Cannondale 5002401 Service Manual page 33

Sending a calibration file or "map" to
the ECU -
"Changing a map"
NOTE :
"Sending" a calibration file transfers the engine
calibration file and vehicle variables currently
open in the Cannondale
Maintenance Tool main window to the vehicle
ECU.
Sending will over-write the ECU current engine
calibration file and vehicle variables.
Vehicle variables (throttle min/max, throttle body
leakage (a.k.a Throttle body leakage), fuel injector
flow rate, and injector offset) are over-written only
if the values have been entered through the
Update Calibrations button. If no values are
entered, the vehicle variables stored in the ECU
are used.
If the interface cable is disconnected accidentally
or problems with the PC interrupt the transfer
process, the engine calibration file send process
should be start over from the beginning. Although,
it is possible to quickly reconnect the interface
cable during the transfer process, information can
be lost or damaged.
Do not experiment with calibration files!
Sending unidentified, altered, or third party
calibration files can result in severe damage to
the vehicle or affect the safe operation of the
vehicle. You could be severely injured or killed
in a resulting accident.
Always consult the
(www.cannondale.com)
authorized for a specific vehicle identification
number (VIN).
1. To send a calibration file to the vehicle ECU, start
by connecting the interface cable to the computer
and vehicle.
2. Open the Cannondale Diagnostic and Mainte-
nance Tool software on your PC. The CDMT pro-
gram will automatically open the last engine
calibration file that was open using the program.
Electrical_EFI Service Manual.fm
© 2002 Cannondale Corporation - All Rights Reserved
Diagnostic and
Cannondale website
for calibration files
You'll want to pay close attention to what engine
calibration file is actually open before you send
the file to the ECU in the following steps.
Click the OPEN Calibration File (saved) button
to open the Open Calibration File window to
browse for a saved engine calibration file on your
PC. Select the filename and click OPEN.
-- or --
Select File-> Open.
You should now have an engine calibration file
"open" in the CDMT main window. Confirm that
the correct engine calibration file name is dis-
played in the top left corner of the CDMT window
and at the Numeric Cal ID field.
3. Next, make sure the vehicle engine management
system is powered-up. When the vehicle is pow-
ered-up, the LED on the interface cable block
should be lit.
4. Click the SEND Calibration File (to ECU) button.
If the calibration file open in the main window dif-
fers from the one currently stored in the ECU, the
"Cal version different. Do you wish to proceed?"
prompt will display. Click yes to send the file. Click
cancel to exit.
If you click YES, the file that is open in the main
window will be sent to the vehicle ECU. It will
over-write the current calibration file stored in the
ECU. During this process, the vehicle variables
currently stored in the ECU will be retained if the
values have not been entered first using the
Update Calibrations button. If values had been
entered, they will over-write the ECU values dur-
ing the send process. When the send has been
completed the vehicle ECU will automatically
power itself down. The LED on the interface cable
block will turn off indicating the ECU power is now
off. The calibration file just sent will remain "open"
in the CDMT window until the program is exited or
another calibration file is opened or received.
Setting the throttle position sensor
minimum and maximum values
The minimum and maximum values are captured
and recorded into the ECU using the SET Throttle
Position button.
34