Air Bag Systems: Service and Repair

Inflatable Restraint Passenger Presence System Replacement - Front

Removal Procedure

Caution: Replace the passenger presence system as a complete assembly to prevent possible injury to the occupant. The bladder, the pressure sensor, the seat cushion, and the control module 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.




1. Remove the seat cushion trim cover and pad.
2. Disconnect the electrical connectors.
3. Remove the bolts that retain the electronic control unit (ECU) (1) from the bottom of the passenger seat cushion frame.
4. Remove the pressure switch (2) from the bottom of the passenger seat cushion frame.




5. Remove the push in retainers (1) that hold the bladder to the seat cushion frame.
6. Remove the inflatable restraint passenger presence system from the seat.

Installation Procedures




1. Install the inflatable restraint passenger presence system to the seat.
2. Install the push in retainers (1) that hold the bladder to the seat cushion frame.




3. Install the pressure sensor (2) to the bottom of the passenger seat cushion frame.

Notice: Refer to Fastener Notice.

4. Install the bolts that retain the (ECU) (1) to the bottom the passenger seat cushion frame.

Tighten the bolts to 2 N.m (18 lb in).

5. Connect the electrical connectors.
6. Install the seat cushion trim cover and pad.
7. Re-zero the inflatable restraint passenger presence system. Refer to Passenger Presence System Rezeroing. Programming and Relearning
8. Refer to Programming and Relearning Programming and Relearning