GrandPrix, Impala 2006-2008, Monte Carlo 2006-2007

Multi-Function (Combination) Switch

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Removal & Installataion



  1. Verify that the multifunction turn signal lever is in the center of the OFF position.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Disable the SIR (air bag) system. Refer to the Chassis Electrical Section.
  6.  
  7. Remove the air bag module from the steering wheel.
  8.  
  9. Remove the steering wheel.

    Click image to see an enlarged view

    Fig. Exploded view of the shroud-type steering column showing shrouds, wiring and multifunction switch that includes the headlamp function

  10.  
  11. Remove the upper and lower steering wheel trim covers using the following procedure.
    1. Remove the tilt lever assembly.
    2.  
    3. Remove the two pan head tapping screws from the lower shroud.
    4.  
    5. Unlock the upper and lower shroud.
    6.  
    7. Remove the two Torx® head screws from the upper shroud.
    8.  
    9. Remove the upper shroud.
    10.  

  12.  
  13. Remove the wire harness straps from the wire harness assembly and detach the wiring harness connectors from the switch side connectors.
  14.  
  15. Remove the two multifunction turn signal switch screws and remove the multifunction switch assembly from the vehicle.
  16.  

To install:

  1. Install the multifunction switch to the steering column. Use a small flat-blade prytool to compress the electrical contact and move the multifunction turn signal switch into position. Verify that the electrical contact rests on the canceling cam. Install the screws and tighten to 62 inch lbs. (7 Nm).
  2.  
  3. Route the wire harness along the steering column jacket assembly and secure into the wire harness strap. Install a new wire tie to the upper tilt head assembly and another lower along the wiring harness, as the original installation.
  4.  
  5. Verify that the lever is in the center of the OFF position.
  6.  
  7. Install the upper and lower steering column shrouds.
  8.  
  9. Route the SIR connector through the steering wheel, align the scribe mark on the steering wheel made at removal, with the slash mark on the steering shaft and install the steering wheel. Install the steering shaft nut and torque to 30 ft. lbs. (41 Nm).
  10.  
  11. Install the horn contact leads and the air bag connector to the back of the air bag. Make sure the CPA wedge is in place to secure the connector. Install the air bag by gently pushing on both the right and left sides of the air bag until the retaining springs engage.
  12.  
  13. Enable the SIR system by connecting the yellow 2-way connector at the base of the steering column and installing the air bag fuse.
  14.  
  15. Connect the negative battery cable. Test the horn, turn signals and headlight operation.
  16.  

  1. Disable the SIR system.
  2.  
  3. Remove the upper and lower trim covers.
  4.  
  5. Remove the knee bolster.
    NOTE
    The abrasion sleeve located on the steering column wire harness assembly must be reinstalled. Make note of what connector is coming out of the abrasion sleeve for installation purposes.

  6.  
  7. Remove the wire harness assembly from the wire harness strap.
  8.  
  9. Disconnect the turn signal and multifunction switch assembly connector from the SIR system coil connector.
  10.  
  11. Slide the 2 connectors of the turn signal and multifunction switch assembly out of the bulkhead connector.
  12.  
  13. Remove the 2 pan head tapping screws and from the turn signal and multifunction switch assembly.
  14.  
  15. Remove the turn signal and multifunction switch assembly from the steering column tilt head assembly.
  16.  

To install:


NOTE
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.


CAUTION
Be sure that the electrical contact of the turn signal and multifunction switch assembly (2) rests on the turn signal cancel cam assembly.


CAUTION
The abrasion sleeve must be installed back onto the steering column wire harness assembly. The ignition lock cylinder case wires and connector must be hanging out of the middle of the abrasion sleeve.

  1. To install, reverse removal procedure.
  2.  
  3. Tighten the following to specification.

    Top pan head tapping screw: 27 inch lbs. (3 Nm).
     
    Side pan head tapping screw: 62 inch lbs. (7 Nm).  
     

  4.  

  1. Disable the SIR system.
  2.  
  3. Remove the upper and lower trim covers.
  4.  
  5. Tilt the column to the CENTER position.
  6.  
  7. Disconnect the connectors from the turn signal and multifunction switch assembly.
  8.  
  9. Remove 2 pan head tapping screws from the turn signal and multifunction switch assembly.
  10.  
  11. Remove the turn signal and multifunction switch assembly.
  12.  
  13. To install, reverse removal procedure.
  14.  


CAUTION
When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling . Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs.

 
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