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29
Group 23 EDC III
Diagnostic function
WARNING!
Read the safety instructions for maintenance and service work in the chapter ”Safety informa-
tion” before starting to work.
NOTE:
The readout of the error codes below, such as
175 Code 2.1
, means that
175
is read using the diagnostic tool.
2.1
is the blink code that is shown on the instrument box’s diagnostic lamp. See ”Reading out error codes”.
Error codes EDC III
18 Code 2.4
Cause:
RPM sensor, flywheel. Abnormal frequency.
Response:
The engine is extremely hard to start and
runs unevenly if it does.
Corrective action:
•
Check that the tachometer sensor connector is fit-
ted correctly.
•
Check that the wiring to the tachometer sensor is
not damaged.
•
Check that the tachometer sensor is correctly fit-
ted in the flywheel housing.
•
Check the function of the tachometer sensor.
101 Code 2.4
Cause:
Tachometer sensor, flywheel. Intermittent signal.
Response:
The engine is extremely hard to start and
runs unevenly if it does.
Corrective action:
•
Check that the tachometer sensor connector is fit-
ted correctly.
•
Check that the wiring to the tachometer sensor is
not damaged.
•
Check that the tachometer sensor is correctly fit-
ted in the flywheel housing.
•
Check the function of the tachometer sensor.
•
Check the contact pressure in sleeves 30 and 31
in the black cable glove of the engine control unit
(ECU).
175 Code 2.1
Cause:
Water in the fuel or low fuel pressure.
Response:
Alarm lamp lights.
Corrective action:
•
Check the fuel dehumidification filter (drain the
fuel tank).
•
Check if it is possible to increase the pressure
using the hand pump.
•
Check the fuel filter.
•
Check the fuel pre-filter
191 Code 2.2
Cause:
Low coolant level.
Response:
Engine is switched off (if this protective
feature has not been disabled by the parameter set-
ting tool).
Alarm lamp lights.
Corrective action:
•
Check the coolant level.
•
Check the function of the coolant level monitor.
15 Code 2.4
Cause:
Tachometer sensor, flywheel. No signal.
Response:
The engine is extremely hard to start and
runs unevenly if it does.
Corrective action:
•
Check that the sensor connector is fitted correctly.
•
Check that the wiring to the tachometer sensor is
not damaged.
•
Check that the tachometer sensor is correctly fit-
ted in the flywheel housing.
•
Check the function of the tachometer sensor.
•
Check the contact pressure in sleeves 30 and 31
in the black cable glove of the engine control unit
(ECU).