Self-Diagnosis - Yamaha XV1600A1999 Service Manual

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EB812000

SELF-DIAGNOSIS

The XV1600A features a self-diagnosing system for the following circuit(-s):
S throttle position sensor
S speed sensor
S decompression solenoid
S fuel level meter
If any of these circuits are defective, their respective condition codes will be displayed on the engine
trouble indicator light or fuel level indicator light when the main switch is set to "ON" (irrespective of
whether the engine is running or not).
Blinks
in or
in or
lights
Circuit
up the
indica-
tor light
Throttle posi-
tion sensor
Speed sensor
Decompres-
sion solenoid
Fuel level
meter
NOTE:
The XV1600A features a self-diagnosing system.
In the XV1600A, when the main switch is turned on the "Engine trouble indicator light" and "Fuel level
indicator light" in the meter assembly comes on for 1.4 seconds then goes off. However, if there is a
malfunction, it comes on for 1.4 seconds, goes off and then begins flashing. (However, it is on while the
engine is running.)
Defect(-s)
S Disconnected
S The ignitor unit stays set to the
S Short-circuit
wide-open throttle ignition
S Locked
timing. The motorcycle can be
ridden.
S The engine trouble indicator
light displays the condition
code.
S Abnormal pulse
S The engine speed limiter sets
S Disconnected
in approximately 4,400 rpm.
S Short-circuit
S The engine trouble indicator
light displays the condition
code.
S Disconnected
S The decompression solenoid
S Short-circuit
does not move.
S Over heated
S The starter motor does not
solenoid
operate.
S Disconnected
S The engine trouble indicator
the thermistor
light displays the condition
in solenoid
code.
S Short-circuit
the thermistor
in solenoid
S Disconnected
S The fuel level meter displays
S Short-circuit
the empty position.
S The fuel level indicator light
displays the condition code.
SELF-DIAGNOSIS
System response
7-54
ELEC
Condition code
When
When
engine is
engine is
stopped
running
Blinks in
Lights up
Patterns
of 3
Blinks in
Lights up
patterns
of 4
Blinks in
Lights up
patterns
of 6
Blinks in
Blinks in
patterns
patterns
of 8
of 8
E

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Xv1600al 1999

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