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5-28

5. Turn the engine start switch to ON, and

then measure the input voltage between

the terminals e and g.

6. Turn the engine start switch to OFF.

7. Install the main relay, and then install the

relay cover and fuse cover.

8. Install the intake manifold (STBD). See

“Installing the intake manifold” (6-18).

Checking the engine ECM circuit

1. Remove the engine ECM cover.

2. Remove the engine ECM, and then dis-

connect the engine ECM couplers a, b,

and c.

3. Check the wiring harness for continuity.

4. Measure the input voltage at the engine

ECM coupler a.

5. Remove the intake manifold (STBD).

See “Removing the intake manifold” (6-

17).

6. Remove the fuse holder 1, and then dis-

connect the fuse holder couplers d and

Main relay input voltage:

Terminal e–Terminal g

12.0 V (battery voltage)

Wiring harness continuity:

b Terminal 46–Ground

c Terminal 68–Ground

c Terminal 69–Ground

c Terminal 76–Ground

Engine ECM input voltage:

a Terminal 7–Ground

12.0 V (battery voltage)

69 68

Checking the electrical component / Engine control system and component

Yamaha F200B Service Manual

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