Chery Tiggo 5 (T21). Manual — part 436

38–

25

38

DTC

B1103-00 LED Airbag Fault No Subtype Information

ET21380080

32

31

30

29

28

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

27

26

25

24

23

22

21

20

19

18

17

L

I-015

32

31

30

29

28

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

27

26

25

24

23

22

21

20

19

18

17

Gr

I-046

A32

A31

A30

A29

A28

A16

A15

A14

A13

A12

A11

A10

A9

A8

A7

A6

A5

A4

A3

A2

A1

A27

A26

A25

A24

A23

A22

A21

A20

A19

A18

A17

L

I-005

INSTRUMENT
CLUSTER

I-015

MICROPROCESSOR

SRS

CAN-L2

CAN-H2

29

30

2

17

I-046

SRS
CONTROL
MODULE

A30

A31

A14

A15

O

OB

O

OB

BCM A

I-005

CAN-L1

CAN-H1

CAN-L1

CAN-H1

CAN-L2

CAN-H2

38–

26

38

Self-diagnosis Detection Logic

Diagnosis Procedure

a. Remove the driver airbag from the malfunctioning vehicle. Install it to a new vehicle and perform a test.

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the instrument panel wire harness connectors

I-015 and I-005.

d. Using a digital multimeter, check for continuity between

instrument panel wire harness connectors I-015 and



I-005 according to the table below.

DTC Code

DTC Definition

DTC Detection

Condition

Possible Cause

B1103-00

LED Airbag Fault No
Subtype Information

Ignition switch ON

 Airbag system
 Wire harness or connector
 Instrument cluster

CAUTION

 When performing circuit diagnosis and test, always refer to circuit diagram for specific circuit and

component information.

1

Check driver airbag

Repair or replace driver airbag

NG

2

Check instrument panel wire harness and connector

OK

RT21380160

32

31

30

29

28

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

27

26

25

24

23

22

21

20

19

18

17

I-015

-

+

A32

A31

A30

A29

A28

A16

A15

A14

A13

A12

A11

A10

A9

A8

A7

A6

A5

A4

A3

A2

A1

A27

A26

A25

A24

A23

A22

A21

A20

A19

A18

A17

I-005

Multimeter

Connection

Condition

Specified

Condition

I-015 (29) -
I-005 (A30)

Always

Continuity

I-015 (30) -
I-005 (A31)

Always

Continuity

38–

27

38

e. Disconnect the instrument panel wire harness connectors

I-005 and I-046.

f. Using a digital multimeter, check for continuity between

instrument panel wire harness connectors I-015 and



I-046 according to the table below.

a. Connect all connectors.
b. Connect the negative battery cable.
c. Turn ignition switch to ON.
d. Use X-431 3G diagnostic tester (the latest software) to record and clear the DTCs stored in the instrument

panel control system.

e. Turn ignition switch to LOCK and wait for a few seconds.
f. Turn ignition switch to ON.
g. Use X-431 3G diagnostic tester (the latest software) to read the DTCs in the instrument cluster control

system again.

h. Read the DTCs.

RT21380210

-

+

32

31

30

29

28

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

27

26

25

24

23

22

21

20

19

18

17

I-046

A32

A31

A30

A29

A28

A16

A15

A14

A13

A12

A11

A10

A9

A8

A7

A6

A5

A4

A3

A2

A1

A27

A26

A25

A24

A23

A22

A21

A20

A19

A18

A17

I-005

Multimeter

Connection

Condition

Specified

Condition

I-015 (A14) -

I- 046 (2)

Always

Continuity

I-015 (A15) -

I- 046 (17)

Always

Continuity

Repair or replace instrument panel wire
harness and connector

NG

3

Reconfirm DTCs

OK

Result

Proceed to

DTC B1103-00 is output

NG

No DTC is output

OK

Replace instrument cluster

System is normal

NG

OK

38–

28

38

Self-diagnosis Detection Logic

Diagnosis Procedure

a. Use X-431 3G diagnostic tester (the latest software) to clear the DTCs stored in the instrument cluster

control system.

b. Turn ignition switch to LOCK and wait for a few seconds.
c. Turn ignition switch to ON.
d. Use X-431 3G diagnostic tester (the latest software) to read the DTCs in the instrument cluster control

system again.

e. Read the DTCs.

DTC

B1104-41 EEPROM Checksum Error

DTC Code

DTC Definition

DTC Detection

Condition

Possible Cause

B1104-41

EEPROM Checksum
Error

Ignition switch ON

 Instrument cluster

CAUTION

 When performing circuit diagnosis and test, always refer to circuit diagram for specific circuit and

component information.

1

Reconfirm DTCs

Result

Proceed to

DTC B1103-00 is output

NG

No DTC is output

OK

Replace instrument cluster

NG

System is normal

OK