Suzuki Grand Vitara JB416 / JB420 (ESP model). Service manual - part 80

 

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Suzuki Grand Vitara JB416 / JB420 (ESP model). Service manual - part 80

 

 

5A-19 Automatic Transmission/Transaxle: 

Scan Tool Data Definitions
Gear Position (1

ST

, 2

ND

, 3

RD

, 4

TH

, N, R):  This 

parameter is indicated actual gear position.

Throttle Position (%):  Throttle valve opening ratio sent 

from ECM on CAN communication line.

Input Shaft Rev (RMP):  Input shaft revolution 

computed by reference pulses coming from input 
shaft speed sensor on transmission case. 

Output Shaft Rev (RMP):  Output shaft revolution 

computed by reference pulses coming from output 
shaft speed sensor on transmission case.

Vehicle Speed 1 (Km/h):  This parameter is competed 

by output shaft speed sensor and 4L/N switch (if 
equipped) on TCM. Gear shift schedule relate this 
parameter.

Battery Voltage (V):  Battery voltage read by TCM as 

analog input signal by TCM.

ATF Temp (

°C):  ATF temperature detected by signal 

from transmission fluid temperature sensor installed 
in valve body.

TCC Sol Duty (%):  Electric current value ration 

between electric current value being outputted from 
TCM to TCC pressure control solenoid and 
maximum value can be outputted by TCM.

Press Cont Sol (%):  Electric current value ratio 

between electric current value being outputted from 
TCM to pressure control solenoid-A and maximum 
value can be outputted by TCM.

Slip RPM (RMP):  This parameter indicates slipping 

rotation in the torque converter (difference between 
input shaft rotation and engine rotation).

Vehicle Speed 2 (Km/h):  Actual vehicle speed 

detected by signal on CAN communication line fed 
from ECM.

Engine Speed (RPM):  Engine speed computed by 

signal on CAN communication line fed from ECM.

Coolant Temp (

°C):  Engine coolant temperature 

detected by signal on CAN communication line fed 
from ECM.

Target Engine Torque (N

m):  Target engine torque 

detected by signal on CAN communication line fed 
from ECM.

Engine Torque (N

m):  Actual engine torque detected 

by signal on CAN communication line fed from ECM.

MIL Request (ON, OFF) (for E-OBD model):  ON: 

Signal which TCM requires combination meter to 
turn ON malfunction indicator lamp.
OFF: Signal which TCM does not require 
combination meter to turn ON malfunction indicator 
lamp.

Malfunction Indication On (ON, OFF) (for non E-OBD 

model):  ON: Signal which TCM requires 
combination meter to turn ON transmission warning 
lamp.
OFF: Signal which TCM does not require 
combination meter to turn ON transmission warning 
lamp.

Fuel Cut Flag:  ON: Signal which inform that fuel cut is 

operating.
OFF: Signal which inform that fuel cut is not 
operating.

O/D Off Switch (ON, OFF):  Inputted signal from “3” 

position switch in selector lever assembly.
ON: Shift selector lever to “3” range
OFF: Shift selector lever to other above range

Trans Range (P, R, N, D, 2, L):  It indicates 

transmission range according to transmission range 
switch signal.

Shift Sol A Con/ MON (ON, OFF):  COM-ON: ON 

command being outputted to shift solenoid-A.
COM-OFF: OFF command not being outputted to 
shift solenoid-A.
MON-ON: Electricity being passed to shift solenoid-
A.
MON-OFF: Electricity not being passed to shift 
solenoid-A.

Shift Sol B Con / MON (ON, OFF):  COM-ON: ON 

command being outputted to shift solenoid-B.
COM-OFF: OFF command not being outputted to 
shift solenoid-B.
MON-ON: Electricity being passed to shift solenoid-
B.
MON-OFF: Electricity not being passed to shift 
solenoid-B.

Mode Select Switch (NORMAL, POWER):  Inputted 

signal from P/N mode switch on center console.
NORMAL: P/N mode switch is at OFF position.
POWER: P/N mode switch is at ON position.

4WD Low Switch (if equipped) (ON, OFF):  Inputted 

signal from 4L/N switch on transfer case.
ON: Transfer gear position is 4L or N
OFF: Transfer gear position is 4H

D RANGE SIGNAL (P/N range, D range):  ON: Signal 

which TCM require ECM to increase idle speed
OFF: Signal which TCM does not require ECM to 
increase idle speed

A/C Switch (ON, OFF):  ON: Signal which inform that 

air conditioner compressor is turned ON.
OFF: Signal which inform that air conditioner 
compressor is turned OFF.

Brake Switch (ON, OFF):  Brake light switch position 

detected by signal on CAN communication line fed 
from ECM.
ON: Brake pedal depressed
OFF: Brake pedal released

Accel Actual Pos (%):  Accelerator pedal opening ratio 

detected by signal on CAN communication line fed 
from ECM.

Automatic Transmission/Transaxle:  5A-20

No Gear Shift to 4th Gear

S5JB0E5104020

System Description
TCM does not shift to 4th gear under any of the following condition.
• “3” position switch signal is inputted.
• 4L/N switch (if equipped) is turned ON. (4L or N mode)
• TCM detects the following DTCs.

DTC, P0722, P0752, P0962, P0963, P0973, P0974, P0976, P0977, P1702

Troubleshooting

WARNING

!

 

• When performing a road test, select a place where there is no traffic or possibility of a traffic 

accident and be very careful during testing to avoid occurrence of an accident.

• Road test should be carried out with 2 persons, a driver and tester, on a level road.

 

Step

Action

Yes

No

1

Was “A/T System Check” performed?

Go to Step 2.

Go to “A/T System 
Check in related 
manual”.

2

Check DTC

Is DTC, P0722, P0752, P0962, P0963, P0973, P0974, 
P0976, P0977 or P1702 detected?

Perform DTC Flow to 
repair and retry.

Go to Step 3.

3

ECT check
1) Warm up engine to normal operating temperature.
2) Check ECT monitored by TCM using scan tool.

Is ECT indicated –40 

°

C (–40 

°

F)?

Go to Step 4.

Faulty ECT sensor, its 
circuit or engine cooling 
system. If OK, substitute 
a known-good TCM and 
recheck.

4

“3” position switch signal inspection
1) With ignition switch ON, check voltage between terminal 

“E92-20” of TCM connector and ground under the 
following conditions.

“3” position switch specification
Shift selector lever to “P”, “R”, “N” or “D” range: 2.9 
– 3.8 V
Shift selector lever to “3”, “2” or “L” range: 1.4 – 2.0 
V

Is result as specified?

• For vehicle equipped 

with 4L/N switch, go 
to Step 5.

• For vehicle equipped 

without 4L/N switch, 
substitute a known-
good TCM and 
recheck.

Faulty “3” position 
switch or its circuit. If 
OK, substitute a known-
good TCM and recheck.

5

4L/N switch signal inspection
1) With ignition switch ON, check voltage between terminal 

“E93-4” of TCM connector and ground.

4L/N switch specification
Transfer gear position “4H”: Battery voltage
Transfer gear position “4L” or “N”: 0 – 2 V

Is result as specified?

Substitute a known-
good TCM and recheck.

Faulty 4L/N switch or its 
circuit. If OK, substitute 
a known-good TCM and 
recheck.

5A-21 Automatic Transmission/Transaxle: 

No Lock-Up Occurs

S5JB0E5104021

System Description
TCM turns TCC pressure control solenoid OFF under any of the following conditions.
• Engine coolant temperature is lower than 60 

°C (140 °F).

• 4L/N switch (if equipped) is turned ON. (4L or N mode)
• Brake light switch is turned ON. (Brake pedal is depressed)
• TCM detects the following DTCs.

P0712, P0713, P0717, P0722, P0962, P0963, P0973, P0974, P0976, P0977, P1702, P1703, P1774, P1777, P2763 
and P2764

Troubleshooting

WARNING

!

 

• When performing a road test, select a place where there is no traffic or possibility of a traffic 

accident and be very careful during testing to avoid occurrence of an accident.

• Road test should be carried out with 2 persons, a driver and tester, on a level road.

 

Step

Action

Yes

No

1

Was “A/T System Check” performed?

Go to Step 2.

Go to “A/T System 
Check in related 
manual”.

2

Check DTC

Is DTC P0712, P0713, P0717, P0722, P0962, P0963, 
P0973, P0974, P0976, P0977, P1702, P1703, P1774, 
P1777, P2763 or P2764 detected?

Perform DTC Flow to 
repair and retry.

Go to Step 3.

3

ECT check
1) Warm up engine to normal operating temperature.
2) Check ECT using scan tool.

Is ECT more than 60 

°

C (140 

°

F)?

• For vehicle equipped 

with 4L/N switch, go 
to Step 4.

• For vehicle equipped 

without 4L/N switch, 
go to Step 5.

Faulty ECT sensor, its 
circuit or engine cooling 
system. If OK, substitute 
a known-good TCM and 
recheck.

4

4L/N switch signal inspection
1) With ignition switch ON, check voltage between terminal 

“E92-4” of TCM connector and ground.

4L/N switch specification
Transfer gear position or “4H”: Battery voltage
Transfer gear position “4L” or “N”: 0 – 2 V

Is result as specified?

Go to Step 5.

Faulty “4L” switch or its 
circuit. If OK, substitute 
a known-good TCM and 
recheck.

5

Brake light switch signal inspection
1) With ignition switch ON, check voltage between terminal 

“E61-34” of ECM connector and ground.

Brake light switch specification
Brake pedal is released: 0 – 1 V
Brake pedal is depressed: Battery voltage

Is result as specified?

Substitute a known-
good TCM and recheck.

Mis-adjusted brake light 
switch, faulty brake light 
switch or its circuit. If 
OK, substitute a known-
good TCM and recheck.

Automatic Transmission/Transaxle:  5A-22

DTC P1774: CAN Communication Bus Off

S5JB0E5104041

Wiring Diagram

WHT

RED

WHT

RED

G44-18

G44-19

G44

[A]

1

2

3

4

5

6

7

8

9

10

11

14

15

16
36

34 33 32

30 29

24 23

37

18

19

20

G28-8

G28-10

WHT/BLU

WHT/BLU

WHT/RED

WHT/RED E23-4

E23-19

WHT

RED

WHT

RED

E92-17

E92-7

WHT

RED

E91-22
E91-23

WHT

RED

RED

G31-1
G31-3

G31-4

[C]

6

5

16 15 14 13 12 11

4 3

24 23

21

22

10 9

8

7

2

1

19

20

18 17

E92

1

2

3

4

5

6

7

8

9

10

11

17

1615141312

2221201918

G28

[F]

[H]

G31

1

2

3

4

7

8

9

10

11

14

15

16
36

34

35

24 23

21

22

28 27

25

26

37

39 38

40

18 17

13 12

19

20

[G]

E91

1

2

3

10

11

12

16

17

18

15 14 13

19

20

21

25

26

5

6

[I]

E53

[E]

E03

15
16
17
18
19
20
21
22
23
24
25

2
3
4
5
6
7
8
9

10
11
12

1

13

14

26

G31-2

WHT

1

2

3

4

9

5

6

8

7

[L]

E03-12

E03-10

E03-6

E03-8

10

11

[K]

E53-13

E53-42

E53-44

E53-46

[D]

8 7

6 5 4 3

2 1

9

10

11

12

13

14

15

16

16

1

15

2

3

4

5

6

7

8

9

10

11

12

13

14

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

[J]

G45

10 9

3 2 1

WHT

RED G45-9

G45-10

E23

[B]

2 1

3

4

18

19

5

6

7

10

11

17

20

47 46

49

50

51

21

22

52

16

25

9

24

14

29

55

57

5453

59

60

58

26

27

28

15
30

56

48

32 31

34

35

36

37

40

42

3938

44

45

43

41

33

12

13

23

8

I5JB0D510005-01

[A]: Keyless start control module 

connector (if equipped) (viewed 
from harness side)

[G]: 4WD control module connector (if 

equipped) (viewed from harness 
side)

1. BCM

7. ABS hydraulic unit / control 

module

[B]: ECM connector (viewed from 

harness side)

[H]: BCM connector (viewed from 

harness side)

2. 4WD control module (if equipped)

8. Combination meter

[C]: TCM connector (viewed from 

harness side)

[I]: ESP

® control module connector 

(if equipped) (viewed from 
terminal side)

3. TCM

9. Junction connector

[D]: DLC (viewed from terminal side)

[J]: Steering angle sensor connector 

(if equipped) (viewed from 
harness side)

4. Keyless start control module (if 

equipped)

10. ESP

® control module (if 

equipped)

[E]: ABS hydraulic unit / control 

module connector (viewed from 
terminal side)

[K]: Vehicle equipped with ESP

® 

system

5. DLC

11. Steering angle sensor (if 

equipped)

[F]: Combination meter connector 

(viewed from harness side)

[L]: Vehicle equipped without ESP

® 

system

6. ECM

 

 

 

 

 

 

 

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