Fiat Kobelco EX355 Tier2, Technical Manual

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T5-1-4 EX355
DIAGNOSING PROCEDURE
Start
Initial Pattern
Model Code
Confirmation
Can not
communicate
with MC
OK?
Check Dr. EX
Software
Function
Selecting
Record
Retrial B
Data Selecting
Pattern
Monitor
Data Display
Self-Diagnosing
Results
(Fault Code)
Self-Diagnosing
Results
(Fault Code)
Check MC
power source
(fuse) and/or
communication
harness
OK
Not OK
Self-
Diagnosing
Monitor
Function Special
Function
Dr.EX
Dr.EX ( 75301336 ) is a handy micro computer used for
diagnosing malfunctions of the machine control sys-
tem, including the MC (Main Controller).
When the Dr.EX is connected to the MC, malfunctions
recorded in the MC memory are indicated as fault
codes on the Dr.EX display.
(Self-Diagnosing Function)
Input signals from the sensors or switches that are
connected to the MC, or output signals from the MC to
solenoid valves can be monitored on a real-time basis
while the machine is being operated.
(Real-Time Monitoring Function)
Dr.EX START-UP PROCEDURE
1. Connect the harness of the Dr.EX to the diagnosing
connector of the MC, located near fuse box behind
the operator’s seat.
NOTE - Only this connecting harness can be used to
connect the Dr.EX to the controller. Do not use any
other harness to connect Dr.EX to the controller.
2. Turn the key switch to the ON position or start the
engine.
3. Turn the Dr.EX ON. After a few seconds, following
patterns will appear on the Dr.EX display:
3-1. Initial Pattern
3-2. Model Code Pattern
Example :
Model
: EX300-
5
Ver : XXXX
3-3. Function Selection Pattern
F-1 : “Self-diagnosing Results”
F-2 : “Monitor Data”
F-3 : “Special Functions”
4. Select key F1 (Proceed according to the in-
structions that appear on the display.)
NOTE - For the operation procedure of the Dr.EX, refer
to the Dr.EX OPERATOR’S MANUAL.