Front Passenger's Seat Occupied Sensor G128
Front Passenger's Seat Occupied Sensor G128
• The front passenger seat occupant sensor (G128) is only installed in the front seat.
Removing
• Follow all safety precautions when working on pyrotechnic components. Refer to => [ Restraint System Components, Safety Precautions and Testing Procedures ] Description and Operation.
• 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.
- Disconnect the ground cable from the battery with the ignition on.
- Remove the front passenger seat. Refer to => [ Standard Seat ] Standard Seat.
- Attach the front seat to the fixture for seat repair (VAS 6136). Refer to => [ Installing Front Seat on Fixture for Seat Repair VAS 6136 ] Installing Front Seat on Fixture for Seat Repair VAS 6136.
- Remove the upholstery from the rear part of the seat cover until the seat occupied sensor is freed up (seat pan):
• Standard seat => [ Seat Cover and Seat Cushion for Standard Seat, Separating and Connecting ] Seat Cover and Seat Cushion for Standard Seat, Separating and Connecting.
• Multicontour seat => [ Seat Cover and Seat Cushion for Comfort Reclining and Multicontour Seat, Separating and Assembling ] Seat Cover and Seat Cushion for Comfort Reclining and Multicontour Seat, Separating and Assembling.
- Disconnect the electrical harness connector for the seat occupied sensor.
- If present, carefully raise seat heating element.
- Carefully detach seat occupied sensor - 1 - with printed circuit board - 2 - from the seat cushion- 3 -.
Installing
• Follow all safety precautions when working on pyrotechnic components. Refer to => [ Restraint System Components, Safety Precautions and Testing Procedures ] Description and Operation.
• 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.
- Position the circuit board - 2 - for the seat occupied sensor - 1 - in the opening in the seat cushion - 3 -.
- Align seat occupied sensor according to the marks on the seat cushion.
The new seat occupied sensor should be installed in the same location on the seat upholstery as the old seat occupied sensor.
- Remove the protective film and adhere the seat occupied sensor to the seat cushion.
Installation is performed in reverse order of removal, noting the following:
• Make sure the seat occupied sensor is not covered by the seat heater element heating coils.
• 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.
When working on vehicles with the ignition turned on or where the engine has been started, there is a risk of unintentional engine start and of being poisoned by gas in closed areas. There is a risk of clothes and body parts being pulled or getting stuck.
Perform the following steps before turning on the ignition:
• Move the selector lever into P.
• Activate the parking brake
• Turn the ignition off.
• Open the hood.
• Connect the charger unit i.e., battery charger (VAS 5095A) to the battery jump start terminal for the 12V vehicle electrical system.
• Switch the ignition on.
- Connect the battery ground cable with the ignition turned on.
• If the airbag indicator lamp (K75) indicates a fault after installation, check the DTC memory, erase it and check it again Vehicle diagnostic tester.