Yamaha XT660R 2004 Service Manual page 428

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
3. Voltage
• Connect the pocket tester (DC 20 V) to the
meter assembly coupler (wire harness
end) as shown.
Positive tester probe → green/white 1
Negative tester probe → black/white 2
Ch R/G Y
Dg G/L R/W
G G/L R/W
Ch R/G Y
• Set the main switch to "ON".
• Measure the voltage (DC 12 V) of green/
white 1 and black/white 2 at the meter
assembly coupler.
• Is the voltage within specification?
YES
This circuit is OK.
email: info@motomatrix.co.uk
G/W Y/L
B/W Lg
2
B/W Lg
G/W Y/L
1
NO
The wiring circuit
from the main switch
to the meter assem-
bly coupler is faulty
and must be
repaired.
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SIGNALING SYSTEM
6. The speedometer fails to come on.
1. Voltage
• Connect the pocket tester (DC 20 V) to the
meter assembly coupler (wire harness
end) as shown.
Positive tester probe → yellow/blue 1
Negative tester probe → black/white 2
Ch R/G Y
Dg G/L R/W
G G/L R/W
Ch R/G Y
• Set the main switch to "ON".
• Elevate the rear wheel and slowly rotate it.
• Measure the voltage (DC 5 V) of yellow/
blue 1 at the meter assembly coupler
(wire harness end).
• Is the voltage within specification?
YES
– +
ELEC
G/W Y/L
B/W Lg
2
B/W Lg
G/W Y/L
1
NO
Replace the meter
assembly.