Yamaha F200B, Service Manual

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4-18
4
Troubleshooting the power unit
using the diagnostic flash indicator
1. Remove the flywheel magnet cover.
2. Connect the special service tool 1 .
a
Diagnostic test lead (Blue/White)
TIP:
When performing this diagnosis, all of the
electrical wires must be connected properly.
3. Start the engine and let it idle.
4. Check the flash patterns of the trouble
codes.
Example:
The illustrations indicate code numbers 23
and 113.
b
: Light on, 0.33 second
c
: Light off, 4.95 seconds
d
: Light off, 0.33 second
e
: Light off, 1.65 seconds
5. If trouble code is detected, see “Trouble
code and checking step” (4-9).
TIP:
When more than 1 trouble code is detected,
the light of the special service tool flashes in
the pattern of the lowest trouble code. After
that trouble code is corrected, the indicator
flashes in the pattern of the next lowest trou-
ble code. This continues until all of the trou-
ble codes are detected and corrected.
Diagnostic flash indicator B 1 :
90890-06865
1
a
b b e
d
2 3
b b b c
c b b b e b e b
d
1 1
3
Outboard motor troubleshooting