4 cylinders + 6 cylinders 4 cylinders + 6 cylinders - Steyr Motors

ToC SERVICE MANUAL MARINE ENGINES
Indication status
Fault
ELECTRICAL SYSTEM
Remarks
ON
(2x per sec.)
80° - 90°C
high exhaust
temperature
(off 80° C)
check raw water
system,
strainer, impeller pump
OFF
07.05 ill.4
OFF FLASHING
(2x per sec.)
ON high approx 105°C
(2x per sec.)
engine coolant
temperature to high
after cooling down,
check engine coolant
level
OFF OFF OFF
07.05 ill.5
ON
120°C
(2x per sec.)
defect engine coolant
sensor or
sensor connection
after cooling down,
check engine coolant
level, sensor (B16)
and connection
OFF OFF OFF
07.05 ill.6
OFF
80° - 90°C
instable idle speed,
no indication on
tachometer
defect speed sensor (B15)
or
sensor connection
OFF OFF OFF
07.05 ill.7
ON
80° - 90°C
OFF OFF ON
07.05 ill.8
Trouble in governing loop,
involved components:
control solenoid, rack,
control gear of
unit injector,
rack position sensor
Failure in governing loop:
time limit exceed for rack
positioning. Restriction
or high friction in control
devices.Stored failure code
must be cleared memory.
Tools: PC-service program
Z001019/0_6_July 2008 Page ELECTRICAL SYSTEM - 55