Yamaha YW125Y_ Utility Trailer User Manual


 
7-32
-+
ELEC
The wiring circuit from
the main switch to the
headlight coupler or
meter assembly cou-
pler is faulty and must
be repaired.
Refer to “CIRCUIT
DIAGRAM”.
This circuit is OK.
YES NO
LIGHTING SYSTEM
3. Voltage
8 Connect the pocket tester (DC 20 V) to the
headlight and high beam indicator light cou-
plers as shown.
AWhen the dimmer switch is set to “%
BWhen the dimmer switch is set to “&
Headlight
Positive tester probe
JJ
JJ
J yellow
11
11
1
Negative tester probe
JJ
JJ
J black
22
22
2
Positive tester probe
JJ
JJ
J green
33
33
3
Negative tester probe
JJ
JJ
J black
44
44
4
Headlight coupler
High beam indicator light
Positive tester probe
JJ
JJ
J yellow
55
55
5
Negative tester probe
JJ
JJ
J black
66
66
6
Meter assembly coupler
8 Set the main switch to “ON”.
8 Set the engine stop switch to “#”.
8 Start the engine.
8 Set the dimmer switch to “%” or “&”.
8 Measure the voltage (DC 12 V) of y
ellow 1
or green 3 on the headlight coupler (wire
harness side) and yellow 5 on the meter
assembly coupler (wire harness side).
8 Is the voltage within specification?
B
Lg
DC20V
-
L
Br
G
6
5
Dg
YCh
DC20V
G
B
1
3
Y
B
2
4
A
B
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