TOHATSU TLDI 40 Service Manual page 162

Self-diagnosing Mode 4:
Even when in Mode 3 can be enabled by releasing the stop
switch lock and pressing the key for approximately
3 seconds until 3 short beeps are emitted.
This deletes the fault log.
Note: This will not delete records of engine operating hours.
Returning to normal operation:
If there is any remaining fault information, the user will be
notified by a combination of warning indicators and beeps.
Refer to Warning Indicator Definition Table.
Note: The self-diagnosing function can be terminated during any of the steps listed above
by simply turning the key switch to the OFF position.
[Fault Log Delete]
Turn the key switch to the OFF position
to terminate the self-diagnosing function.
Reengage the stop switch lock.
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