Checking The Relays - Yamaha 2009 XP500Y TMAX Service Manual

• Battery cover
Refer to "GENERAL CHASSIS" on page 4-1.
EAS28040

CHECKING THE RELAYS

Check each switch for continuity with the pocket
tester. If the continuity reading is incorrect, re-
place the relay.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
1. Disconnect the relay from the wire harness.
2. Connect the pocket tester (Ω × 1) and battery
(12 V) to the relay terminal as shown.
Check the relay operation.
Out of specification → Replace.
Starting circuit cut-off relay
3
4
2
1
Lg
L/Y
G/ Y
G/ W
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity
(between "3" and "4")
Starter relay
3
R
B
4
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
+
R R
B L/W
1 2
8-69
ELECTRICAL COMPONENTS
4. Negative tester probe
Result
Continuity
(between "3" and "4")
Headlight relay
3
4
2
1
W/ Y R/Y
L/
B
R/Y
1. Positive battery terminal
2. Negative battery terminal
3. Positive tester probe
4. Negative tester probe
Result
Continuity
(between "3" and "4")
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")
+