Z001019/0_6_July 2008
Page ELECTRICAL SYSTEM - 37
06 ELECTRICAL SYSTEM
SERVICE MANUAL MARINE ENGINES
Operating Parameter
Engine speed sensor
fault
Engine speed remains
at idle
Governor position
system
Inverse position shut
down (SOLAS)
During break in phase
Additional
Tool-Readings
Steyr Diag
Service code
Steyr Diag
Service code
Steyr Diag
Service code
Steyr Diag
Break-in
phase
Panel
Indication
No RPM inication
on tachometer
After engine stop
horn remains
switched ON until
ignition reset
Indication light
"CEL" is switched
ON
Effect
noticed
Higher or
unstable idle
speed, limited
performance
No increase of
engine speed if
throttle is moved
to max.
Irregular engine
speed or stalled
engine
Engine shut
down beyond
70° deg. angle
Cel-ON at high
accelerator
position (more
than 75%)
06.06.02 Diagnostic system
The electronic engine management system controls the following parameters:
Oil pressure, boost pressure, coolant temperature, hi-riser (bend) temperature.
The electronic engine management system has an automatic self-test program checking all data
of electronic sensors. As soon as a fault is found, there is an optical or audible signal (refer to chart
"Error Codes").
Occurred faults remain stored until cancellation. Stored faults may be selected, analyzed and
cancelled by means of PC via diagnostic outlet.
A reference to one or several stored faults is the 5 second "TESTING" of the "CHECK-ENGINE
LAMP" and the "WARNING HORN" after ignition ON, instead of usual 0,7 seconds. (refer to chart
"Operating Status")
On the CHECK-ENGINE lamp (E) stored faults may be indicated by flashing codes. (With a
special procedure, (06.06.04) individual cancellation is possible.) Error codes are regarded both as
flashing codes as will as display by diagnostic instrument.
There are three fault categories: temporary faults, non essential faults and essential faults.
Optical and audible warning signals as shown on the dash board, are illustrated in chapter "Operating Status
and Error Report"
Action or
possible reason
See table trouble
shooting:
Speed sensor
See table trouble
shooting:
Accelerator
potentiometer failure
See table trouble
shooting:
Governing system
Reset through ignition
OFF and then ON
See information break
in procedure
ToC
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