Front Seat Cushion - Passenger

WARNING: This page is about a different car, the 2004 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag module. This will reduce the risk of injury in the event of an accidental deployment.

WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.

WARNING: The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.

WARNING: To reduce the risk of personal injury, do not use any memory saver devices.

WARNING: After deployment, the air bag surface can contain deposits of sodium hydroxide, a product of the gas generant combustion that is irritating to the skin. Wash your hands with soap and water afterwards.

WARNING: To reduce the risk of personal injury, do not use any memory saver devices.

CAUTION: Do not handle or lift the seat by the inboard side shield or a torque tube (seat track motor cable and housing). Care must be taken when handling or lifting the seat to prevent damage.

NOTE: The occupant classification sensor is found only on the front passenger seat and is not equipped on all vehicles. A white tag having the letters "OCS" (occupant classification sensor) will appear under the front of the passenger seat to identify a seat equipped with an occupant classification sensor.

NOTE: If a side air bag deployment took place, the seatback pad, trim cover and side air bag module must be replaced. The seatback frame should be replaced if necessary.

NOTE: If a seat equipped with a supplemental restraint system (SRS) component is being serviced, the SRS must be depowered.

NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.

NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

Remove the passenger seat and depower the SRS. For additional information, refer to DRIVER SEAT .
- When servicing only the power seat switch or power lumbar switch, depower the SRS. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of AIR BAG RESTRAINT SYSTEMS .

Disassemble the parts in the order listed in the following illustration and table.

To remove individual parts, only carry out the listed steps:

PARTS REMOVING STEPS

Part	Steps
Front seat backrest	1-21
Front seat cushion trim cover	1-30
Safety belt buckle	13-15
Power seat switch	1-12
Power lumbar switch	1-7
Climate controlled seat module	28,29
Seat track, power seat motors	1-22
Lower ventilation air blower assembly	1-26
Climate controlled seat cushion duct	1-31

Fig 1: Identifying Removing Sequence Of Front Seat Cushion - Passenger (1 Of 2)

Courtesy of FORD MOTOR CO.

Fig 2: Identifying Removing Sequence Of Front Seat Cushion - Passenger (2 Of 2)

Courtesy of FORD MOTOR CO.

To assemble, reverse the disassembly procedure.
Install the passenger seat and repower the SRS. Do not prove out the SRS at this time . For additional information, refer to DRIVER SEAT .

CAUTION: The following precautions must be taken before rezeroing of the OCS system:

Make sure the OCS system components are connected and no faults are present.
Make sure the vehicle has not been exposed to temperatures below 6°C (42°F) or above 36 °C (97°F) within four hours prior to the rezeroing process. If the vehicle has been exposed to temperatures outside the temperature limits (6-36 °C [42-97°F]), the vehicle must be exposed to and kept at a temperature within the limits for a minimum of four hours.
Make sure nothing is present on the passenger seat before rezeroing and nothing is placed on the seat during the rezeroing process.
Make sure a minimum five second time period has passed after cycling the ignition switch ON before the rezeroing process.

NOTE: It is necessary to rezero the OCS system when a front passenger seat cushion is disassembled, a new trim cover installed, or an OCS service kit is installed. A scan tool is used to trigger the active command to carry out rezeroing of the OCS system.

NOTE: When using a New Generation Star (NGS) tester, the OCS system rezero function is on the Ford Service Function (red) card. To rezero the OCS system:

select SERVICE BAY FUNCTIONS
select RCM
select SYSTEM RESET
select the vehicle from the menu
view the on-screen information then press TRIGGER

NOTE: To rezero the OCS system using the Worldwide Diagnostic System (WDS):

select the Toolbox icon
select Body from the menu
select Restraints from the menu
select Seat Weight Sensor ReZero

NOTE: If the first attempt to rezero the OCS system is unsuccessful, a second attempt must be made.

NOTE: The ignition switch must be cycled after rezeroing the OCS system.

The NGS screen will then display OCS RESET: REZERO. Press DONE (button 8) to rezero the OCS system. The NGS will return the vehicle menu once rezeroing of the OCS system is complete.
After selecting "Seat Weight Sensor ReZero, follow the on-screen prompts to carry out rezeroing of the OCS system.

For vehicles equipped with an occupant classification sensor (OCS), rezero the OCS.
- With the front passenger seat empty, use a scan tool to trigger the active command and rezero the occupant classification sensor.

NOTE: The ignition switch must be cycled after rezeroing the OCS system.

Prove out the supplemental restraint system (SRS) as follows:
Turn the ignition key from ON to OFF. Wait 10 seconds, then turn the key back to ON and visually monitor the air bag indicator with the air bag modules installed. The air bag indicator will light continuously for approximately six seconds and then turn off. If an air bag supplemental restraint system (SRS) fault is present, the air bag indicator will either:
- fail to light.
- remain lit continuously.
- flash.
The flashing might not occur until approximately 30 seconds after the ignition switch has been turned from the OFF to the ON position. This is the time required for the restraints control module (RCM) to complete the testing of the SRS. If the air bag indicator is inoperative and a SRS fault exists, a chime will sound in a pattern of five sets of five beeps. If this occurs, the air bag indicator and any SRS fault discovered must be diagnosed and repaired.

Clear all continuous DTCs from the restraints control module using a scan tool.

Item 8: Side Shield Screw Disassembly Note

Remove the screw from behind the bezel.

Fig 3: Removing Screw From Behind Bezel

Courtesy of FORD MOTOR CO.

Item 18: Manual Lumbar Adjuster Disassembly Note

Release the manual lumbar adjustment screw.
1. From inside the lumbar adjustment mechanism, push the screw stop in toward the center.
2. While pushing the screw stop toward the center, rotate the lumbar adjustment mechanism counterclockwise.
3. The screw stop will pass clear of the internal stop, releasing the manual lumbar adjustment screw.
  
  Fig 4: Releasing Manual Lumbar Adjustment Screw
  Courtesy of FORD MOTOR CO.
Remove the manual lumbar cable.
1. Continue turning the manual lumbar mechanism counterclockwise until the cable support comes out.
2. Push the screw out enough to remove the cable end.
  
  Fig 5: Removing Manual Lumbar Cable
  Courtesy of FORD MOTOR CO.
Route the manual lumbar adjuster cable out from the seat cushion frame.

Item 19: Power Seat Track Nut Disassembly Note

Remove the seat track and the nuts.
1. Detach the wire harness retainer from the seat track-to-cushion stud.
2. Remove the four seat track-to-cushion nuts (three shown).
3. Remove the seat track.
  
  Fig 6: Removing Seat Track And Nuts
  Courtesy of FORD MOTOR CO.

Item 24: Connector Disassembly Note

Separate the connectors from the seat cushion frame.

Fig 7: Separating Connectors From Seat Cushion Frame
Courtesy of FORD MOTOR CO.

Item 30: Seat Cushion Trim Cover Disassembly Note

Remove the seat cushion frame, trim cover, foam pad and occupant classification sensor as an assembly.
Separate the seat cushion trim cover retainers.
- Vehicles with an original equipment occupant classification sensor, remove the seat cushion trim cover retainers and separate the seat cushion pad and trim cover from the seat cushion frame.
- Vehicles with a service part occupant classification sensor, remove the seat cushion trim cover retainers from the seat cushion frame.
  
  Fig 8: Separating Seat Cushion Trim Cover Retainers
  Courtesy of FORD MOTOR CO.

Item 32: Occupant Classification Sensor Disassembly Note

Vehicles equipped with an original equipment occupant classification sensor (OCS), remove the pin-type retainers.

Fig 9: Removing Pin-Type Retainers
Courtesy of FORD MOTOR CO.
Vehicles equipped with OCS, release the pressure sensor retainer.
- Vehicles with an original equipment occupant classification sensor, fold the bladder away and pry up, releasing the pressure sensor retainer.
- Vehicles with a service part occupant classification sensor, fold the seat cushion pad and bladder away and pry up, releasing the pressure sensor retainer.
  
  Fig 10: Releasing Pressure Sensor Retainer
  Courtesy of FORD MOTOR CO.
Remove the climate control components.
1. Remove the screws.
2. Separate the wire harness from the seat cushion pan.
3. Separate the climate control duct and remove the assembly.
  
  Fig 11: Removing Climate Control Components
  Courtesy of FORD MOTOR CO.
If equipped, remove the occupant classification sensor (OCS).
1. Remove the screws.
2. Separate the pressure sensor.
3. Separate the wire harness from the seat cushion pan.
4. Route the OCS components back through the seat cushion pan and remove the assembly.
  
  Fig 12: Removing Occupant Classification Sensor (OCS)
  Courtesy of FORD MOTOR CO.

CAUTION: If replacing only the front passenger seat cushion trim cover, the occupant classification sensor must be rezeroed.

Separate the trim cover from the seat cushion pad.

Item 32: Occupant Classification Sensor Assembly Note

Vehicles equipped with OCS, bend the pressure sensor retaining tab back.

Fig 13: Bending Pressure Sensor Retaining Tab
Courtesy of FORD MOTOR CO.

CAUTION: Inspect the occupant classification sensor assembly and seat cushion frame for any foreign objects before installing the occupant classification sensor assembly to the seat cushion frame. If any foreign objects are found, remove them. Failure to do so may result in personal injury, in the event of an air bag deployment.

Fig 14: Installing Pressure Sensor Onto Bracket

Courtesy of FORD MOTOR CO.

If equipped, install the OCS.
1. Feed the OCS components back through the cushion pan opening.
2. Position the electronic control unit and install the screws.
3. Route the wire harness and install the pin-type retainers.
4. Install the pressure sensor onto the bracket.
Install the climate control component.
1. Position the climate control component into the duct and tie strap it in place.
2. Install the screws.
3. Route the wire harness and install the pin-type retainer to the seat cushion pan.
  
  Fig 15: Installing Climate Control Component
  Courtesy of FORD MOTOR CO.

Fig 16: Installing Pin-Type Retainers

Courtesy of FORD MOTOR CO.

Vehicles having the original occupant classification sensor installed, position the bladder and install the pin-type retainers.

CAUTION: Inspect the seat cushion pad and seat cushion trim cover for any foreign objects, before installing the seat trim cover to the seat cushion pad. If any foreign objects are found, remove them. Failure to do so may result in personal injury, in the event of an air bag deployment.

CAUTION: If replacing only the front passenger seat cushion trim cover, the occupant classification sensor must be rezeroed.

Install the cushion trim cover to the cushion foam pad.

CAUTION: Inspect the seat cushion frame and seat cushion pad for any foreign objects before installing the cushion pad and trim cover assembly to the seat cushion frame. If any foreign objects are found, remove them. Failure to do so may result in personal injury, in the event of an air bag deployment.

Attach the seat cushion trim cover retainers to the seat cushion frame.
- Vehicles having a service part occupant classification sensor installed, position the seat cushion trim cover with foam pad and OCS bladder to the seat cushion frame and attach the trim cover to the frame.
- Vehicles having the original occupant classification sensor installed, position the seat cushion trim cover with foam pad to the seat cushion frame and attach the trim cover to the frame.
  
  Fig 17: Attaching Seat Cushion Trim Cover Retainers To Seat Cushion Frame
  Courtesy of FORD MOTOR CO.

Item 31: Climate Controlled Seat Cushion Duct Assembly Note

NOTE: Some vehicles may exhibit a condition where one or both climate controlled seats turn OFF shortly after initialization with CCSM DTC(s) present. If this condition exists, a climate controlled seat modification may be required. Inspect the climate controlled seat for airflow restrictions due to seat cushion crush or seat cushion duct damage. Repair the climate controlled seat cushion duct and lower ventilation air blower assembly as indicated in this procedure.

NOTE: Inspect the climate controlled seat cushion duct for damage or collapse, especially near the duct-to-thermo electric device (TED) connection, and install a new seat cushion duct (19N550) if needed.

Install the climate controlled seat cushion duct to the cushion foam pad.

Item 26: Lower Ventilation Air Blower Assembly Assembly Note

Install the lower ventilation air blower assembly to the seat cushion pan.
1. If equipped with a duct extension attached to the TED (as shown) and the climate controlled seat cushion duct is damaged or restricted, remove the riser extension and screw and discard. Do not install a new riser extension.
2. Install the lower ventilation air blower assembly to the seat cushion pan.
  
  Fig 18: Installing Lower Ventilation Air Blower Assembly To Seat Cushion Pan
  Courtesy of FORD MOTOR CO.