1-74
ENGINE <TURBO>
-
Control System
ACTUATORS AND CONTROL
FAN MOTOR RELAY (RADIATOR AIR CONDITIONING CONDENSER)
This relay controls the radiator fan and air
condition-
control module.
ing
condeser
fan based on signals from the engine
N7l
BK2OAA
GENERATOR G TERMINAL
N71
BK2SAA
The engine control module limits the generator
out-
put current by duty control of the continuity between
generator terminal G and the ground.
--
I+
Trio diode
1
$-/$-I+
/
1:
--------
&---------
-
’
’
-
a
’
-
’
=
II-+,
coil
u-
.
x
f
I---
Field
I
coil
I
I I
’
‘d
\-
I
I
L
---_----_--------------
-------_
---_
-----JI
Voltage regulator
\
111
3.
Generator
\
-_I
S
terminal voltage: 14.4 V or more
Engine control module
lFUO889
When there is no continuity between generator
ter-
minal G and the ground (let this be 100% duty),
transistor No. 1 (Trl) stays in the always ON state.
When the voltage at generator terminal S reaches
14.4 V, the power transistor is forced to OFF to
adjust the generator output voltage to 14.4 V. This
operation is the same as that of the conventional
generator.