Checking The Turn Signal Relay - Yamaha 2009 XP500Y TMAX Service Manual

Fuel injection system relay
3
4
2
1
R/B
L/ Y
L/ R
L/ R
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity
(between "3" and "4")
Grip warmer relay (OPTION)
3
4
2
1
Y/B Br
L
Br
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity
(between "3" and "4")
EAS4B51020

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
+
+
8-70
ELECTRICAL COMPONENTS
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 →
blue "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
• Positive tester probe →
brown/white "1"
• Negative tester probe →
ground
M MMM M M MMM M MMM
L LLL L L LLL L LLL
M MMM M M MMM M MMM