PT Cruiser L4-2.4L Turbo (2009)
Seat Sensor/Switch: Service and Repair
Seat Weight Sensor - Removal
REMOVAL
WARNING: To avoid serious or fatal injury, never strike or drop a seat weight sensor or the passenger side front seat assembly to which the
sensors are secured as it can damage the sensors or affect their calibration. The seat weight sensors and the passenger side front
seat assembly must be handled with care to avoid damage to the sensors. Do not sit upon or place any loads upon a passenger side
front seat while it is removed from its mounts in or outside of the vehicle. If an individual sensor is dropped or damaged, replace
the sensor with a new and unused unit. If a seat has been dropped during removal or loaded while removed from its mounts,
replace each of the seat weight sensors with new and unused units. Failure to observe this warning could result in an accidental,
incomplete, or improper passenger side front supplemental restraint deployment.
1. Disconnect and isolate the battery negative cable.
WARNING: Wait two minutes for the system reserve capacitor to discharge before servicing any airbag components.
2. Remove the passenger front seat from the vehicle as a unit See: Body and Frame/Seats/Service and Repair/Seat, Front/Seat - Removal.
CAUTION: Strain gauge alignment tool 9689 (2) must be used to secure the body of the seat weight sensor (1) from any rotation during
removal or installation of the nut that secures the sensor stud to the seat adjuster riser. In addition, the sensor fasteners should
always be serviced using hand tools ONLY, and not electric or pneumatic power tools. Failure to observe these precautions may
result in irreversible sensor damage and require sensor replacement.
3. Remove the passenger front seat riser from the seat See: Body and Frame/Seats/Service and Repair/Seat Riser - Removal.
4. Remove the seat adjuster riser from the seat weight sensors using strain gauge alignment tool 9689A to secure the sensor body. Then remove the
seat weight sensor from the seat adjuster track studs.
5. Disconnect each weight sensor electrical connector and install strain gauge alignment tool 9689A.
