Liberty 4WD V6-3.7L (2009)
Seat Sensor/Switch: Service and Repair
Seat Weight Sensor - Removal
REMOVAL
WARNING: Disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, Occupant
Classification System (OCS), seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect
and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before
performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to follow these instructions may
result in accidental airbag deployment and possible serious or fatal injury.
WARNING: To avoid serious or fatal injury on vehicles equipped with the Occupant Classification System (OCS), do not modify the front
passenger seat assembly or center floor console in any way. Do not use any prior year, subsequent year, secondary or aftermarket
seat trim covers. At no time should any Supplemental Restraint System (SRS) or OCS component be modified or replaced with
any part except those which are specified for the particular vehicle application in the Chrysler Mopar(R) Parts Catalog. Failure to
observe these precautions could cause an OCS miscalibration condition, which may result in the passenger airbag failing to deploy
when required or deploying when not required.
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. Wait two minutes for the system capacitor to discharge before further service.
2. Remove the passenger side front seat from the vehicle. See: Body and Frame/Seats/Service and Repair/Seat, Front/Seat - Removal.
3. From the underside of the seat, disconnect the seat wire harness from the connector receptacles of each of the four weight sensors.
4. Disconnect the seat wire harness from the connector receptacle of the seat track position sensor located on the inboard side of the inboard seat
adjuster upper track near the rear of the seat track.
CAUTION: A strain gauge alignment tool (Special Tool No. 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 track 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
cautions may result in irreversible sensor damage requiring sensor replacement.
