Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1730
CONSTRUCTION AND FUNCTION 7A1-17
ATF Thermo Sensor
•
The ATF thermo sensor detects the ATF temperature in the oil pan and sends signal to the TCM.
•
The ATF thermo sensor is of the thermister type that the resistance value changes according to the ATF
oil temperature.
•
The lower is the ATF temperature, the larger is the resistance, and vice versa.
•
When the ATF temperature exceeds 145
°
C, the TCM lights up the ATF temperature warning lamp in the
meter. When the ATF temperature decreases below 128
°
C, the ATF temperature warning lamp goes out.
•
The ATF thermo sensor is installed to the lower control valve body and integrated with the harness
assembly.
10.0
100.0
1,000.0
10,000.0
100,000.0
-30 -20 -10
0
10 20 30 40 50 60
70 80 90 100 110 120 130 140 150 160
ATF Temperature (°C)
Resistance (
)
Figure 29. Characteristic of Thermo Sensor
Figure 30. Location of Thermo Sensor
ATF Temperature (
°
C) Resistance
(Approximately)
−
30
°
C 29,613.7
Ω
0
°
C 6,028.0
Ω
10
°
C 3,822.1
Ω
30
°
C 1,681.7
Ω
50
°
C 819.1
Ω
100
°
C 117.6
Ω
128
°
C 98.3
Ω
135
°
C 84.6
Ω
145
°
C 68.8
Ω
7A1-18 CONSTRUCTION AND FUNCTION
Terminal Assembly
Pin No.
Connected to
Connected TCMPin No.
6 Line
Pressure
Solenoid
B23
12
Low & Reverse Brake Oil Pressure Switch
B12
5
Low & Reverse Brake Duty Solenoid
B6
11 Ground
Return
B22
4
Lock-up Duty Solenoid
B17
10
High Clutch Duty Solenoid
B8
3
Low Clutch Duty Solenoid
B9
9
2-4 Brake Duty Solenoid
B7
2 Oil
Thermo
Sensor
B4
8
Oil Thermo Sensor Ground
B14
1
High Clutch Oil Pressure Switch
B20
7
2-4 Brake Oil Pressure Switch
B1
1
2
3
4
5
6
8
9
10
11
12
7
Terminal Assembly
Inhibitor Switch
Figure 31. Pin Assignment
Figure 32. Location of Terminal Assembly
CONSTRUCTION AND FUNCTION 7A1-19
OIL PASSAGE
Figure 33. Oil Passage of Transmission Case
7A1-20 CONSTRUCTION AND FUNCTION
Figure 34. Oil Passage of Oil Pump
PARKING FUNCTION
•
By setting the select lever to the P range, the parking pawl is engaged with the parking gear and fixes the
output shaft.
•
By the movement of the select lever, the manual shaft on the side surface of the AT is moved. The
manual plate and parking rod in the AT are interlocked with the manual shaft. When the manual shaft
moves, the parking rod end pushes up the parking pawl.
•
The parking pawl is engaged with the parking gear when pushed up, and fixes the output shaft.
•
When the clutch is disengaged, it returns to the original position by the force of the return spring fixed to
the parking pawl.
Figure 35. Parking Function
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