Yamaha FJR1300A(D), Service Manual, Page: 547 / 662

CRUISE CONTROL SYSTEM
8-98
8 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (engine control unit)” on
page 8-174.
Fault code No. 91
Item
A
Cruise control setting switch “RES+”: open or short circuit is de-
tected.
B
Cruise control setting switch “SET–”: open or short circuit
is detected.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 80, 81
Meter display
“ON” (when the switch is pushed)
“OFF” (when the switch is released)
Procedure Push the “SET–” side of the cruise control setting switch.
Item
Probable cause of mal-
function and check
Maintenance job
Confirmation of service
completion
1 Locate the malfunction. Execute the diagnostic
mode. (Code 80)
When the cruise control set-
ting switch “RES+” is
pushed: “ON”
When the cruise control set-
ting switch is released:
“OFF” Malfunction
→
Go to item 2
in section A for the cruise
control setting switch
“RES+”.
Execute the diagnostic
mode. (Code 81)
When the cruise control set-
ting switch “SET–” is pushed:
“ON”
When the cruise control set-
ting switch is released:
“OFF” Malfunction
→
Go to item 2.
2 Connection of left handlebar
switch coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins). Improperly connected
→
Connect the coupler secure-
ly or replace the wire har-
ness.
Turn the main switch to “ON”.
Push and “SET–” side of the
cruise control setting switch.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 3.
Fault code No. 91
Item
A
Cruise control setting switch “RES+”: open or short circuit
is detected.
B
Cruise control setting switch “SET – ”: open or short circuit is de-
tected.