Isuzu KB P190. Manual - part 1104

7A2-132   TRANSMISSION CONTROL SYSTEM (JR405E)

Shift Speed Table 

Euro 3 specification engine 

Final gear ratio & tire size

41/11 (3.727) & 215/70R15 

43/10 (4.300) & 245/70R16 

Gear

Accel. 

pedal 

position 

(%)

Normal mode

Power drive mode

4L mode

Vehicle 

speed 

(km/h)

Vehicle 

speed 

(MPH)

Output 

shaft 

speed 

(RPM)

Vehicle 

speed 

(km/h)

Vehicle 

speed 

(MPH)

Output 

shaft 

speed 

(RPM)

Vehicle 

speed 

(km/h)

Vehicle 

speed 

(MPH)

Output 

shaft 

speed 

(RPM)

Upshift

1-2

50

27-34

16-20

930

31-38

19-23

1054

30-37

18-22

1023

100

38-45

23-27

1271

38-45

23-27

1271

34-41

20-25

1147

2-3

50

49-57

29-34

1612

58-66

35-40

1891

55-63

33-38

1798

100

72-80

43-48

2325

72-80

43-48

2325

71-79

43-47

2294

3-4

50

87-96

52-58

2790

97-106

58-64

3099

84-93

50-56

2697

100

113-123

68-74

3595

113-123

68-74

3595

113-123

68-74

3595

Downshift

4-3

0

29-36

17-22

992

29-36

17-22

992

29-36

17-22

992

50

66-74

40-44

2139

74-82

44-49

2387

71-79

43-47

2294

100

108-117

65-70

3440

108-117

65-70

3440

98-107

59-64

3130

3-2

0

6-12

4-7

279

6-12

4-7

279

6-12

4-7

279

50

30-37

18-22

1023

47-55

28-33

1550

45-53

27-32

1488

100

67-75

40-45

2170

67-75

40-45

2170

59-67

35-40

1922

2-1

0

6-12

4-7

279

6-12

4-7

279

6-12

4-7

279

50

10-16

6-10

403

19-26

11-16

682

18-25

11-15

651

100

29-36

17-22

992

29-36

17-22

992

27-34

16-20

930

TRANSMISSION CONTROL SYSTEM (JR405E)   7A2-133

Except Euro 3 specification engine 

Final gear ratio & tire size

41/11 (3.727) & 215/70R15 

43/10 (4.300) & 245/70R16 

Gear

Accel. 

pedal 

position 

(%)

Normal mode

Power drive mode

4L mode

Vehicle 

speed 

(km/h)

Vehicle 

speed 

(MPH)

Output 

shaft 

speed 

(RPM)

Vehicle 

speed 

(km/h)

Vehicle 

speed 

(MPH)

Output 

shaft 

speed 

(RPM)

Vehicle 

speed 

(km/h)

Vehicle 

speed 

(MPH)

Output 

shaft 

speed 

(RPM)

Upshift

1-2

50

27-34

16-20

930

31-38

19-23

1054

30-37

18-22

1023

100

35-42

21-25

1178

35-42

21-25

1178

34-41

20-25

1147

2-3

50

49-57

29-34

1621

58-66

35-40

1891

55-63

33-38

1798

100

70-78

42-47

2263

70-78

42-47

2263

71-79

43-47

2294

3-4

50

87-96

52-58

2790

97-106

58-64

3099

84-93

50-56

2697

100

109-119

65-71

3471

109-119

65-71

3471

113-123

68-74

3595

Downshift

4-3

0

39-36

23-22

992

29-36

17-22

992

29-36

17-22

992

50

66-74

40-44

2139

74-82

44-49

2387

71-79

43-47

2294

100

104-113

62-68

3316

104-113

62-68

3316

98-107

59-64

3130

3-2

0

6-12

4-7

279

6-12

4-7

279

6-12

4-7

279

50

30-37

18-22

1023

47-55

28-33

1550

45-53

27-32

1488

100

65-73

39-44

2108

65-73

39-44

2108

59-67

35-40

1922

2-1

0

6-12

4-7

279

6-12

4-7

279

6-12

4-7

279

50

10-16

6-10

403

19-26

11-16

682

18-25

11-15

651

100

29-36

17-22

992

29-36

17-22

992

27-34

16-20

930

7A2-134   TRANSMISSION CONTROL SYSTEM (JR405E)

TCM Signal Test 

Inspection Tool

Use a DMM to measure voltage and circuit continuity.
Also use an oscilloscope to measure waveform. Refer
to the following table for the specified ranges or
reference waveform. 

Since the TCM terminals are extremely small, use
appropriate test adapter from the test adapter kit. This
will make measurement easier.

Pin No.

Wire color

Pin function

DMM (+)

DMM (-)

Test condition

Standard value

1 of C-94

RED/ WHT

Battery voltage

1 of C-94

Ground

Any time

Nearly 12 volts

2 of C-94

YEL/ VIO

P range switch signal

2 of C-94

Ground

P range

Nearly 12 volts

Other than P range

Less than 2 volts

3 of C-94

RED

Brake pedal switch 

signal

3 of C-94

Ground

Pedal is released

Less than 2 volts

Pedal is applied

Nearly 12 volts

4 of C-94

PNK/ WHT

3rd start lamp control

4 of C-94 

(back probe)

Ground

Lamp OFF

Nearly 12 volts

Lamp ON

Less than 2 volts

5 of C-94

VIO/ GRN

Keyword serial data 

communication

5 of C-94

7 of B-58

Ignition OFF

Continuity

6 of C-94

—

Not used

—

—

—

—

7 of C-94

BLK/ RED

Engine speed signal 

input

7 of C-94 

(back probe)

5 of C-95 

(back 

probe)

Engine run at 2000 

RPM

Nearly 6.2 volts by 

AC range or 

waveform 

8 of C-94

—

Not used

—

—

—

—

9 of C-94

—

Not used

—

—

—

—

10 of C-94

BLK/ YEL

Vehicle speed signal 

output (2WD)

10 of C-94 

(back probe)

5 of C-95 

(back 

probe)

Vehicle run at 20 km/h 

(12 MPH)

Nearly 6.5 volts by 

AC range or 

waveform

11 of C-94

GRN/ WHT

3rd start switch signal

11 of C-94 

(back probe)

Ground

Switch is released

Nearly 12 volts

Switch is pressed

Less than 2 volts

12 of C-94

BLU/ WHT

4WD low signal output

12 of C-94 

(back probe)

Ground

4L mode

Less than 2 volts

Other than 4L

Nearly 12 volts

13 of C-94

—

Not used

—

—

—

—

14 of C-94

—

Not used

—

—

—

—

15 of C-94

—

Not used

—

—

—

—

16 of C-94

RED/ WHT

Accelerator pedal 

position (APP) signal 

input

16 of C-94 

(back probe)

5 of C-95

Pedal is released (0%)

Off duty ratio 10% 

Pedal is fully applied 

(100%)

Off duty ratio 90%

17 of C-94

BLK/GRN

3 range switch signal

17 of C-94

Ground

3 range

Nearly 12 volts

Other than 3 range

Less than 2 volts

18 of C-94

YEL/ BLK

Diagnostic request 

switch

5 of C-94

11 of B-

58

Ignition OFF

Continuity

19 of C-94

ORN/ BLU

Transmission oil 

temperature lamp 

control

19 of C-94 

(back probe)

Ground

Lamp OFF

Nearly 12 volts

Lamp ON

Less than 2 volts

20 of C-94

GRY/ YEL

Check trans lamp 

control

20 of C-94 

(back probe)

Ground

Lamp OFF

Nearly 12 volts

Lamp ON

Less than 2 volts

21 of C-94

PNK

Power drive lamp 

control

21 of C-94 

(back probe)

Ground

Lamp OFF

Nearly 12 volts

Lamp ON

Less than 2 volts

TRANSMISSION CONTROL SYSTEM (JR405E)   7A2-135

22 of C-94

—

Not used

—

—

—

—

23 of C-94

—

Not used

—

—

—

—

24 of C-94

GRN/ YEL

Power drive switch 

signal

24 of C-94 

(back probe)

Ground

Switch is OFF

Nearly 12 volts

Switch is ON

Less than 2 volts

1 of C-95

RED/ YEL

2-4 brake TFP switch 

signal

1 of C-95 

(back probe)

Ground

2nd or 4th gear

Less than 2 volts

Other than 2nd or 4th 

gear

Nearly 12 volts

2 of C-95

PNK/ BLK

2 range switch signal

2 of C-95

Ground

2 range

Nearly 12 volts

Other than 2 range

Less than 2 volts

3 of C-95

BRN/ RED

ISS sensor signal

3 of C-95 

(back probe)

5 of C-95 

(back 

probe)

Vehicle run at 20 km/h 

(12 MPH) in L range 

with 1st gear

Nearly 6.5 volts by 

AC range or 

waveform

4 of C-95

BLU

TFT sensor signal

4 of C-95

14 of C-

95

Ignition OFF

Refer to 

Temperature vs. 

Resistance table

5 of C-95

BLK

Ground

5 of C-95

Ground

Ignition OFF

Continuity

6 of C-95

BLU/ BLK

Low & reverse brake 

solenoid control

6 of C-95 

(back probe)

22 of C-

95 (back 

probe)

P or N range 

Nearly 6.2 volts by 

AC range or 

waveform

7 of C-95

BLK/ YEL

2 & 4 brake solenoid 

control

7 of C-95 

(back probe)

22 of C-

95 (back 

probe)

P or N range 

Nearly 6.2 volts by 

AC range or 

waveform

8 of C-95

RED

High clutch solenoid 

control

8 of C-95 

(back probe)

22 of C-

95 (back 

probe)

P or N range 

Nearly 6.2 volts by 

AC range or 

waveform

9 of C-95

WHT/ BLU

Low clutch solenoid 

control

9 of C-95 

(back probe)

22 of C-

95 (back 

probe)

D range with 4th gear

Nearly 6.2 volts by 

AC range or 

waveform

10 of C-95

RED/ BLK

N range switch signal

10 of C-95

Ground

2 range

Nearly 12 volts

Other than 2 range

Less than 2 volts

11 of C-95

BLU

D range switch signal

11 of C-95

Ground

D range

Nearly 12 volts

Other than 2 range

Less than 2 volts

12 of C-95

YEL

Low & reverse brake 

TFP switch

12 of C-95 

(back probe)

Ground

R range or L range

Less than 2 volts

Other than R range or 

L range

Nearly 12 volts

13 of C-95

YEL/ RED

OSS sensor signal

13 of C-95 

(back probe)

5 of C-95 

(back 

probe)

Vehicle run at 20 km/h 

(12 MPH) in L range 

with 1st gear

Nearly 6.8 volts by 

AC range or 

waveform

14 of C-95

BLU/ BLK

TFT sensor low 

reference

4 of C-95

14 of C-

95

Ignition OFF

Refer to 

Temperature vs. 

Resistance table

15 of C-95

—

Not used

—

—

—

—

16 of C-95

—

Not used

—

—

—

—

17 of C-95

BLK

TCC solenoid control

17 of C-95 

(back probe)

5 of C-95 

(back 

probe)

TCC is commanded 

OFF

Waveform

TCC is commanded 

ON

Waveform

18 of C-95

WHT

Ignition voltage

18 of C-95

Ground

Ignition switch ON

Nearly 12 volts

Pin No.

Wire color

Pin function

DMM (+)

DMM (-)

Test condition

Standard value