Checking The Turn Signal/Hazard Relay - Yamaha YZF-R1 2007 Service Manual

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Headlight relay (on/off)
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity/No continuity
Headlight relay (dimmer)
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity/No continuity
Radiator fan motor relay
1. Positive battery terminal
email: info@motomatrix.co.uk
ELECTRICAL COMPONENTS
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity/No continuity
EAS4C81019
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/haz-
ard relay coupler is faulty and must be
repaired.
Turn signal/hazard relay input
voltage
DC 12 V
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the pocket tester (DC 20 V) to the
turn signal/hazard relay terminal as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
Blue/Red "1"
• Negative tester probe →
Ground
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
8-93