Yamaha YZF-R1S Service Manual page 432

5. Voltage
S Connect the pocket tester (DC 20 V) to the
turn signal light connector or meter assem-
bly coupler (wire harness side) as shown.
Left turn signal light
A
Right turn signal light
B
Turn signal indicator light
C
Left turn signal/position light
Positive tester probe ! chocolate
Negative tester probe ! ground
Right turn signal/position light
Positive tester probe ! dark green
Negative tester probe ! ground
A B
C
S Turn the main switch to "ON".
S Set the turn signal switch to "
S Measure the voltage (DC 12 V) of the choco-
late or dark green
1 2
connector (wire harness side).
S Is the voltage within specification?
YES
This circuit is OK.
1
2
" or " ".
at the turn signal light
NO
The wiring circuit
from the turn signal
switch to the turn sig-
nal light connector is
faulty and must be
repaired.
8-39
SIGNALING SYSTEM
EAS00801
4. The neutral indicator light fails to come on.
1. Neutral indicator light (LEDs)
S Check the neutral indicator light for continu-
ity.
Refer to "CHECKING THE LEDs".
S Are the neutral indicator light OK?
YES
2. Neutral switch
S Check the neutral switch for continuity.
Refer to "CHECKING THE SWITCHES".
S Is the neutral switch OK?
YES
EAS00753
3. Starting circuit cut-off relay (diode)
S Disconnect the starting circuit cut-off relay
coupler from the wire harness.
S Connect the pocket tester (Ω
starting circuit cut-off relay coupler as
shown.
S Check the starting circuit cut-off relay for
continuity.
Positive tester probe !
blue/yellow
Negative tester probe !
Positive tester probe !
Negative tester probe !
blue/yellow
ELEC
NO
Replace the meter
assembly.
NO
Replace the neutral
switch.
1) to the
1
Continuity
2
sky blue
sky blue
2
No
continuity
1