Yamaha XF50W Service Manual page 321

5. Voltage
• Connect the pocket tester (DC 20 V) to the
turn signal relay coupler (wire harness side)
as shown.
Positive tester probe-*
Negative tester probe
• Set the main switch to "ON".
• Measure the voltage (DC 12 V) on brown/
white ® at the turn signal relay coupler (wire
harness side).
• Is the voltage within specification?
YES
V
brown/white ©
-> ground
I
NO
The turn signal relay is
faulty and must be re-
placed.
SIGNALING SYSTEM
6. Voltage
• Connect the pocket tester (DC 20 V) to the
turn signal light connector or meter assem-
bly coupler (wire harness side) as shown.
ALeft turn signal light(front and rear)
BRight turn signal light(front and rear)
CTurn signal indicator light
Left turn signal light
Positive tester probe
Negative tester probe
Right turn signal light
Positive tester probe
Negative tester probe
A B
JJ B Ch [L
-*- —,
E -
\ B | Ch \
C
Ch
3
Dg
Y
• Set the main switch to "ON".
• Set the turn signal switch to "<^=i" or "i=£>".
• Measure the voltage (DC 12 V) of the choco-
late ® or dark green
light connector (wire harness side).
• Is the voltage within specification?
YES
V
This circuit is OK.
8-39
- chocolate 1
ground
- dark green 2
ground
JJ B | Dg [L
u
\ B | Dg
©
-JS)
Ch
n
Dg
w v w
Y
(D
(2) at the turn signal
NO
*
The wiring circuit from
the turn signal switch to
the turn signal light con-
nector is faulty and must
be repaired.