Water Temperature Display (For Fx Cruiser High Output) - Yamaha WaveRunner Service Manual

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ELEC
S
N
N
S
INDICATION SYSTEM
R/Y
Y
B/Y
Water temperature display
(for FX Cruiser High Output)
1. Check:
• Water temperature display
Incorrect reading → Measure the speed
sensor (water
resistance.
Checking steps:
• Measure the ambient water temperature.
• Turn on the multifunction meter and
check the water temperature displayed
on the meter.
• If the water temperature displayed on the
multifunction meter is more than ± 5 °C
(9 °F) different from the ambient water
temperature, measure the speed sensor
(water temperature sensor) resistance.
2. Measure:
• Speed sensor (water temperature sen-
sor) resistance.
Out of specification → Replace the
speed sensor.
Within specification → Replace the com-
pass sensor.
Digital multimeter:
YU-34899-A
Digital circuit tester:
90890-03174
Speed sensor (water temperature
sensor) resistance:
10 kΩ at 25 °C (77 °F)
Measuring steps:
• Disconnect the coupler, and then mea-
sure the resistance between the yellow
and black/yellow leads as shown in the
illustration.
• If the speed sensor (water temperature
sensor) resistance is within specification,
replace the compass sensor. If out of
specification, replace the speed sensor.
NOTE:
Be sure to check the water temperature dis-
play again after replacing the compass sen-
sor. If the water temperature display is still
incorrect, replace the multifunction meter.
66
E
temperature sensor)