Seat Cushion - Front, Passenger Side
Seat Cushion - Front, Passenger Side
NOTE: Seat equipped with a production Occupant Classification System (OCS) system shown. For OCS system service components, refer to Occupant Classification Sensor - Service Kit procedure in Supplemental Restraint System Occupant Classification Sensor - Service Kit.
Disassembly
NOTICE: To prevent system failure, it is necessary to carry out the Occupant Classification System (OCS) system reset when a front passenger seat cushion is disassembled, a new trim cover installed or an OCS system service kit is installed. A scan tool is used to carry out the OCS system reset command.
NOTICE: 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 System (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 Supplemental Restraint System Seat Occupant Sensor for the OCS removal and installation procedure.
NOTE: Occupant Classification System (OCS) system components, 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, a new OCS system service kit (seat cushion foam pad, bladder with pressure sensor and OCSM) must be installed as an assembly.
All seats
1. Remove the seat. For additional information, refer to Seat - Front Seat - Front.
2. Remove the seat backrest. For additional information, refer to Seat Backrest - Front Seat Backrest - Front.
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 seat track-to-cushion frame bolts.
6. If equipped, disconnect the heated seat system components.
- Disconnect and detach the cushion heater mat electrical connector.
- Release the locking tab and remove the heated seat relay from the bracket on the cushion frame.
- Disconnect the heated seat relay electrical connector.
Seat with original equipment Occupant Classification System (OCS) system
7. WARNING: Occupant classification system(OCS) parts are calibrated as an assembly and must only be replaced in the configuration they are sold. Never separate parts of an assembly. Failure to follow this instruction may result in incorrect operation of the OCS and increases the risk of serious personal injury or death in a crash.
NOTE: To identify between a production OCS system and a service OCS system (OCS service kit), inspect the electrical connector. A production OCS system allows the disconnect of the OCSM electrical connector. A service OCS system (OCS service kit) has the electrical connector glued to the OCSM. 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.
- Detach the wiring harness retainers and wiring harness from the cushion frame.
8. NOTICE: 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 all cushion cover retainers and remove the cushion cover.
9. Remove the cushion foam pad.
10. Bend the retaining tab away from the pressure sensor, then slide the pressure sensor off the bracket.
11. NOTICE: Care must be taken to prevent damage to the seat cushion frame when removing the rivets.
Remove the 2 rivets and the OCSM.
12. Remove the 2 pin-type retainers from the OCS bladder and seat cushion frame.
13. Feed the OCS hose and pressure sensor through the seat cushion frame opening and remove as an assembly with the bladder.
Seat with OCS system service kit
14. Disconnect the electrical connector and wiring clips in the following sequence.
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.
15. NOTICE: 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 all cushion cover retainers and remove the cushion cover.
16. Bend the retaining tab away from the pressure sensor, then slide the pressure sensor off the bracket.
17. NOTICE: 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.
18. 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 original equipment OCS system
2. NOTICE: Failure to route the seat Occupant Classification System (OCS) components through the correct seat cushion support opening can cause component failure.
NOTICE: While positioning the seat cushion frame and Occupant Classification System (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. NOTICE: 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 System (OCS) system and may cause system failure.
Install the cushion cover and attach the retainers to the cushion frame.
9. NOTICE: While positioning the seat cushion frame and Occupant Classification System (OCS), be careful not to damage any of the components. Failure to do so can result in component failure.
Position the seat cushion assembly to the seat track and install the 4 seat track-to-cushion frame bolts.
- Tighten to 25 Nm (18 lb-ft).
10. Install the wiring harness.
1. Connect the OCSM electrical connector.
2. Connect the pressure sensor electrical connector.
- Attach the wiring harness to the cushion frame.
Seat with OCS system service kit
11. NOTICE: Inspect the Occupant Classification System (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.
NOTICE: Failure to route the seat Occupant Classification System (OCS) components through the correct seat cushion support opening can cause component failure.
NOTICE: While positioning the seat cushion frame and Occupant Classification System (OCS), be careful not to damage any of the components. Failure to do so can result in component failure.
Route the OCS system service kit components (hose, pressure sensor, OCSM, wire harness and connectors) through the opening in the seat cushion frame.
12. NOTE: When installing a service part OCS, the seat wire harness pressure sensor electrical connector is not used.
NOTE: Make sure the pressure sensor hose is not kinked during installation.
Install the OCS system components to the seat cushion frame.
1. 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.
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.
13. Install the cushion cover and attach the retainers to the seat cushion frame.
14. NOTICE: While positioning the seat cushion frame and Occupant Classification System (OCS), be careful not to damage any of the components. Failure to do so can result in component failure.
Position the seat cushion assembly to the seat track and install the 4 seat track-to-cushion frame bolts.
- Tighten to 25 Nm (18 lb-ft).
15. 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.
All seats
16. If equipped, connect the heated seat components.
- Install the heated seat relay to the bracket on the cushion frame.
- Connect the heated seat relay electrical connector.
- Connect the cushion heater mat electrical connector and attach to the cushion frame.
17. Attach the seat electrical connector and wiring harness to the seat track.
18. 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.
19. Install the seat backrest. For additional information, refer to Seat Backrest - Front Seat Backrest - Front.
20. Install the seat. Do not prove out the Supplemental Restraint System (SRS) at this time. For additional information, refer to Seat - Front Seat - Front.
21. 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 system (OCS) and increases the risk of serious personal injury or death in a crash.
WARNING: Occupant classification system(OCS) parts are calibrated as an assembly and must only be replaced in the configuration they are sold. Never separate parts of an assembly. Failure to follow this instruction may result in incorrect operation of the OCS and increases the risk of serious personal injury or death in a crash.
NOTICE: To prevent system failure, the following precautions must be taken before carrying out the Occupant Classification System (OCS) system reset:
- Make sure the voltage to the Occupant Classification System Module (OCSM) is above 8 volts and less than 18 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 carrying out the OCS system reset process.
Carry out the OCS system reset.
22. If the first system reset attempt was unsuccessful, carry out a thorough visual inspection of the following and repair any concerns found.
- OCS system connector and wiring for damage
- Pressure sensor hose for kinks and/or damage
- Seat-related wiring harness and body wiring harness terminals and connectors for damage
23. NOTE: The ignition switch must be cycled after the OCS system reset.
Carry out a second OCS system reset. If the second attempt is unsuccessful, install a new OCS system service kit. For additional information, refer to Occupant Classification System Service Kit in Supplemental Restraint System Occupant Classification Sensor - Service Kit.
24. 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 air bag SRS fault is detected, the air bag warning 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 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 DTCs from the RCM and OCSM using a scan tool.