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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Passenger Protection, Airbags, Seat Belts >> 69 Passenger Protection, Airbags, Seat Belts >> Airbag Control Module >> Airbag Control Module -J234-, REMOVING AND INSTALLING >> Installing

Airbag Control Module -J234-, REMOVING AND INSTALLING: Installing

WARNING:

Risk of injury due to involuntary deployment.

  • Pay attention to the safety precautions when working with pyrotechnic components. Refer to SAFETY PRECAUTIONS WHEN WORKING WITH PYROTECHNIC COMPONENTS .
  • Before handling pyrotechnic components (for example, connecting a connector), the person handling it must "discharge static electricity". For example, this can be done by briefly touching the door striker.

Install in reverse order of removal and note the following:

NOTE:

Make sure the connectors are pushed in all the way and that they engage audibly.

WARNING:

Repairing pyrotechnic components (for example the airbag and seat belt tensioner) incorrectly increases the risk of injuries due to unintentional deployments when the battery is connected.

  • The ignition must be on when connecting the battery.
  • There must not be anyone in the vehicle interior when connecting the battery.

-- Connect the battery ground cable with the ignition switched on. Refer to BATTERY, DISCONNECTING AND CONNECTING .

WARNING:

Repairing pyrotechnic components (for example the airbag and seat belt tensioner) incorrectly increases the risk of injuries due to unintentional deployments when the ignition is switched on.

  • If the ignition is not switched on after the battery is reconnected - >>indicator lamps in the instrument cluster do not light up<< - the ignition (key/button) may only be switched on when the driver seat is positioned all the way back.
WARNING:

Risk of malfunction.

  • After every removal and installation of the Airbag Control Module - J234-, the Guided Function "Inertial sensor basic setting" must be performed.
  • If the Airbag Control Module -J234- is replaced with a new part, the basic setting is performed when implementing the "15 - Replace airbag control module" program.
  • If the Airbag Control Module -J234- is removed and then the same one is reinstalled, perform the "inertial sensor basic setting" as follows:

-- Connect the Vehicle Diagnostic Tester.

-- Switch the ignition on.

-- Select and start the Diagnostic  operating mode.

-- Select the Test plan  tab.

-- Select the Select individual test  button and select the following tree structure consecutively:

-- Start the selected program and follow the instructions on the Vehicle Diagnostic Tester display.

NOTE:

If the Airbag Indicator Lamp -K75- indicates a fault after installing, check the DTC memory, erase it and check it again using the Vehicle Diagnostic Tester.

Installation Instructions: Tightening Specifications, Replacing Body Parts. Refer to OVERVIEW - AIRBAG CONTROL MODULE  and Center Console Storage Compartment .