39
Electronic Engine Control Unit (ECU)
The
STEYR MOTORS GmbH Marine engine
is equipped with an Electronic Engine Control Unit (ECU) that per-
forms the following:
* controls engine functions to ensure maximum efficiency.
* self-diagnostic to protect the engine from damage if operating parameter are exceeded.
* stores diagnostic data of ECU server circuits for maintenance and service.
* stores abuse data
Engine power is reduced if:
Operating
Parameter
Effect
noticed
Panel
Indication
Additional
Tool-Readings
Action or
possible reason
High engine coolant
temperature limit
exceeded
Reduction of
engine speed
Horn ON 2x p. sec.
Gauge reading
> 107 °C
Steyr Diag
Power limitation
See table trouble
shooting:
Cooling system
Defect - engine
coolant sensor or
sensor connection
Reduction of engine
speed
Horn ON 2x p. sec.
Steyr Diag
Service code
Sensor or connector
failure; see service
code table
Exhaust temperature
limit exceeded
Reduction of engine
speed
Horn and indication
light “CEL” ON
2x p. sec.
Steyr Diag
Power limitation
See table trouble
shooting:
Raw water cooling
system
Defect - Exhaust
temperature sensor
or sensor connection
Reduction of engine
speed
Horn and indication
light “CEL” ON
2x p. sec
Steyr Diag
Service code
Sensor or connector
failure; see service
code table
Oil pressure below
limit
Reduction of engine
speed
Horn continuous and
Oil indication light
continuous switched
ON
Steyr Diag
Power limitation
See table trouble
shooting:
Engine oil system
Defect - Oil pressure
sensor or sensor
connection
Reduction of engine
speed
Oil pressure
indication light
switched ON
1x p. sec.
Steyr Diag
Service code
Sensor or connector
failure; see service
code table
Insufficient boost
pressure or defective
sensor
Reduction of engine
speed
Steyr Diag
Power limitation
See table trouble
shooting:
Air charge system
Engine speed sensor
fault
Irregular engine
speed or stalled
engine
No RPM indication
on tachometer
Steyr Diag
Service code
See table trouble
shooting:
Speed sensor
Engine speed
remains at idle
No increase of
engine speed if
throttle is moved to
max.
Steyr Diag
Service code
See table trouble
shooting:
Accelerator
potentiometer failure
Governor position
system
Irregular engine
speed or stalled
engine
Steyr Diag
Service code
See table trouble
shooting:
Governing system
Содержание MO114K33
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Страница 6: ...6 SAFETY PRECAUTIONS Safety Precautions 7 Introduction 7 ...
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Страница 91: ...91 Wiring diagram MO 12 V 4 cyl from engine s n 482330250 ...
Страница 92: ...92 Wiring diagram MO 24 V 4 cyl from engine s n 482330250 ...
Страница 93: ...93 Wiring diagram MO 12 V 2 pol 4 cyl from engine s n 482330250 ...
Страница 94: ...94 Wiring diagram MO 24 V 2 pol 4 cyl from engine s n 482330250 ...
Страница 95: ...95 Wiring diagram MO E Box external 4 cyl from engine s n 482330250 ...
Страница 96: ...96 Wiring diagram MO E Box external 2 pol 4 cyl from engine s n 482330250 ...
Страница 101: ...101 Wiring diagram SE E Box 12V 6 cyl ...
Страница 102: ...102 SE Series Wiring diagram SE E Box 24V 6 cyl ...
Страница 103: ...103 SE Series Wiring diagram external SE E Box 6 cyl ...
Страница 104: ...104 Wiring diagram SE E Box 12 V 4 cyl ...
Страница 105: ...105 Wiring diagram external SE E Box 12 V 4 cyl ...
Страница 106: ...106 Wiring diagram Instument CAN Panel 12 24V ...
Страница 107: ...107 Wiring diagram Instument CAN Panel Solas 12 24V ...
Страница 119: ...119 Date Destination Number Abord Engine Started Engine Stopped Service Record Inspection Tune up Lubrication ...
Страница 120: ...120 Date Destination Number Abord Engine Started Engine Stopped Service Record Inspection Tune up Lubrication ...
Страница 121: ...121 Date Destination Number Abord Engine Started Engine Stopped Service Record Inspection Tune up Lubrication ...
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