Yamaha AEROX YQ50, Service Manual

Page: 167 / 192

ELEC
8-17
TROUBLESHOOTING
THE AUXILIARY LIGHT, HEADLIGHT, HEADLIGHT INDICATOR, TAIL LIGHT OR METER
LIGHT DO NOT WORK
NOTE :
Remove the following parts before proceeding with the troubleshooting :
• Side covers and footrest board
• Handlebar covers
For accurate troubleshooting use the following special tools :
Pocket tester :
90890-03112
NO CONTINUITY
CONTINUITY
2. “HI/LO” switch
• Disconnect the “HI/LO” switch coupler (left)
from the wire harness.
• Set the switch to “LO”.
• Check for continuity between :
Blue
Q
and Green/Black
W
• Set the switch to “HI”.
• Check for continuity between :
Blue
Q
and Yellow
E
CONTINUITY
1. “LIGHTS” switch
• Disconnect the right handlebar switch cou-
pler from the wire harness.
• Set the switch to “PO” (auxiliary light).
• Check for continuity between
Yellow / Red Q and Blue / Red W
• Set the switch to “ON”.
• Check for continuity between:
Yellow / Red Q and Blue / Red W
Yellow / Red
Q
and Blue
E
NO CONTINUITY
Right handlebar switch defect
➞
Replace.
“HI/LO” switch defect
➞
Replace.
LIGHTING SYSTEM
햲
햳
햴
L GB
HI
LOW
Y
P BrW BrW L
-
Ch Ch Dg Dg
GB GB B Y
OFF OFF
P0 P0
YR
YR
ON ON
B
LR YR LW
YB L
YB
YB LR LR L
햲
햳
햴