Wire Harness Replacement Procedure

1. Disable the SIR system following applicable Service Manual instructions.

2. Remove SIR module.

3. Remove Steering Wheel Redundant Control (SWRC) switches and wire harness from steering wheel. The Wire Harness WILL NOT be reused. The switches WILL be reused.

IMPORTANT
Proceed to Coil Replacement Procedure, in this bulletin, if Inspection Procedure determined replacement of coil was required. It is anticipated that SIR coils will only be needed on approximately 5% of the vehicles.






4. Using a sharp utility knife, cut a groove in steering wheel inner foam as shown in Figure 1. Groove will need to be deep enough (approximately 6 mm or 1/4 inch) for wires to rest in and below the surface of the foam.






5. Install NEW SWRC wire harness and original switches removed in Step 3, and route Yellow & Gray SIR coil wires as shown in Figure 2. Make sure wires are in groove (formed in step 4), below surface and away from any sharp edges. Be sure to use a blunt object such as a tongue depressor or Popsicle stick to install wires.

6. Reinstall SIR module and enable SIR system.

7. Clear codes from SIR system. Perform SIR System Diagnostic Check.

8. Verify correct operation of redundant controls and control backlighting. Any malfunctions should be corrected and the system rechecked.

9. Install Campaign Identification Label.