Passenger Occupant Detection System

Passenger Occupant Detection System

• Follow all Safety Precautions when working on the passenger occupant detection system for the front passenger airbag deactivation. Refer to => [ Passive Occupant Detection System Safety Precautions ] Passive Occupant Detection System Safety Precautions.

• Before handling pyrotechnic components (for example, disconnecting the electrical connector), the person handling it must "discharge static electricity". This can be done by touching the door striker, for example.

The replacement part (service kit) for the passenger occupant detection system is already pre-calibrated and must not be separated under any circumstances. The service kit consists of:

• Seat Occupied Recognition Control Module (J706)

• Seat Occupied Recognition Pressure Sensor (G452)

• Passive Occupant Detection System Mat

• Seat cushion

Removing

- Move the seat height to the middle position before removing the seat.

- Remove the passenger seat. Refer to => [ Front Seat ] Front Seat.

- Disconnect the ground cable from the battery with the ignition on.

• On vehicles with a luggage pass-through, it is sufficient to fold the backrest forward, it does not have to be removed.

- Remove front backrest. Refer to => [ Left Front Seat Backrest ] Left Front Seat Backrest.

• Do not disconnect the connectors from the seat occupied recognition pressure sensor (G452) and seat occupied recognition control module (J706).

- Using a narrow screwdriver, carefully press the seat occupied recognition pressure sensor (G452) - item 3 - off the bracket - arrow -.






- Open the seat occupied recognition pressure hose guide - 1 - and free up the pressure hose - 2 -.

- Release the retaining spring - 1 - and tilt the seat occupied recognition control module (J706) - item 2 - out of the mount.






- Remove the electrical connector - 4 - from the bracket by pressing the release and removing the electrical connector.

- Open the retaining tab on the electrical wiring harness guide - 5 - - arrow - and free up the wiring harness - 3 -.

- Remove the front seat cover and cushion. Refer to => [ Front Seat Cushion Cover and Upholstery ] Front Seat Cushion Cover and Upholstery.

- Carefully pry out the seat occupied recognition mat clips - 1 - and - 3 - on the front of the seat pan using a pry lever (80 - 200).






- Remove the seat pan cover with upholstery by first guiding the seat occupied recognition pressure sensor (G452) through the opening in the lower seat frame.

Damage risk.

• Do not bend the seat occupied recognition pressure hose and mat.

- Remove the cover and cushion, the mat for the - 2 - passenger occupant detection system and the passenger occupant detection system pressure sensor (G452).

Installing

- Clean the threaded bolt holes for self-locking nuts, for example using a thread tap.

- Replace all self-locking bolts.

Install in reverse order of removal. Note the following:

• Follow all Safety Precautions when working on the passenger occupant detection system for the front passenger airbag deactivation. Refer to => [ Passive Occupant Detection System Safety Precautions ] Passive Occupant Detection System Safety Precautions.

• Before handling pyrotechnic components (for example, connecting the electrical connector), the person handling it must "discharge static electricity". This can be done by touching the door striker, for example.

• Do not bend the seat occupied recognition pressure hose and mat.

• Make sure the connectors are installed all the way in and are secure.

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. There must not be anyone inside the vehicle when connecting the battery.

- Connect the battery ground cable with the ignition turned on.

When installing a new service kit and after each repair on the front passenger seat where the seat and/or the backrest cover is disengaged, a basic setting procedure must be performed on the seat occupied recognition control module.

- At the end, select the "Airbag" function in "guided fault finding".

• -J706 Passive occupant detection system control module basic setting