Yamaha YP250R 2005 Service Manual page 336

2. Voltage
• Connect the pocket tester (DC 20 V) to the
meter assembly coupler as shown.
Positive tester probe → brown 1
Negative tester probe → black 2
G/L B Dg
• Set the main switch to "ON".
• Measure the voltage (DC 12 V) of brown
1 and black 2 at the meter assembly
coupler.
• Is the voltage within specification?
YES
Replace the meter
assembly.
Y Sb O/W Br/G Br/G Ch
Gy/R
B
G/R Gy/B Gy Br R/L
2 1
NO
The wiring circuit
from the main switch
to the meter assem-
bly coupler is faulty
and must
repaired.
SIGNALING SYSTEM
be
8 - 42
– +
ELEC