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Group
28
Ignition systems
Design and function
EZ
-
118K
Control unit connections
3. Supplies
fault
indication signals to
4.
Supplies power to Hall
6.
Receives supply
from battery
7.
Grounded by
idling
9. Receives 12 V
supply
10.
Grounds Hall
generator
11
.
Grounds temperature
12.
Grounds
knock sensor
13.
Receives signals
from knock
14.
Grounds fu
el
cut-off
16.
Supplies ignition pulses
20. Grounds
con
trol
unit
24.
Receives
engine
speed/crankshaft
25.
Receives engine temperature
connections
Power stage
1.
Controls
cu
rrent
in
2. Grounded.
3.
Grounds
screen
of
4. Receives
pow
er
from
5.
Recei
ves ig
nition pu lses from
54
-
System
descriptions
•
"
,
•
"
•
test
terminal
generator in distributor
(1) across ignition
swit
ch (272)
when throttle is closed.
from AC pressure
(5).
sensor
(273)
(B
230
(2 18)
term inal
2.
sensor
(218).
solenoid valve
(271)
to
power
stage (419)
(260).
position
signal
from temperature
ignition
coil (4)
primary w inding
lead connec ted
to
term
battery
(1)
across ignit ion switch
control unit
,.
.
• ,.
,
"
(267)
when
test diode
(5).
switch
(2).
switch (8
1) and/or idling
K only).
(B230K
only).
term
inalS.
signal
from
Hall generator in
sensor
.
inalS.
(2).
(260).
0
0
,
is con
nected.
compensation relay
distri
butor
(5).
(273).
0
.
, ,
•
141114
(293).
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