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Mazda CX-5 Service & Repair Manual: Lap Pre Tensioner Seat Belt [Two Step Deployment Control System]

Mazda CX-5 Service & Repair Manual / Restraints / Lap Pre Tensioner Seat Belt [Two Step Deployment Control System]

Purpose

Function


Construction


Operation

Lap pre-tensioner activation

1. The gas generator emits a spark when a signal is received from the SAS control module, causing gas to form.

2. The gas pressure pushes the piston inside the tube, pulling the lead wire.

3. As the lead wire is pulled, the part of the seat belt attached to the wire is also pulled.

4. The slack in the belt is tightened by the front seat belt being pulled by the lap pre-tensioner seat belt and the seat belt ELR mechanism, restraining the passengers.


After activation

1. After operating (deploying) the pre-tensioner, the lead wire is pulled back. However the front seat belts are locked by activation of the stopper function so that the belt webbing is not released.

2. The restraint force of the seat belt is adjusted by the front seat belt load limiter mechanism, preventing injury to the driver and passenger from seat belt pressure.


Fail-safe

Front Seat Belt Removal/Installation
WARNING: Handling the front seat belt (pre-tensioner seat belt) improperly can accidentally deploy the pre-tensioner seat belt, which may seriously injure you. Read the air bag system se ...

Pre Tensioner Seat Belt [Standard Deployment Control System]
Purpose The pre-tensioner seat belt retracts and tightens the seat belt webbing to protect the front passengers during a collision. Function The pre-tensioner seat belts operate ...

Other materials:

Power Seat Switch Inspection
WARNING: Handling a side air bag improperly can accidentally operate (deploy) the air bag, which may seriously injure you. Read the service warnings/cautions in the Workshop Manual before handling the front seat (side air bag integrated).. 1. Switch the ignition off (LOCK). 2. ...

General Procedures (Front And Rear Axles)
Wheel and Tire Installation 1. When installing the wheels and tires, tighten the wheel nuts in a criss-cross pattern to the following tightening torque. Tightening torque 108—147 N·m {12—14 kgf·m, 80—108 ft·lbf} Suspension Links Removal/Installation 1. For the joint ...

DSC Related Parts Sensor Initialization Procedure
WARNING: If the initialization procedure is not completed, the DSC will not operate properly and it might cause an unexpected accident. Therefore, after replacing or removing the DSC HU/CM or SAS control module, make sure to perform the initialization procedure to insure proper DSC ...

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