Yamaha MTN1000 2016 Service Manual page 548

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
B-1 Locate the malfunction.
B-2 Connection of rear brake light
switch coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
B-3 Connection of brake light relay
coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
B-4 Connection of main switch cou-
pler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
P056C
A Front brake light switch: open or short circuit is detected.
B Rear brake light switch: open or short circuit is detected.
Able to start engine
Able to drive vehicle
82, 83
"ON" (when the brakes are applied)
"OFF" (when the brakes are not applied)
Operate the brake pedal.
Maintenance job
Execute the diagnostic mode.
(Code 82, 83)
When the front brake is applied:
"ON"
When the front brake is not
applied: "OFF"
When the rear brake is applied:
"ON"
When the rear brake is not
applied: "OFF"
Improperly connected  Con-
nect the coupler securely or
replace the wire harness.
Improperly connected  Con-
nect the coupler securely or
replace the wire harness.
Improperly connected  Con-
nect the coupler securely or
replace the wire harness.
8-131
CRUISE CONTROL SYSTEM
Confirmation of service com-
Malfunction  Go to item A-2
for the front brake light switch.
Malfunction  Go to item B-2.
Turn the main switch to "ON".
Operate the brake pedal, and
then check the condition of the
fault code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered"  Go
to item B-10 and finish the ser-
vice.
Condition is "Detected"  Go to
item B-3.
Turn the main switch to "ON".
Operate the brake pedal, and
then check the condition of the
fault code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered"  Go
to item B-10 and finish the ser-
vice.
Condition is "Detected"  Go to
item B-4.
Turn the main switch to "ON".
Operate the brake pedal, and
then check the condition of the
fault code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered"  Go
to item B-10 and finish the ser-
vice.
Condition is "Detected"  Go to
item B-5.
pletion