Checking The Lighting System - Yamaha FZS1000 2003 Supplementary Service Manual

EAS00788

CHECKING THE LIGHTING SYSTEM

1. The headlight and the high beam indicator
light fail to come on.
1. Headlight bulb and socket
S Check the headlight bulb and socket for
continuity.
S Are the headlight bulb and socket OK?
YES
2. Voltage
S Connect the pocket tester (DC 20 V) to the
headlight and high beam indicator light cou-
plers as shown.
A
When the dimmer switch is set to "
When the dimmer switch is seto to "
B
Headlight
Positive tester probe !
black/yellow
Negative tester probe ! black
High beam indicator light
Positive tester probe !
Negative tester probe ! black
Headlight coupler (wire harness side)
Meter light coupler (wire harness side)
NO
Replace the headlight
bulb, socket or both.
".
or black/green
1 2
3
black/yellow 4
5
LIGHTING SYSTEM
S Set the main switch to "ON".
S Start the engine.
S Set the dimmer switch to "
S Measure the voltage (12 V) (wire harness
side).
S Is the voltage within specification?
This circuit is OK.
3. Wiring
S Check the entire lighting system's wiring.
Refer to "CIRCUIT DIAGRAM".
S Is the lighting system's wiring properly con-
nected and without defects?
". Properly connect or
repair the lighting
system's wiring.
EAS00789
2. The meter light fails to come on.
1. Meter light bulb and socket
S Check the meter light bulb and socket for
continuity.
S Are the meter light bulb and socket OK?
2. Voltage
S Connect the pocket tester (DC 20 V) to the
meter light coupler (wire harness side) as
shown.
–24–
ELEC
" or "
YES
NO
Replace the ignitor
unit.
YES
Replace the meter
light bulb, socket of
both.
".
NO
YES
NO