Yamaha F90D - Checking the Power Trim and Tilt Switch; Checking the Trim Sensor

6D81G11
7-46
1
2
3
4
5
6
7
8
9
3. Connect the light green (Lg) lead to the
positive battery terminal and the black
(B) lead to the negative battery terminal
as shown.
4. Check for continuity between terminals
2
and
3
. Replace if there is no continu-
ity.
5. Connect the digital circuit tester between
power trim and tilt relay terminals
1
and
3
.
6. Connect the sky blue (Sb) lead to the
positive battery terminal and the black
(B) lead to the negative battery terminal
as shown.
7. Check for continuity between terminals
1
and
3
. Replace if there is no continu-
ity.
Checking the power trim and tilt
switch
1. Check the power trim and tilt switch for
continuity. Replace if out of specification.
Checking the trim sensor
1. Measure the trim sensor resistance.
Replace if out of specification.
NOTE:
Turn the lever
1
and measure the resistance
as it gradually changes.
Lead color
Switch
position
Sky blue
(Sb)
Red (R)
Light green
(Lg)
Up
Free
Down
Trim sensor resistance:
Pink (P) – Black (B)
238.8–378.8
Ω
at 20 °C (68 °F)
a
9–11
Ω
at 20 °C (68 °F)
b
Tilt cylinder and trim cylinder / Power trim and tilt electrical system