Seat Backrest - Front
SEAT BACKREST - FRONTWorldwide Diagnostic System (WDS):
Special Tool(s)
Part 1:
Part 2:
Disassembly
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.
- Carry a live side air bag module with the air bag and tear seam pointed away from your body. This will reduce the risk of injury in the event of an accidental deployment.
- Do not set a live side air bag module down on the cover tear seam. This will reduce the risk of injury in the event of an accidental deployment.
- 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.
- Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
- Side air bag modules with damaged covers must be replaced.
- To reduce the risk of personal injury, do not use any memory saver devices.
- Front seat back trim covers installed on seats equipped with side air bags cannot be repaired, they are to be replaced. Cleaning is permissible.
NOTE:
- If a side air bag deployment took place, a new side air bag module and bolt must be installed. The side air bag module bracket on the backrest frame should be inspected and replaced if necessary.
- If a seat equipped with a 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 SRS fault.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
- The manual recliners and power recliners are serviced as part of the backrest frame.
- Driver seat shown, passenger seat similar.
All seats
1. Remove the front seat and depower the supplemental restraint system (SRS).
2. Remove the front seat backrest.
Seat with side air bag
3. Detach the side air bag bolt cover.
4. NOTE: Note the position of the side air bag module locator hook in the side air bag module bracket (on the seat back frame) for installation.
Remove the bolt and lift up and out to detach the side air bag module from the seat backrest.
5. Slide and disengage the side air bag module electrical connector locking clip, and then release the tab and disconnect the side air bag module electrical connector and remove the side air bag module.
All seats
6. Detach the 2 pin-type retainers and trim cover flaps from the recliners, if equipped.
7. CAUTION: Use care when separating the backrest trim cover from the hook and loop strip, or the hook and loop strip can be torn from the backrest foam pad.
Release the outer and inner backrest trim cover lower J-clips and partially invert the trim cover to the hook and loop strips.
8. NOTE: The head restraint guides are not interchangeable. Note location for installation.
Reach up into the backrest and squeeze the head restraint guide ends together to release. Pull the 2 head restraint guides out of the backrest frame.
9. CAUTION: Use care when separating the seat back trim cover from the hook and loop strip, or the hook and loop strip can be torn from the backrest foam pad.
Remove all rows of hog rings from the backrest trim cover, if equipped and separate the hook and loop strips while inverting the trim cover up the backrest.
10. Remove the rear upper hog rings and backrest trim cover.
Heated seat
11. Detach pin-type retainer and backrest heater mat wiring harness from the backrest frame.
All seats
12. Separate the backrest foam pad from the backrest frame.
- If equipped with climate controlled seats, remove the hog rings from the upper support spring.
- If necessary, remove the backrest heater mat (if equipped) or the backrest climate controlled seat manifold (if equipped) from the foam pad.
Seat with side air bag
13. NOTE: Note the side air bag module wire harness routing for assembly.
Release the side air bag module wire harness pin-type retainers and remove the side air bag module wiring harness from the backrest frame.
All seats
14. Release the 2 lumbar spring clips from the backrest frame and remove the lumbar assembly.
- Route out the lumbar cable from the backrest frame, if equipped.
- Note the routing of the lumbar cable for installation.
- Disconnect the electrical connector from the power lumbar motor, if equipped.
Climate controlled seat
15. Disconnect the backrest thermo-electric device (TED) assembly electrical connector and detach the wiring harness retainers.
16. Remove the TED exhaust duct.
- Cut and remove the tie strap.
- Remove the retainer and separate the exhaust duct from the TED.
17. NOTE: Note the TED position on the support spring for installation. If needed, use an appropriate tool and separate the TED from the upper backrest support spring.
Disconnect the backrest upper support spring from the backrest frame and remove the spring support with the TED attached.
Seat with power recliner
18. Remove the one-way push clip on the RH side of the power recliner. Slide the recliner shaft out from the LH side of the seat enough to clear the RH recliner and power recline motor.
19. Disconnect the electrical connector, remove the bolt and the power recline motor.
Seat with side air bag
20. Remove the 2 nuts and side air bag mounting bracket.
All seats
21. Detach any pin-type retainers, route out and remove the wiring harness, if equipped.
Assembly
All seats
1. Route and install the backrest wiring harness, if removed.
Seat with side air bag
2. Install the side air bag mounting bracket and 2 nuts, if removed.
- Tighten to 6 Nm (53 lb-in).
Seat with power recliner
3. NOTE: The recliners are synchronized. Avoid rotating the recliner shaft until fully installed.
Install the recliner motor.
1 Position the recliner shaft through the recliner motor and RH recliner.
2 Install a new one-way push clip onto the recliner shaft at the RH recliner.
3 Slightly turn the recliner motor to align the bolt hole with the hole in the RH recliner and install the recliner motor bolt.
- Tighten to 6 Nm (53 lb-in).
4 Connect the recliner motor electrical connector.
Climate controlled seat
4. NOTE: Before assembly, inspect the climate controlled seat components for damage, crush, obstruction and debris and repair as needed.
Install the upper support spring and TED assembly to the backrest frame.
- Attach the TED and bracket to the backrest upper support spring as noted in disassembly, if removed.
5. Connect the exhaust duct to the TED and install a new tie strap.
6. Connect the TED electrical connector.
All seats
7. Attach the lumbar assembly spring clips and install the lumbar assembly to the backrest frame.
- Route the lumbar cable to the backrest as in disassembly, if equipped.
- Connect the power lumbar motor electrical connector, if equipped.
Seat with side air bag
8. Install the side air bag wiring harness.
- Route the side air bag wiring harness to the backrest frame as noted in disassembly and install the pushpin-type retainers.
All seats
9. Position the backrest foam pad to the backrest frame.
- If removed, install a new backrest heater mat.
- For installation, peel away the paper from the adhesive strips, align and apply the new heater mat to the backrest foam pad being sure to tuck the heater mat into the foam pad creases.
- The heater mat must lay flat on the foam pad with no wrinkles.
Climate controlled seat
10. NOTE: Inspect the climate controlled seat backrest manifold for crush and obstruction before installation.
If damaged, install a new backrest manifold. If removed, align the backrest manifold and insert into the valleys of the foam pad.
- Check for correct fit between the manifold, foam pad and TED assembly, to make sure there is no air flow obstruction or cushion crush.
11. Install new hog rings to the upper support spring and foam pad.
All seats
12. NOTE: A backrest trim cover for a seat with a side air bag module is different than a backrest trim cover for a seat without a side air bag module. Make sure the correct backrest trim cover is being installed.
Position the backrest trim cover to the backrest frame and foam pad and install new rear upper hog rings to the backrest frame.
13. Roll the backrest trim cover downward and attach the hook and loop strips.
- If removed, install new hog rings as noted during disassembly.
14. NOTE: The head restraint guides are keyed to the backrest frame and are not interchangeable.
Install the 2 head restraint guides to the backrest.
15. Connect the inner and outer backrest trim cover J-strips.
16. Install the 2 pin-type retainers and trim cover flaps to the recliners, if equipped.
Seat with side air bag
17. WARNING:
- If the air bag cover has separated or the air bag material has been exposed, install a new side air bag module. Do not attempt to repair the air bag module. Failure to do so may result in personal injury in the event of an air bag deployment.
- Inspect the mounting surfaces of the side air bag module for any foreign objects before installing the side air bag module. 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.
Connect the side air bag module electrical connector and then slide and engage the side air bag electrical connector locking clip.
18. Install the side air bag module to the mounting bracket on the backrest frame.
- Position the side air bag module locator hook in the side air bag bracket the seat back frame.
19. Align the bolt hole and install the side air bag bolt.
- Tighten to 10 Nm (89 lb-in).
20. Install the side air bag bolt cover.
All seats
21. Install the front seat backrest.
22. Install the front seat and repower the SRS. If a passenger seat has been serviced, do not prove out the SRS at this time.
Passenger seat
23. Carry out the Zero Seat Weight Test and prove out the SRS. Zero Seat Weight Test