37
Superior
Technology
m
arine
Indicator lamp for glow plug system
monitoring and engine electronics
The self-diagnosis concept of Volkswagen
Marine boat engines comprises a self-monitoring
function for sensors, actuators and
mircoprocessors by the engine control unit.
Functional description
The self-diagnosis system uses an indicator lamp
to inform the skipper of any malfunctions. In this
way he is requested to call at the nearest service
centre.
A warning is given in the event of a malfunction
in the following components:
• Needle lift sender
• Engine speed sender
• Modulating piston movement sender
• Metering adjuster
• Start of injection valve
• Turbocharger: Boost pressure outside
set range (TDI only)
Substitute function
None
Effect
The effect depends on the type of component
that has failed.
Activation
The engine control indicator lamp is activated by
the engine control unit.
Engine electronic systems
MSSP_001_032
MSSP_001_067
SUPERIOR MARINE TECHNOLOGY
Start
Stop
0
10
20
30
40
m
arine
3.7
o
l/h
3.7
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l/h
3.7
o
l/h
0
10
20
30
40
3.7
o
m
When the indicator lamp is activated
by the engine control unit, an
acoustic warning signal additionally
sounds. This signal can be turned off
after pressing the acknowledging
button.
Summary of Contents for SDI 55-5
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