he 
fau lt c ode can a ls o be 
delete by act ivati ng  th e  d iag -
nostic  mode and 
selecting 
d iagnostic cod e  nu mber 63. 
Fa ult 
code  No. 42 
A Speed sensor : no normal signals are  re c e i ved from the speed 
senso
r. 
I t em B Neutr al swit ch: open  or short  cir cuit  is  detected. 
c Clutch swi tch : open or short  circuit Is detected . 
Fail-safe system Ab le to  start  eng ine 
A ble to  drive ve hicle 
Diagnostic  code No. 21 
Meter display  C
lu tch sw itch 
•  ON  (when  the clu tch lever is squeezed  with  the t ransm iss ion 
in  ge
ar and  whe n the sides tand  is  retrac ted) 
•  O FF (w h

e n  the 
cl ut ch  lever is  squeezed  with  the transmiss io n 
in  ge
ar and  whe n the sides tand  is  ex tended) 
8 -68  
						

							FUEL INJECTION  SYSTEM 
Fault code No. 42 
A 
Speed sensor : no normal  signals are rece ived from  the speed 
sensor. 
Item B Neutra l switch:  open or short  circuit  is  detected. 
c Clutch switch: open or short circuit Is detected. 
Procedure Operate  the transmiss ion, clutch  lever , and  sides tand. 
Item  Probable cause of Maintenance job Confirmation of service 
malfunction and check completion 
1  Locate  the malfunction. Execute  the diagnost ic Value does not inc rease ~ 
mode.  (Code No. 07) Go to item  2 in  sect ion  A for 
Rota te the  rear 
wheel by  the speed  sensor. 
h a nd  and  check  th
at the indi· 
cated value increases. 
Execute  the diagnost ic 
Incorrect indication ~ Go to 
mode.  (Code No. 21)  item  2 in  sect ion B f
or the 
When  the transmissio n is  in 
neutral switch. 
n eutra l:  ON  
When  the transm ission  is  in 
gear  with the 
clutch  lever 
re lease
d: OFF  
When  the transmissio n is  in I ncorrect 

indication 
~ Go to 
gear  with the 
clutch  lever item 2. 
squeezed  and the s idestand 
retracted: 
ON 
2 C lut ch  lever adjus tmen t.  Re
fe r  to A DJUST ING THE 
Execu te  the  diag nostic 
CLUTCH  LEVER FR EE  mode. (Code No. 21) 
PLAY  on page 
3· 11.  When the clutch lever is 
released:  OFF  
When  the clutch lever is 
squeezed : 
ON 
Correc t indication~ Go to 
ite m  9. 
Inco rrec t indication ~ Go  to 
i tem  3. 
3  Connect
ion 
of clutch sw itch Improper ly connected ~ Execute  the diagnostic 
coup ler. Connect  the coupler securely mode.  (Code No. 21) 
Check  the 
locking condit ion or replace the  wire  harness . When  the clutch lever is 
of the coup ler. released:  OFF 
Disconnect  the coupler and  When 
the clutch  lever is 
check  the pi
ns (bent or bro · squeezed: ON  
ken terminals and lock ing Correct indication~ Go  to 
cond ition 
of t he  pin s).  item  9. 
Incorrect indication ~ Go  to 
item  4. 
8-69  
						

							FUEL INJECTION  SYSTEM 
Fault code No. 42 
A Speed sensor: no normal  signals are rece ived from the  speed 
sensor. 
Item B Neutra l switch:  open or short  circuit 

i s  detected. 
c Clutch switch: open or short circuit Is detected. 
4 Connect ion of wire  harness Improper ly connected -t Execu te  the diag nostic 
ECU 
coup ler. Connect  the coupler securely mode. (Code  No. 21) 
Check  the 

locking 
cond ition  or replace the  wire  harness.  When the clutch  leve r is 
o f  the 
co upler. released : OFP 
D isconnect  the coupler and  When the clutch lever is 
check  the pins  (bent 
or bro-
squeezed: ON 
ken termina ls and lock ing Correct ind ica tion-t Go  to 
condit ion 
of the  pins).  item 9. 
Incorrect indication -t Go to 
ite m  5. 
5  Wire harness  contin uity . 
Open or short  circu it -t Execute  the  diag nostic 
Rep lace the  wire  harness.  mode. (Code No. 21) 
Between 
ECU  coupler and  When the clutch lever is 
relay unit co upl er. released:  OFP 
b lack/ye llow -black/yel low 
When  the clutch lever is 
Between 

re lay 
un it coup ler squeezed: ON 
and clutch sw itch coup ler. Correct ind ica tion-> Go  to 
black/ye llow -black/yel low ite m  9. 
black/red-b lack/red  I

nco rrec t 
indication -t Go to 
ite m 
6. 
6  Defect
ive relay unit.  Check the relay u nit.  Execute the diagnost ic 
Re f
er to CHECK ING THE  mode. (Code  No. 21) 
RELAY 
UNIT  (DIODE) on  When 
the clutch  lever 

is 
page  8-99 . 
released:  OFF  
When  the clutch lever is 
squeezed: 
 ON 
Correct ind icat ion-t Go  to 
ite m  9. 
Incorrect indication -t Go to 
item 
7. 
7  Defec
tive clu tch switc h. 
Check the clutch switch.  Execu te  the  diag nostic 
Rep lace if 

defect ive.  mode. (Code No. 21) 
Refer  to 
CHECK ING THE  Whe n  the clu tch  lever is 
SW ITCHES on  page  8-89. released:  OFF  
When  the clutch  lever is 
squeezed: 
 ON  
Correc t ind ica tion -> Go to 
item  9. 
Incorrect indication -t Go to 
item  8. 
8 
Malfunct ion in ECU.  Replace the ECU. 
Re fe r  to R EPLACING THE 
ECU (eng ine contro l unit)  on 
page  8-93. 
8-70  
						

							FUEL INJECTION  SYSTEM 
Fault code No. 42 
A Speed se nsor : no norma l signa ls are  re c e ived fr om  the speed 
se
nso r. 
It em B Ne utr al swi tc h : open  or short  circui t is  detec ted. 
c Clutch switch: open or short circuit Is detected . 
9 
De le te the fault code.  Turn the main  switch  to ON, 
and  then  rotate  the rear 
whee l by  ha nd. 
S ta rt the  eng in e , a nd  inpu t 
t h e 
vehicle speed signals by 
o pera ting  the 
vehic le a t 20 to 
30 k m/h  (19 mi/h) . 
T he 
fau lt code  can also be 
dele te by  activating  the  diag-
nostic  mode and 
se lec ting 
d iagnostic  code number 63. 
Fa u
lt code No. 43 
Item  Fuel system v
oltage : Incorrect voltage supplied to the fuel 
injector and fu el pump. 
Fail-safe system A ble t o s tart  eng ine 
Ab le to  drive vehic le 
D iagnostic code N o. 09,50 
09 Meter disp lay  Fuel sys tem vo lt age (battery vo ltage) 
A pproximately  12.0 
Procedure  Set 
the 

sta rt/ eng ine  sto p sw itch 
to(), an d then  compare the 
ac tually measured  battery voltage w ith  the  meter disp lay value . (If 
th e ac tually meas ured battery voltage is lo w , recharge  the battery .) 
50 Actuation Actua tes  the relay u n it  five  times  at one-seco nd interva ls. 
I lluminates 
th e  eng in e tro ub le warning li g ht. 
Procedure  Check 
that the re lay un it  is  ac tua ted  five times by li sten ing for the 
o pe rat ing  sou nd. 
Item  Probable cause of Maintenance job Confirmation of service 
malfunction and check com ple tion 
1  Connec tion  of relay unit  cou-Improper ly connec ted -+ S ta rt th e e ngine  and let it id le 
pie r.  Connec t the cou pler  secu rely fo r app rox imately 5  seco nds. 
C heck  the 
locking cond it io n 
or replace the  wir e  harness. F a ult code  num be r 

i s 
not  dis-
of th e co up ler. played -+ Serv ice  is  fi n is h ed. 
D is con nec t the 
coup ler and Fault code  numbe r  is d is -
chec k the  pins (be nt or b ro -p layed -+ Go  to item 2. 
k en term ina ls and lock in g 
condition  of the  pins). 
8-71  
						

							FUEL INJECTION  SYSTEM 
Fault code No. 
43 
Item Fuel syste m voltage: incorrect voltage supplied to the fue l 
In
jector and fuel pum p. 
2 Co nnec tio n of wi re  ha rness Improperly co nnec ted -t S tart the  engine  and let it id le 
ECU  coup ler. 
Connect  the coupler securely fo r approximately 5  seconds. 
Check  the 

loc king 
cond iti o n or replace the  wir e  harness. Fau lt code  numbe r  is not d is · 
o f  the co up ler .  p
layed -t Serv ice i s  fin is h ed. 
D isconnect  the 
coupler and Fault code  number  is 

dis -
c h eck  the pi
ns (be nt or b ro -p layed -t Go to  item  3. 
k e n 
termina ls a nd lock ing 
cond it ion of the  pins). 
3  W ir e  ha rness  contin u i
ty. Ope n or  sh o rt  circ uit -t S tart the  engine  and let it id le 
Rep lace 
the  wire  harness.  fo r approx imately 5 seconds. 
Be twee n battery  and starter 
Fau lt code  numbe r 

i s 
not  dis -
relay  (fuel inject ion system played -t Serv ice i s  fin is h ed. 
fuse). 
Fau lt code  number  is 

dis -
r ed -
red played -t Go to  item 4. 
Betwee n sta rter relay  (fuel 
injection  system fu se)  and 
relay u nit co up ler. 
r ed-red 
Between 

re lay 
un it coup ler 
and ECU  coupler. 
r ed/blue-red/b lue 
b lue/yel low -blue /yel low 
4  De
fec tive relay un it. 
Execute  the diagnos tic S tart the  engine  and let it id le 
mode.  (Code No. 50) fo r approx imately 5  seconds. 
No operating  sound -> Fau lt code  number  is  not  dis-
Rep lace the relay u nit. p layed -t Serv ice i s  fin is h ed. 
Fau lt code  number  is 

dis -
p layed -> Go to  item  5. 
5  De
fec ti
ve relay un it.  Execute the diagnos tic S tart the  engine  and let it id le 
mode.  (Code No. 09) for approx ima tely 5  seco nds. 
Fue l system voltage is be low  F
au lt code  numbe r 

is 
not  dis-
3 V 
-t Rep lace t h e re lay un it. played -t Serv ice i s  fin is h ed. 
Fau lt code  number  is  dis-
p layed -t Go to  item 6. 
6 Malfunc tion in ECU.  Replace th e ECU. 
Re fe r  to R EPLACING THE 
ECU (eng ine co ntr ol u nit)  on 
page  8-
93. 
Fault code No. 44 
Item  EEPROM fault code number: an error Is detected while read
· 
ing or writing on EEPROM. 
Fail-safe system Able/Unab le to  start  engine 
Ab le/Unab le to  drive veh ic le 
Diagnostic code No. 60 
8-72  
						

							FUEL INJECTION  SYSTEM 
Fault code No. 44 
It em  EEPROM fault code numbe
r:  an error is  detected while read -
Ing or writing on EEPROM . 
Meter display EEPROM  fa ult code d isplay 
•  00 
(no  histo ry) 
• 01-03:  Cylinder  fault code  number  (history  exists) 
If more  than one cylinder is  defective , the d isplay sw itches 
every  two seconds  to sh ow  the 
cylinder  fault code  numbers of 
all defec tive cylinde rs in  a  repeati ng cyc le. 
• 
1 1: Data  error for ISC (id le speed contro l)  learning  valu es (his -
to ry  ex ists) 
Procedure -
Item  Probable cause of Maintenance job Confirmation of service 
malfunction and check completion 
1  Locate  the malfunction. Execute  the diagnost ic -
mode.  (Code No. 60) 
2 11 is  ind icated  in diagnostic  Turn  the main  sw itch  to  Turn the main  switch  to ON . 
mode  (code No. 60). OFF . Fault code  numbe r  is not  dis -
E E

P ROM 
data  error fo r ISC  played -+ Serv ice  is  fin is h ed. 
(id le speed control)  learning Fault code  number  is  dis -
values.  played -+ Rep eat  item  1 . If 
th e  same  number  is  ind i-
cated , 
go to item  3. 
3 
Malfunc tio n in ECU. Rep lace the ECU. 
Re fer to REPLACING THE 
ECU (eng ine co ntro l unit)  on 
page  8-93. 
Fault code No. 46 
Item Charging voltage is abnormal. 
Fail-safe 
s ystem Ab le t o  start  eng ine 
Ab le to  drive vehic le 
Diagnostic code No. -
Me te r display -
Procedure -
Item  Probable cause of Maintenance job Confirmation of service 
malfunction and check completion 
1 Malfunc tio n in  charging  sys-Check  the charging  system. Start  the engine  and let it idle 
tern.  Refe r  to CHARGING fo r approx imately 5  seco nds. 
SYSTE M on  page  8-13. Fau lt code  numbe r is  no t dis -
De fect i
ve rec tifier/ regula tor played -+ Serv ice  is  fin is h ed. 
or  AC  magneto 
-+ Replace.  F
au lt code  numbe r  i
s d is-
De fect i
ve connect ion  in  the played -+ Repeat  the  ma in te -
charg i
ng system  circuit -+ nance  job. 
Proper ly c onnect or replace 
the  wir e  har ness . 
8-73  
						

							FUEL INJECTION  SYSTEM 
Fault code No. 50 
Faulty ECU memory.  (When this malfunction is detected in 
Item the ECU, the fault code number might not appear on the 
meter display.) 
Fail-safe 
system Able /Unab le to start  engine 
Able/Unab le to drive veh icle 
Diagnostic  code No. -
Meter display -
Procedure -
Item  Probable cause of mal-Maintenance job Confirmation of service 
function and check completion 
1 Malfunct ion in ECU. Replace the ECU. Turn  the main  switch to ON. 
Refer  to  REPLACING TH E Check that  the fault code 
ECU  (engine 
contro l u n it) on  numbe r is  not disp layed. 
page  8-93. 
TIP 
Do not perform this  proce-
dure  wi
th  the ma in  switch 
turned to  ON . 
Fault 
code No. 59 
Item  Accelerator position sensor: 
open or short circuit detected. 
Fail-safe system Able/Unab le to start  engine 
Ab le/Unab le to drive vehic le 
Diagnostic  code No. 14, 15 
1 4 
Meter display Acce lerator posit ion sensor signa l 1 
• 12-22 (fully closed posi tion) 
• 97-107 (fully open  position) 
Procedure 
• Check  with throttle grip  in fully  closed pos ition. 
• Check  with throttle grip in fully open  position. 
15 Meter display Accelera tor posit ion sensor signal 2 
• 10-24 (fully  closed posit ion) 
• 95-109 (fully open  position) 
Procedure 
• Check  with thr ottle grip in fully  closed posit ion. 
• Check  with throttle grip in fully open  position. 
Item  Probable cause of Maintenance job Confirmation of service 
malfunction and check completion 
8-74  
						

							FUEL INJECTION  SYSTEM 
Fault code No. 59 
Item Accelerator posit ion sensor : open or short circ uit detected. 
1  Connection of accelerator  Improperly co nnected ~ Turn  the main switch  to ON. 
posit ion sensor coupler. Con nect the  coup ler  securely  Fault code  number  is  no t dis-
Check  the 
locking condition  or replace the wire  harness. played ~ Service  is  fi n ished. 
of the coupler.  Fault code  number is  dis-
D isc onn
ect the coup ler and played ~ Go to  item 2. 
check  the pins (bent or bro -
ken 
termina ls a nd locki ng 
cond iti o n of the  pins). 
2  Connect io n 
of wire  harness Improper ly co nnected ~ Turn  the main sw itch  to ON. 
ECU  coup ler. 
Connec t the 

coup ler secure
ly Fault code  number  is not dis-
Check  the 
locking condition  or replace the wire  harness. played ~ Service  is  fi n ished. 
of the coupler.  Fault code  number is  dis-
D isc onn
ect the coup ler and played ~ Go to  item 3. 
check  the pins (bent or bro -
ken 
termina ls a nd lock ing 
cond iti o n of the  pin s). 
3  Wire 
harness  continuity . 
Open or short circuit ~ Turn the main  switch  to ON. 
Rep lace 
the  wire  harness. 
Fault code  number  is not dis-
Between 
accelerator posi-p layed ~ Service  is  fi n ished. 
t ion  sensor 
coupler and ECU  Fault code  numbe

r is  dis-
coup ler.  p
layed ~ Go to  item 4. 
b lack/blue -black/blue 
white-white 
black-black 
b l
ue-blue 
4 Ins talled cond iti o n of acce le r-
Improper ly  in stalled se nsor  Turn the  mai n sw itch  to ON . 
ator  position  sensor. ~ Reinstall or adjust  the Fault code  number  is  no t dis-
Check  for 
looseness or sensor. p layed ~ Service  is  fin ished. 
pinching .  Re
fe r  to 
ADJU STING THE Fault code  number  is dis-
ACCELE RATOR  POSIT ION played ~ Go to  item 5. 
SENSOR on page  7-13. 
5 
Acce lerator positi on  sensor  Measure  the accelera tor Turn the main  switch  to ON . 
resistance .  position sensor resistance. Fau lt code  numbe

r is not dis-
black/blue-blue  played ~ Service i s  fin is h ed. 
Re f
er to CHECK ING THE Fau lt code  number  is  dis-
ACCELERATOR  POSITION played ~ Go to  item  6. 
SENSOR on page  8-107. 
8-75