Diagnostics - Yamaha SZR 660 Service Manual

LIGHT
SYSTEM
DIAGNOSTICS
DIPPED/HIGH
BEAM
LIGHT,
HIGH
BEAM WARNING
LIGHT,
REAR STOPATAIL
LIGHT,
NUMBER
PLATE
LIGHT,
FRONT PARKING
LIGHT
AND/OR INSTRUMENT
LIGHTS FAIL
TO TURN ON
Procedure
Check:
1.
Bulb
2.
Fuse 20A
(main)
3.
Battery
4.
Main
switch
5.
Lights switch
and
dipped/high
beam
light
6.
Harness
connections
(full
system
of
connections)
NOTE:
Before beginning
inspections,
remove
the following parts;
1.
Seat
2.
Rear
cowling
3.
Cowling
To
check
for
defects use
the following special tools.
Pocket
tester:
P/N.
YU-03112
P/N.
90890-03112
1,
Bulb and
bulbholder.
Check
the
continuity of
the bulb and
bul-
bholder.
See
the
"BULB INSPECTION"
section.
DISCONTINUITY
o CONTINUITY
The bulb and/or bufbholder are
defective.
Replace.
2.
Fuse 20A
(main).
Remove
the fuse.
Connect
the
pocket
tester (£2x1) to
the fuse
Check
fuse
continuity.
See
the
"FUSE INSPECTION
AND
REPLACEMENT"
section
in
CHAPTER
3.
DISCONTINUITY
Replace
the fuse,
o
CONTINUITY
LIGHT
SYSTEM
Q
3.
Battery.
Check
the conditions
of
the
battery.
See
the
"BATTERY INSPECTION"
section
in
CHAPTER
3.
Voltage:
12.8V or
over
at
20°C
(68°F)
Jl
CORRECT
4,
Main switch.
Disconnect
the
main
switch
connector from
the harness.
Connect
the pocket tester (Qx1)
to
the
main
switch terminals.
See
the
"SWITCH CHECK"
section.
o
CORRECT
5. Light
switch
and
dipped/high
beam
commutator.
Disconnect
the
left
handlebar
switch unit
connector.
Connect
the pocket tester (Qxl)
to
the
connector terminals.
Check
the switch
component
for
continuity
between "Brown
(1
)
and Blue
{2)\
"Brown
(1
and Green
(3)",
"Brown
(1)
and
Yellow
(4)".
See
the
"SWITCH CHECK"
section.
INCORRECT
Clean the battery terminals.
Recharge
or
replace the
battery.
See
the
"BATTERY
INSPECTION"
section
in
CHAPTER
3.
INCORRECT
The main
switch
is
defective. Replace.
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