Caliber L4-2.0L (2008)
Seat Sensor/Switch: Service and Repair
Installation
INSTALLATION
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.
WARNING: To avoid serious or fatal injury on vehicles equipped with the Occupant Classification System (OCS), any time the passenger side
front seat assembly has been removed or loosened from the vehicle for service of any vehicle component or system the Occupant Classification
System Verification Test must be performed using a diagnostic scan tool and the Occupant Classification Seat Weight special tool following
reinstallation. Failure to observe this warning could result in an accidental, incomplete, or improper passenger side front supplemental
restraint deployment.
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.
1. Install the seat weight sensor and install the nuts securing the seat weight sensor to the adjuster track. Tighten nuts to 28 Nm (21 ft. lbs.).
2. Place the seat track onto the seat riser.
3. Install the nut on the center stud and repeat for each of the four weight sensors.
CAUTION: Do not tighten the center nut to the seat weight sensors without the use of strain gauge alignment tool 9689.
4. Insert the fork (1) into weight sensor and seat the support yoke (2) firmly against the weight sensor cage. Tighten nut to 45 Nm (33 ft. lbs.). Repeat
for all four sensors.
