Chery Tiggo 5 (T21). Manual — part 360

32–

31

32

DTC

B0070-11

Belt Pretensioner Front Driver Loop Circuit Short to
Ground

DTC

B0070-12

Belt Pretensioner Front Driver Loop Circuit Short to
Battery

DTC

B0070-1A

Belt Pretensioner Front Driver Loop Circuit Resistance
Below Threshold

DTC

B0070-1B

Belt Pretensioner Front Driver Loop Circuit Resistance
Above Threshold

DTC

B0070-1C

Belt Pretensioner Front Driver Loop Circuit Voltage Out
of Range

32–

32

32

ET21320060

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

SRS
CONTROL
MODULE

I-046

IGNITION SWITCH

ON OR START

10A

RF08

INSTRUMENT
PANEL FUSE
AND RELAY BOX

I-007

B

I-045

16

1

2

3

4

5

6

7

8

9 10 11 12

13

85

85

87

87 30

87 30

30

86

86

85

86

14 15 16 17 18 19 20 21 22 23 24

25

27

26

B

I-007

18 17 16 15 14 13 12 11 10

9

8

7

6

5

4

3

2

1

1

2

-

+

W

I-035

B

B-034

LW

LW

LB

LB

+

-

2

1

10

9

1

2

B-072

I-035

B-059

DRIVER SEAT BELT

PRE-TENSIONER

B-034

*1

*2: SRS control module connector is B-072

*1: SRS control module connector is I-046

B

B-072

8

R

R

1

4

I-036

B-055

*2

16 15 14 13 12 11 10

8

7

6

5

4

3

2

1

9

W

I-036

32–

33

32

Self-diagnosis Detection Logic

HINT:
When performing electrical diagnosis and test, always refer to the relevant circuit diagram for the special
circuit and component information.

Diagnosis Procedure

a. Turn ignition switch to LOCK, disconnect the negative battery cable and wait for at least 90 seconds.
b. Disconnect driver seat belt pretensioner connector, and connect the new driver seat belt pretensioner

connector to connector B-034.

c. Reconnect the negative battery cable and wait for a few seconds.
d. Turn ignition switch ON and wait for at least 90 seconds.
e. Use X-431 3G diagnostic tester to clear the DTCs.
f. Turn ignition switch to LOCK.
g. Turn ignition switch ON and wait for at least 90 seconds.
h. Use X-431 3G diagnostic tester to check if the DTCs are still output.

DTC Code

DTC Definition

DTC Detection

Condition

Warning Light

Condition

Possible Cause

B0070-11

Belt Pretensioner Front
Driver Loop Circuit
Short to Ground

Ignition switch ON

ON

 Driver seat belt

pretensioner

 Wire harness and

connector

 SRS control

module assembly

B0070-12

Belt Pretensioner Front
Driver Loop Circuit
Short to Battery

B0070-1A

Belt Pretensioner Front
Driver Loop Circuit
Resistance Below
Threshold

B0070-1B

Belt Pretensioner Front
Driver Loop Circuit
Resistance Above
Threshold

B0070-1C

Belt Pretensioner Front
Driver Loop Circuit
Voltage Out of Range

1

Check driver seat belt pretensioner

WARNING

 Never measure the driver seat belt pretensioner directly, otherwise, it may cause serious personal injury

due to accidental deployment of the airbag.

Replace driver seat belt pretensioner

NG

OK

32–

34

32

Use circuit diagram as a guide to perform the following procedures:
a. Turn ignition switch to LOCK, disconnect the negative battery cable and wait for at least 90 seconds.
b. Disconnect the driver seat belt pretensioner connector B-034 and SRS control module assembly

connector I-046/B-072.

c. Disconnect the body wire harness connector B-059 and instrument panel wire harness connector I-035

(*1).

d. Check if wire harnesses are worn, pierced, pinched or partially broken.
e. Check for broken, bent, protruded or corroded terminals.
f. Check if related connector terminal contact pins are in good condition.

a. Turn ignition switch to LOCK, disconnect the negative

battery cable and wait for at least 90 seconds.

b. Disconnect the SRS control module assembly connector

I-046/B-072.

c. Disconnect the driver seat belt pretensioner connector



B-034.

d. Connect the negative battery cable and wait for a few

seconds.

e. Turn ignition switch ON.
f. Using a digital multimeter, measure the voltage between

driver seat belt pretensioner connector B-034 and body
ground to check for a short circuit to power supply
according to the table below.
Standard Voltage

2

Check wire harness and connector

Repair or replace instrument panel/body
wire harness and connector

3

Check driver seat belt pretensioner control circuit

NG

OK

RT21320240

-

+

V

1

2

-

+

B-034

Multimeter

Connection

Condition

Specified

Condition

B-034 (1) - Body

ground

Ignition switch ON

Below 1 V

B-034 (2) - Body

ground

Ignition switch ON

Below 1 V