Suzuki Grand Vitara JB416 / JB420 (ESP model). Service manual — part 71

4F-38 Electronic Stability Program:

DTC Troubleshooting

DTC C1090: ECM Detect Rolling Counter Failure from ESP

® Control Module

S5JB0E4604040

DTC Detecting Condition and Trouble Area

DTC Troubleshooting

C1078:
Lateral G sensor in yaw rate / G sensor assembly
calibration is incompleted.

• Yaw rate / G sensor assembly
• Lateral G sensor calibration is incompleted
• ESP

® control module

DTC Detecting Condition

Trouble Area

Step

Action

Yes

No

1

Was “Electronic Stability Program Check” performed?

Go to Step 2.

Go to “Electronic
Stability Program
Check”.

2

DTC check for ESP

®

1) Connect scan tool to DLC with ignition switch turned

OFF.

2) Turn ignition switch ON and check DTC for ESP

®.

Is there any DTC(s) other than C1075, C1076, C1077 and
C1078?

Go to applicable DTC
diag. flow.

Go to Step 3.

3

Check sensor calibration
1) Calibrate all sensors referring to “Sensor Calibration”.
2) Clear all DTC(s) and check DTC for ESP

®.

Is DTC C1075, C1076, C1077 and/or C1078 still detected?

DTC C1075: Replace
steering angle sensor.
DTC C1076: Replace
ESP

® hydraulic unit /

control module
assembly.
DTC C1077 / 1078:
Replace yaw rate / G
sensor assembly.

Calibration was
incompleted.

DTC Detecting Condition

Trouble Area

ESP

® control module rolling counter failure is detected by

ECM.

• CAN communication circuit
• ECM
• ESP

® control module

Step

Action

Yes

No

1

Was “Electronic Stability Program Check” performed?

Go to Step 2.

Go to “Electronic
Stability Program
Check”.

2

DTC check for ESP

®

1) Connect scan tool to DLC with ignition switch turned

OFF.

2) Turn ignition switch ON and check DTC for ESP

®.

Is there any DTC(s) other than C1038 and C1090?

Go to applicable DTC
diag. flow.

Go to Step 3.

3

DTC check for ECM
1) Check DTC for ECM.

Is DTC U0073 and/or DTC U0121 detected?

Go to applicable DTC
diag. flow.

Substitute a known-
good ESP

® hydraulic

unit / control module
assembly and recheck.

Electronic Stability Program: 4F-39

DTC C1091 / 1092 / 1093: ECM / TCM / 4WD Control Module Data in CAN Line Failure

S5JB0E4604041

DTC Detecting Condition and Trouble Area

DTC Troubleshooting

DTC U1073: Control Module Communication Bus Off

S5JB0E4604020

Refer to “DTC U1073: Control Module Communication Bus Off in Section 4E”.

DTC U1100: Lost Communication with ECM (Reception Error)

S5JB0E4604021

Refer to “DTC U1100: Lost Communication with ECM (Reception Error) in Section 4E”.

DTC Detecting Condition

Trouble Area

C1091:
ECM sent invalid signal to ESP

® control module.

• Engine control system
• ECM
• ESP

® control module

C1092:
TCM sent invalid signal to ESP

® control module. (for A/T

model)

• A/T system
• TCM
• ESP

® control module

C1093:
4WD control module sent invalid signal to ESP

® control

module. (if equipped 4WD control module)

• 4WD control system
• 4WD control module
• ESP

® control module

Step

Action

Yes

No

1

Was “Electronic Stability Program Check” performed?

Go to Step 2.

Go to “Electronic
Stability Program
Check”.

2

DTC check other control module than ESP

®

1) Check DTC for ECM, TCM and/or 4WD control module.

Is there any DTC(s)?

Go to applicable DTC
diag. flow.

Substitute a known-
good ESP

® hydraulic

unit / control module
assembly and recheck.

4F-40 Electronic Stability Program:

DTC U1101: Lost Communication with TCM (Reception Error)

S5JB0E4604042

Wiring Diagram

DTC Detecting Condition and Trouble Area

WHT

RED

WHT

RED

WHT/BLU

WHT

RED

WHT

RED

E91-22

E91-23

E53-13

E53-44

E53-46

WHT/BLU

WHT/RED

E23-19

E23-4

G31-1

G31-3

G44-19

G44-18

WHT

RED

WHT

RED

E92-17

E92-7

[F]

G44

1

2

3

4

5

6

7

8

9

10

11

14

15

16
36

34 33 32 31 30 29

24 23

37

18

19

20

[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

[G]

1

2

3

4

5

6

7

8

9

10

11

17

1615141312

2221201918

G28

[D]

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

E91

1

2

3

10

11

12

16

17

18

15 14 13

19

20

21

25

26

5

6

[E]

G28-8

G28-10

G45-9

G45-10

WHT/RED

E53-42

WHT

RED

WHT

RED

[A]

E53

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

[H]

G45

10 9

3 2 1

1

2

3

4

9

5

7

6

8

G31-2

G31-4

10

[B]

2 1

E23

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

I5JB0D460005-01

[A]: ESP

® control module connector (viewed from

terminal side)

[G]: Combination meter connector (viewed

from harness side)

5. 4WD control module (if equipped)

[B]: ECM connector (viewed from harness side)

[H]: Steering angle sensor connector

(viewed from harness side)

6. Keyless start control module (if equipped)

[C]: TCM connector (viewed from harness side)

1. ESP

® hydraulic unit / control module

assembly

7. Combination meter

[D]: BCM connector (viewed from harness side)

2. ECM

8. Steering angle sensor (if equipped)

[E]: 4WD control module connector (viewed from

harness side)

3. TCM

9. Junction connector

[F]: Keyless start control module connector (viewed

from harness side)

4. BCM

10. Data link connector (DLC)

DTC Detecting Condition

Trouble Area

TCM message data is missing from CAN communication.
(for A/T model)

• CAN communication circuit
• TCM
• ESP

® control module

Electronic Stability Program: 4F-41

DTC Troubleshooting

Step

Action

Yes

No

1

Was “Electronic Stability Program Check” performed?

Go to Step 2.

Go to “Electronic
Stability Program
Check”.

2

DTC check for ESP

®

1) Check DTC for ESP

®.

Is DTC U1101 and DTC U1073 detected together?

Go to “DTC U1073:
Control Module
Communication Bus Off
in Section 4E” for
troubleshooting.

Go to Step 3.

3

DTC check for TCM
1) Check DTC for TCM.

Is DTC P1774 detected?

Go to “DTC P1774:
CAN Communication
Bus Off in Section 5A”
for troubleshooting.

Go to Step 4.

4

Check each control module connectors
1) Check connection of connectors of all control modules

communicating by means of CAN.

2) Check DTC for ESP

®.

Is DTC U1101 detected?

Go to Step 5.

Check for intermittent
trouble referring to
“Intermittent and Poor
Connection Inspection
in Section 00 in related
manual”.

5

CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of ESP

® control module and

TCM communicating by means of CAN.

Is each CAN communication circuit between ESP

®

control

module and TCM opened, shorted or high resistance?

Repair or replace the
CAN communication
line.

Go to Step 6.

6

CAN communication circuit check
1) Disconnect connectors of all control modules

communicating by means of CAN.

Is each CAN communication circuit between disconnected
control modules (other than ESP

®

control module and TCM)

opened, shorted or high resistance?

Go to Step 7.

Repair or replace the
CAN communication
line.

7

DTC check for ESP

®

1) Connect connectors of disconnected control modules

communicating by means of CAN.

2) Disconnect each connector.

• ECM
• TCM
• BCM
• 4WD control module (if equipped)
• Keyless start control module (if equipped)
• Steering angle sensor

3) Check DTC for ESP

®.

Is DTC U1101 detected?

Check ESP

® control

module power and
ground circuit. If circuits
are OK, substitute a
known-good ESP

®

hydraulic unit / control
module assembly and
recheck.

Check applicable
control module power
and ground circuit. If
circuit is OK, substitute
a known-good
applicable control
module and recheck.