Seat Cushion - Front, Passenger Side
Seat Cushion - Front, Passenger Side
NOTE: Seat equipped with a production Occupant Classification Sensor (OCS) system shown. For OCS (Occupant Classification Sensor) system service components, refer to Occupant Classification Sensor - Service Kit procedure in Restraints and Safety Systems &/or Air Bag Systems.
Disassembly
NOTICE: To prevent system failure, 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 installed or an OCS (Occupant Classification Sensor) system service kit is installed. A scan tool is used to carry out the OCS (Occupant Classification Sensor) 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 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 (Occupant Classification Sensor) system. Refer to Restraints and Safety Systems &/or Air Bag Systems for the OCS (Occupant Classification Sensor) removal and installation procedure.
NOTE: Occupant Classification Sensor (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 (Occupant Classification Sensor) system components are not to be installed separately. If a new OCS (Occupant Classification Sensor) system, OCS (Occupant Classification Sensor) system component or seat cushion foam pad are needed, a new OCS (Occupant Classification Sensor) system service kit (seat cushion foam pad, bladder with pressure sensor and OCSM (Occupant Classification System Module)) 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 Sensor (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 (Occupant Classification Sensor) system and a service OCS (Occupant Classification Sensor) system (OCS (Occupant Classification Sensor) service kit), inspect the electrical connector.
A production OCS (Occupant Classification Sensor) system allows the disconnect of the OCSM (Occupant Classification System Module) electrical connector. A service OCS (Occupant Classification Sensor) system (OCS (Occupant Classification Sensor) service kit) has the electrical connector glued to the OCSM (Occupant Classification System Module). It cannot and should not be disconnected or altered.
Disconnect the electrical connectors and wiring clips.
1. Disconnect the OCSM (Occupant Classification System Module) 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 (Occupant Classification System Module).
12. Remove the 2 pin-type retainers from the OCS (Occupant Classification Sensor) bladder and seat cushion frame.
13. Feed the OCS (Occupant Classification Sensor) hose and pressure sensor through the seat cushion frame opening and remove as an assembly with the bladder.
Seat with OCS (Occupant Classification Sensor) system service kit
14. Disconnect the electrical connector and wiring clips in the following sequence.
1. Disconnect the seat wire harness OCSM (Occupant Classification System Module) electrical connector from the service part OCS (Occupant Classification Sensor) 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 (Occupant Classification System Module) from the seat cushion frame.
18. Remove the OCS (Occupant Classification Sensor).
- Pull all the OCS (Occupant Classification Sensor) components (hose, pressure sensor, wire harness, OCSM (Occupant Classification System Module) 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 (Occupant Classification Sensor) system
2. NOTICE: Failure to route the seat Occupant Classification Sensor (OCS) components through the correct seat cushion support opening can cause component failure.
NOTICE: 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 (Occupant Classification Sensor) system components (pressure sensor and hose) through the opening in the seat cushion frame.
3. Align the OCS (Occupant Classification Sensor) bladder to the seat cushion frame.
4. Install the 2 pin-type retainers to the OCS (Occupant Classification Sensor) 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 (Occupant Classification System Module) into the seat cushion frame bracket and install the rivets.
- The OCSM (Occupant Classification System Module) 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 Sensor (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 Sensor (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 (Occupant Classification System Module) electrical connector.
2. Connect the pressure sensor electrical connector.
- Attach the wiring harness to the cushion frame.
Seat with OCS (Occupant Classification Sensor) system service kit
11. NOTICE: Inspect the Occupant Classification Sensor (OCS) bladder, seat cushion frame and support assembly for any foreign objects, before installing the OCS (Occupant Classification Sensor) 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 (Occupant Classification Sensor) system and may cause system failure.
NOTICE: Failure to route the seat Occupant Classification Sensor (OCS) components through the correct seat cushion support opening can cause component failure.
NOTICE: 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.
Route the OCS (Occupant Classification Sensor) system service kit components (hose, pressure sensor, OCSM (Occupant Classification System Module), wire harness and connectors) through the opening in the seat cushion frame.
12. NOTE: When installing a service part OCS (Occupant Classification Sensor), 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 (Occupant Classification Sensor) 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 (Occupant Classification System Module) into the seat cushion frame bracket.
- The OCSM (Occupant Classification System Module) must be correctly positioned and securely fastened in place. Failure to do so can set a DTC in the RCM (Restraints Control Module).
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 Sensor (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 (Occupant Classification Sensor) bladder and pressure sensor hose.
- Connect the seat wire harness OCS (Occupant Classification Sensor) system electrical connector to the service part OCS (Occupant Classification Sensor) 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 Sensor (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 (Occupant Classification Sensor) system is not at a temperature below 6°C (42°F) or above 36°C (97°F) when initiating the OCS (Occupant Classification Sensor) 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 (Occupant Classification Sensor) 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 (Occupant Classification Sensor) system reset process.
Carry out the OCS (Occupant Classification Sensor) 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 (Occupant Classification Sensor) 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 (Occupant Classification Sensor) system reset.
Carry out a second OCS (Occupant Classification Sensor) system reset. If the second attempt is unsuccessful, install a new OCS (Occupant Classification Sensor) system service kit. For additional information, refer to Occupant Classification System Service Kit in Restraints and Safety Systems &/or Air Bag Systems.
24. Prove out the SRS (Supplemental Restraint System) 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 (Supplemental Restraint System) 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 (Restraints Control Module) to complete the testing of the SRS (Supplemental Restraint System). If the air bag warning indicator is inoperative and a SRS (Supplemental Restraint System) 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 (Supplemental Restraint System) fault discovered must be diagnosed and repaired.
Clear all continuous DTCs from the RCM (Restraints Control Module) and OCSM (Occupant Classification System Module) using a scan tool.