SIR Steering Wheel Module Coil - Replacement

STEERING WHEEL INFLATABLE RESTRAINT MODULE COIL REPLACEMENT

Tools Required

J 42640 Steering Column Anti Rotation Pin

Removal Procedure

Caution: Refer to SIR Caution, Air Bag Systems






1. Disable the SIR system, refer to Air Bag(s) Arming and Disarming

Notice: With wheels of the vehicle facing straight ahead, secure the steering wheel utilizing steering column anti-rotation pin, steering column lock, or a strap to prevent rotation. Locking of the steering column will prevent damage and a possible malfunction of the SIR system. The steering wheel must be secured in position before disconnecting the following components:
- The steering column
- The intermediate shaft(s)
- The steering gear

Notice: After disconnecting these components, do not rotate the steering wheel or move the front tires and wheels. Failure to follow this procedure may cause the SIR coil assembly to become un-centered and cause possible damage to the SIR coil. If you think the SIR coil has became uncentered, refer to your specific SIR coil's centering procedure to re-center SIR coil.

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






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 (3).

11. Remove the SIR coil (4) from the steering shaft.

12. If replacing, discard the SIR coil.

Installation Procedure






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: With wheels of the vehicle facing straight ahead, secure the steering wheel utilizing steering column anti-rotation pin, steering column lock, or a strap to prevent rotation. Locking of the steering column will prevent damage and a possible malfunction of the SIR system. The steering wheel must be secured in position before disconnecting the following components:
- The steering column
- The intermediate shaft(s)
- The steering gear

Notice: After disconnecting these components, do not rotate the steering wheel or move the front tires and wheels. Failure to follow this procedure may cause the SIR coil assembly to become un-centered and cause possible damage to the SIR coil. If you think the SIR coil has became uncentered, refer to your specific SIR coil's centering procedure to re-center SIR coil.

1. Verify the following:
- The wheels on the vehicle are straight ahead.
- That J 42640 is installed or the ignition switch is in 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 SIR Steering Wheel Module Coil - Centering






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






4. Slide the SIR coil (4) onto the steering shaft assembly (2).

5. Firmly seat the retaining ring (3) into the groove on the steering shaft assembly (2).

6. Remove and discard the centering tab from the new SIR coil (4).

Notice: Refer to Fasten Notice.







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

8. Tighten the screws to 1.5 Nm (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.

11. Tighten the screws to 1.5 Nm (13 lb.in).






12. On vehicles with a tilt column, align the tilt lever into the steering column.

13. Slide the tilt lever handle into the steering column until the handle locks into position.






14. Install the steering wheel onto the steering shaft, refer to Steering Wheel

15. Enable the SIR system, refer to Air Bag(s) Arming and Disarming