Yamaha RS90GTZ Service Manual page 343

Diagnostic
Item
code No.
Cylinder-#3 ignition coil If the grip warmer side of the grip/thumb warmer
d:32
Injector #1
d:36
Injector #2
d:37
Injector #3
d:38
Fuel injection system
relay
d:50
Radiator fan motor
relay
(For RS90GTZ/
d:51
RS90LTGTZ)
Headlight relay
d:52
ISC (idle speed control)
unit
d:54
Grip warmer operation
d:57
Passenger grip warmer
operation
d:59 (For RST90GTZ)
EEPROM fault code
display
d:60
FUEL INJECTION SYSTEM
Description of action
adjustment switch is pushed, actuates the cylin-
der-#3 ignition coil and displays the self-diagno-
sis warning indicator (five times at one-second
intervals).
If the grip warmer side of the grip/thumb warmer
adjustment switch is pushed, actuates injector
#1 and displays the self-diagnosis warning indi-
cator (five times at one-second intervals).
If the grip warmer side of the grip/thumb warmer
adjustment switch is pushed, actuates injector
#2 and displays the self-diagnosis warning indi-
cator (five times at one-second intervals).
If the grip warmer side of the grip/thumb warmer
adjustment switch is pushed, actuates injector
#3 and displays the self-diagnosis warning indi-
cator (five times at one-second intervals).
If the grip warmer side of the grip/thumb warmer
adjustment switch is pushed, actuates the fuel
injection system relay and displays the self-diag-
nosis warning indicator (five times at one-sec-
ond intervals). (The indicator is off when the
relay is on and it is on when the relay is off.)
If the grip warmer side of the grip/thumb warmer
adjustment switch is pushed, actuates the radia-
tor fan motor relay and displays the self-diagno-
sis warning indicator (for five cycles of five
seconds each). (The relay and indicator are on
for two seconds and off for three seconds.)
If the grip warmer side of the grip/thumb warmer
adjustment switch is pushed, actuates the head-
light relay (on/off) and displays the self-diagno-
sis warning indicator (for five cycles of five
seconds each). (The relay and indicator are on
for two seconds and off for three seconds.)
If the grip warmer side of the grip/thumb warmer
adjustment switch is pushed, actuates the ISC
(idle speed control) valve (fully closes/opens) for
three cycles of four seconds each and displays
the self-diagnosis warning indicator. (The valve
fully closes in two seconds and opens in two
seconds.)
If the grip warmer side of the grip/thumb warmer
adjustment switch is pushed, actuates the grip
warmer and displays the self-diagnosis warning
indicator for 120 seconds.
If the grip warmer side of the grip/thumb warmer
adjustment switch is pushed, actuates the pas-
senger grip warmer, passenger grip warmer
relay, and headlight relay, and displays the self-
diagnosis warning indicator.
• Displays the cylinder number if an error is
detected in the EEPROM CO adjustment
value for the cylinder as fault code No. 44.
• If multiple cylinders are defective, the display
alternates every 2 seconds.
7-16
FI
Checking method
or meter display
After pushing the switch,
check that a spark is produced
five times.
After pushing the switch,
check that the injector oper-
ates five times by listening to
its operating sound.
After pushing the switch,
check that the injector oper-
ates five times by listening to
its operating sound.
After pushing the switch,
check that the injector oper-
ates five times by listening to
its operating sound.
After pushing the switch,
check that the fuel injection
system relay operates five
times by listening to its operat-
ing sound.
After pushing the switch,
check that the radiator fan
motor relay operates five times
by listening to its operating
sound.
After pushing the switch,
check that the headlight relay
operates five times by listening
to its operating sound. (At that
time, the headlight and taillight
come on.)
After pushing the switch,
check that the ISC unit
vibrates. The ISC vibrates
when the ISC valve operates.
After pushing the switch,
check that the warmer
becomes warm.
After pushing the switch,
check that the warmer
becomes warm.
(01 ~ 03) Displays the cylinder
number.
(00) Displays when there is no
malfunction.