Steering Wheel Inflatable Restraint Module Coil Replacement Coil

Caution: Refer to SIR Caution in the Preface section.




1. Disable the SIR system. Refer to SIR Disabling and Enabling .
2. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement in Steering Wheel and Column.
3. Remove the wire harness assembly (4) from the wire harness strap (5).
4. Remove the 2 wire harness straps (3) from the wire harness assembly.
5. Remove the wire harness strap (2) from the upper tilt head assembly (1).



6. Remove the retaining ring (1).
7. Remove the SIR coil (2).
8. Remove the wave washer (3) from the steering column upper shaft.

1. Align the block tooth on the upper shaft to the 12 o'clock position (1).




Notice: Ensure all fasteners are securely seated before applying needed torque. Failure to do so may result in component damage or malfunctioning of steering column.

2. Install the wave washer (1) to the steering column upper shaft.
3. A new SIR coil assembly will come pre-centered. However if centering is required, refer to Inflatable Restraint Steering Wheel Module Coil Centering in Steering Wheel and Column.



4. Align the SIR coil (2) with the horn tower on the turn signal cancel cam (1)

Important: Do not remove the tab on the SIR coil until installation is complete.

5. Install the pre-centered SIR coil (2) to the steering column upper shaft.



6. Remove and discard the centering tab (1).




Notice: Gently pull on the lower coil assembly wire in order to remove any wire kinks inside of the column assembly. Verify that there are NO kinks or bends in the SIR coil assembly wire. If a kink or bend is present, interference may occur with the shaft lock mechanism. Turning the steering wheel may cut or damage the wire.

7. Install the retaining ring (1). Verify that the ring (1) is firmly seated in the groove on the upper shaft (2).



8. Install the wire harness assembly (4) into the wire strap (5).
9. Install the wire harness strap (2) into the upper tilt head assembly (1).
10. Install wire harness straps (3) to the wire harness assembly.
11. Install the steering column trim covers. Refer to Steering Column Trim Covers Replacement in Steering Wheel and Column.
12. Enable the SIR system. Refer to SIR Disabling and Enabling .

Steering Wheel Inflatable Restraint Module Coil Replacement Coil and Harness Assembly

Tools Required

J 42640 Steering Column Anti Rotation Pin

Caution: Refer to SIR Caution in the Preface section.




1. Disable the SIR System. Refer to SIR Disabling and Enabling .

Notice: The wheels of the vehicle must be straight ahead and the steering column in the LOCK position before disconnecting the steering column or intermediate shaft from the steering gear. Failure to do so will cause the SIR coil assembly to become uncentered, which may cause damage to the coil assembly.

2. Verify the following before removing the SIR coil:

•	The wheels on the vehicle are straight ahead.

•	That J 42640 is installed or the ignition switch is in the LOCK position.

3. Remove the steering wheel from the steering shaft. Refer to Steering Wheel Replacement in Steering Wheel and Column.



4. On vehicles with a tilt column, pull the tilt lever straight out from the steering column.



5. Remove 2 TORX® head screws (1) from the lower trim cover (2).
6. Remove the lower trim cover (2).



7. Remove 2 TORX® head screws (2) from the upper trim cover (1).
8. Remove the upper trim cover (1).



9. Remove the wire harness straps from the steering wheel column wire harness.
10. Remove the retaining ring.



11. Disconnect the wire harness assembly from the base of the column.
12. Remove the SIR coil and wire harness assembly from the steering shaft.
13. If replacing, discard the SIR coil.

Notice: The new SIR coil assembly will be centered. Improper alignment of the SIR coil assembly may damage the unit, causing an inflatable restraint malfunction.

Notice: The wheels of the vehicle must be straight ahead and the steering column in the LOCK position before disconnecting the steering column or intermediate shaft from the steering gear. Failure to do so will cause the SIR coil assembly to become uncentered, which may cause damage to the coil assembly.

1. Verify the following:

•	The wheels on the vehicle are straight ahead.

•	ThatJ 42640 is installed or the ignition switch is in the LOCK position.





Important: Do not remove the centering tab from the new SIR coil until the installation is complete. If the SIR coil does not come with a centering tab, you MUST center the SIR coil.

2. If reusing the existing coil it MUST be centered, refer to Inflatable Restraint Steering Wheel Module Coil Centering in Steering Wheel and Column.



3. Align the SIR coil assembly (1) with the horn tower on the turn signal cancel cam assembly and install onto the steering shaft.



4. Firmly seat the retaining ring (3) into the groove on the steering shaft assembly (2).
5. Remove and discard the centering tab from the new SIR coil.
6. Route the wire harness assembly around the column and install the wire harness straps.
7. Connect the connectors of the wire harness assembly.

Notice: Refer to Fastener Notice in the Preface section.




8. Install the upper trim cover (1) and secure by using 2 TORX® head screws (2).

Tighten
Tighten the screws to 1.5 N·m (13 lb in).




9. Install the lower trim cover (2) and secure by using 2 TORX® head screws (1).



10. Verify that the tabs on the lower trim cover (1) engage with the tabs on the upper trim cover (2). Snap the tabs together.

Tighten
Tighten the screws to 1.5 N·m (13 lb in).




11. On vehicles with a tilt column, align the tilt lever into the steering column.
12. Slide the tilt lever handle into the steering column until the handle locks into position.



13. Install the steering wheel onto the steering shaft. Refer to Steering Wheel Replacement in Steering Wheel and Column.
14. Enable the SIR system. Refer to SIR Disabling and Enabling .