Removal Procedure
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- Disable the SIR system. Refer to SIR Disabling and Enabling .
- Remove the seat cushion trim cover. Refer to Front Seat Cushion Cover Replacement .
- Remove the connector position assurance (CPA) and disconnect the electrical connectors from the electronic control unit (ECU) module.
- Lift the seat cushion pad to access the ECU retaining bolts (3).
- Remove the bolts that retain the ECU (2) to the seat frame.
- If replacing the passenger presence system (PPS) with a service kit, it is necessary to remove the three screws holding the ECU to the bracket. The bracket will be unused.
- Remove the sensor assembly wiring harness attachments from the seat cushion frame. Note the location of the wire routing.
- Remove the passenger presence system from the seat.
CAUTION:
When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling . Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs.
CAUTION:
Replace the passenger presence system as a complete assembly to prevent possible injury to the occupant. All the components in the service kit are assembled and calibrated as a unit. Using only some of the components in the service kit will cause the passenger presence system to operate improperly.
IMPORTANT:
Note the location of the ECU attachment bolts and routing of the electrical harness. The location is different between seats with manual or power seat adjusters.