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Group
28
Ignition systems
Design and function
5
1
Banery
2
5 Distributor
6 Spark plug
warning lamp
84
Coolanttemperalure sensor
86 Speedometer
16. Transmits
ignition
goes low
(0 V).
17.
Transmits
engine speed
18.
Spare.
19.
Spare.
20.
Grounds
control
unit
21.
Spare.
22.
Spare.
23.
ing.
24.
Spare.
25. Spare.
Power stagelignition coil connections
a Grounds power
stageJignition coil
b Receives
ig
nition
pulses
stage wh
ite sig
nal remains
(0
VI.
Resultant
high tension
(6}.
A Receives
supply
from battery
B
Grounded (supply ground).
C Transmits
signals
corresponding to number of ig nition pu
62
-
System
descriptions
42
t98 Thronle
218 Knock
260
41
3
Speed/position
420
Power
473
Regina control unit
482 Diagnostic unit
pulses to power
stage/ig
signals to Reg ina
(260).
1 4201
(signa
from control
unit
(260)lerminaI16.
hig
h
(5
V).
Power
generated in ignition coil is distributed by
(1) across
ig
•
,
•
switch
sensor
control
un
it
pick-up
stag elignit
ion coil
nition
coil
(420).
Power
control
unit
(473)
terminal
speedlposition
l
ground).
Control
stage
opens terminal B
nition switch
(2).
lses to
,
n
,.
.
stage
interrupts supply to
1.
pick-up
{4131for
unit permits
charging of coil
ground
connection when signal
distributor
(5)
to appropriate spark plug
speedometer
(86) in combined
coil
when
signal
computation
of
tim-
through power
goes
low
instru
ment.
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