Operating Instructions For The "Diagnosis Software Kit" On The Fuel Injection - Husqvarna TC 450 Workshop Manual

Operating instructions for the "DIAGNOSIS SOFTWARE KIT" on the fuel
injection system
Premised that the fuel injection system doesn't need any programmed main-
tenance, the Diagnosis Software Kit code no. 8000 A9634 allows to effect the
check of the components of the fuel injection system in case of malfunction.
In case of malfunction on the right side of the instrument display will be displayed
the warning message "FAIL", with the ignition key in ON position and the right
commutator in RUN position.
The "DIAGNOSIS SOFTWARE KIT" (A) consists of:
- CD containing "Diagnostic Tool" Software, User's Guide (PDF file), Operation
Manual (PDF file);
- User's Guide handbook for the Software Use;
- Operation Manual handbook;
- Connecting cable PC-ECU interface connector.
After DIAGNOSIS SOFTWARE loading, according with the User's Guide
instructions, proceed as follows:
- remove the front headlamp holder as shown on page M.30;
- remove the plug (B) from the ECU connector interface (C);
- connect the cable (D) of the kit to the connector (C) and to the serial port (E)
on PC;
- turn the ignition key (F) in ON position then place the R.H. commutator in RUN
position;
- start the "Diagnostic Tool" Software previously installed, then carry out the
controls.
If the throttle body (H) will be removed and/or replaced, it is necessary
to adjust the T.P.S. again selecting the options "T.P.S. Idle Adjustment
Command" (page 32 on Operation Manual) and "Feedback Adjust-
ment Command" (page 29 on Operation Manual). See fig. 9-3-4 on
page S.4 for the "Feedback Adjustment Value".
The components of the fuel injection system that can be checked
with this diagnosis software are the followings:
1- AIR TEMPERATURE (Air temperature in the intake manifold);
2- COOLANT TEMPERATURE (Engine coolant temperature);
3- ATMOSPHERIC PRESSURE (Atmospheric pressure in the intake manifold
in the current position and altitude);
4- THROTTLE POSITION
5- TILT SENSOR (SMR:senses rollover of the vehicle)
6- O2 SENSOR (Senses rich or lean combustion mixture )
7- BATTERY SENSOR (Battery voltage)
8- SENSORS SOURCE (It supplies energy to the sensors)
9- GEARSHIFT POSITION (Current gear position)
10- INJECTOR (Pulse width of fuel injector)
11- IGNITION COIL (It accumulates energy and discharges said energy to spark
plug)
12- O2 HEATER (It warms the O2 sensor to a temperature suitable for the sensor
to give stable output)
Part. N. 8000 H1344 (10-2009)
FUEL INJECTION SYSTEM
S.3
C
B