Removal and Installation

AIR BAG MODULE(S) AND CLOCK SPRING

REMOVAL AND INSTALLATION

WARNING
- Never attempt to disassemble or repair the air bag modules or clock spring. If faulty, replace it.
- Do not drop the air bag modules or clock spring or allow contact with water, grease or oil. Replace it if a dent, crack, deformation or rust is detected.
- The air bag modules should be stored on a flat surface with the pad cover facing upward. Do not place anything on top of it.
- Do not expose the air bag modules to temperatures over 93 °C (200 °F).
- After deployment of an air bag, replace the clock spring with a new one.
- Wear gloves and safety glasses when handling air bags that have already deployed.
- An undeployed air bag module should only be disposed of in accordance with the procedures.
- When removing and installing the front passenger seat, be sure to carry out accuracy check of the occupant classification sensor after the seat has been installed in the vehicle (On-Vehicle Service).

SIDE-AIRBAG MODULE
For removal and installation of the front seatback assembly with side-airbag module, refer to Interior Front Seat.

Removal Steps 1-9 (Part 1):

Removal Steps 1-9 (Part 2):

Removal Steps 1-2:

Required Special Tools:
- MB991958 Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicle Communication Interface(V.C.I.)
- MB991827 M.U.T.-III USB Cable
- MB991910 M.U.T.-III Main Harness A

REMOVAL SERVICE POINTS

[[A]] NEGATIVE (-) BATTERY CABLE DISCONNECTION

DANGER : Wait at least 60 seconds after disconnecting the battery cable before doing any further work.

WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.




Disconnect the negative (-) battery cable from the battery and tape the terminal to prevent accidental connection and air bag(s) deployment.

[[B]] COVER REMOVAL




Insert Special tool MB990784 into the notch shown in the figure, and remove the cover.

[[C]] driver's AIR BAG MODULE CONNECTOR REMOVAL




Slide the outer housing of the driver's air bag module connector in the arrow direction shown, and disconnect the connector.

[[D]] AIR BAG MODULE ASSEMBLY REMOVAL

WARNING
- The air bag module must not be measured with such equipment as an ohmmeter.
- The air bag module must not be disassembled.
- The removed air bag module should be stored in a clean, dry place with the deployment surface facing up.




Using t-type long torx wrench (T30), a torx screw is loosened completely and removed.

[[E]] STEERING WHEEL ASSEMBLY REMOVAL




Use special tool MB990803 to remove the steering wheel.

[[F]] CLOCK SPRING REMOVAL

WARNING: The removed clock spring should be stored in a clean, dry place.

[[G]] PASSENGER'S (FRONT) AIR BAG MODULE CONNECTOR REMOVAL




1. Remove the grove box cover.(Refer to Interior Glove Box)
2. Slide the outer housing of the Passenger's (front) air bag module connector in the arrow direction shown, and disconnect the connector.

[[H]] PASSENGER'S (FRONT) AIR BAG MODULE REMOVAL

WARNING
- The air bag module must not be measured with such equipment as an ohmmeter.
- The air bag module must not be disassembled.
- The removed air bag module should be stored in a clean, dry place with the deployment surface facing up.




Insert a flat-tipped screwdriver or similar tool to the location shown in the figure. After disengaging the tabs, remove the passenger's (front) air bag module.

INSTALLATION SERVICE POINTS

]]A[[ PRE-INSTALLATION INSPECTION

WARNING: Dispose of air bag modules only according to the specified procedure.

1. When installing the new air bag modules and clock spring, refer to "INSPECTION".

2. Connect the negative (-) battery cable.






CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.

3. Connect scan tool MB991958 to the data link connector.
4. Turn the ignition switch to the ON position.
5. Check DTCs using scan tool MB991958 to ensure entire SRS operates properly. At this time, check that no DTC except B1B02, B1B06, B1B0A and B1B0E are set.

DANGER : Wait at least 60 seconds after disconnecting the battery cable before doing any further work.

WARNING : Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.

6. Turn the ignition switch to the "LOCK" (OFF) position. Disconnect the negative (-) battery cable and tape the terminal to prevent accidental connection and air bags deployment.

]]B[[ CLOCK SPRING INSTALLATION
1. Check that the front wheels are at the straight ahead position.

CAUTION:
- If the center of the clock spring is not correctly aligned, the steering wheel may not be turned fully or the cable inside the clock spring may be broken, causing the SRS air bag to be inoperative or operated incorrectly.
- When aligning the clock spring neutral position mark, perform with the clock spring independently. If performed with the steering wheel sensor installed, the steering wheel sensor may be damaged.




2. Align the mating marks of the clock spring. Alignment of mating marks
1. Turn the clock spring clockwise fully.
2. Turn the clock spring counterclockwise approximately three and 3/4 turns to align the mating marks.
3. Install the clock spring to the column switch.

]]C[[ STEERING WHEEL ASSEMBLY/DRIVER'S AIR BAG MODULE ASSEMBLY INSTALLATION

CAUTION: When installing the steering wheel and air bag module, ensure that the harness of the clock spring does not become caught or tangled.

1. Before installing the steering wheel and air bag module, turn the vehicle s front wheels to the straight-ahead position and align the mating marks of the clock spring.
2. After securing the steering wheel, turn the steering wheel all the way in both directions to confirm that the steering wheel rotation is normal.

]]D[[ driver's AIR BAG MODULE CONNECTOR/HORN CONNECTOR CONNECTION
Connect the connector securely and route the harnesses not to lie off the cover hole.

]]E[[ POST-INSTALLATION INSPECTION
1. Reconnect the negative (-) battery cable.
2. Turn the ignition switch to ON position.




3. Does the "SRS" warning light illuminate for approximately seven seconds, and go out?
4. If yes, the SRS system is functioning properly. If not, refer to DIAGNOSTIC TROUBLE CODE CHART .