Seat Cushion - Front, Passenger Side
SEAT CUSHION - FRONT, PASSENGER SIDESpecial Tool(s):
Special Tool(s)
Part 1:
Part 2:
Disassembly
WARNING:
- The safety belt pretensioner is a pyrotechnic device. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.
- Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
- To reduce the risk of personal injury, do not use any memory saver devices.
CAUTION: If replacing only the front passenger seat cushion trim cover, the occupant classification sensor must be rezeroed.
NOTE:
- If a seat equipped with a supplemental restraint system (SRS) component is being serviced, the SRS must be depowered.
- 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.
- Occupant classification sensor (OCS) system components (seat cushion foam pad, bladder with pressure sensor and electronic control unit) are calibrated to each other and are serviced as an assembly. The OCS system components are not to be installed separately. If a new OCS system, OCS system component or seat cushion foam pad are needed, a new OCS system service kit (seat cushion foam pad, bladder with pressure sensor and electronic control unit) must be installed as an assembly.
- To identify between a production OCS system and a service OCS system (OCS service kit) inspect the electronic control unit (ECU) electrical connector. A production OCS system allows the disconnect of the ECU electrical connector. A service OCS system (OCS service kit) has the ECU electrical connector glued to the ECU, it cannot and should not be disconnected or altered.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
- Repair is made by installing a new part only. If the new part does not correct the condition, install the original part and perform the scan procedure again.
- When installing a new occupant classification sensor (OCS) service kit, refer to Air Bag Systems for the OCS service kit installation procedure.
- Power seat shown, manual seat similar.
All seats
1. Remove the passenger seat and depower the SRS.
2. Remove the seat control knob, if equipped.
3. Release the recliner handle cover tab and remove the handle.
4. Remove the RH side shield screw from behind the recliner handle.
5. Remove the front and rear RH side shield screws, disconnect the seat control switch (if equipped) and remove the RH side shield.
6. Remove the 2 LH side shield screws and remove the LH side shield.
7. Disconnect and detach the seat side air bag electrical connector, if equipped and route through the seat cushion frame for backrest removal, noting the routing for installation.
Climate controlled seats
8. Detach and disconnect the backrest thermo-electric device (TED) electrical connector and disconnect the backrest climate controlled seat duct from the seat fan motor for backrest removal.
Heated seats
9. NOTE: Disconnect and release any remaining electrical connectors and pin-type retainers attached to the seat cushion and frame assembly.
Disconnect the 2 heater mat electrical connectors from the backrest heater mat.
All seats
10. Disconnect the safety belt buckle pretensioner electrical connectors.
11. Remove the bolt and the safety belt buckle pretensioner.
- To install, tighten to 40 Nm (30 lb-ft).
12. Remove the backrest-to-seat track bolts (3 bolts manual seat, 4 bolts power seat) and remove the seat backrest from the seat cushion.
- To install, tighten to 58 Nm (43 lb-ft).
13. NOTE: Disconnect and release any remaining electrical connectors and pin-type retainers necessary to separate the seat cushion pan from the seat track and riser.
Remove the 4 seat track-to-seat cushion frame bolts and remove the seat cushion.
- To install, tighten to 25 Nm (18 lb-ft).
14. Release the J-clips.
15. Remove the seat cushion hog rings, if equipped and remove the seat cushion trim cover.
16. CAUTION: When removing the passenger seat cushion foam pad when equipped with an OCS service kit, refer to Air Bag Systems.
Remove the seat cushion foam pad from the seat cushion frame.
Heated seats
17. Disconnect and remove the heated seat module.
18. If necessary, carefully remove the cushion heater mat from the seat cushion foam pad.
Climate controlled seats
19. Remove the screw and the seat cushion TED bezel.
20. Disconnect and remove the seat cushion TED and climate controlled seat duct.
21. Disconnect the seat fan motor electrical connector.
22. Remove the 3 screws and the seat fan motor.
23. Disconnect the climate controlled seat module electrical connector.
24. Remove the 2 screws and the climate controlled seat module.
All seats
25. To assemble, reverse the disassembly procedure.
26. Install the passenger seat and repower the SRS. Do not prove out the SRS at this time.
27. CAUTION:
- There are 3 occupant classification sensor (OCS) system service kits available for this vehicle (base seat, heated seat and climate controlled seat). Always make sure the correct OCS service kit is installed.
- It is necessary to rezero the OCS system when a front passenger seat cushion is disassembled, a new trim cover installed, a seat side shield removed 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.
- Make sure the seat is completely assembled before rezeroing.
- The following precautions must be taken before rezeroing the OCS system:
- Make sure the OCS system components are connected and no faults are present.
- Make sure the OCS system is not at a temperature below 0 °C (32°F) or above 45°C (113°F) when initiating the rezeroing process. If the vehicle has been exposed to extreme cold or hot temperatures, the vehicle must be exposed and kept at a temperature within the limits, 0°C to 45°C (32°F to 113°F) for a minimum of 30 minutes.
- 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 8 second time period has passed after cycling the ignition switch ON before the rezeroing process.
NOTE:
- For best results in rezeroing, the OCS system should be at or near room temperature, 10°C to 29°C (50°F to 85°F).
- The heater mat on the front passenger seat cushion is not serviceable separately. If a new heater mat is needed on the front passenger seat cushion a new occupant classification sensor (OCS) service kit, equipped with a heater mat, must be installed.
- If the first attempt to rezero the OCS system is unsuccessful, a second attempt must be made.
Rezero the occupant classification sensor.
- With the front passenger seat empty, use a scan tool to trigger the active command and rezero the occupant classification sensor.
28. NOTE: The ignition switch must be cycled after rezeroing the OCS system.
Cycle the ignition switch from ON to OFF.
29. 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 6 seconds and then turn off. If an air bag supplemental restraint system (SRS) fault is present, the air bag indicator will:
- 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 5 sets of 5 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.