Yamaha XV1700PCR Road Star Warrior, Service Manual

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ELEC
SIGNALING SYSTEM
YES
NO
EAS00800
7. The engine trouble warning light fails to
come on.
YES
NO
YES
NO
3. Voltage
• Connect the pocket tester (DC V 20) to the
speedometer assembly coupler (wire har-
ness side) as shown.
Positive tester probe
→
brown
1
Negative tester probe
→
black
2
• Set the main switch to “ON”.
• Measure the voltage (DC 12 V) of brown
1
and black
2
at the speedometer
assembly coupler (wire harness side).
• Is the voltage within specification?
Replace the speed-
ometer assembly. The wiring circuit
from the main switch
to the speedometer
assembly coupler is
faulty and must be
repaired.
1. Engine trouble warning light LED
• Check the LED of the engine trouble warn-
ing light.
Refer to “CHECKING THE BULBS AND
BULB SOCKETS”.
• Are the engine trouble warning light LED
OK?
Replace the speed-
ometer assembly.
B
Lg
Dg Ch
Y
Br B
Lg
Dg Ch
Y
Br
2
1
2. Voltage
• Connect the pocket tester (DC 20 V) to the
speedometer assembly coupler (wire har-
ness side) as shown.
Positive tester probe
→
brown
1
Negative tester probe
→
gray
2
• Set the main switch to “ON”.
• Measure the voltage (DC 12 V) of brown
1
and gray
2
at the speedometer assem-
bly coupler (wire harness side).
• Is the voltage within specification?
This circuit is OK. The wiring circuit
from the main switch
to the speedometer
assembly coupler is
faulty and must be
repaired.
G / R G / R Gy Gy
B / L
L / R
L / R B / L
B
Lg
Dg Ch
Y
Br B
Lg
Dg Ch
Y
Br
2
1