Yamaha YFM350R-W Supplementary Service Manual page 67

EAS00799
2. The turn signal light, turn signal indicator
light or both fail to blink.
1. Turn signal light bulb and socket
• Check the turn signal light bulb and socket
for continuity.
• Are the turn signal light bulb and socket
OK?
YES
2. Turn signal switch
• Check the turn signal switch for continuity.
Refer to "CHECKING THE SWITCH".
(Manual No.: 3GD-AE6)
• Is the turn signal switch OK?
YES
3. Hazard switch
• Check the hazard switch for continuity.
Refer to "CHECKING THE SWITCH".
(Manual No.: 3GD-AE6)
• Is the hazard switch OK?
YES
NO
Replace the turn sig-
nal light bulb, socket
or both.
NO
Replace the handle-
bar switch.
NO
Replace the handle-
bar switch.
SIGNALING SYSTEM
4. Voltage
• Connect the pocket tester (DC 20 V) to the
turn signal relay coupler (wire harness
side) as shown.
Positive tester probe → brown/blue 1
Negative tester probe → ground
• Set the main switch to "ON".
• Measure the voltage (DC 12 V) on brown/
blue 1 at the turn signal relay coupler
(wire harness side).
• Is the voltage within specification?
– 60 –
ELEC
Br/W
Br/L
1
YES
The wiring
from the main switch
to the turn signal re-
lay coupler is faulty
and must
paired.
– +
NO
circuit
be re-