Passive Occupant Detection System
Passive Occupant Detection System
• Follow all safety precautions when working with pyrotechnic components. Refer to => [ Safety Precautions ] Service Precautions and on the passenger occupant detection system, refer to => [ Passive Occupant Detection Sensor, Additional Safety Precautions ] Passive Occupant Detection Sensor, Additional Safety Precautions.
• Before handling pyrotechnical components (for example, disconnecting the connector), the person handling them must "discharge static electricity". For example, by briefly touching the door striker pin.
The passenger occupant detection system service kit is precalibrated and must not be disconnected. The service kit consists of:
• Passive Occupant Detection System Control Module -J706
• Passive Occupant Detection System Pressure Sensor -G452
• Passive Occupant Detection System Mat
• Seat Cushion
• Wiring Harness (between the passenger occupant detection system control module -J706 and passenger occupant detection system pressure sensor -G452).
Removing
- Move the seat height to the middle position before removing the seat.
- Remove the front seat on the passenger side:
• Standard seat and sport seat (power), refer to => [ Power Standard Front Seat ] Power Standard Front Seat.
• Super sport seat, refer to => [ Super Sport Front Seat ] Super Sport Front Seat.
- Turn on the ignition and disconnect the ground cable from the battery.
- Attach the front seat to the fixture for seat repair (VAS 6136). Refer to => [ Front Seat, Installing on the ] Front Seat, Installing on the Fixture For Seat Repair (VAS 6136).
- Remove the front backrest:
• Standard seat and Sport seat (manual), refer to => [ Front Backrest ] Front Backrest.
• Standard seat and sport seat (power), refer to => [ Front Backrest ] Front Backrest.
• Super sport seat, refer to => [ Front Backrest ] Front Backrest.
Do not disconnect the electrical connectors on the passenger occupant detection system pressure sensor (G452) and the passenger occupant detection system control module (J706).
- Using a narrow screwdriver, carefully press the passenger occupant detection system pressure sensor (G452) - 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 passenger occupant detection system control module (J706) - 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 bolt - 3 -.
- Remove the front passenger seat position sensor (G554) - 2 - while guiding the guide tab - arrow - out of the seat pan lower frame - 1 -.
- Remove the seat pan cover and upholstery (seat pan without seat depth adjuster). Refer to => [ Lower Seat Frame without Seat Depth Adjuster, Cover and Padding ] Lower Seat Frame Without Seat Depth Adjuster, Cover and Padding and fold to the side carefully.
- Carefully pry out the seat occupied recognition mat clips - 1 - and - 3 - on the front of the seat pan using a pry lever - Rmv outside mirror (80-200).
- Remove the seat pan cover and cushion by first guiding the passenger occupant detection system pressure sensor (G452) together with the wiring harness out through the opening in the seat pan. Then the passenger occupant detection system control module (J706) must be guided out through the opening.
Damage risk.
• Do not bend the seat occupied recognition pressure hose and mat.
- Remove the seat pan cover with upholstery with the seat occupied recognition mat - 2 -, the passenger occupant detection system pressure sensor (G452) and the passenger occupant detection system control module (J706).
- Separate the cover from the seat pan upholstery. Refer to => [ Backrest Cover and Upholstery, Separating and Connecting ] Backrest Cover and Upholstery, Separating and Connecting.
Installing
Do not disconnect the electrical connectors on the passenger occupant detection system pressure sensor (G452) and the passenger occupant detection system control module (J706).
- 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 with pyrotechnic components. Refer to => [ Safety Precautions ] Service Precautions and on the passenger occupant detection system, refer to => [ Passive Occupant Detection Sensor, Additional Safety Precautions ] Passive Occupant Detection Sensor, Additional Safety Precautions.
• Before handling pyrotechnical components (for example, connecting electrical connector), the person handling them must "discharge static electricity". For example, by briefly touching the door striker pin.
• Do not bend the seat occupied recognition pressure hose and mat.
• Make sure the connectors are installed all the way in and are secure.
Connect the battery with the ignition switched on. Pyrotechnic components could deploy after connecting the battery if they were not repaired correctly. Individuals must not be inside the vehicle when connecting the battery.
- Connect the battery ground (GND) cable with the ignition turned on.
When installing a new service kit and after each repair to the front passenger seat during which the seat and/or the backrest cover is disengaged, a basic setting procedure must be performed for the passenger occupant detection system control module. Refer to => [ Passive Occupant Detection Sensor, Additional Safety Precautions ] Passive Occupant Detection Sensor, Additional Safety Precautions.
- To complete select "Airbag" in "Guided Fault Finding", using a vehicle diagnostic tester.
• -J706 Passive occupant detection system control module basic setting.
For the correct tightening specifications, refer to => [ Seat Occupied Recognition Assembly Overview ] Seat Occupied Recognition Assembly Overview.