Driver Head Curtain Airbag Igniter -N251- AND Front Passenger Head Curtain Airbag Igniter -N252-, REMOVING AND INSTALLING
- Removing
- Follow all Safety Precautions when working with pyrotechnic components. Refer to PYROTECHNIC, ELECTRICAL AND MECHANICAL RESTRAINT SYSTEM COMPONENTS, SAFETY PRECAUTIONS AND TESTING PROCEDURES .
- Note the additional safety precautions when working on the side curtain airbag. Refer to HEAD CURTAIN AIRBAG ADDITIONAL SAFETY PRECAUTIONS .
- Follow all regulations when disposing of pyrotechnic components. Refer to AIRBAG, BELT TENSIONER AND BATTERY CUT-OUT UNITS, STORING, TRANSPORTING AND DISPOSING .
-- Remove headliner. Refer to HEADLINER OVERVIEW .
-- Turn on the ignition.
-- Disconnect the ground cable from the battery with the ignition on. Refer to BATTERY, DISCONNECTING AND CONNECTING .
Before handling airbag units (for example, disconnecting electrical connector), the person handling it must "discharge static electricity". This can be done by touching the door striker, for example.
-- Unlock connector lock with a small screwdriver -2-.
-- Remove connector -1- from gas generator -3-.
-- Remove side curtain airbag screws. Refer to -Item 3- Driver Head Curtain Airbag Igniter -N251- AND Front Passenger Head Curtain Airbag Igniter -N252- OVERVIEW (beginning at rear).
-- Remove screws -3- for gas generator -1- on roof frame -2-.
-- Remove cap nut -4- from ground bolt.
-- Unclip locating pins -1- on retainer straps -3- for side curtain airbag -2- from body.
-- Remove the side curtain airbag -2- from the vehicle.
- Installing
- Follow all Safety Precautions when working with pyrotechnic components. Refer to PYROTECHNIC, ELECTRICAL AND MECHANICAL RESTRAINT SYSTEM COMPONENTS, SAFETY PRECAUTIONS AND TESTING PROCEDURES .
- Note the additional safety precautions when working on the side curtain airbag. Refer to HEAD CURTAIN AIRBAG ADDITIONAL SAFETY PRECAUTIONS .
- Always follow side curtain airbag installation procedure.
Replace self-locking nuts and screws when assembling.
Threaded holes for screws must always be cleaned (for example, with thread cutter)
Before handling airbag units (for example, disconnecting electrical connector), the person handling it must "discharge static electricity". This can be done by touching the door striker, for example.
-- Engage side curtain airbag -1- on ground bolt and tighten cap nut -4- by hand.
-- Tighten the bolts -3- for the gas generator -1- on the roof frame -2- to the tightening specification in the following sequence: -A, B and C-.
-- Tighten cap nut -4- on ground bolt to the tightening specification.
-- Start by clipping and bolting the head curtain airbag at the A-pillar. Then work toward the D-pillar.
-- Place connector -1- on gas generator -3-.
-- Lock connector -1- with connector lock -2-.
Make sure the connectors are installed correctly and are secure.
Make sure the wires do not get caught.
-- Install headliner. Refer to HEADLINER OVERVIEW .
Ignition must be on when connecting battery. If pyrotechnic components (for example, airbag, belt tensioner) are not repaired correctly, they may deploy unintentionally after connecting battery. Maintain personal safety when connecting the battery by staying out of airbag deployment areas, keeping a distance from belt tensioners/seat belts and ensuring no other people are in the vehicle interior at the moment when the battery is connected.
-- Switch on ignition.
-- Turn on the ignition and connect the battery ground cable. Refer to BATTERY, DISCONNECTING AND CONNECTING .
-- If the Airbag Indicator Lamp -K75- indicates a fault, check the DTC memory, erase it and check it again using the Vehicle Diagnostic Tester.