Checking The Ocv - Yamaha F225F Service Manual

Wiring harness continuity
(testing diode mode):
Tester probe
m Terminal a Terminal
18 3
a Terminal m Terminal
3 18
m Terminal b Terminal
18 3
b Terminal m Terminal
3 18
m Terminal c Terminal
18 3
c Terminal m Terminal
3 18
OL: Indicates an overload
20. Connect the cam
couplers a, b, and c and engine ECM
couplers n and p.
21. Connect the fuse holder coupler m, and
then install the fuse holder e.
22. Install the intake manifold (STBD). See
"Installing the intake manifold" (6-16).

Checking the OCV

1. Check the operation of the OCV using
the YDIS "Stationary test" and check the
operating sound.
2. Disconnect the OCV couplers a and
b.
3. Turn the engine start switch to ON, and
then measure the input voltage between
the OCV coupler and ground.
Display
value (refer-
ence data)
0.512 V
OL
0.529 V
OL
0.512 V
OL
position sensor
Engine control unit and component
R/Y
a
PORT
OCV input voltage:
Red/Yellow (R/Y)–Ground
12.0 V (battery voltage)
4. Turn the engine start switch to OFF.
5. Remove the OCV.
6. Measure the OCV resistance.
OCV resistance:
6.7–7.7 Ω at 20 °C (68 °F)
7. Remove the OCV.
8. Connect the battery
terminals and check the operation of the
spool valve. Replace the OCV if the
spool valve does not operate.
STBD
R/Y
b
leads to the
5-32
0
1
2
3
4
5
6
7
8
9
10
A