Yamaha Fz 09 2014 Manual

							2. Check the  entire signaling systems 
wiring. 
Re fer  to 
CIRCUIT  DIAGRAM  on 
page 
8 -21. 
Rep lace  the ECU or meter assembly. 
Re fer  to  REPLAC ING THE ECU (en­
gine control  unit) on  page 8-93. 
The  speedomete r fail s to  opera te. 
1. Check  the speed  sensor . 
Re fer  to 
CHEC KING THE  SPEED 
SENSOR on page 8-105. 
2. Check the  entire signaling systems 
wi ring . 
Re fer  to 
CIRCUIT DIAGRAM  on 
page 
8 -21. 
Rep lace  the ECU or meter assembly. 
Refer  to  REPLAC ING THE ECU (en­
gine control  unit) on  page 8-93. 
NG-t 
NG-t 
NG-t 
The coolant temp erature  warn ing li ght  fail s to  come  on. 
1. Check  the coola nt tempe rature sen­
sor. 
Refer  to 
CHECK ING TH E COO L­
ANT T EMPERATURE  SENSOR 
on page 8-106. 
2. Check the  entire signali ng systems 
wiring.  Refe r to 
CIRCUIT  DIAG RAM  on 
page 8-21. 
Rep lace  the ECU or meter assembly. 
Re fer to  REPLACING THE ECU  (en­
g ine co ntrol  unit) on  page 8-93. 
NG-t 
NG-t 
8-26 
SIGNALING  SYSTEM 
Properly con nect or  repai r the sig na li ng 
sys tems wiring . 
Rep lace the speed  sensor . 
Proper ly con nect or  repai r the signa li ng 
sys tems wiring . 
Replace the coola nt tempe ra tu re  sensor. 
Prope rly co nnect or repair  the sig na li ng 
system s  w iring.  
						

							EA$27300 
COOLING SYSTEM 
EA$27310 
CIRCUIT DIAGRAM 
Ill I 
! 
li:I I 
€ I I I 
e I 
• 
9• I 
! 
Ii} · I I 
:-.i· ..  .  . 
   
,_~ 0 
Gl. fu ... ··1 ( J ... ·.  ·.: e:,.. .  .  . 
·- -··~;g: ®· ~ ...... '©~ k;• ,-----:;,,;.;:,. ·:5· -,,-. e ® 
t:vi:W~  
®J• 1'--~l!'l,.,,_:,.R_lll_ .~LB.:~ • 
: · . -~.,..·:-~e:i~~=~----~ 
   . . . 
·-----· 
COOLING  SYSTEM 
-
C>·· . . ..  •  .T ® . I     
. . -----------· 
®·. 
8-27  
						

							3.  Ma in  swi tch 
4 .  Ma in  fuse 
7 .  Radiator 
fan  f use 
9 . 
Ignit ion fuse 
13 .Ba
ttery 
14.Eng ine  ground 
18.Jo in t co nnecto r 
23.ECU (engine contro l un it) 
35. 
Coo lant temperature  sensor 
85.  Rad iator  fan motor 
relay 
86.  Rad iator  fan motor 
COOLING  SYSTEM 
8-28  
						

							COOLING SYSTEM 
TROUBLESHOOTING 
TIP~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
• Before troubleshooting,  remove the following part(s): 
1.  Ri
der seat 
2. Ai r scoop 
3. Fuel tan k cover 
4. Fuel tank 
5. Air filter case 
6. Throttle bodies 
1. Check  the fuses. 
(Main,  ignition  and  rad iator  fan) 
Refer  to 
 CHECKING THE FUSES 
on page 8-93 . 
OK.I. 
2. Check  the battery. 
Refer  to 
CHECKI NG AND 
CHARGING THE BATTERY on 
p age  8-94. 
OK.I. 
3. Check  the main swit ch . 
Refer  to 
CHECKING T H E 
SWI TCHES on  pag e 8-89. 
OKJ. 
4 . C heck the  radiato r fan motor. 
Refe r to 
CHECKING THE R ADIA­
T
OR FAN MOTORS on page 
8-106. 
OKJ. 
5 . C heck the  radiato r fan motor relay. 
Refe r to CHECKING THE R E­
LAYS  on page 8-97. 
OK.!. 
6 . Check  the coolant temperature  sen­
sor.  Refe r to 
CHECKING THE COOL­
ANT TEMPERATURE SENSOR 
on page 8-106. 
OKJ. 
7 . C heck the entire cooling systems 
wmng. 
Re fe r to 
CIRCUIT D IAGRAM  on 
page 8-27. 
OKJ. 
Replace the ECU. 
Re ie r to  REPLACING THE ECU (en­
gine control unit) on page 8 -93. 
NG-t 
NG-t 
NG-t 
NG-t 
NG-t 
NG-t 
NG-t 
8-29 
Replace the fuse(s). 
•  C lean the battery term inals . 
• 
Recharge  or rep lace th e battery. 
Replace th e main switch. 
Re place the rad iator fan motor(s). 
Replace the radiator  fan motor relay. 
Replace the coolan t temperature sensor. 
Properly con nect or rep air the cooli ng sys­
t
ems w iring.  
						

							COOLING SYSTEM 
8-30  
						

							EA$27S31 
FUEL INJECTION  SYSTEM 
EA$27S.C0 
CIRCUIT DIAGRAM 
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• 
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f:• I 
 
 ail I  . 
l~i~: 1 it I•,( 
I~ ·,:• ,I·\. eo1·2:: le I 
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·--- - - -.- ---- - ·- ·· ·- , -. . --
~ 
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: Jf      . • . 
I· • 
.i 
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							3.  Ma in  switch 
4 .  Ma in  fuse 
5 . 
E lec tr ic  thrott le va lve fuse 
9 . 
Ign it ion fuse 
11. Head light fuse 
13.Battery 
14.Eng ine  ground 
15. 
Fuel inj ect ion  sys tem fuse 
1 6.Starter 
re lay 
18.Joint connec to r 
1 9.Jo i
nt coup ler 
20.Re lay 
un it 
21. Sta rting  circuit  cut- off relay 
22.F uel 
pump re lay 
23 .ECU 
(eng ine contro l unit) 
24 .lgn it ion coil # 1 
25 .lgn it ion coil # 2 
26 .lgn it ion coil # 3 
27 .S park 
plug 
28 . In jector #  1 
29.lnjector #2 
30.ln jector #3 
31.Ai r  induction  system solenoi d 
32.02 sensor 
33 . C rankshaft  posit i
on s e nsor 
34 .lnta ke a ir  temperatu re senso r 
35 . 
Coo lan t tempera tu re  sensor 
36 . 
Intake a ir  pressure  sensor 1 
37.lntake air  pressure  sensor 2 
38 . L ean 
a n gle sensor 
39 .S peed  senso r 
40.Throttle servo  motor 
41.Acce le r
ator pos ition  senso r 
42.Thrott le pos it ion sensor 
43.  Yamaha  diagnost ic 
too l connector 
44.  Yamaha  diagnost ic 
too l coup ler 
45. Meter  assemb ly 
49.Mu lt i· f unct ion meter 
52.Eng i
ne troub le warn ing light 
58. Gea r pos ition sensor 
60.F uel pump 
61.S idestand swi tch 
62 .R ight 
han dleba r 

switch 
63 . Driv e 
mode switch 
64 . Start/e ngi
ne stop  switch 
70 .C lu tch swit ch 
84 .Head light  relay 
85 . Radiator fan  motor re lay 
FUEL  INJECTION  SYSTEM 
8-32  
						

							FUEL INJECTION  SYSTEM 
EA$27$1 
ECU SELF-DIAGNOSTIC  FUNCTION 
The ECU is  equ ipped  with a self -diagnostic  functio n in order  to ensure  that the fu el injection  system  is 
operat
ing normally.  If this functio n detects  a malfunct ion in  the  system,  it immed iate ly operates  the en­
g
ine  un der  subst itute  characteristics  and illum inates the eng ine tro uble warning light t o a le rt the ride r 
that  a 
malfunc tion ha s occ urre d in  the  system. Once a malfunct io n has  been  detected, a faul t code 
n umber  is 
s tored 
in the  memory of th e E CU. 
•To infonm the ride r that  the fuel injec tion  system is not  fu nctioni ng,  the  engine trouble warni ng ligh t 
flashes  wh
ile the (i) side of the  start/eng ine  stop switch  is being  pushed  to  start  the  engine. 
•  If a malfunc tio n is  detected  in  the  system  by the self-diagnosti c function,  the ECU provides  an appro­
p ria te s ubs ti
tut e  character istic ope ration, and alerts the rider  of the de tec ted malfu ncti on by illumi nat­
ing  the  engine troub le warning lig ht. 
• After  the  engine  has been stopped , the lowest  fault  code  numbe r appears  on  the me ter  disp lay. Once 
a  faul t code  has been  displayed , it 

r ema ins  stor ed  in  the  memory 
of the ECU un til  it  is  deleted. 
Engine trouble warning light indication and fuel injection system operation 
Warning light ECU operation Fue l injection Vehicle operation indication operation 
Warning  provided 
Flashing • when  unable  to  start Operat ion stopped Canno t be ope rated 
engine 
Operated  with  subst i-
tu te  character i
stics in Ca n or cannot be oper -
Remains  on  Malfunction  detected  accordance with  the  ated depending on  the 
description  of 
the mal-
fault code 
fu
ncti o n 
•The warning  li ght flashes  when any on e  of the fo llow ing cond it ions  is  present  and the&> side of t h e  starVen ­
g ine  stop  switch 
is pushed: 
12 : Crankshaft  position sen sor 
19: Sidestand  swit ch 
(open  circ uit  in  the  wi
re to  the ECU) 
Lea n angle  sensor 
( latch  up  detected) 30: 
Checking the engine trouble warning light 
41: 
50: 
Lea n angl e sensor 
(ope n or short  circu it) 
ECU in ter na l malf unction 
( fau lty 
ECU memory) 
The  engine  tr oub le  warning 
light comes  on for a round  2 seco nds after  the main switc h  has  been  set to 
ON and  it comes  on whi le  the 
						

							FUEL INJECTION  SYSTEM 
ECU detects an abnormal  signal from  a sensor 
If th e ECU detects  an abnorma l signa l from a sensor while the veh ic le is being  driven,  the ECU ill u mi­
nates  the eng ine troub le warn ing li gh t and  provides the engine  with alterna te operating  instructions  that 
are  appropriate  f
or the type  of malf unction. 
When  an abnorma l s ignal is  received  from a se nsor , the ECU processes  the specified values tha t are 
p rogrammed  for eac h se nsor 
in order to  pro vide  the engine  with  alternate  operating ins tructions tha t 
enabl e the engine  to con tinue  opera ti ng or stop  opera ti ng, depending  on the  conditions. 
8-34  
						

							EA$30580 
TROUBLESH O OTING  METHOD 
The engine  op eration Is not normal and the 
eng in e t ro uble warning light com es on. 
1.  Check: 
• Fau lt code  numbe r 
TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT 
a. Check  the fault  code  number displayed on 
the  meter. 
b.  Identi fy  the 
fau lty system  with  the  fault  code 
n umbe r. 
c .  Ide ntify  the 
probab le cause  of  the malfunc ­
tio n. 
••••••••••••••••••\
•••••••••••••• 
2.  Chec k and  repair  the probab le cause of the 
ma l

function. 
Fault code No. No faul t code No. 
C h
eck and  repai r.  Check  and repair. 
Refer to  T ROUBLE -
SHOOT I
NG 
DETAILS  on page 
8 -38. 
Mon itor  the  opera -
l i
on of  the  senso rs 
and  actuators  in the 
diagnost ic  mode. 
Refe r  to T ROUBL E-
SHOOT I
NG 
DETAILS  on page 
8 -
38 and 
SELF -DIAGNOS -
TIC FUNCTION AND 
DIAGNOS TIC CODE 
TABLE on page  9-5. 
3.  Perfo rm  the  re instatement  action  fo r  th e 
fue l 
inject ion  system. 
Refer 
to Con firmation of serv ice comp letion 
in  the  appropr iate  table 

in 
T ROUBLE ­
SHOOT l 
NG DETAILS on page 8-3 8. 
4. 
Set the  main swit ch  to OFF, then to  ON  
aga in, and  then  check  that  no fault code  num­
ber  is 
d isp layed. 
TIP~~~~~~~~~~~~~~~ 
I f anothe r fault code numbe r  is d isp layed , repeat 
steps  (1 )  to  (4) 
until no fau lt code  number  is  dis ­
p layed . 
5. Erase  the malfunction  history  in the  diagnos ­
t ic  mode  (code No.62) . Refe r to 
SELF -D IAG ­
NOSTIC  FUNCTION 
AND DIAGNOSTIC 
CO DE  TAB LE  
on  page  9-5. 
FUEL  INJECTION  SYSTEM 
TIP~~~~~~~~~~~~~~­
Setting  the main  switch  to OFP  will not  erase 
th e 
malfunct ion h istory. 
The engine operation is not normal, but the 
engine trouble warning light doe s not come 
on_ 
1. Check  the ope ra tion of the follow ing senso rs 
a nd  actuators  in  the  diagnost ic  mode.  Refer 
to 
TR OUB LESHOOT ING  DETA ILS on 
page  8-38. 
1 

: 
T hrott le pos ition  sensor signal 1 
(thrott le  angle) 
13: Thrott le pos ition  sensor sig na l 2 
(thrott le  angle) 
14: Accelerator posi tion sensor signal 1 
(thrott le  angle) 
15: Accele rator posi tion sensor signal 2 
(thrott le  angle) 
8-35 
30: Cy linde r-#1 ig niti o n coil 
31: Cylin der -# 2 ign it ion coil 
32: Cylinder-#3 ignit ion coil 
36: I njecto r #1 
37: Injector #2 
38: Injector #3 
48:  Air  in d u
ction sys tem solen oid 
I f 
a ma l

functi on 
is  detected  in  the sensors or 
actuator s,  repa ir  or rep lace  all fa ulty parts . 
If no ma l

functio n 
is  detected  in  the  sensors 
and  actuators , chec k and  repair  t he  inne r 
parts 
of the  engine .