Bmw Airbag SRS information?

General Information

The Air Bag is referred to as a Supplemental Restraint System (SRS) component because it is designed to work with, or as a supplement to, the seat belts supplied with the vehicle.

CAUTION

Air bags should never be assumed to take the place of seat belts. The air bag is designed to work in conjunction with the seat belts. Most states have instituted laws requiring the use of seat belts. Consult your local and state laws regarding seat belt usage.

WARNING

If the air bags have deployed, the air bags, SRS control unit, and if installed, the seat belt tensioner assemblies must be replaced.

A basic SRS is comprised of the following components:

SRS Airbag

SRS Sensors

SRS Control Unit

Steering wheel contact ring

SRS Indicator Light (SRS Warning Light)

The SRS Sensors are used by the SRS Control Unit to detect a moderate to severe frontal collision. If such is the case, the SRS Sensors send a signal to the SRS Control Unit, which in turn activates the SRS Airbag. The SRS Control Unit also has it's own emergency backup power in case the vehicle's electrical system is disconnected in a crash.

The SRS Control Unit also monitors the integrity of the SRS System once the ignition key is switched ON . Under normal operating conditions, when the ignition key is initially turned to the ON position, the SRS Indicator Light should come on for 6 seconds, and then go out. This serves as a bulb check for the SRS Indicator Light. If the SRS Control Unit detects a problem in the SRS system, the SRS Indicator Light will remain ON until the problem is resolved and the SRS Diagnostic Trouble Codes (DTCs) erased.

CAUTION

If the SRS Indicator Light fails to light, or is on continuously, the cause should be determined immediately. The system may have a problem that could compromise the safe operation and/or deployment of the SRS system.

Fig. The front air bags are designed to deploy in a severe frontal impact that occurs within 30° of the vehicle's centerline

Fig. The left side impact sensor shown mounted in front of the left front shock tower-E36 model shown

Fig. The right side impact sensor shown mounted in front of the right front shock tower near the washer reservoir-E36 model shown

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For more car related problem troubleshooting:---

This are the sections, you can go through and click the link to read its troubleshooting.

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The car will not start?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-start.html

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Car will not crank?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-crank.html

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Car has no spark?

http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html

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How to troubleshoot car battery?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-car-battery.html

-----------------

How to test starter solenoid?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-starter-solenoid.html

--------------------

How to test cars starter?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-cars-starter.html

How to replace starter in car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-starter-in-car.html

-----------

car will turn over but will not start?

http://technoanswers.blogspot.com/2011/05/car-will-turn-over-but-will-not-start.html

-----------------

Car wont start?

http://howtobyme.blogspot.com/2011/10/car-wont-start.html

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Disarming the System?

1. Place the ignition switch in the OFF position.
2. Disconnect the negative battery terminal and cover the battery terminal to prevent accidental contact.
3. Once the battery has been disconnected, if the electrical connector for the air bag gas generator is not disconnected, you must wait for a period of:
   
   
   30 minutes for vehicles manufactured before 9/93

   5 seconds for vehicles manufactured after 9/93

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Place the ignition switch in the OFF position.
3. Disconnect the negative battery terminal and cover the battery terminal to prevent accidental contact.
4. Once the battery has been disconnected, wait for a period of approximately 10 minutes allowing the capacitor in the control unit to discharge.
5. When repairs are completed, connect the negative battery cable.

1. Place the ignition switch in the OFF position.
2. Disconnect the negative battery terminal and cover the battery terminal to prevent accidental contact.
3. Once the battery has been disconnected, wait for a period of approximately 10 minutes allowing the capacitor in the control unit to discharged. Once the capacitor is discharged, a trigger pulse cannot be generated inadvertently.
4. Disconnect the crash sensors in the engine compartment.
5. Remove the lower cover of the steering column and disconnect the orange connector.

--------

For more car related problem troubleshooting:---

This are the sections, you can go through and click the link to read its troubleshooting.

---------

The car will not start?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-start.html

-----------------

Car will not crank?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-crank.html

-----------

Car has no spark?

http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html

-------------

How to troubleshoot car battery?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-car-battery.html

-----------------

How to test starter solenoid?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-starter-solenoid.html

--------------------

How to test cars starter?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-cars-starter.html

How to replace starter in car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-starter-in-car.html

-----------

car will turn over but will not start?

http://technoanswers.blogspot.com/2011/05/car-will-turn-over-but-will-not-start.html

-----------------

Car wont start?

http://howtobyme.blogspot.com/2011/10/car-wont-start.html

----------

Arming The System?

The procedure is as follows :---

1. Place the ignition switch in the OFF position.
2. Attach the sensors, the steering column connector and the seat belt tensioner connectors.
3. Connect the negative battery terminal.
4. Place the ignition switch in the ON position. Check that the SRS air bag light illuminates for 6 seconds and extinguishes. If it illuminates in any other pattern, check the components and their connections for proper operation and recheck the operation of the warning light.

1. Place the ignition switch in the OFF position.
2. Connect the sensors, the steering column connector and the seatbelt tensioner connectors.
3. Connect the negative battery terminal.
4. Place the ignition switch in the ON position. Check that the SRS light illuminates for 6 seconds and extinguishes. If it illuminates in any other pattern, there is a problem that needs to be rectified by a qualified BMW technician.

---------

For more car related problem troubleshooting:---

This are the sections, you can go through and click the link to read its troubleshooting.

---------

The car will not start?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-start.html

-----------------

Car will not crank?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-crank.html

-----------

Car has no spark?

http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html

-------------

How to troubleshoot car battery?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-car-battery.html

-----------------

How to test starter solenoid?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-starter-solenoid.html

--------------------

How to test cars starter?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-cars-starter.html

How to replace starter in car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-starter-in-car.html

-----------

car will turn over but will not start?

http://technoanswers.blogspot.com/2011/05/car-will-turn-over-but-will-not-start.html

-----------------

Car wont start?

http://howtobyme.blogspot.com/2011/10/car-wont-start.html

----------

How to replace ignition switch on 1985 Ford E-350 Econoline?

Replacing ignition switch is not very difficult.

The ignition switch is under the steering column shroud. You have to remove the shroud, disconnect the electrical connector, remove two nuts, lift switch up to separate it from the actuator rod, then remove the switch. It's a good idea to remove the battery negative cable before you start.

This will help.Thanks.

For more car related problem troubleshooting:---

This are the sections, you can go through and click the link to read its troubleshooting.

---------

The car will not start?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-start.html

-----------------

Car will not crank?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-crank.html

-----------

Car has no spark?

http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html

-------------

How to troubleshoot car battery?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-car-battery.html

-----------------

How to test starter solenoid?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-starter-solenoid.html

--------------------

How to test cars starter?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-cars-starter.html

How to replace starter in car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-starter-in-car.html

-----------

car will turn over but will not start?

http://technoanswers.blogspot.com/2011/05/car-will-turn-over-but-will-not-start.html

-----------------

Car wont start?

http://howtobyme.blogspot.com/2011/10/car-wont-start.html

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