Yamaha Star XVS13AA(C) 2011 Service Manual page 512

EAS3D81010
CHECKING THE TURN SIGNAL RELAY
1. Check:
• Turn signal relay input voltage
Out of specification → The wiring circuit from
the main switch to the turn signal relay cou-
pler is faulty and must be repaired.
Turn signal relay input voltage
DC 12 V
M MMM M MMM M M MMM M M MMM M
a. Connect the pocket tester (DC 20 V) to the
turn signal relay terminal as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
brown "1"
• Negative tester probe →
ground
b. Turn the main switch to "ON".
c. Measure the turn signal relay input voltage.
L LLL L LLL L L LLL L L LLL L
2. Check:
• Turn signal relay output voltage
Out of specification → Replace.
Turn signal relay output voltage
DC 12 V
M MMM M MMM M M MMM M M MMM M
a. Connect the pocket tester (DC 20 V) to the
turn signal relay terminal as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
M MMM M M MMM M MMM
L LLL L L LLL L LLL
M MMM M M MMM M MMM
8-105
ELECTRICAL COMPONENTS
• Positive tester probe →
brown/white "1" or yellow/red "2"
• Negative tester probe →
ground
b. Turn the main switch to "ON".
c. Measure the turn signal relay output voltage.
L LLL L LLL L L LLL L L LLL L
EAS28050
CHECKING THE DIODES
Relay unit (diode)
1. Check:
• Relay unit (diode)
Out of specification → Replace.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
TIP
The pocket tester or the analog pocket tester
readings are shown in the following table.
L LLL L L LLL L LLL