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66
E
–
+
ELEC
INDICATION SYSTEM
Water temperature display
(for FX Cruiser High Output)
1. Check:
• Water temperature display
Incorrect reading
→
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.
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.
Digital multimeter:
YU-34899-A
Digital circuit tester:
90890-03174
Speed sensor (water temperature
sensor) resistance:
10 k
Ω
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.
N
S
S
N
R
/
Y
Y
B
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Y