FUEL INJECTION SYSTEM
Fault code
No
.
89
(Yamaha diagnostic tool)
Err (multi-function meter display)
Item
Multi-function meter: signals cannot be transmitted between
the ECU and the multi-function meter.
Fail-safe system Able to start engine
Able to drive vehicle
Diagnostic code No.
-
Meter display
-
Procedure
-
Item Probable cause of Maintenance job Confirmation of service
malfunction and check completion
1 Connection
of
meter assem- Improperly connected
-+
Turn the main switch to "ON".
b
ly
coupler. Connect the coupler secure
ly
Fault code number is
no
t dis-
Check the locking condition or replace the wire harness. played
-+
Serv
ice is finished.
of
the coupler. Fault code number is dis-
Disconnect the coupler and played
-+
Go
to item
2.
check the pi
ns
(bent
or
bro-
ken terminals and locking
condition
of
the pins).
2 Connection
of
wire harness Improperly connected
-+
Turn the main switch to "ON".
ECU coupler. Connect the coupler secure
ly
Fault code number is
no
t dis-
Check the locking condition
or
replace the wire harness. played
-+
Serv
ice is finished.
of
the coupler. Fault code number is dis-
Disconn
ec
t the coupler and played
-+
Go
to item
3.
check the pi
ns
(bent
or
bro-
k
en
terminals and locking
condition
of
the pins).
3
Wire harness continuity. Open
or
short circuit
-+
Turn the main switch to "ON".
Replace the wire harness.
Fault code number is
no
t dis-
Between ECU coupler and played
-+
Serv
ice is finished.
joint coupler. Fault code number is dis-
li
ght
green/blu
e-light
played
-+
Go
to item
4.
g
re
e
n/
blue
light green/white-light
green/whi
te
Between joint coupler and
meter assembly coupler.
li
ght
green/blu
e-light
g
re
e
n/
blue
light green/white-light
green/whi
te
4 Defective meter assembly. Replace the meter assembly. Turn the main switch to "ON".
Fault code number is
no
t dis-
played
-+
Serv
ice is finished.
Fault code number is dis-
played
-+
Go
to item 5.
8-78
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