Seat Cushion - Front, Passenger Side
SEAT CUSHION - FRONT, PASSENGER SIDESpecial Tool(s)
Special Tool(s):
Part 1:
Part 2:
Disassembly
WARNING:
- Never probe the electrical connectors on safety belt buckle/retractor pretensioners or adaptive load limiting retractors. Failure to follow this instruction may result in the accidental deployment of the safety belt pretensioners or adaptive load limiting retractors, which increases the risk of serious personal injury or death.
- Never probe the electrical connectors on air bag, safety canopy or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
CAUTION:
- It is necessary to carry out the occupant classification sensor (OCS) system reset when a front passenger seat cushion is disassembled, a new trim cover is installed or an OCS system service kit is installed. A scan tool is used to carry out the OCS system reset command. Failure to follow this instruction may result in system failure and the incorrect operation of the OCS system.
- Do not install a new heater mat on a front passenger seat cushion, it is not serviceable separately. If a new cushion heater mat is needed on the front passenger seat, an occupant classification sensor (OCS) system service kit equipped with a heater mat must be installed. Failure to follow this instruction may result in incorrect operation of the OCS system. Refer to Air Bag Systems for the OCS removal and installation procedure.
NOTE:
- Occupant classification sensor (OCS) system components (seat wiring harness, seat cushion foam pad, bladder with pressure sensor and occupant classification system module [OCSM]) 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, an OCS system service kit (seat cushion foam pad, bladder with pressure sensor, seat wiring harness and OCSM) must be installed as an assembly.
- To identify between a production OCS system and a OCS system service kit, inspect the OCSM electrical connector.
A production OCS system allows the disconnection of the OCSM electrical connector.
An OCS system service kit has the electrical connector glued to the module, it cannot and should not be disconnected or altered.
- The air bag warning indicator illuminates when the restraints control module (RCM) fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
All seats
1. Remove the passenger front seat.
2. Remove the seat backrest.
3. Remove the safety belt buckle pretensioner.
- Disconnect and detach the safety belt buckle pretensioner and buckle switch electrical connectors from the seat track.
- Detach the wiring harness pin-type retainer.
- Route the wiring harness from between the seat track and cushion frame.
4. NOTE: Note wiring harness routing for installation.
Detach the seat harness electrical connector and wiring harness from the seat track.
5. Remove the 4 front seat track bolts.
- To install, tighten to 23 Nm (17 lb-ft).
Heated seat
6. Disconnect and detach the cushion heater mat electrical connector.
7. Release the locking tab and remove the heated seat relay from the bracket on the cushion frame.
8. Disconnect the heated seat relay electrical connector.
Seat with an original equipment OCS system
9. WARNING: Install a new occupant classification sensor (OCS) system service kit as a complete assembly. Never install only part of the kit components. Failure to follow this instruction may result in incorrect operation of the OCS system and increases the risk of serious personal injury or death in a crash.
NOTE: To identify between a production OCS system and a OCS system service kit, inspect the OCSM electrical connector.
A production OCS system allows the disconnection of the OCSM electrical connector.
An OCS system service kit has the electrical connector glued to the module. It cannot and should not be disconnected or altered.
Disconnect the electrical connectors and wiring clips.
1 Disconnect the OCSM electrical connector.
2 Disconnect the pressure sensor electrical connector.
- Release the 2 wiring clips on the wiring harness from the cushion frame.
10. CAUTION: Use care when separating the seat cushion trim cover from the hook-and-loop strips or the hook-and-loop strips may be torn from the seat cushion foam pad.
Release the cushion trim cover retainers and remove the cushion trim cover.
- Separate the hook-and-loop strips.
11. Remove the cushion foam pad.
12. Bend the retaining tab away from the pressure sensor, then slide the pressure off the bracket.
13. CAUTION: Care must be taken to prevent damage to the seat cushion frame when removing the rivets.
Remove the 2 rivets and the OCSM.
14. Remove the 2 pin-type retainers from the OCS bladder and seat cushion frame.
15. Feed the OCS hose and pressure sensor through the seat cushion frame opening and remove as an assembly with the bladder.
Seat with an OCS system service kit
16. Disconnect the electrical connector and wiring clips.
1 Disconnect the seat wire harness OCSM electrical connector from the service part OCS electrical connector.
2 Release the 2 wiring clips on the wiring harness from the cushion frame.
17. CAUTION: Use care when separating the seat cushion trim cover from the hook-and-loop strips or the hook-and-loop strips may be torn from the seat cushion foam pad.
Release the cushion trim cover retainers and remove the cushion trim cover.
- Separate the hook-and-loop strips.
18. Bend the retaining tab away from the pressure sensor, then slide the pressure off the bracket.
19. CAUTION: Care must be taken to prevent damage to the seat cushion frame when removing the rivets.
Remove the 2 rivets and detach the OCSM from the seat cushion frame.
20. Remove the OCS.
- Pull all the OCS components (hose, pressure sensor, wire harness, OCSM and connectors) through the seat cushion frame opening.
Assembly
All seats
1. Bend the retaining tab back on the pressure sensor component bracket.
Seat with an original equipment OCS system
2. CAUTION:
- Failure to route the seat occupant classification sensor (OCS) components through the correct seat cushion support opening can cause component failure.
- While positioning the seat cushion frame and occupant classification sensor (OCS), be careful not to damage any of the components. Failure to do so can result in component failure.
Feed the OCS system components (pressure sensor and hose) through the opening in the seat cushion frame.
3. Align the OCS bladder to the seat cushion frame.
4. Install the 2 pin-type retainers to the OCS bladder and seat cushion frame.
5. NOTE: Make sure the pressure sensor hose is not kinked during installation.
Install the pressure sensor onto the seat cushion frame bracket, making sure the retaining tab is completely engaged.
- When installed correctly, an audible click will be heard and the pressure sensor will not be able to be removed from its bracket without disengaging the retaining tab.
6. Slide the OCSM into the seat cushion frame bracket and install the rivets.
- The OCSM must be correctly positioned and securely fastened in place. Failure to do so can set a DTC in the restraints control module (RCM).
7. Position the foam pad to the seat cushion frame.
8. CAUTION: Inspect the seat cushion pad and seat cushion trim cover for any foreign objects, before installing the seat cushion trim cover to the seat cushion pad. If any foreign objects are found, remove them. Failure to follow these instructions may result in incorrect operation of the occupant classification sensor (OCS) system and may cause system failure.
Install the cushion trim cover and attach the cushion trim cover retainers to the cushion frame.
9. CAUTION: While positioning the seat cushion frame and occupant classification sensor (OCS), be careful not to damage any of the components. Failure to do so can result in component failure.
Position the seat cushion to the seat track.
10. Install the 4 seat track bolts.
- To install, tighten to 23 Nm (17 lb-ft).
11. Connect the electrical connectors and wiring clips.
1 Connect the OCSM electrical connector.
2 Connect the pressure sensor electrical connector.
- Install the 2 wiring clips on the wiring harness to the cushion frame.
Seat with OCS service kit
12. CAUTION:
- Inspect the occupant classification sensor (OCS) bladder, seat cushion frame and support assembly for any foreign objects, before installing the OCS to the seat cushion frame. If any foreign objects are found, remove them. Failure to follow these instructions may result in incorrect operation of the OCS system and may cause system failure.
- Failure to route the seat occupant classification sensor (OCS) components through the correct seat cushion support opening can cause component failure.
- While positioning the seat cushion frame and occupant classification sensor (OCS), be careful not to damage any of the components. Failure to do so can result in component failure.
Feed the OCS system service kit components (hose, pressure sensor, OCSM, wire harness and connectors) through the opening in the seat cushion frame.
13. NOTE:
- When installing a service part OCS, the seat wire harness pressure sensor electrical connector is not used.
- Make sure the pressure sensor hose is not kinked during installation.
Install the OCS system components to the seat cushion pan.
1 Install the pressure sensor onto the seat cushion pan bracket, making sure the retaining tab is completely engaged.
- When installed correctly, an audible click will be heard and the pressure sensor will not be able to be removed from its bracket without disengaging the retaining tab.
2 Slide the OCSM into the seat cushion frame bracket.
- The OCSM must be correctly positioned and securely fastened in place. Failure to do so can set a DTC in the RCM.
3 Install the rivets.
14. Attach the seat cushion trim cover retainers to the seat cushion frame.
15. CAUTION: While positioning the seat cushion frame and occupant classification sensor (OCS), be careful not to damage any of the components. Failure to do so can result in component failure.
Position the seat track to the seat cushion to the seat track.
16. Install the 4 seat track bolts.
- To install, tighten to 23 Nm (17 lb-ft).
17. NOTE: Do not tie strap any wiring to the OCS bladder and pressure sensor hose.
- Connect the seat wire harness OCS system electrical connector to the service part OCS system electrical connector.
- Install the 2 wiring clips on the wiring harness to the cushion frame.
- Tie strap the unused seat wire harness pressure sensor electrical connector safely aside.
- Tie strap all loose wire harnesses and electrical connectors safety aside.
Heated seat
18. Install the heated seat relay to the bracket on the cushion frame.
19. Connect the heated seat relay electrical connector.
20. Connect the cushion heater mat electrical connector and attach to the cushion frame.
All seats
21. Attach the seat electrical connector and wiring harness to the seat track.
22. Connect the safety belt buckle pretensioner and buckle switch electrical connectors.
- Route the wiring harness between the seat track and cushion frame.
- Attach the wiring harness pin-type retainer.
23. Install the seat backrest.
24. Install the seat. Do not prove out the SRS at this time.
25. WARNING: Make sure the front passenger seat repair is complete, the seat and all attached components (head restraint, seat side shield, etc.) are correctly assembled, and the seat is correctly installed to the vehicle before carrying out the System Reset. Failure to follow these instructions may result in incorrect operation of the occupant classification sensor (OCS) system and increases the risk of serious personal injury or death in a crash.
CAUTION: To prevent system failure, the following precautions must be taken before carrying out the occupant classification sensor (OCS) system reset:
- Make sure the voltage to the occupant classification system module (OCSM) is above 8.0 volts and less than 18.0 volts.
- Make sure the OCS system is not at a temperature below 6°C (42°F) or above 36°C (97°F) when initiating the OCS system reset 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, 6°C to 36°C (42°F to 97°F) for a minimum of 30 minutes.
- Make sure nothing is present on the passenger seat before carrying out the OCS system reset and nothing is placed on the seat during the process.
- Make sure a minimum 8-second time period has passed after cycling the ignition switch ON before the carrying out the OCS system reset process.
NOTE: If the first attempt to carry out the OCS system reset is unsuccessful, a second attempt must be made. If the second attempt is unsuccessful, a new OCS system service kit must be installed.
Carry out the OCS system reset active command.
26. NOTE: The ignition switch must be cycled after the OCS system reset.
Cycle the ignition switch from ON to OFF.
27. Prove out the 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 warning indicator with the air bag modules installed. The air bag warning indicator will light continuously for approximately 6 seconds and then turn off. If an SRS fault is present, the air bag warning indicator will:
- fail to light.
- remain lit continuously.
- flash at a 5Hz rate (RCM not configured).
The air bag warning indicator may not illuminate 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 RCM to complete the testing of the SRS. If the air bag warning 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 warning indicator and any SRS fault discovered must be diagnosed and repaired.
Clear all continuous RCM and OCSM DTCs using a scan tool.