AUTOMATIC FREE-WHEELING HUB INDICATOR SYSTEM - Generallnformation 8-211
3. Automatic free-wheeling hub in free condition
For the free condition, although there are (when the vehicle is traveling) output signals from the vehicle-
speed sensor, there are no signals from the pulse generator, with the result that the memory circuit is
erased (because reset signals are output from the lock-discrimination circuit), and so the indicaotr light
does not illuminate.
I
Lock Use-detection
-discrimination
Memory ipeed sensor Ignition switch
Automatic free-
detection circuit
circuit
circuit
Automatic free-wheeling
indicator control unit -
hub i
Sub fusible link
link
Pulse generator cross-sectional view PULSE GENERATOR
Coil hgnet
16W1547
rator
Front out-
put shaft
16W1546 The pulse generator is located at the rear part of the front
output shaft of the transfer, and is composed of the magnet,
the coil and the pole (iron core).
When a magnetic material (iron, nickel, etc.) is brought close
to and moved away from the pole (iron core), the magnetic flux
within the pole changes, thus generating AC voltage in the
coil.
Because the front output shaft does not rotate when the
automatic free-wheeling hub is in the free condition, there is
no generation of AC voltage in the pulse generator.
In the locked condition, however, the front output shaft and
the pulse rotor rotate, with the result that the magnetic flux
(within the p o e I (’ Iron core) of the pulse generator) changes in
accordance with the rotations of the pulse rotor, thereby
generating AC voltage in the coil.
This AC voltage is transmitted to the automatic free-wheeling
hub indicator control unit.
STB Revision
8-214 AUTOM TIC FREE-WHEELING VU6 INDICATOR SYSTEM - Circuit Diagram
I
m I IA-21 m
v?~
r:
BI I To column switch
2
[Refer to P.8-461 CT
= 9’i A I
I
m z
I ’
c: d
I ’
LR
!J
I I 1
CIRCUIT DIAGRAM
AUTOMATIC FREE-WHEELING HUB INDICATOR SYSTEM
CIRCUIT
F==e=%
Battery lu-!
A-02 Sub fusible link
- 15-w r-)5-w 0.5-G
2-w
I I I I
Main fusible
link
7
N
-22
3
Pulse c:
generator
h Ignition switch
I /Locking check circuit 1
q IIEI Combination meter
Automatic free-wheeling hub
indicator control unit
1 B R
Em El1 Y L
Remark
For information concerning the ground points (example: q ),
refer to P.8-7.
37W610
Wiring color code
B: Black Br: Brown
G: Green L: Blue
LI: Light blue Lg: Light green
0: Orange P: Pink “,r: RG,‘d”Y
Y: Yellow
W: White
1 STB Revision
24-4 HEATERS c Circuit Diagram
CIRCUIT DIAGRAM
I
El3 1 El1
lanition switch
Sub fusible link
Battery link m- (Fuse B)
3
1 I (Ignition switch)
Multi-purpose Q
fuse
M $5
LA,:
a3
To turn sional flasher (Init
0.85RI I I f-Y ’ I [Refer to P.8-49.7- - - ‘d -r i
I Blower
Blower switch
CJ -18
Heater r&v Blower motor ?
resistor
Remark
For information concerning the ground points (example:
q ),
refer to P.8-7.
Wiring color code
B: Black Br. Brown
G: Green
Gr: Gray
LI: Light blue
0: Orange P: Pink
R: Red L: Blue
Y: Yellow Lg: Light green
W: White
1 STB Revision
24-26 AIR-CONDITIONING - Circuit Diagram
CIRCUIT DIAGRAM I N24ZB--
Ignition switch
Main
link Sub fusible link
(Fuse B)
I Battery
3
To turn signal flasher unit ~
0.85-RL [Refer to P.8-49.1
i
I 1 ,0.85-LW F
0.85-WB*
“yl lLG1 [Refer to P.8-62.1
C-C
Blower
motor
M
E!! Blower motor
T IA2
Ml
kFF -18
Heater relav N BI ower switch B L
EEJ LR LR resistor
LB LY
El3 LR LI
x’, $2
Wiring color code
B: Black Br: Brown G: Green
Gr: Gray L: Blue Lg: Light green
LI: Light blue 0: Orange P: Pink R: Red
Y: Yellow W: White
/ ST6 Revision
