Lighting System Check - Yamaha YW50AP Service Manual

YP.....
6. Wiring connection
8 Check the connections of the entire light-
ing system.
Refer to "WIRING DIAGRAM".
Check the condition of each of the lighting
system's circuits.
Refer to "LIGHTING SYSTEM CHECK"
YP805020

LIGHTING SYSTEM CHECK

1. If the headlight and the high beam indi-
cator light fail to come on.
1. Bulb and bulb socket
Refer to "CHECKING SWITCHES" section.
2. Voltage
8 Connect the pocket tester (DC20V) to the
headlight and high beam indicator light
couplers.
A When the dimmer switch is on low beam.
B When dimmer switch is on high beam.
Headlight(low beam):
Tester (+) lead→Green 1 lead
Tester (–) lead→Black 2 lead
Headlight(high beam):
Tester (+) lead→Yellow 3 lead
Tester (–) lead→Black 4 lead
High beam indicator light:
Tester (+) lead→Yellow 5 lead
Tester (–) lead→Black 6 lead
*
OK
CONTINUITY
*
LIGHTING SYSTEM
POOR CONNECTIONS
Correct.
NO CONTINUITY
Replace the bulb and/or bulb socket.
6
5
7-29
ELEC
Y
G/Y
B
– +
1
2
Y
B
G
3
B
4