Occupant Detection Sensor - Installation

INSTALLATION

WARNING: 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.

CAUTION: 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).





1. Mark the Center Line (CL) of the seat cushion on the top of the seat cushion foam (4) or, if the vehicle is so equipped, on the seat cushion heater element mat of a heated seat or heated and ventilated seat.

CAUTION: 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.

2. Measure and mark a transverse line on the top of the seat cushion foam or, if the vehicle is so equipped, on the seat cushion heater element mat 140 millimeters (5.51 inches) (Distance A) rearward from the back edge of the crimp channel (1) in the seat cushion foam.
3. Peel the release paper (3) off of the two adhesive patches on the underside of the Occupant Detection Sensor (ODS) mat.
4. Carefully position the ODS onto the seat cushion with the label between the branches containing the circular sensor cells centered ± 5 millimeters (0.196 inches) on the marked seat cushion center line and with the rearward edge (2) of the sensor cell mat aligned with the transverse line behind the crimp channel.
5. Apply hand pressure (0.8 bar or 12 psi) over each of the two adhesive patches of the ODS for at least four seconds to activate and adhere the adhesive to the seat cushion foam or the heater element mat.
6. Route the ODS pigtail wires that exit the back of the hot melt block through the recess at the back of the seat cushion foam.
7. Reach under the back of the front seat cushion frame to access and reconnect the ODS pigtail wire connector to the seat wire harness.
8. Reinstall the trim onto the front seat cushion foam and frame. Seat Cushion Cover - Installation.
9. Reinstall the passenger side front seat into the vehicle. Front Seat - Installation.
10. Reconnect the battery negative cable.