Yamaha R15 2022 Service Manual page 480

b. Set the main switch to "ON".
c. Measure the turn signal relay input volt-
age.
2. Check:
• Turn signal relay output voltage
Out of specification → Replace.
Turn signal relay output voltage
DC 12 V
a. Connect the multimeter (DC 20 V) to the
turn signal relay terminal as shown.
Multimeter
INS-003
(90890-03189)
• Positive tester probe →
brown/white "1"
• Negative tester probe →
ground
b. Set the main switch to "ON".
c. Measure the turn signal relay output volt-
age.
EAS30555
CHECKING THE DIODES
1. Check:
• Diode
Out of specification → Replace.
Multimeter
INS-003
(90890-03189)
TIP
The multimeter or the analog multimeter
readings are shown in the following table.
ELECTRICAL COMPONENTS
Br/W
1
Br
For diode 1:
Continuity
Positive tester probe → sky/
blue "1"
Negative tester probe → red/
black "2"
No continuity
Positive tester probe → red/
black "2"
Negative tester probe → sky
blue "1"
For diode 2:
Continuity
Positive tester probe → sky/
blue "1"
Negative tester probe → blue/
green "2"
No continuity
Positive tester probe → blue/
green "2"
Negative tester probe → sky
blue "1"
1
2
a. Disconnect the diode from the wire har-
ness.
b. Connect the multimeter (Ω × 1) to the di-
ode terminals as shown.
c. Check the diode for continuity.
d. Check the diode for no continuity.
EAS30557
CHECKING THE SPARK PLUG CAP
1. Check:
• Spark plug cap resistance
Out of specification → Replace.
Resistance
4.00–6.00 kΩ
a. Remove the spark plug cap from the spark
plug lead.
b. Connect the multimeter (Ω × 1k) to the
spark plug cap as shown.
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