TOHATSU MD 40B2 Owner's Manual page 41

ENOM00041-C
Warning indicators, faults and remedy
Warning indicators
Sound
A B
lamp lamp
Continu-
ON ON
ous
Continu-
- -
ous
Intermit-
tent (3
Flash-
-
beeps for
ing
every 2
minutes)
Continu- Flash-
-
ous ing
Continu- Flash-
-
ous ing
- -
-
Flash-
-
-
ing
Flash- Flash-
-
ing ing
Flash- Flash-
-
ing ing
Flash- Flash-
-
ing ing
High speed ESG (Electronic Safety Governor)
High speed ESG is a device to prevent over revolution of the engine. If the load to the engine becomes light for
some reason, it runs at a higher speed than the usual. In such the case, the buzzer sounds and the ESG is
activated not to ignite the spark plug, therefore, the engine speed varies and be controlled under 6000min
(rpm).
Low speed ESG
Low speed ESG is a device to prevent the engine from getting damage. If the engine has problems regarding
cooling water, oil pressure, and sensors, the low speed ESG is activated not to ignite the spark plug, and
disable fueling therefore, the engine speed varies and be controlled under 3000min
Description of faults
ESG
C
lamp
Normal system test
ON -
High Engine speed exceeds
- speed
ESG allowable RPM
Low
- speed
ESG
Low
Cooling water temp. is
- speed
ESG
Forced Cooling water temp is
-
idling abnormally high
Flash-
- Battery voltage is low
ing
Low
- speed Battery voltage is low
ESG
Low
Flash-
speed Malfunction of sensor
ing
ESG
Forced
Flash-
Malfunction of sensor
idling
ing
Flash- Malfunction of electrical
-
ing
part or sensor
PRE-OPERATING PREPARATIONS
or notice
when key on
maximum
Low oil level
high
Engine is stopped
Approx. 10V or less
-1
Rem-
Remark edy
1 second
Approx.
1
6,000 r/min
2
3
3
4
under 9V
4
5
5
5
-1
(rpm).
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