Checking The Turn Signal/Hazard Relay; Checking The Relay Unit (Diode) - Yamaha VMAX 2009 Service Manual

Radiator fan motor relay
3
4
2
1
G/Y R/W
Br
R
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity
(between "3" and "4")
EAS2S31059
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
M MMM M MMM M M MMM M
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 →
brown/black "1"
• Negative tester probe →
ground
+
M MMM M M MMM M M MMM M
ELECTRICAL COMPONENTS
b. Turn the main switch to "ON".
c. Measure the turn signal/hazard relay input
voltage.
L LLL L LLL L
2. Check:
• Turn signal/hazard relay output voltage
Out of specification → Replace.
M MMM M MMM M
a. Connect the pocket tester (DC 20 V) to the
turn signal/hazard relay terminal as shown.
• Positive tester probe →
brown/white "1"
• Negative tester probe →
MMM
ground
b. Turn the main switch to "ON".
c. Measure the turn signal/hazard relay output
voltage.
L LLL L LLL L
EAS28050

CHECKING THE RELAY UNIT (DIODE)

1. Check:
• Relay unit (diode)
Out of specification → Replace.
8-138
L LLL L L LLL L L LLL L
Turn signal/hazard relay output
voltage
DC 12 V
M MMM M M MMM M M MMM M
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
L LLL L L LLL L L LLL L
L LLL L LLL
M MMM M MMM
L LLL L LLL