Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual — part 98
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–10
Motor Position and Encoder Position Code
High-Low Shift Motor Position
High-Low shift Motor Encoder Signal
State of
Motor
Position a
Position b
Position c
Position d
Motor
High End
A
OFF
OFF
OFF
ON
High Position
Near High End
B
OFF
ON
OFF
ON
High Position
C
ON
ON
OFF
ON
Middle Zone (1)
D
ON
ON
ON
ON
Middle Zone (2)
E
OFF
ON
ON
ON
Neutral Position
F
OFF
ON
ON
OFF
Middle Zone (3)
G
ON
ON
ON
OFF
Low Position
H
ON
OFF
ON
OFF
Low Position
Low End
I
ON
OFF
ON
ON
Encode Position Plate
F04R100005
Legend
(1)
OFF Aria
(2)
ON Aria
(3)
Low
(4)
High
(5)
Earth
Shift High Range and Low Range
When the car is stops (less than 2km/h or 1.2 mph and
less than 1500 rpm), the AT selector position is neutral,
the brake is applied, and the TOD switch is changed to 4L
from TOD (or to TOD from 4L), the high-low shift motor
starts by power applied from the TOD control unit and
turns the shift shaft through the worm gear.
The shift shaft turns the shift cam through the torsional
spring.
The end of the shift cam moves the lockup shift fork and
the spiral groove on the outside of the shift cam slides the
high–low shift fork.
4B2–11
DRIVE LINE CONTROL SYSTEM (TOD)
Functions of TOD Switch and
Indicator Lamp
TOD Switch and Indication of Drive Mode
The TOD switch sends signals to the TOD control unit
which selects drive modes and controls the shift on the fly
system (axle disconnect : ADC).
TOD
switch
state
Drive mode
Transfer shift condition
Transfer
position
detection
Shift on the fly
TOD indicator
state
4HSW
4LSW
Axle
SW
ADC circuit
2H
Rear-wheel
drive (RWD)
Permissible during
driving (less than
100 km/h or 62 mph)
OFF
OFF
OFF
Turning on
electricity
TOD
Electronic
torque split
4WD (TOD)
OFF
OFF
ON
Turning off
electricity
AT: Neutral
Brake: Applied
The car stops
4L
Low range
mechanical
direct 4WD
(4L)
The car sto s
(less than 2 km/h or
1.2 mph and less than
1500 rpm)
OFF
ON
ON
Turning off
electricity
ADC: Shift on the fly
SW: Switch
TOD
Switch
TOD control unit terminal No.
TOD indicator
state
Switch
state
TOD indicator
TOD switch
state
state
7(Front)
8(Rear)
19(Auto)
30(2H)
43(4L)
2H
OFF
ON
OFF
ON
OFF
TOD
ON
ON
ON
OFF
OFF
4L
ON
ON
OFF
OFF
ON
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–12
Indication During Transition of Shift Rod
When the TOD switch is turned, and the signals from the
AXLE switch do not comply with the signal conditions of
the 4H and 4L switch, the indicator lamp state selected on
the TOD switch and light-off mode are repeatedly output
at an interval of 1.0 second.
NOTE: After the TOD switch is turned to the specified
position and the AXLE switch generates compliant
signals, the normal output status is returned.
C07R100010
Bulb Check
When the starter switch is turned on, the TOD indicator
lamps go on as shown below.
NOTE: Once the starter switch is turned on, all the TOD
indicator lamps are lit for two seconds even if the TOD
switch is in any position.
C07RW016
4B2–13
DRIVE LINE CONTROL SYSTEM (TOD)
Simplified checking method of ABS IN and BRAKE ON signals:
In the event that any of the signal inputs listed below are
observed while the self-diagnostic code is being
displayed (the self-diagnostic connector is short-circuited
to GND), you can simply check the ABS IN and BRAKE
ON signals as shown in the figures below.
C07R200002
Check Lamp
Check Lamp Bulb Check
When the starter switch is turned on in the normal state,
the control unit turns on the CHECK lamp to check the
bulb.
C07RW019
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