Yamaha MTN850-A 2017 Service Manual page 519

Radiator fan motor relay
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity
(between "3" and "4")
EAS30794
CHECKING THE TURN SIGNAL/HAZARD
RELAY
1. Check:
• Turn signal/hazard relay input voltage
Out of specification  The wiring circuit from
the main switch to the turn signal/hazard re-
lay coupler is faulty and must be repaired.
Turn signal/hazard relay input
voltage
DC 12 V
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the digital circuit tester (DC V) to the
turn signal/hazard relay terminal as shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
• Positive tester probe
blue/red "1"
• Negative tester probe
Ground
ELECTRICAL COMPONENTS
b. Turn the main switch to "ON".
c. Measure the turn signal/hazard relay input
voltage.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
2. Check:
• Turn signal/hazard relay output voltage
Out of specification  Replace.
Turn signal/hazard relay output
voltage
DC 12 V
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the digital circuit tester (DC V) to the
turn signal/hazard relay terminal as shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
• Positive tester probe
brown/white "1"
• Negative tester probe
Ground
b. Turn the main switch to "ON".
c. Measure the turn signal/hazard relay output
voltage.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
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