Geely Emgrand X7. Manual part — 457

Is the system working normally?

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8

Replace the airbag control module.

A. Replace the airbag control module. Refer to 9.2.7.1 Replacement of Airbag Control Module.

B. Confirm that the repair is completed.

9

The system is normal.

No

Yes

The system is normal.

Next

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Actuator Malfunction

Note: The workshop manual only diagnoses the driver airbag and driver seatbelt preloader, the rest actuators
diagnostics are similar. Please refer to Driver Airbag and Driver Seatbelt Preloader Diagnostic.

Driver Airbag Malfunction

Diagnostic Trouble Code (DTC)

Descriptions

B102100

High Resistance of Driver Airbag Module

B102200

Low Resistance of Driver Airbag Module

B102300

High Resistance of Driver Airbag Module

B102400 Driver

Airbag

Module

Short Circuit over the Voltage

Circuit diagram:

Refer to 9.2.6.4 Circuit Diagram in Warning Lamp Always On.

Diagnostic Steps:

1

Check the harness (Airbag Electronic Control Unit - power supply, Ground).

A. Disconnect the battery negative cable, turn the

ignition switch to OFF position and wait for 90
seconds. Pull down the connector from the airbag
control module.

B. Connect the battery negative cable and wait for at

least 2s .

C. Turn the ignition switch to ON (IG).

D. Measure the voltage between terminal No.30 of

harness connector IP15 and vehicle body ground
with a multimeter.

Standard Voltage: 11-14 V

E. Turn the ignition switch to OFF position .

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 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 48 49 50

IP15安全气囊控制模块线束连接器

NL09-2102b

F. Measure the resistance between terminal No.5 of harness connector IP15 and vehicle body ground with a
multimeter.

Standard Resistance: Less than 1 Ω

2

Check the harness connector.

A. Disconnect the battery negative cable and wait for at least 90s. Refer to 2.12.6.1 Battery Cable Disconnection

and Connection Procedures.

B. Check whether the clock spring connector is damaged, whether the retaining buckle is damaged.

Yes

No

Inspect the fuses, repair or replace the harness.

No

Yes

Replace the clock spring.

IP15airbag control module harness

connector

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3

Inspect the circuit between the airbag control module and driver airbag.

A. Disconnect the battery negative cable and wait for at least 90s. Refer to 2.12.6.1 Battery Cable Disconnection

and Connection Procedures.

B. Disconnect the clock spring harness connector form the driver airbag.

C. Disconnect harness connector from the airbag control module.

Note: Before measuring, please dismantle terminal No.1 of the airbag control module harness connector IP15 and
the short films of terminal No.2.Please install the short films before installing harness connector.

Note: Do not use a multimeter to measure the driver airbag, otherwise it might set off airbag explosion and cause
serious injuries.

D. Measure the resistance between terminals No.1 and No.2 of the airbag control module harness connector

IP15 and the body ground with a multimeter.

Standard Resistance: 10 kΩ or higher

E. Measure the resistance between terminal No.1 and No.2 of airbag control module harness connector IP15 and

relevant terminals of the airbag harness connector with a multimeter.

Standard Resistance: Less than 1 Ω

F. Measure the resistance between terminal No.1 and terminal No.2 of the airbag control module harness

connector IP15 with a multimeter.

Standard Resistance: 10 kΩ or higher

G. Connect the battery negative cable and wait for at least 2s.

H Turn the ignition switch to ON position.

I Measure the voltage between terminals No.1 and No.2 of the airbag control module harness connector IP15

and the body ground with a universal meter.

Standard Voltage: Less than 1 V

Confirm whether the measured value is accorded with the standard?

4

Inspect the harness between the clock spring and the airbag control module.

A. Disconnect the clock spring harness connector IP41.

B. Measure the resistance between terminal No.1 of harness connector IP41 and terminal No.1 of IP15 with a

universal meter. Measure the resistance between terminal No.2 of harness connector IP41 and terminal No.2
of IP15 with a multimeter (Check for open circuit).

Standard Resistance: Less than 1 Ω

C. Measure the resistance between terminal No.1 and No.2 of IP41 with a multimeter (inspection for short

circuit).

Standard Resistance: 10 kΩ or higher

D. Measure the resistance between terminals No.1&No.2 of harness connector IP41 and the body ground with a

multimeter (Inspect for short circuit to earth).

Standard Resistance: 10 kΩ or higher

E. Connect the battery negative cable and wait for 2s at least. Refer to 2.12.6.1 Battery Cable Disconnection and

No

Yes

Go to step 6

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