Sensor, Occupant Detection: Installation: Installation
To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.
When handling a new Occupant Detection Sensor (ODS), it should never be bent, creased, torn, cut or abraded. The ODS should not be handled with or come into contact with hard or sharp-edged tools or objects. Do not allow the ODS to drop more than 2 meters (6.5 feet). Prior to installation, do not sit on, stand on or place boxes, tools or any other foreign object on the ODS. If the ODS adhesive patches become inadvertently adhered to any seat materials or foreign objects prior to proper positioning on the seat cushion, the ODS must be scrapped and replaced with a new unit. Do not modify the seat foam or trim materials of a seat that contains an ODS. Failure to observe these cautions may result in an inoperative ODS, or an ODS that provides inaccurate inputs to the Occupant Restraint Controller (ORC).
The adhesive used to secure the ODS to the seat is heat activated and requires that both the adhesive and the material it is applied to be ideally between 21° and 38° C (between 70° and 100° F). Application of the ODS to surfaces below 10° C (50° F) is not recommended as the adhesive becomes too firm to readily adhere. Do not touch or allow the adhesive patches to contact any foreign materials with the release paper removed. Do not attempt to add adhesive materials to the ODS.
The Occupant Detection Sensor (ODS) is used only in the passenger side front seat of vehicles manufactured for export markets. Vehicles manufactured for domestic markets use the Occupant Classification System (OCS) instead of the ODS on the passenger side front seat.
- Carefully inspect the Occupant Detection Sensor (ODS) (3) to be certain that it is in good condition.
- Insert the ODS pigtail wire harness and the tail of the ODS through the clearance hole near the back (with base, non-storage seat) or near the center (with storage seat) of the seat cushion foam.
- Carefully position and center the ODS mat onto the seat cushion foam (1). On a base (non-storage) seat, the distance (A) from the rear edge of the trench in the foam to the rear edge of the sensor mat should be 145 millimeters (inches). On a storage seat, the distance (A) from the rear edge of the trench to the front edge of the sensor mat should be 70 millimeters (inches).
- Remove the release paper from the adhesive patch of the ODS mat.NOTE:
The release paper should not be removed from the adhesive patch of a new ODS mat until just prior to application to the seat cushion foam.
- Apply hand pressure (0.8 bar or 12 psi) over the adhesive patch of the ODS for at least four seconds to activate and adhere the adhesive to the seat cushion foam.
- Reach under the seat cushion pan to access and reconnect the ODS pigtail wire connector to the seat wire harness.
- If equipped, reinstall the heater and/or ventilation elements onto the seat cushion foam. Refer to PAD, HEATER, INSTALLATION .
- Reinstall the trim onto the front seat cushion foam and pan. Refer to COVER, SEAT CUSHION, INSTALLATION .
- Reinstall the passenger side front seat into the vehicle. Refer to SEAT, INSTALLATION or SEAT, REAR, INSTALLATION .
- Reconnect the negative cable to the battery. If equipped with an Intelligent Battery Sensor (IBS), reconnect the IBS connector.