Yamaha F30B 2018, Руководство по обслуживанию

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5-19
Engine control unit and component
2. Check:
• Engine ECM ground circuit continuity
Out of specification

Replace the wire
harness.
3. Measure:
• Engine ECM input voltage
Out of specification

Check the wire har-
ness for continuity.
4. Measure:
• Engine ECM input voltage
Out of specification

Check the wire har-
ness for continuity.
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a. Turn the engine start switch to ON, and
then measure the input voltage at the en-
gine ECM coupler terminal and ground.
b. Turn the engine start switch to OFF.
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5. Connect:
• Engine ECM couplers
Checking the TP S
1. Measure:
• TPS output voltage
Out of specification

Check the TPS in-
put voltage.
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a. Connect the YDIS to display “TPS volt-
age”.
b. Start the engine and warm it up for 5–10
minutes, and then stop it.
Engine ECM ground circuit continu-
ity
Terminal 39–Ground
Terminal 48–Ground
Terminal 17–Ground
Engine ECM input voltage
12 V
Terminal 45–Ground
39
4 8
17
b
a
45
a
Engine ECM input voltage
12 V
Terminal 36–Ground
Output voltage at throttle valve ful-
ly closed
0.67 V
Throttle valve opening angle at
throttle valve fully closed (refer-
ence data)
0.1

36
a