Seat Cushion Heater Mat - Front

Seat Cushion Heater Mat - Front





Removal

NOTICE: If the passenger seat is equipped with an Occupant Classification Sensor (OCS) bladder system, to prevent system failure, it is necessary to carry out the OCS system reset when a front passenger seat cushion is disassembled, a new cushion cover is installed or an OCS system service kit is installed. A scan tool is used to carry out the OCS system reset.

NOTICE: Do not reinstall any heater mat after removal. The adhesive will not adhere correctly, causing it to bunch up or shift out of place. A new heater mat and a new foam pad must be installed. If a new heater mat is needed for a passenger seat cushion, an Occupant Classification Sensor (OCS) system service kit must be installed. Failure to follow these instructions can result in heated seat component damage, system failure or incorrect OCS system operation.

NOTE: If the passenger seat is equipped with an Occupant Classification Sensor (OCS) bladder system, a new OCS service kit and a new cushion heated seat mat must be installed. Refer to Occupant Classification Sensor (OCS) in the Removal and Installation portion of Restraint Systems.

NOTE: An OCS bladder system, an OCS system service kit has the electrical connector glued to the Occupant Classification System Module (OCSM). It cannot and should not be disconnected or altered.

NOTE: For component identification and locations, refer to Seat - Exploded View, Front Seat - Exploded View, Front.

All seats

1. NOTE: To identify the OCS system, refer to Seat - Exploded View, Front Seat - Exploded View, Front.
For a passenger seat equipped with a OCS service kit, remove the OCS. For additional information, refer to Occupant Classification Sensor (OCS) in the Removal and Installation portion of Restraint Systems.

2. Remove the seat cushion cover. For additional information, refer to Seat Cushion Cover - Front Seat Cushion Cover - Front.

3. NOTE: Note wire harness routing for installation.

At the front of the seat track, disconnect the cushion heater mat electrical connector and separate the wire harness retainer.





4. Remove the cushion foam pad from the cushion frame. Discard the cushion foam pad with heater mat.

Passenger seat with an OEM bladder Occupant Classification Sensor (OCS)

5. NOTE: Power seat track on top, manual below.
Remove the OCSM.

1. Disconnect the electrical connector.

2. NOTE: Only on manual track.
Bend the locking tab down (if equipped).

3. Remove the 2 screws.





6. NOTE: Power seat track on top, manual below.
Separate the pressure sensor.

1. Bend the locking tab down.

2. Slide the pressure sensor off the bracket.

3. Disconnect the electrical connector.





7. Detach the OCS bladder pin-type retainers.





8. NOTE: Power seat track on top, manual below.

Route the OCS system hose and pressure sensor through the cushion support wires.





Installation

1. For a passenger seat that had an OEM bladder OCS, install a new OCS service kit. For additional information, refer to Occupant Classification Sensor (OCS) in the Removal and Installation portion of
Restraint Systems.

2. Install a new cushion heater mat onto a new cushion foam pad.

1. Position the heater mat wire harness through the cushion foam pad.

2. Position the cushion heater mat onto the cushion foam pad and tuck the heater mat into the foam pad trenches.
- Make sure the openings in the cushion heater mat align to the wires in the cushion foam pad.

3. Make sure the cushion heater mat stays in place, remove the paper strips from under the cushion heater mat and adhere to the cushion foam pad, laying it flat with no wrinkles.





3. Position the cushion foam pad to the cushion frame and route the heater mat wire harness.

4. At the front of the seat track, connect the cushion heater mat electrical connector and attach the wire harness retainer.

5. Install the seat cushion cover. For additional information, refer to Seat Cushion Cover - Front Seat Cushion Cover - Front.