Yamaha F30A 2018, Руководство по обслуживанию

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5-17
Engine control unit and component
Using the digital tester
The electrical technical data applies to the
measurements taken using the Yamaha rec-
ommended tester.
The resistance values shown are the values
taken before the engine is started. The actual
resistance may vary depending on the environ-
mental conditions and ambient temperature.
The input voltage changes depending on the
battery voltage.
If the tester probe cannot be inserted into the
coupler, prepare a test lead suitable for the
measurement.
Engine control unit and compo-
nent
Checking the main relay
1. Check:
• Main relay
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Disconnect the main relay coupler “a”.
b. Measure the input voltage between the ter-
minal and ground.
c. Turn the engine start switch to ON, and
then measure the input voltage between
the terminal and ground.
d. Turn the engine start switch to OFF.
e. Connect the special service tool “2” to the
main relay “1”.
Digital circuit tester
90890-03243
Digital multimeter
YU-34899-A
Peak voltage adapter B
90890-03172
Peak volt adapter
YU-39991
Digital circuit tester
90890-03243
Digital multimeter
YU-34899-A
Test lead
Terminal, male “1”
(commercially available)
Terminal, female “2”
(commercially available)
1 2
Input voltage
12 V (battery voltage)
Red (R)–Ground
Red (R)–Ground
Input voltage
12 V (battery voltage)
Terminal 1–Ground
R
a
1
a