Rotax 912 i Series Maintenance Manual page 317

SYSTEM DESCRIPTION
GENERAL NOTE
The control unit is the central module in the
engine management system.
Sensors continuously measure pressure, rota-
tion speed, temperature, load and knock signals
and send these measurement values to the
ECU.
The digital ECU uses these measurement val-
ues to determine not only the mixture but also
the optimum injection point for the fuel and igni-
tion points specifically for each cylinder.
The general safety instructions must
NOTE:
be followed during all work on the
ECU!
TECHNICAL DATA
NOTICE
WARNUNG
The coupler must be only installed into respecti-
ve sockets of the ECU (pay attention to the mar-
king). If excessive force is used or the position is
wrong, the pins can be bent and the ECU must
be replaced.
Effectivity: 912 i Series
Edition 1/Rev. 1
BRP-Powertrain
MAINTENANCE MANUAL
Fig. 2
1. Connector socket A1
3. Connector socket B
SAFETY INFORMATION
WARNUNG WARNING
Danger of damage to engine!
There is a risk of short circuits and cable fires
during work on the engine management system.
All installation work on the engine management
system should be carried out with the engine
switched off and the battery (negative terminal)
disconnected.
"Backup Battery" - "Master" and "LANE A" and
"LANE B" switches must be "OFF"!
WARNUNG
Danger of damage to the fuel distribution sys-
tem and ignition unit!
2. Connector socket A2
NOTICE
76-10-00
Page 5
October 01/2013