Changan CS35 Workshop Manual

CS35RM2H/3/1

www.nasicoelec.ir

Supplemental Restraint System

4.2 Supplemental Restraint System

2012 CS35

Table of Contents PAGE

4.2.1 supplemental Restraint System

Specification..................................................................................................................................... 4.2.1-1

Torque Specifications................................................................................................................ 4.2.1-1

Description and Operation ............................................................................................................... 4.2.1-2

System Overview...................................................................................................................... 4.2.1-2

Component Description ............................................................................................................ 4.2.1-3 www.nasicoelec.ir

Symptom Chart......................................................................................................................... 4.2.1-7

Abnormal Airbag Indicator Diagnosis ....................................................................................... 4.2.1-8

Airbag Indicator Always ON Diagnosis................................................................................... 4.2.1-11

DTC Diagnosis and Testing ........................................................................................................... 4.2.1-15

Airbag Control Module Terminal List....................................................................................... 4.2.1-15

Diagnostic Trouble Code (DTC) Type..................................................................................... 4.2.1-16

Diagnostic Trouble Code (DTC) List....................................................................................... 4.2.1-16

Data Stream List ..................................................................................................................... 4.2.1-19

DTC Diagnosis Procedure Index ............................................................................................ 4.2.1-22

DTC B0064, B0065, B0066, B0067........................................................................................ 4.2.1-24

DTC B0026, B0022, B0024, B0025........................................................................................ 4.2.1-28

DTC B1328, B1327 ................................................................................................................ 4.2.1-32

DTC B0017, B0016, B0018, B0019........................................................................................ 4.2.1-34

DTC B0057, B0058, B0059, B0060........................................................................................ 4.2.1-38

DTC B0671, B0673 ................................................................................................................ 4.2.1-42

DTC B1000, B1001 ................................................................................................................ 4.2.1-45

DTC B0041, B0040, B0045, B0046........................................................................................ 4.2.1-47

DTC B0028, B0029, B0030, B0032........................................................................................ 4.2.1-51

DTC B0049, B0048 ................................................................................................................ 4.2.1-54

DTC B0051, B0034, B0052 .................................................................................................... 4.2.1-59

Removal and Installation................................................................................................................ 4.2.1-61

Driver Airbag and Steering Wheel .......................................................................................... 4.2.1-61

Clock Spring ........................................................................................................................... 4.2.1-64

Side Airbag ............................................................................................................................. 4.2.1-65

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Passenger Airbag ...................................................................................................................4.2.1-66

Airbag Control Module ............................................................................................................4.2.1-69

Impact Sensor.........................................................................................................................4.2.1-71 www.nasicoelec.ir

CS35 2013.04

4.2.1-1

4.2.1 supplemental

Restraint System

Supplemental Restraint System 4.2.1-1

Specification

Torque Specifications

Description

Passenger airbag retaining bolt

Airbag control module retaining bolt

Airbag wiring harness ground bolt

Impact sensor retaining bolt

Nm

15

8

8

10 lb-ft

-

-

11

lb-in

-

71

71

89 www.nasicoelec.ir

CS35 2013.04

4.2.1-2 Supplemental Restraint System 4.2.1-2

Description and Operation

System Overview

WARNING: The vehicle is equipped with supplemental restraint system, and failure to follow the correct procedures will lead to the following: a. Unexpected airbag deployment. b. The supplemental restraint system does not function when it's needed.

buffering and absorbing collision energy under the damping action of airbag, and at the same time the seat belt pretensioner work, realizing the purpose of mitigating the injury to the passengers.

The supplemental restraint system is composed of the following components:

• Airbag indicator

• Airbag control module (SDM)

• Instrument assembly

WARNING: Observe the following guide• Driver side impact sensor lines strictly to avoid the situation above: a. Before the start of work, make sure if you are undergoing maintenance operawww.nasicoelec.ir

nance operations around the supplemental restraint system components or on the

• Passenger side impact sensor

• Driver airbag

• Passenger airbag

• Driver side airbag

• Passenger side airbag

• Driver side pretensioner seat belt circuits of them, you should shut down the

• Passenger side pretensioner seat belt supplemental restraint system.

The supplemental restraint system provides a

Supplemental restraint system (SRS AIRBAG) is secondary protection except for seat belts for the a safety device used in conjunction with seat crew. It is a passive safety system. The belts. The airbag can not replace the role of seat supplemental restraint system consists of multiple belts. Driver and passengers shall wear safety inflatable protection modules. They are distribbelts all the time and adjust to the most comfortuted in different locations on the vehicle, including able state according to the body conditions.

the steering wheel, instrument console and seats.

Each inflatable module has a explosion loop

CAUTION: The supplemental restraint system can not replace the role of seat belts.

Failure to wear a seat belt may cause serious personal injury when airbag deployment. Changan Auto reminds you of wearing seat belts when traveling by car.

Only when your seat belts are fastened, the supplemental restraint system can provide a better assistant protection for the crew when crashing.

which is controlled by the airbag control module.

The airbag control module implements a continuous diagnostic monitoring to the electrical components of the supplemental restraint system. If the system detects a failure, the airbag control module will set a fault diagnosis code and turn on the airbag indicator to remind the driver. The airbag control module will judge the severity grade of the collision. If the signal value is greater than the

The supplemental restraint system is designed for protecting the driver and front passengers when vehicles endure severe frontal collision. In case of collision, the sensor sends a collision signal to the airbag controller which can judge if the minimum requirement of the airbag inflation is met according to the degree of collision and then issues the ignition command to inflate the airbag, quickly forming a soft air bag filled with air between passengers and interior structures (such as steering wheel, instrument panel and trim plates, etc.), memory settings, the airbag control module will give off a ignition instruction to spread the corresponding inflatable modules of the supplemental restraint system.

After confirming the collision signal, the airbag control module (SDM) will send a "collision unlock and fuel cut-off" signal to BCM. After receiving the signal, BCM and ECM will execute the unlock and fuel cut-off function separately.

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4.2.1-3 Supplemental Restraint System 4.2.1-3 supplemental restraint system. When the crash

Component Description

occurs, the airbag control module will compare the detected collision signal with the value in the Airbag Indicator memorizer, when the signal generated exceeds

The airbag indicator is located within the instruthe value in the storage, the airbag control modment assembly. It is used for reminding the driver ule will give every ignition circuit a ignition order of the fault of the supplemental restraint system

(current signal) to deploy the airbag. When the and test whether the airbag control module is airbag is deploying, the airbag control module will communicating with instrument panel. When turnrecord the situation of the supplemental restraint ing the ignition switch to position "ON", make sure system and turn on the airbag indicator in the the indicator is on. 4 seconds later, the indicator is instrument circuit. After the car starts, the airbag off. If the indicator is still on or flashing at this control module will execute continuous diagnostic time, the fault existing in the circuit of the supplemental restraint system must be tested.

When there is no fault in the circuit of the www.nasicoelec.ir

supplemental restraint system, it may cause the airbag can not be deployed, or monitoring to the electrical components and wiring of the supplemental restraint system. If a failure is detected, the airbag control module will store a fault diagnosis code and turn on the airbag indicator to inform the driver that there is a fault.

Side Impact Sensor deploy the airbag when the collision does not reach the severity setting degree. If the airbag indicator is on, please go to the

Changan Automobile authorized service stations for maintenance as soon as possible; the airbag indicator won't go off before the completion of fault repair.

The side impact sensor is used to acquire the lateral acceleration signal in case of an impact and transmit the signal to the airbag control module to judge whether the airbag should be ignited.

Driver Airbag, Passenger Airbag

Airbag Control Module (SDM)

WARNING: When transporting the undeployed airbag module: a. Shall not carry the handling wires or connectors of the airbag module. b. Ensure that the airbag opening is not facing you or other people.

WARNING: The airbag control module

(SDM) is equipped with the backup power supply, which makes the airbag deploy successfully even in case of the battery voltage loss during the crash.

WARNING: Disconnect the battery negative cable for more than 60 seconds before the operation on the airbag.

WARNING: In order to prevent the unexpected airbag deployment causing personal injury, do not treat the undeployed airbag module as conventional plant waste. Use the deployment program to scrap the undeployed airbag module safely. If the sealed container in the scrap process is damaged, some materials within the undeployed module may cause serious illness or personal injury.

The airbag control module (SDM) is a microprocessor which controls the center of the

The driver airbag and passenger airbag consist of a shell, inflatable airbags, an ignition device for igniting and the gas generating agent. When occurring a face collision and the impact of the collision is large enough, the airbag control module will give ignition loop an ignition order and deploy the airbag. The gas generated in the reaction makes the airbag expand rapidly. The gas generated from this action inflates the airbag quickly. Once the airbag is filled with gas, it will release the gas through the release holes of the airbag. There is a short circuit slice in the wiring harness connector terminal of the airbag control module (driver airbag, passenger airbag deployment loop). When the connector is disconnected, the short circuit bar will connect the airbag inflation module to deploy the loop, in order to prevent an unexpected airbag deployment during the maintenance.

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4.2.1-4 Supplemental Restraint System 4.2.1-4 ness, please follow the corresponding test and circuit repair procedures in this manual.

Side Airbags at Driver's Side and Passenger's Side

The side airbags at driver's side and passenger's Driver Side Pretensioner Seat Belt, side are located on the back of the driver seat and Passenger Side Pretensioner Seat Belt passenger seat respectively. The SRS curtain air-

The driver side pretensioner seat belt and pasbag module consists of the airbag, ignition device senger side pretensioner seat belt each consists and gas propellant. The igniter is a part of the of a housing, an ignition device and gas generant.

deployment loop of the SRS curtain airbag module. When the vehicle encounters a side impact with adequate force, the side impact sensor will detect this impact and send a signal to the airbag control module. The airbag control module will compare the signal from the side impact sensor with the settings in the memory. When the generwww.nasicoelec.ir

side is required to deploy and the curtain airbag at passenger's side to ignite. The airbag control

(current signal) and the current will flow through the igniter to ignite the gas propellant, thus producing a great deal of gas quickly. The gas from this action will extend to the seat belt retractor module, quickly retracting the belt. A short-circuit slice is installed to the wiring harness connector terminal of the airbag control module (deployment loop of each seat belt pretensioner force limiter).

The short-circuit slice can short the deployment module constantly monitors the deployment loop trol module will issue the ignition command loop of the pretensioner force limiter to prevent for malfunction and will illuminate the airbag indiquate frontal or side impact force, the airbag conaccidental deployment of the limiter during the cator lamp once a malfunction occurs. There is a deployment loop. In case of collision with adeservicing.

short circuit slice in the wiring harness connector

The igniter is a part of the seat belt pretensioner terminal of the airbag control module (each curtain airbag deployment loop). A short-circuit slice can short the deployment loop of the curtain airbag module to prevent accidental deployment during the servicing.

Clock Spring

WARNING: Wrong installation of the clock spring assembly could lead damage to the internal spiral coil and the coil fault causing the airbag module failure and personal injury.

The airbag clock spring is in the steering column and on the bottom of the steering wheel. The clock spring can keep constant electric contact between the driver deployment loop and the driver airbag when the steering wheel rotates.

Airbag Wiring Harness System

The airbag system wiring harness connects the control unit, inflatable module, deployment loop and data circuit via waterproof connectors. The deployment loop wiring harness of the supplemental restraint system is yellow. To service the supplemental restraint system wiring har-

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4.2.1-5

Location View


1

2

3

4

5 www.nasicoelec.ir

10

6

8 7

9

9

4.2.1-5

A4201001

Item

3

4

1

2

5

Description

Driver airbag module (DAB)

Airbag wiring harness assembly

Passenger airbag module (PAB)

Hexagon flange bolt

Tapping screw

Qty.

1

2

1

1

3

Item

8

9

6

7

10

Description

Hexagon flange bolt

Airbag controller

Front seat side airbag (right)

Side impact sensor

Front seat side airbag (left)

Qty.

1

2

4

1

1

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Symptom Diagnosis and Testing

General Equipment caused by vibration, it is suggested that man can vibrate the possible failed position with fingers and inspect whether there is any malfunction.

Digital Multimeter • Shake the connector in the vertical and horizontal directions gently.

Changan Auto Special Diagnostic Tool

• Shake the wiring harnesses in the vertical and horizontal directions gently.

Inspection and Verification

WARNING: When storing the inactivated airbag module, make sure that the airbag opening is not towards to the surface of

4.

If an obvious cause for an observed or reported concern is found, correct the cause before proceeding to the next step.

the control module. Do not allow the airbag opening face down. Do not place any load on the airbag module. There shall be www.nasicoelec.ir

WARNING: Do not put the inactivated airbag module in the water or contact other

5.

If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.

liquids.

WARNING: Do not put the inactivated airbag module in the place where is near fire or in hot environment. Failure to follow these instructions may result in personal injury.

1.

Verify the customer concern.

2.

Visually inspect for obvious signs of mechanical and electrical damage, whether there are obvious signs of collision or not.

Visual Inspection Chart

Mechanical

• Steering wheel

•

Instrument panel assembly

• Circuit

Electric

• Driver airbag


• Side airbag

• Clock spring

• Instrument

•

SDM

3.

Inspect the visible airbag system cables.

The wiring harness connectors and fulcrum of vibration are the main positions, which should be thoroughly inspected, and if the malfunction is

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Symptom Chart

If there is a symptom but no diagnosis trouble code (DTC) is stored in control module and can not confirm symptom reasons in basic inspect, it is necessary to diagnosis and eliminate the symptoms in the following chart.

Symptom Possible Sources Solutions

The airbag indicator is not on

• Fuse

• Circuit fault

• Instrument

Refer to: When Ignition

Switch Is ON, Airbag Indicator

Not ON (4.3.2 Instrument,

Symptom Diagnosis and Testing).

• SDM circuit

• SDM control module www.nasicoelec.ir

The airbag indicator blinks and has been on

• Fuse and circuit

• Collision occurred record

• Non-standard operation is performed

Refer to: Abnormal Airbag

Indicator Diagnosis (4.2.1

Supplemental Restraint System, Symptom Diagnosis and

Testing).

• The SDM control module records the times of collisions beyond the regulation

•

SDM control module

• Fuse and circuit

• Instrument

The airbag indicator is always on

Refer to: Airbag Indicator

Always ON Diagnosis (4.2.1

Supplemental Restraint System, Symptom Diagnosis and

Testing).

• SDM control module

• Battery

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Abnormal Airbag Indicator Diagnosis

WARNING: Disconnect the battery negative cable for 60 seconds before the operation on the airbag.

Details/Results/Solutions Test Conditions

1. General inspection

A.Inspect the wiring harness connectors of the clock spring, SDM control module and Instrument for damage, poor contact, aging and loose.

Is it normal?

Y

2. Inspect the state of Instrument airbag indicator

Go to step 2.

N www.nasicoelec.ir

A.Turn the ignition switch to the position "ON", execute the self-test of the airbag indicator.

Is the airbag indicator always on, after it blinks?

Y

Go to step 3.

N

Repair when the airbag indicator is not on.

Refer to: When Ignition Switch Is ON, Airbag Indicator Is Not ON (4.3.2 Instrument,


Repair when the airbag indicator is always on.

Refer to: Airbag Indicator Always ON

Diagnosis (4.2.1 Supplemental Restraint

System, Symptom Diagnosis and

Testing).

3. Clear the historical DTC of the supplemental restraint system

A.Connect the Changan Automobile special diagnostic tool.

B.Turn the ignition switch to "ON" and read and clear the historical DTC of the supplemental restraint system.

C.Start the motor and run it for 5 min. Meanwhile turn the steering wheel all the way to the left and right several times.

Is there still the phenomenon, that the airbag indicator blinks and has been on?

Y

Confirm the maintenance is finished.

N

Go to step 4.

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Test Conditions Details/Results/Solutions

4. Read the DTC of the supplemental restraint system


B.Turn the ignition switch to "ON" and read the DTC of the supplemental restraint system on the special diagnosis tool.

Are there any DTCs of the supplemental restraint system?

Y

Repair according to the instruction of DTCs.

N

5. Inspect the airbag control module power supply circuit

Refer to: DTC Diagnosis (4.2.1

Supplemental Restraint System, DTC

Diagnosis and Testing).

www.nasicoelec.ir

A.Turn the ignition switch to position "LOCK" and disconnect the battery negative cable.

B.Disconnect the wiring harness connector P26 of the airbag control module.

C.Connect the battery negative cable and turn the ignition switch to "ON" position.

D.Measure the voltage of the terminal 1 of the airbag control module wiring harness connector P26.

Standard Voltage Value: 11 ~ 14 V

16

32

1

17

A4201002

P26

Is the voltage normal ？

Y

Go to step 6.

N

Inspect and repair the open circuit fault between the terminal 1 of the airbag control module wiring harness connector P26 and the ground point G105.

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6. Inspect the ground circuit of the airbag control module

16

32

P26

1

17



C.Measure the resistance between the terminal 16 of the airbag control module wiring harness connector

P26 and the ground point wiring harness.

Standard Resistance Value: less than 5 Ω

Is the resistance value normal?

Y

A4201003

Repair the ground circuit of the airbag control module.

7. Replace the airbag control module


B.Replace the airbag control module.

Refer to: Airbag Control Module (4.2.1

Supplemental Restraint System, Removal and Installation).

Verify the system is normal.

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Airbag Indicator Always ON Diagnosis


Test Conditions

1. General inspection

Details/Results/Solutions

A.Inspect the wiring harness connectors of the clock spring, SDM control module and Instrument for damage, poor contact, aging and loose.

Is it normal?

Y

2. Inspect the battery voltage

A.Turn the ignition switch to "ON" and inspect the voltage at the positive cable of the battery with a multimeter.


B.Start the engine and keep the engine speed at

2,000 rpm. Inspect the voltage at the positive cable of the battery with a multimeter.


Is the battery voltage normal?

Y

Go to step 3.

N

Inspect and repair the battery performance.

Refer to: Battery Charing Voltage Too Low or Too High (3.1.10 Charging System,


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3. Read the DTC of the supplemental restraint system


B.Turn the ignition switch to "ON" and read the DTC of the supplemental restraint system on the special diagnosis tool.

Are there any DTC of the supplemental restraint system?

Y


N

Refer to: DTC Diagnosis (4.2.1

Supplemental Restraint System, DTC www.nasicoelec.ir

4. Inspect the circuit between the airbag control module and the Instrument


17

1 5

P11

32

16

B.Disconnect the Instrument wiring harness connector

P11.

C.Disconnect the wiring harness connector P26 of the airbag control module.

D.Measure the resistance value between the terminal

5 of the Instrument wiring harness connector P11 and the ground point.

Standard Resistance Value: 10 M Ω or more

A4201050

17

1

16

32

5

P26

P11

32

16

1

17

E.Measure the resistance value between the terminal

5 of the Instrument wiring harness connector P11 and the terminal 17 of the ABS control module wiring harness connector P26.



Y

Go to step 5.

N

Inspect and repair the short or open circuit fault between the airbag control module and the

Instrument.

A4201051

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Test Conditions

13


5. Inspect the Instrument assembly - power supply and ground

A.Turn the ignition switch to the "LOCK" position and disconnect the battery negative wiring harness.


P11.

C.Turn the ignition switch to the "ON" position,with a multimeter inspect the power supply circuit of the terminal 14 and 15 of the Instrument wiring harness connector P11.

17 32


1 14 15 16

D.Turn the ignition switch to "LOCK" position, with a

A2305007

P11 multimeter inspect the ground circuit of the terminal

13, 16 and 22 of the Instrument wiring harness www.nasicoelec.ir

Ω

Y

Go to step 6.

N

Repair the circuit.

17 22 32

1 16

P11

A2305008

6. Replace the Instrument


B.Replace the Instrument.

Refer to: Instrument (4.3.2 Instrument,

Removal and Installation).

Is the system normal?

Y


N

Go to step 7.

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16 1


C.Turn the ignition switch to "ON" position, and connect the battery negative cable.

D.Measure the voltage of the terminal 1 of the airbag control module wiring harness connector P26.


32 17

A4201002

P26 Is the voltage normal ？

Y www.nasicoelec.ir

ule.

8. Inspect the ground circuit of the airbag control module

16

32

A4201003

P26

1

17

A.Turn the ignition switch to "LOCK" position and disconnect the battery negative cable.


C.Measure the resistance value between the terminal

16 of the airbag control module wiring harness connector P26 and the ground.



Y

Go to step 9.

N

Inspect and repair the open circuit fault between the terminal 16 of the airbag control module wiring harness connector P26 and the ground point G105.







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4.2.1-15 Supplemental Restraint System

DTC Diagnosis and Testing

Airbag Control Module Terminal List

4.2.1-15

1

17

16

32

P26 www.nasicoelec.ir

A4201006

Terminal No.

P26-1

P26-2

P26-3

P26-4

P26-5

P26-6

P26-7

P26-8

P26-9

P26-10

P26-11

P26-12

P26-13

P26-14

P26-15

P26-16

P26-17

P26-18

P26-19

Connection

0.5 OG

-

0.5 LG

0.5 LG/BK

0.5 GN/PK

0.5 GN/VT

0.5 GY/WH

0.5 GY/GN

0.5 VT

0.5 BU

0.5 YE/BK

0.5 YE/RD

0.5 GN/BN

0.5 GN/BU

-

0.5 BK

0.3 BN

0.5 RD

0.5 RD

Terminal Description

Ignition switch power supply (IG1)

-

Driver airbag control power

Driver airbag ground signal

Passenger airbag ground signal

Passenger airbag control power

Driver side seat belt pretensioner power signal

Driver side seat belt pretensioner ground signal

Passenger side seat belt pretensioner ground signal

Passenger side seat belt pretensioner power signal

Driver side airbag power signal

Driver side airbag ground signal

Passenger side airbag ground signal

Passenger side airbag power signal

-

G105 ground line

Fault alarm indication signal

Driver side impact sensor power signal

Driver side impact sensor ground signal

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Terminal No.

Connection Terminal Description

P26-20

P26-21

P26-22

P26-23

P26-24

P26-25

P26-26

P26-27

-

-

0.5 OG/GN

-

-

-

0.5 OG/BK

0.5 BK

-

-

DLC

-

-

-

Oil cut-off collision signal

Passenger side impact sensor power signal

P26-28

P26-29

P26-30

P26-31

0.5 YE

-

-

-

Passenger side impact sensor ground signal

-

-

-

P26-32 -

Diagnostic Trouble Code (DTC) Type

Fault type

Type 1

Type 2

Definition

Type 1 indicates power supply fault. Diagnostic path of power supply fault: carry out the selftest with the ignition in the "ON" position for at most 6 times. If it doesn't pass the self-test, the airbag control module illuminates the indicator.

Type 2 indicates component installation fault. An airbag component fault and a circuit connection fault are detected. The indicator blinks for many times and then stays permanently illuminated. In this fault condition, the intact route way could still be ignited and the system will record the relevant faults.

Type 3 indicates an internal fault of the controller. In the case of an internal fault of the airbag control module, the airbag indicator will be on constantly.

Type 3

WARNING: Internal malfunction of the controller is not repairable by ordinary service personnel and the only solution in this case is to replace SDM.

Diagnostic Trouble Code (DTC) List

B1000

B1001

Code

B0077

B0079

B0080

Code Fault Description

•

ECU internal fault

• Configuration fault

• Driver side peripheral acceleration sensor performance fault

•

Wrong connection or initialization fault of the driver side peripheral acceleration sensor

• Defect or signal reliability fault of the driver side peripheral acceleration sensor

Fault type

3

2

2

2

2

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B0078

B0081

Code Code Fault Description

• Passenger side peripheral acceleration sensor performance fault

• Wrong connection or initialization fault of the passenger side peripheral acceleration sensor

Fault type

2

2

B0082

B0019

B0065

• Defect or signal reliability fault of the passenger side peripheral acceleration sensor

•

•

Passenger airbag short circuit to power supply

Driver seat belt pretensioner open circuit

2

B0026

B0022

• Driver airbag open circuit

•

Driver airbag resistance too low

B0024

B0018

• Driver airbag short circuit to ground or ground

• Passenger airbag short circuit to ground or ground

2

B0025

B0017

B0016

• Driver airbag short circuit to power supply

•

•

Passenger airbag open circuit

Passenger airbag resistance too low

2

2

2

2

2

2

2

2

B0064 • Driver seat belt pretensioner 2

B0066

B0067

B0058

B0057

B0059

B0060

B0041

B0040

B0045

B0046

B0029

B0028

B0030

B0032

B1022

B1023

• Driver seat belt pretensioner short circuit to ground or bonding

• Driver seat belt pretensioner short circuit to power

• Passenger seat belt pretensioner open circuit

• Passenger seat belt pretensioner resistance too low

•

Passenger seat belt pretensioner short circuit to ground or bonding

• Passenger seat belt pretensioner short circuit to power


• Driver airbag resistance too low



• Passenger curtain airbag open circuit

• Passenger airbag resistance too low


• Passenger airbag short circuit to power

•

Driver air curtain open circuit (reserved)

• Driver air curtain resistance too low (reserved)

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

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B1024

Code Code Fault Description

• Driver air curtain short circuit to ground or ground

(reserved)

• Driver air curtain short circuit to power (reserved)

Fault type

2

B1025

B1027

B1028

• Passenger air curtain open circuit (reserved)

• Passenger air curtain resistance too low

B1029

B0051

B0034

• Passenger air curtain short circuit to ground or ground

(reserved)

•

•

Front airbag and front seat belt pretensioner ignited

Side airbag ignited

2

B102A • Passenger air curtain short circuit to power (reserved) 2

B1328

B1327

B0671

B0673

• Too high power supply voltage

• Too low power supply voltage

•

•

System fault lamp short circuit to ground or open circuit

System fault lamp short circuit to power supply

1

1

2

2

3

3

3

3

2

B0052

B0049

B0048

• Airbag controller reaches the max limit and can't be used any more.

• Impact output short circuit to power supply

•

Impact output short circuit to ground or open circuit

3

2

2

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4.2.1-19

Data Stream List

Read ECU Setting


Data Flow Item

Configuration - driver front airbag existence

Configuration - passenger front airbag existence

Configuration - driver seat belt pretensioner existence

Configuration - passenger seat belt pretensioner existence

Configuration - driver curtain airbag existence

Configuration - passenger curtain airbag existence

4.2.1-19

Ignition Switch ON

Yes

Yes

Yes

Yes

Yes

Yes

Configuration - fault lamp

Configuration - collision output

Actual configuration - driver front airbag existence

Actual configuration - passenger front airbag existence

Actual configuration - driver seat belt pretentioner existence

Actual configuration - passenger seat belt pretentioner existence

Actual configuration - driver side airbag existence

Actual configuration - passenger curtain airbag existence

Actual configuration - driver side peripheral acceleration sensor existence

Actual configuration - passenger side peripheral acceleration sensor existence

Actual configuration - fault lamp

Actual configuration - collision output

Wrong configuration - driver front airbag existence

Wrong configuration - passenger front airbag existence

Wrong configuration - driver seat belt pretentioner existence

Wrong configuration - passenger seat belt pretentioner existence

Wrong configuration - driver curtain airbag existence

Wrong configuration - passenger curtain airbag existence

Wrong configuration - driver side peripheral acceleration sensor existence

Wrong configuration - passenger side peripheral acceleration sensor existence

Wrong configuration - fault lamp

Wrong configuration - collision output

No

No

No

No

Yes

Yes

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

CS35 2013.04


Read Controller Information

4.2.1-20

Data Flow Item Ignition Switch "ON"

User part No.

Number SW (Number BB)

Current fault makes the fault lamp on

Historical fault makes the fault lamp on

003414070-W01

CNU

No

No

Customer production mode makes the fault lamp on

Ignited airbag makes the fault lamp on

No

No

Diagnostic communication makes the fault lamp on Yes

Algorithm failure makes the fault lamp on

Ignition circuit failure makes the fault lamp on

Accident counter

Diagnostic tool is used to close the passenger front airbag

No

No

No

Manually close the passenger front airbag

Bosch development mode

Customer development mode

Customer production mode

Customer after-sales mode

Pre-ignited mode

Post-ignited mode

Yes

Yes

No

No

No

No

No

CS35 2013.04

4.2.1-21 4.2.1-21 Supplemental Restraint System

Read Controller Product Information

Data Flow Item Ignition Switch ON

Bosch production date

EEPROM version

Bosch part number code

Product serial number

Customer project code

Current operating time count

On-off count

June 28, 2012

132900

KJ095

80001113

02D9

421512

690

Bosch software number 01 www.nasicoelec.ir

CS35 2013.04

4.2.1-22 4.2.1-22 Supplemental Restraint System

DTC Diagnosis Procedure Index

Description Diagnosis Procedures

Fault

Code

B0065 Refer to: DTC B0064, B0065,

B0066, B0067

B0064

B0066

B0067

• Driver seat belt pretensioner open circuit

• Driver seat belt pretensioner

• Driver seat belt pretensioner short circuit to ground or ground

• Driver seat belt pretensioner short circuit to power supply

B0026

B0022

B0024

B0025

B1327





•

Too low power supply voltage

Refer to: DTC B0026, B0022,

B0024, B0025 www.nasicoelec.ir

B1328 • Too high power supply voltage Refer to: DTC B1328, B1327

B0017 • Passenger airbag open circuit Refer to: DTC B0016, B0017,

B0018, B0019

B0016 • Passenger airbag resistance too low

B0018

B0019

B0058

B0057

B0059

B0060

B0671

B0673

B1000


• Passenger airbag short circuit to power supply



• Passenger seat belt pretensioner short circuit to ground or ground

• Passenger seat belt pretensioner short circuit to power supply

• System fault lamp short circuit to ground or open circuit

• System fault lamp short circuit to power supply

• ECU internal fault

• Configuration fault

Refer to: DTC B0671, B0673


B1001

Refer to: DTC B0057, B0058,

B0059, B0060

CS35 2013.04


Fault

Code

Description

B0077

B0079

B0080

B0078

• Passenger side peripheral acceleration sensor performance fault

B0081

B0082

•

Wrong connection or initialization fault of the pas-

• senger side peripheral acceleration sensor side peripheral acceleration sensor

B0041

B0040

B0045

B0046



• Driver airbag short circuit to ground or bonding


B0029

B0028

• Driver side peripheral acceleration sensor performance fault

• Wrong connection or initialization fault of the driver side peripheral acceleration sensor

• Defect or signal reliability fault of the driver side peripheral acceleration sensor

B0030

B0032

B0049

B0048

B0051

B0034

B0052

• Passenger airbag open circuit





• Impact output short circuit to ground or open circuit

• Front airbag and front seat belt pretensioner ignited

•

Side airbag ignited

• The airbag controller reaches the max limit and can't be used any more

4.2.1-23

Diagnosis Procedures

Replace the sensor.

Refer to: Impact Sensor (4.2.1


Refer to: DTC B0041, B0040,

B0045, B0046

Refer to: DTC B0028, B0029,

B0030, B0032


Refer to: DTC B0051, B0034,

B0052

CS35 2013.04


DTC B0064, B0065, B0066, B0067


1. Fault Code Description

Fault

Code

Description Definition

B0065

• Driver seat belt pretensioner open circuit

• The system detects the driver seat belt pretensioner open circuit

B0064

B0066

B0067

• Driver seat belt pretensioner

• Driver seat belt pretensioner short circuit to ground or ground

• Driver seat belt pretensioner short circuit to power supply

2. Possible Sources

• The system detects the driver seat belt pretensioner

• The system detects the driver seat belt pretensioner short circuit to ground or bonding

• The system detects the driver seat belt pretensioner short circuit to power supply

Fault

Code

B0065

B0064

B0066

B0067

Test Tactics

Hardware circuit inspection

Equippment Conditions (Control Tactics)

Carry out the self-test. A hardware circuit fault is detected.

Fault Component

• Wiring harness

• Driver side pretensioner seat belt

• Airbag control module

CS35 2013.04


3. Diagnosis Procedures


1. Inspect the trouble code

A.Connect the Changan special diagnostic tool and diagnose supplemental restraint system.

B.Read and clear the historical DTC.

C.Frequently turn on the ignition switch to perform the airbag self-test.

D.Read DTC again.

Are there any other DTCs except for B0064, B0065,

B0066 and B0067?

Y


www.nasicoelec.ir

N

Go to step 2.

2. Inspect the driver seat belt pretensioner wiring harness connector

A.Inspect the driver seat belt pretensioner wiring harness connector for correct connection.

Is the connection of the wiring harness connector normal?

Y

Go to step 3.

N

Reconnect the wiring harness connector correctly.

3. Inspect the airbag control module wiring harness connector

A.Turn the ignition switch to the position "LOCK" and disconnect the battery negative wiring harness for at least 60 s.

B.Inspect the wiring harness connector of the airbag control module and clean it.


Y


N

Go to step 4.

CS35 2013.04



4. Inspect the driver seat belt pretensioner circuit

A.Turn the ignition switch to the position "LOCK" and disconnect the battery negative wiring harness for at least 60 s.

1 2

S11


C.Disconnect the driver seat belt pretensioner wiring harness connector S11.

D.Measure the resistance value (check for open

16 8 7 1 circuit) between the terminal 7 of the wiring harness

32 17 connector P26 and the terminal 1 of the wiring

A4201045

P26 harness connector S11, and the resistance between the terminal 8 of wiring harness connector www.nasicoelec.ir

circuit) between the terminal 7 and the terminal 8 of the wiring harness connector P26.


F.Measure the resistance value (check the vehicle body ground for short circuit) between the terminal

7 of the wiring harness connector P26 and the reliable ground, and the resistance between the terminal 8 of wiring harness connector P26 and the reliable ground.


G.Disconnect the battery negative cable and wait for a moment.

H.Turn the ignition switch to "ON" position.

I.Measure the voltage (check for short circuit to power) between the terminal 7 of the wiring harness connector P26 and the reliable ground, and the voltage between the terminal 8 of wiring harness connector P26 and the reliable ground.

Standard Voltage Value: 0 V

Is the circuit normal ？

Y

Go to step 5.

N

Replace the airbag wiring harness with fault.

CS35 2013.04



5. Replace the driver seat belt pretensioner

A.Turn the ignition switch to the position "LOCK" and disconnect the battery negative cable for at least 60 s.

B.Replace the driver seat belt pretensioner.

Refer to: Front Seat Belt (5.1.4 Seat Belt

System, Removal and Installation).

C.Disconnect the battery negative cable and wait for a moment.

D.Turn the ignition switch to "ON" position.

E.Connect the diagnostic tool and clear the historical

DTCs.

F.Read the DTC again.

www.nasicoelec.ir

N

Replace the airbag control module.


supplemental Restraint System, Removal and Installation).


CS35 2013.04


DTC B0026, B0022, B0024, B0025

WARNING: Disconnect the battery negative cable for more than 60 s before the operation on the airbag to ensure the safety.


Fault Code

B0026

Description


Definition

• The system detects the driver airbag open circuit

B0022


• The system detects the driver airbag resistance is too low

B0024

B0025

• Driver airbag short circuit to

• ground or bonding

Driver airbag short circuit to power supply


• The system detects the driver curtain airbag short circuit to ground or ground

• The system detects the driver airbag short circuit to power supply

Fault

Code

B0026

B0022

B0024

B0025

Test Tactics


Equipment Conditions (Control

Tactics)

Hardware circuit fault detected

Fault Component

• Wiring harness

• Clock spring

• Driver airbag



Test Conditions



A.Connect the Changan special diagnostic tool and diagnose the supplemental restraint system.



D.Read the DTC again.


B0024 and B0025?

Y


Refer to: DTC Diagnosis Procedure Index

(4.2.1 Supplemental Restraint System,

DTC Diagnosis and Testing).

N

Go to step 2.

CS35 2013.04



2. Inspect the wiring harness connector of the clock spring


B.Inspect the wiring harness connector of the clock spring and clean it.


Y


N

Go to step 3.

disconnect the battery negative cable for at least 60 s.

B.Disconnect the clock spring wiring harness as well as the connection between the clock spring and the driver airbag.

C.Inspect the exterior of the clock spring.

Deformation, breakage and melting traces are not allowed.

D.Inspect the clock spring resistance.


Is the resistance value of the clock spring normal?

Y

Go to step 4.

N

Replace the clock spring.

Refer to: Clock Spring (4.2.1


4. Inspect the wiring harness connector of the airbag control module




Y


N

Go to step 5.

CS35 2013.04



5. Inspect the circuit between the airbag control module and the clock spring

A.Turn the ignition switch to position "LOCK" and disconnect the battery negative cable for at least 60 s.

19 16 13 10 7 4 1


2 C.Disconnect the clock spring wiring harness connector P10.

21 18 15 12 9 6 3

P12


4 of the wiring harness connector P26 and the terminal 2 of the clock spring wiring harness

16 4 3 1 connector P12, and the resistance between the

32

A4201008

P26

17 terminal 3 of the wiring harness connector P26 and the terminal 1 of P12, and check for open circuit.

www.nasicoelec.ir



4 of the wiring harness connector P26 and the reliable ground, and the resistance between the terminal 3 of wiring harness P26 and the reliable ground.




I.Measure the voltage (check for short circuit to power supply) between the terminal 4 of the wiring harness connector P26 and the reliable ground, and the voltage between the terminal 3 of wiring harness connector P26 and the reliable ground.

WARNING: Do not measure the resistance value of the airbag inflation module with a multimeter. A special diagnostic tool shall be used for malfunction detection.



Y

Go to step 6.

N

Replace the wiring harness.

CS35 2013.04



6. Replace the driver airbag


B.Replace the driver airbag.

Refer to: Driver Airbag and Steering

Wheel (4.2.1 Supplemental Restraint System, Removal and Installation).


Y


The system is normal.

N www.nasicoelec.ir






CS35 2013.04


DTC B1328, B1327

WARNING: Disconnect the battery negative cable for more than 60 seconds before the operation on the airbag to ensure the safety.


Fault

Code


B1328

B1327

•

Too high power supply voltage

• Too low power supply voltage

• Carry out the self-test for six times. The power supply voltage is greater than

17.25 V.

• Carry out the self-test for six times. The power supply voltage is less than 8.25 V.

Fault

Code

B1328

B1327

Test Tactics



Test Conditions



Tactics)


Fault Component

• Wiring harness

• Charging system






Are there any other DTCs except for the B1328 and

B1327?

Y





N

Go to step 2.

CS35 2013.04


Test Conditions

2. Inspect the battery voltage


4.2.1-33

A.Turn the ignition switch to position "ON", inspect the battery voltage with the multimeter.


B.Start the engine, inspect the battery voltage with the multimeter.


Is the battery voltage normal?

Y

Go to step 3.

Refer to: Battery Undercharge Diagnosis,

Battery Overcharge Diagnosis (3.1.10

Charging System, Symptom Diagnosis and Testing).





Y


N

Go to step 4.



B.Inspect the airbag control module power supply wiring harness. Replace the airbag wiring harness with fault.


CS35 2013.04


DTC B0017, B0016, B0018, B0019



Fault Code

B0017

Description


Definition

• The system detects the passenger airbag open circuit

B0016


• The system detects the passenger airbag resistance less than 1.1 Ω

B0018

B0019

• Passenger airbag short cir-

• cuit to ground or ground

Passenger airbag short circuit to power supply


• The system detects the passenger airbag short circuit to ground or ground

• The system detects the passenger airbag short circuit to power supply

Fault

Code

B0017

B0016

B0018

B0019

Test Tactics



Tactics)


Fault Component

• Wiring harness




Test Conditions








B0018 and B0019?

Y





N

Go to step 2.

CS35 2013.04



2. Inspect the wiring harness connector of passenger airbag


B.Inspect the wiring harness connector of the passenger airbag and clean it.


Y


N

Go to step 3.




Y


N

Go to step 4.

CS35 2013.04



4. Inspect the circuit between the airbag control module and the passenger airbag


2 1


C.Disconnect the passenger airbag wiring harness connector P19.

P19

16 6 5 1


6 of the wiring harness connector P26 and the terminal 1 of the wiring harness connector P19, and the resistance between the terminal 5 of P26 and

32

A4201009

P26

17 the terminal 2 of P19, and check for open circuit.

Standard Resistance Value: less than 1 Ω www.nasicoelec.ir







I.Measure the voltage (check for short circuit to power) between the terminal 6 of the wiring harness connector P26 and the reliable ground, and the voltage between the terminal 5 of wiring harness connector P26 and the reliable ground.




Y

Go to step 5.

N


CS35 2013.04



5. Replace the passenger airbag


B.Replace the passenger airbag.

Refer to: Passenger Airbag (4.2.1



Y


The system is normal.

N www.nasicoelec.ir






CS35 2013.04


DTC B0057, B0058, B0059, B0060



Fault Code

B0058

Description


Definition

• The system detects the passenger seat belt pretensioner open circuit

B0057


• The system detects the passenger seat belt pretensioner resistance less than 1.1 Ω .

B0059

B0060

• Passenger seat belt preten-

• sioner short circuit to ground or

Passenger seat belt pretensioner short circuit to power


• The system detects the passenger seat belt pre-

• The system detects the passenger seat belt pretensioner short circuit to power supply

Fault

Code

B0058

B0057

B0059

B0060

Test Tactics



Tactics)

Fault Component


• Wiring harness

• Pretensioner seat belt at passenger's side


CS35 2013.04







C.Frequently turn on the ignition switch to perform the airbag self-test.

D.Read the DTC again


B0059 and B0060?

Y


www.nasicoelec.ir

N

Go to step 2.

2. Inspect the passenger seat belt pretensioner wiring harness connector

A.Inspect the passenger seat belt pretensioner wiring harness connector for correct connection.

Is the connection of the wiring harness connector normal?

Y

Go to step 3.

N

Reconnect the wiring harness connector correctly.





Y


N

Go to step 4.

CS35 2013.04



4. Inspect the circuit between the airbag control module and the passenger seat belt pretensioner


1 2


C.Disconnect the passenger seat belt pretensioner wiring harness connector S08.

S08

16 10 9 1


9 of the wiring harness connector P26 and the terminal 2 of the wiring harness connector S08, and the resistance between the terminal 10 of wiring

32

A4201046

P26

17 harness connector P26 and the terminal 1 of S08, and check for open circuit.

www.nasicoelec.ir







I.Measure the voltage (check for short circuit to power supply) between the terminal 9 of the wiring harness connector P26 and the reliable ground, between the terminal 10 of wiring harness connector P26 and the reliable ground.



Y

Go to step 5.

N


CS35 2013.04



5. Replace the passenger seat belt pretensioner


B.Replace the passenger seat belt pretensioner.

Refer to: Front Seat Belt (5.1.4 Seat Belt


C.Disconnect the battery negative cable and wait for a moment.

D.Turn the ignition switch to "ON" position.

E.Connect the diagnostic tool and clear the historical

DTCs.

F.Read the DTC again.

www.nasicoelec.ir

N

Replace the airbag control module.




CS35 2013.04


DTC B0671, B0673



Fault

Code


B0671

B0673

• System fault lamp short circuit to ground or open circuit

• System fault lamp short circuit to power supply

• SDM internal algorithm parameter lack or error

• Output circuit fault

Fault

Code

B0671

B0673

Test Tactics


Tactics)

Control module hardware inspection


Fault Component

• Wiring harness

• SDM


Test Conditions







Is there any other DTCs except for the B0671 and

B0673?

Y





N

Go to step 2.

CS35 2013.04





B.Inspect the wiring harness connector of the passenger airbag and clean it.


Y


N

Go to step 3.

17

1

16

32

A4302056

5

P11

P26

32

16

1

17 disconnect the battery negative cable.


P11.

C.Disconnect the wiring harness connector P26 of the airbag control module.

D.Measure the resistance between the terminal 5 of the Instrument wiring harness connector P11 and the reliable ground.


E.Measure the voltage between the terminal 5 of the

Instrument wiring harness connector P11 and the reliable ground.


F.Measure the resistance value between the terminal

5 of the Instrument wiring harness connector P11 and the terminal 17 of the airbag control module wiring harness connector P26. Inspect the circuit for open circuit.



Y

Go to step 4.

N

Inspect and repair the open or short circuit fault between the terminal 5 of the Instrument wiring harness connector P11 and the terminal 17 of the airbag control module wiring harness connector P26.

CS35 2013.04


Test Conditions



4.2.1-44






www.nasicoelec.ir

CS35 2013.04


DTC B1000, B1001



Fault

Code

B1000

Description

• ECU internal fault

Definition

B1001 • Configuration fault

• Error or lack of SDM internal algorithm parameter

• Collision recorded

Fault

Code

B1000

B1001

Test Tactics

Control module hardware inspection


Tactics)

Carry out the system self-test. A module hardware fault is detected.

Carry out the system self-test. A collision record is detected.

Fault Component

• SDM


Test Conditions







Is there any other DTC except for B1000 and

B1001 ？

Y





N

Go to step 2.

CS35 2013.04







Y


N

Go to step 3.






CS35 2013.04


DTC B0041, B0040, B0045, B0046



Fault Code

B0041

B0040

B0045

B0046

Description


• Driver airbag resistance low

• Driver airbag short circuit to ground or bonding


Definition

• System detects driver airbag open circuit

• The system detects the driver curtain airbag resistance less than 1.1 Ω

• The system detects the driver airbag short circuit to ground or ground

• The system detects the driver airbag short circuit to power supply

Fault

Code

B0041

B0040

B0045

B0046

Test Tactics



Test Conditions



Tactics)


Fault Component

• Wiring harness

• Side airbag at driver's side






Is there any other DTC except for B0041, B0040,

B0045 and B0046?

Y





N

Go to step 2.

CS35 2013.04



2. Inspect the wiring harness connector of the driver side airbag


B.Inspect the wiring harness connector of the passenger side airbag and clean it.


Y


N

Go to step 3.




Y


N

Go to step 4.

CS35 2013.04



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



2 1 C.Disconnect the wiring harness connector S06 of the driver side airbag.

S06


11 of the wiring harness connector P26 and the

16 12 11 1 terminal 1 of the wiring harness connector S06, and

32 17 the resistance between the terminal 12 of P26 and

A4201044

P26 the terminal 2 of wiring harness connector S06, and check for open circuit.

www.nasicoelec.ir

Ω

E.Measure the resistance value (check for short circuit) between the terminal 11 and the terminal 12 of the wiring harness connector P26.







I.Measure the voltage (check for short circuit to power supply) between the terminal 12 of the wiring harness connector P26 and the reliable ground, and the voltage between the terminal 11 of wiring harness connector P26 and the reliable ground.




Y

Go to step 5.

N


CS35 2013.04


Test Conditions

5. Replace the driver side airbag


4.2.1-50


B.Replace the driver side airbag.

Refer to: Side Airbag (4.2.1 Supplemental

Restraint System, Removal and Installation).


www.nasicoelec.ir

CS35 2013.04


DTC B0028, B0029, B0030, B0032



Fault Code

B0029

Description


Definition

• The system detects the passenger airbag open circuit

B0028


• The system detects the passenger airbag resistance less than 1.1 Ω

B0030

B0032



2. Possible Sources cuit to ground or ground cuit to power supply

• The system detects the passenger airbag short circuit to ground or bonding


Fault

Code

B0029

B0028

B0030

B0032

Test Tactics



Tactics)


Fault Component

• Wiring harness

•

Passenger side airbag


Test Conditions








B0030 and B0032?

Y





N

Go to step 2.

CS35 2013.04



2. Inspect the wiring harness connector of the passenger side airbag


B.Inspect the wiring harness connector of the passenger side airbag and clean it.


Y


N

Go to step 3.




Y


N

Go to step 4.

CS35 2013.04



4. Inspect the circuit between the airbag control module and the passenger side airbag



2 1

C.Disconnect the wiring harness connector S01 of the passenger side airbag.

S01


14 of the wiring harness connector P26 and the

16 14 13 1 terminal 2 of the wiring harness connector S01, and

32 17 the resistance between the terminal 13 of wiring

A4201015

P26 harness connector P26 and the terminal 1 of wiring harness connector S01, and check for open circuit.

www.nasicoelec.ir

Ω

E.Measure the resistance value (check for short circuit) between the terminal 13 and the terminal 14 of the wiring harness connector P26.







I.Measure the voltage (check for short circuit to power supply) between the terminal 13 of the wiring harness connector P26 and the reliable ground, between the terminal 14 of wiring harness connector P26 and the reliable ground.




Y

Go to step 5.

N


CS35 2013.04


Test Conditions

5. Replace the passenger side airbag


4.2.1-54


B.Replace the passenger side airbag.

Refer to: Side Airbag (4.2.1 Supplemental

Restraint System, Removal and Installation).




Fault Code

B0049

B0048

Description


• Impact output short circuit to ground or open circuit

Definition

• SDM internal algorithm parameter lack or error

• Output circuit fault


Fault

Code

B0049

B0048

Test Tactics


Tactics)

• Control module hardware inspection

• Hardware circuit inspection


Fault Component

• Wiring harness

• SDM

CS35 2013.04









Are there any other DTCs except for the B0048 and

B0049?

Y www.nasicoelec.ir


N

Go to step 2.

2. Inspect the wiring harness connector of the airbag impact output


B.Inspect the wiring harness connector of the airbag impact output and clean it.


Y


N

Go to step 3.


A.Turn the ignition switch to the position "LOCK" and disconnect the battery negative for at least 60 s.



Y


N

Go to step 4.

CS35 2013.04



4. Inspect the circuit between the airbag control module and BCM

16

32

8

16

P22

26

P26

4 1

9

1

17



C.Disconnect the BCM wiring harness connector P22.


26 of the wiring harness connector P26 and the terminal 4 of the wiring harness connector P22.

Inspect for open circuit.


A4201014 ground.


F.Disconnect the battery negative cable and wait for a moment.

G.Turn the ignition switch to "ON" position.

H.Measure the voltage (check for short circuit to power supply) between the terminal 26 of the wiring harness connector P26 and the reliable ground.




Y

Go to step 5.

N


CS35 2013.04



5. Inspect the circuit between the airbag control module and ECM

E01


1 2

81

62

77 63

44


3

C.Disconnect the ECM wiring harness connector E01.

4 5

43

24

25

6


26 of the wiring harness connector P26 and the terminal 77 of the wiring harness connector E01.

Inspect for open circuit.

16 1

32 26 17


A4201052

P26

E.Measure the resistance value (check for body short circuit to ground) between the terminal 26 of the www.nasicoelec.ir

F.Disconnect the battery negative cable and wait for a moment.

G.Turn the ignition switch to "ON" position.

H.Measure the voltage (check for short circuit to power supply) between the terminal 26 of the wiring harness connector P26 and the reliable ground.




Y

Go to step 6.

N


CS35 2013.04









Y

7. Replace the engine control module


N www.nasicoelec.ir


B.Replace the engine control module.

Refer to: Engine Control Module (3.1.13

Electronic Control System - ME7 ，



CS35 2013.04


DTC B0051, B0034, B0052



Fault Code

B0051

B0034

B0052

Description

• Front airbag and front seat belt pretensioner ignited

• Side airbag ignited

• The airbag controller reaches the max limit and can't be used any more

Definition

• The system detects that the front airbag and the front seat belt pretentioner are ignited

• The system detects the side airbag ignited

• The system detects that the airbag controller reaches the max limit and can't be used any more

Fault

Code

B0051

B0034

B0052

Test Tactics



Test Conditions



Tactics)


Fault Component

• Wiring harness

• SDM






Is there any other DTC except for B0051, B0034 and B0052?

Y





N

Go to step 2.

CS35 2013.04







Y


N

Go to step 3.

4. Replace the airbag control module disconnect the battery negative cable for at least 60 s.

B.Replace the front airbag, seat belt pretensioner and the side airbag.

Refer to: (4.2.1 Supplemental Restraint



Y


N

Go to step 4.


B.Airbag control module.




CS35 2013.04


Removal and Installation

Driver Airbag and Steering Wheel

Removal


WARNING: The product bar code on all the airbag system parts is an only permanent identification and is not allowed to tear up or pollute during the removal so that the

Refer to: Battery Inspection (3.1.10 Charging System, General Procedures).

2.

Remove the left side retaining bolt on the steering column upper decorative cover.

4.2.1-61

3.

Remove the right side retaining bolt on the steering column upper decorative cover.

A4201048

A4201049

CS35 2013.04


4.

Remove the steering column upper decorative cover.

4.2.1-62

A4201017

5.

Rotate the steering wheel for 90° clockwise.

www.nasicoelec.ir

A4201018

6.

Insert the small screwdriver in the steel wire of the airbag steel clip pin from the steering lock housing, press it downward firmly, and release the steel wire from the clip pin.

7.

Rotate it for 180° anticlockwise, repeat the operation in the step 6.

8.

Continue to rotate for 90° anticlockwise, repeat step 6, and detach the driver airbag from the steering wheel.

9.

Disconnect the wiring harness connector of the driver airbag.

A4201032

A4201019

CS35 2013.04


10.

Remove the steering wheel.

1. Disconnect the wiring harness connector of the horn and the steering wheel audio control switch.

2. Remove the steering wheel retaining nut.

Torque: 33 Nm

1

2

4.2.1-63

A4201023

Installation www.nasicoelec.ir

CS35 2013.04


Clock Spring

Removal


WARNING: The product bar code on all the airbag system parts is an only permanent identification and is not allowed to tear up or pollute during the removal so that the manufacturers of the parts conduct quality tracking and performance check.

ing System, General Procedures).

2.

Remove the driver airbag and the steering wheel.

Refer to: Driver Airbag and Steering Wheel



3.

Remove the clock spring retaining screw.

4.2.1-64 x4

4.

Disconnect the clock spring wiring harness connector and take out the clock spring.

A4201039

A4201040

CS35 2013.04


Installation

1.

To install, reverse the removal procedure.

CAUTION: Rotate the clock spring clockwise till the end during the installation of the clock spring, and rotate it for 3.2 turns anticlockwise to align it with the mark.

Side Airbag


identification and is not allowed to tear up or pollute during the removal so that the manufacturers of the parts conduct quality tracking and performance check.

Refer to: Front Seat (5.1.3 Seat, Removal and Installation).

4.2.1-65

CS35 2013.04

4.2.1-66

Passenger Airbag

Removal

Special Tool


Interior and Exterior

Trim Remover

CA501-002

CA501-002 the operation on the airbag.


1.

Disconnect the battery negative cable.


2.

Remove the 4 retaining screws on the upper glove box.

4.2.1-66 x4

A5106013

CS35 2013.04


3.

Remove the 1 retaining screw in the glove box.

4.2.1-67

A4201028

4.

Remove the 2 retaining screws at the bottom of the glove box.

www.nasicoelec.ir

×2

A4201027

5.

Remove the passenger airbag and the instrument console inner frame retaining bolts.

Torque: 9 Nm

×2

6.

Use a proper tool to remove the passenger airbag upper trim strip on the Instrument.

A4201033

A4201035

CS35 2013.04


7.

Remove the retaining screw on the passenger airbag upper protecting panel on the Instrument. x3

4.2.1-68

A4201036

8.

Disconnect the passenger wiring harness connector, and remove the airbag.

www.nasicoelec.ir

A4201038

Installation

1.


CS35 2013.04


Airbag Control Module

Removal

1.



2.

Remove the console.

Refer to: Console (5.1.6 Instrument and

Console, Removal and Installation).

3.

Remove the retaining bolts of the airbag control module.

Torque: 8 Nm www.nasicoelec.ir

A4201029

4.

Disconnect the wiring harness connector of the airbag control module.

Installation

1.


A4201037

CS35 2013.04


WARNING: Handle the airbag with care to avoid bang, knock and drop. Do not allow unauthorized disassembly of the controller housing. Inspect the torque value of the retaining bolt no less than 8 Nm after tightening the controller.


www.nasicoelec.ir

CS35 2013.04


Impact Sensor

Removal

1.



2.

Remove the door threshold trim panel.

Refer to: Door Threshold Trim (5.1.9 Interior Trim and Ornamentation, Removal and

Installation).

3.

Remove the B-pillar trim panel.

www.nasicoelec.ir

1. Disconnect the wiring harness connector of the impact sensor.

2. Remove the impact sensor retaining bolt.

2

1

A4201030

Installation

1.


CS35 2013.04

www.nasicoelec.ir

www.nasicoelec.ir

www.nasicoelec.ir

Changan CS35 Workshop Manual

4.2 Supplemental Restraint System

Table of Contents PAGE

4.2.1 supplemental

Restraint System

Torque Specifications

System Overview

Component Description

Location View

Inspection and Verification

Symptom Chart

Abnormal Airbag Indicator Diagnosis

Airbag Indicator Always ON Diagnosis

Airbag Control Module Terminal List

Diagnostic Trouble Code (DTC) Type

Diagnostic Trouble Code (DTC) List

Data Stream List

DTC Diagnosis Procedure Index

DTC B0064, B0065, B0066, B0067

DTC B0026, B0022, B0024, B0025

DTC B1328, B1327

DTC B0017, B0016, B0018, B0019

DTC B0057, B0058, B0059, B0060

DTC B0671, B0673

DTC B1000, B1001

DTC B0041, B0040, B0045, B0046

DTC B0028, B0029, B0030, B0032

DTC B0051, B0034, B0052

Driver Airbag and Steering Wheel

Clock Spring

Side Airbag

Passenger Airbag

Airbag Control Module

Impact Sensor

Related manuals

Table of contents

Changan CS35 Workshop Manual

4.2 Supplemental Restraint System

Table of Contents PAGE

4.2.1 supplemental

Restraint System

Torque Specifications

System Overview

Component Description

Location View

Inspection and Verification

Symptom Chart

Abnormal Airbag Indicator Diagnosis

Airbag Indicator Always ON Diagnosis

Airbag Control Module Terminal List

Diagnostic Trouble Code (DTC) Type

Diagnostic Trouble Code (DTC) List

Data Stream List

DTC Diagnosis Procedure Index

DTC B0064, B0065, B0066, B0067

DTC B0026, B0022, B0024, B0025

DTC B1328, B1327

DTC B0017, B0016, B0018, B0019

DTC B0057, B0058, B0059, B0060

DTC B0671, B0673

DTC B1000, B1001

DTC B0041, B0040, B0045, B0046

DTC B0028, B0029, B0030, B0032

DTC B0051, B0034, B0052

Driver Airbag and Steering Wheel

Clock Spring

Side Airbag

Passenger Airbag

Airbag Control Module

Impact Sensor

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Table of contents