Self-Diagnosis - Yamaha FZS1000N Service Manual

SELF-DIAGNOSIS

The FZS1000 features a self-diagnosing system for the following circuit(-s):
Throttle position sensor
EXUP
Speed sensor
Emargency stop switch
If any of these circuits are defective, their respective condition codes will be displayed on the tachome-
ter when the main switch is set to "ON" (irrespective of whether the engine is running or not)
Circuit
Throttle posi- Disconnected
tion sensor Short-circuit
Locked
EXUP Improper
connection
Short-circuit
Servomotor is
locked.
Speed sensor Improper
connection
Emargency Disconnected
stop switch Short-circuit
Fail angle
Defect(-s)
The ignitor unit stays set to the
wide-open throttle ignition timing.
The motorcycle can be ridden.
The tachometer displays the
condition code.
The EXUP valve stays in the open
position for three seconds and
then the servomotor shuts off. The
motorcycle can be ridden.
The tachometer displays the
condition code.
The servomotor's power supply is
constantly inteerupted so that it
will not burn out. The motorcycle
can be ridden.
The tachometer displays the
condition code.
The tachometer displays the
condition code.
The tachometer displays the
condition code.
Ignition system cutoff.
SELF-DIAGNOSIS
System response
8-55
ELEC
Condition code
3,000 r/min
7,000 r/min
4,000 r/min
9,000 r/min