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Removal and Replacement

SEAT CUSHION - FRONT

Exploded View


Seat Backrest - Front (Part 1):






Seat Backrest - Front (Part 2):






Seat Cushion - Driver (Part 1):






Seat Cushion - Driver (Part 2):






Seat Cushion - Front, Passenger (Part 1):






Seat Cushion - Front, Passenger (Part 2):






Special Tool(s)


Special Tool(s):






Removal and Installation

WARNING: 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.
- The passenger seat is equipped with an OCS system and is replaced as an assembly.

All seats
1. Remove the front seat.

Passenger seat

2. 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.

- If removing a production occupant classification sensor (OCS) system or an OCS system service kit, refer to the appropriate procedure in Air Bag Systems.

Disconnect the OCS wiring harness.
- For an original equipment OCS system, disconnect the OCSM and pressure sensor electrical connectors.
- For an OCS system service kit, disconnect the seat wire harness OCS electrical connector from the service part OCS electrical connector.

Heated seat
3. If equipped, disconnect the backrest heater mat electrical connector.
- Access the electrical connector by slightly pulling the wiring harness out from the backrest trim cover.

4. Disconnect and detach the cushion heater mat electrical connector.
5. Release the locking tab and remove the heated seat relay from the bracket on the cushion frame.

All seats

6. NOTE: Note wiring harness routing for installation.

Detach all wiring harness pin-type retainers from the seat cushion frame.

7. Remove the 4 front seat track bolts.
- To install, tighten to 23 Nm (17 lb-ft).

8. Remove the front seat cushion.
9. To install, reverse the removal procedure.
10. Install the front seat. If a passenger seat has been serviced, do not prove out the SRS at this time.

Passenger Seat

11. 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.

12. NOTE: The ignition switch must be cycled after the OCS system reset.

Cycle the ignition switch from ON to OFF.

All seats
13. 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.
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