The Epc System 950 Adventure - KTM 2003 950 Adventure Repair Manual

7-19
30
3
start/stop switch
C_BB/9
C_AB/9
1 2 7
orange 0.5
black-orange 0.5
orange 0.5
1
4
E
C
U
orange 1
31

The EPC system 950 Adventure

Mode of operation:
Battery voltage from the battery
switched on emergency OFF switch
The EPC valves are supplied with battery voltage via the emergency OFF switch, the ground (red/green cable) is switched by
5
the ECU.
The ECU receives a ground from the gear sensor
two gears is engaged.
If the throttle grip is opened all the way (which the ECU recognizes via the TPS
revolutions) in 2nd or 3rd gear, the ECU activates the ground control of the EPC valves.
Subsequently, the EPC valves will open an air connection to the carburetor diaphragm covers. A controlled amount of fresh air
can be sucked into the space above the diaphragm, reducing the vacuum over the carburetor diaphragm.
This causes the carburetor slides to open more slowly resulting in a lower air-gap area to be sucked in through the engine. The
engine performance and noise are significantly reduced.
NOTE: if the EPC valves are disconnected, this will not influence the other systems.
pick up
fuse
10 A
C_AT/2
C_AL1/2
2 1
20
2
yellow-blue 0.5
3
yellow-white 0.5
16 blue 0.5
10 yellow 0.5
black 0.5
1
8
6
13
7
4
11
19 violet-white 0.5
25 brown-white 0.5
26 red-green 0.5 orange 0.5
18
5
2 1 2 1
C_AW/2 C_AW1/2
EPC 1 EPC 2
is conducted to the ECU (control unit)
1
.
3
via the grey (2nd gear) or via the violet/brown (3rd gear) cable if one of the
6
orange 1
throttle position sensor
7
C_AR1/2
C_AM/3
3
2 1
blue-grey 0.5
pink 0.5
blue-white 0.5
black-brown 0.5
yellow-brown 0.5
grey 0.5
1
C_AR/3
2 1 2 1
C_AM2/3
C_AS1/2 C_AS/2
2nd
6
front
rear
neutral switch (N) / 2nd gear / 3th gear
through the switched on ignition lock
4
7
fuel pump relay
B
page 2/9
C
page 7/9
2
1
C_BA/1
octane selector
C_BF/1
1
3th N
) at a certain speed (or a certain number of
30
2
orange 1
fuse
5 A
3
2
4
1
2 1
C_AT/2
M
31
and the
2