Rotax 912 i Series Maintenance Manual page 331

ECU SOFTWARE FLASHING
INTRODUCTION
This section describes the process of flashing a
912 iSeries ECU Software.
Generally the ECU Software flashing process
can be done in two different ways:
- Situation 1: Flashing ECU Software on a
removed ECU. That means the ECU has
been disconnected at least from the wiring
harness.
- Situation 2: Flashing ECU Software on an
installed ECU. The ECU is connected to the
wiring harness and is installed in an Aircraft.
Because the situations are essentially different,
those two situations will be described indepen-
dently in this chapter.
The description of the Software flashi-
NOTE:
ing process itself is valid for all ECU
Software versions as long as there is
no additional information given by
ROTAX in form of Service Bulletins.
Before loading new ECU Software
make sure that you have installed the
latest version B.U.D.S. Aircraft ac-
cording to SI-912 i-002 on your com-
puter. See also SI-912 i-003.
Effectivity: 912 i Series
Edition 1/Rev. 1
BRP-Powertrain
MAINTENANCE MANUAL
SITUATION 1: UPDATING SOFTWARE OF
A REMOVED ECU (ON BENCH)
WARNUNG
Removal must be carried out according to the
aircraft manufacturer's instructions.
WARNUNG
Do not open and close the ECU connectors
more than 20 times, otherwise it is required to
change the ECU and the wiring harness.
If it is possible it is recommended to perform the
Software flashing process as described in situa-
tion 2 to save connection cycles.
For a flawless software flashing procedure en-
sure that the selected power supply is able to
provide constant power.
WARNUNG WARNING
When detaching the ECU from the Aircraft make
sure that
- ECU is powered down
- "Backup Battery"-, "Start Power"-, "Master"-,
"LANE A and "LANE B" Switches must be
set to "OFF"
- Aircraft Battery is disconnected (negative
terminal) and
- External power supplies must be discon-
nected from the Aircraft.
NOTICE
NOTICE
76-10-00
Page 19
October 01/2013