Seat Position Sensor

Seat Position Sensor

The seat position sensor is a component of the wiring harness to the passenger occupant detection system control module (J706) , whose electrical harness connectors must not be disconnected. To replace the seat position sensor, the electrical wires to the seat position sensor must be disconnected and the new seat position sensor must be connected with crimp connectors.

Removing

• 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.

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

- Remove screw - 3 - and (0.3 Nm) and seat position sensor - 4 - from the seat pan lower frame.






Do not damage the insulation on the individual wires.

- Cut protective hose - 2 - to just in front of clip - 1 -.

- Cut through both electrical wires at the places marked with - arrow A - and - arrow B - to approximately 1/3 to 2/3 of the free length.

Installing

• Observe safety precautions for work on airbags => [ Airbag, Belt Tensioner and Battery Cut-Out Units, General Safety Precautions ] Airbag, Belt Tensioner and Battery Cut-Out Units, General 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.

- Cut the electrical wires on the new seat position sensor to the same length as those on the old sensor.

• The same wire colors must have the same length.

- Connect the electrical wires with crimp connectors - arrow A - and - arrow B - => Electrical Equipment.






- Wrap the entire length of the wiring harness from the clip to the seat position sensor with fabric-reinforced adhesive tape.

- Install the seat position sensor, making sure the hook - arrow C - on the sensor is inserted in the seat pan lower frame.

Further installation is performed in reverse sequence of removal, but observe the following:

• 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.

• If the airbag indicator lamp (K75) indicates a fault after installation, the DTC memory must be checked, deleted and checked again Vehicle diagnostic tester.