Design [3 of 4]
Front airbagsWarning! Never use an ohmmeter or similar tool to test airbags, inflatable curtains, adaptive seatbelt limiters, adaptive steering column or seat belt tensioners. Disconnect airbags, inflatable curtains adaptive seatbelt limiters, adaptive steering column or seat belt tensioners before testing them. Failure to do so may result in accidental deployment. This could result in serious injury or death.
The airbags at the front of the vehicle are:
- driver airbag, 2 stage deployment
- front passenger airbag, 2 stage deployment.
The driver's airbag is located in the steering wheel. The passenger airbag is located above the glove compartment in the dashboard.
The front airbags have two ignition components each. These are electrically separated from each other. This means that the different ignition components have their own separate power supply and grounding points from the control module. Two power supply outputs are required from the control module for each airbag, one for each ignition component. This means that in total four pins on the control module, two power supply pins and two ground pins, are used for each airbag.
When activating the airbags, electrical signals are transmitted from the supplemental restraint system module (SRS) to the relevant airbag stage.
Stage 1
Stage 1 of the driver's airbag is pyrotechnic. In the event of deployment, the charge combusts and the gas which develops is blown into the airbag.
Stage 1 on the passenger airbag consists of a pyrotechnic component in combination with a reservoir which stores a gas. On activation the pyrotechnic charge and mixes with the stored gas. The gas mixture is blown into the airbag.
Stage 2
Stage 2 of the driver's and passenger airbags is pyrotechnical. In the event of deployment, the charge combusts and the gas which develops is blown into the airbag.
The pace of the airbag 2 stage activation is dependent on collision type and seat belt use. Both stages activate but in the event of a lesser impact, there is a greater time delay between stage 1 and stage 2. For more serious impacts the time delay is shorter between stages 1 and 2.
Warning! Never use an ohmmeter or similar tool to test airbags, inflatable curtains, adaptive seatbelt limiters, adaptive steering column or seat belt tensioners. Disconnect airbags, inflatable curtains adaptive seatbelt limiters, adaptive steering column or seat belt tensioners before testing them. Failure to do so may result in accidental deployment. This could result in serious injury or death.
Side impact air bags
Warning! Never use an ohmmeter or similar tool to test airbags, inflatable curtains, adaptive seatbelt limiters, adaptive steering column or seat belt tensioners. Disconnect airbags, inflatable curtains adaptive seatbelt limiters, adaptive steering column or seat belt tensioners before testing them. Failure to do so may result in accidental deployment. This could result in serious injury or death.
There are two side impact protection (SIPS) bags connected to the supplemental restraint system module (SRS). Their connectors are electrically separated from each other. The side impact protection (SIPS) bags are on the outside of the front seats, underneath the upholstery. The side airbags deploy on the side of the impact. Their task is to protect the hips, chest and upper body in the event of a side-on collision.
The side airbags together with the inflatable curtains and other safety systems can help to protect the driver and front passenger in the event of a side-on collision.
The side impact protection (SIPS) bag uses a pyrotechnic component in combination with a reservoir which stores a gas. On activation the pyrotechnic charge and mixes with the stored gas. The gas mixture is blown into the airbag.
Warning! Never use an ohmmeter or similar tool to test airbags, inflatable curtains, adaptive seatbelt limiters, adaptive steering column or seat belt tensioners. Disconnect airbags, inflatable curtains adaptive seatbelt limiters, adaptive steering column or seat belt tensioners before testing them. Failure to do so may result in accidental deployment. This could result in serious injury or death.
Belt tensioners
Warning! Never use an ohmmeter or similar tool to test airbags, inflatable curtains, adaptive seatbelt limiters, adaptive steering column or seat belt tensioners. Disconnect airbags, inflatable curtains adaptive seatbelt limiters, adaptive steering column or seat belt tensioners before testing them. Failure to do so may result in accidental deployment. This could result in serious injury or death.
The vehicle four or five belt tensioners (depending on the market). Four of these are located at shoulder height - one for each belt retractor - two in the front (1 and 2) and two in the rear seat (3 and 4).
Note! The seat belt tensioners for the USA/CDN market (1a and 2a) are as illustrated above. The seat belt tensioners for other markets (not USA/CDN) (1b and 2b) are as illustrated above.
In some markets, there is also a belt tensioner (5) located in the belt anchorage waist-high at the driver's seat (not C30).
The belt tension contains a pyrotechnical charge that tensions the belt upon deployment.
The seat belt tensioner tensions the seat belt to reduce the forward movement of the body. This also reduces the forces on the chest from the airbag and seat belt.
The supplemental restraint system module (SRS) determines whether to deploy the seat belt tensioners based on whether the seat belts are being used. The seat belt tensioner will not be activated if the seat belt is not engaged. If the seat belt is fastened and the seatbelt indication does not function for the front seat belt buckles, the seat belt tensioners will be activated anyway. Rear seat belt tensioner activation is market dependent.
The belt tensioner consists of a pyrotechnical charge and a cylinder with a piston. The piston is connected to a steel cable which is secured to the seat belt retractor. When the control module deploys the belt tensioner, the piston is forced downward by the expanding gas. The piston pulls in the steel cable which retracts the belt.
For USA/CDN: the adaptive belt force limiter, belt retractor, belt retractor sensor and belt tensioner are mounted in a unit. If there is a fault in any of these components, the entire unit must be replaced.
Warning! Never use an ohmmeter or similar tool to test airbags, inflatable curtains, adaptive seatbelt limiters, adaptive steering column or seat belt tensioners. Disconnect airbags, inflatable curtains adaptive seatbelt limiters, adaptive steering column or seat belt tensioners before testing them. Failure to do so may result in accidental deployment. This could result in serious injury or death.