Yamaha TMAX XP530-A 2017, Service Manual, Page: 619 / 676

ELECTRICAL COMPONENTS
8-228
EAS30550
CHECKING THE BULBS AND BULB
SOCKETS
TIP
Do not check any of the lights that use LEDs.
Check each bulb and bulb socket for damage or
wear, proper connections, and also for continuity
between the terminals.
Damage/wear

Repair or replace the bulb,
bulb socket or both.
Improperly connected

Properly connect.
No continuity

Repair or replace the bulb, bulb
socket or both.
Types of bulbs
The bulbs used on this vehicle are shown in the
illustration.
• Bulbs “a” are used for turn signal lights and can
be removed from the socket by pushing and
turning the bulb counterclockwise.
•
Bulbs “b” are used for license plate and storage
box lights and can be removed from their re-
spective socket by carefully pulling them out.
Checking the condition of the bulbs
The following procedure applies to all of the
bulbs.
1. Remove:
•
Bulb
WARNING
EWA17540
Since headlight bulbs get extremely hot,
keep flammable products and your hands
away from them until they have cooled
down.
NOTICE
ECA14381
• Be sure to hold the socket firmly when re-
moving the bulb. Never pull the lead, other-
wise it may be pulled out of the terminal in
the coupler.
• Avoid touching the glass part of a headlight
bulb to keep it free from oil, otherwise the
transparency of the glass, the life of the
bulb, and the luminous flux will be adverse-
ly affected. If the headlight bulb gets soiled,
thoroughly clean it with a cloth moistened
with alcohol or lacquer thinner.
2. Check:
• Bulb (for continuity)
(with the digital circuit tester)
No continuity

Replace.
TIP
Before checking for continuity, set the digital cir-
cuit tester to “0” and to the “

” range.
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a. Connect the positive tester probe to terminal
“1” and the negative tester probe to terminal
“2”, and check the continuity.
b. If reading indicate no continuity, replace the
bulb.
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Checking the condition of the bulb sockets
The following procedure applies to all of the bulb
sockets.
1. Check:
•
Bulb socket (for continuity)
(with the digital circuit tester)
No continuity

Replace.
TIP
Check each bulb socket for continuity in the
same manner as described in the bulb section,
however, note the following.
b a
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927