Silverado 2008

Control Module

Print

Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
    NOTE
    When performing service on or near the SRS components, or SRS wiring the SRS must be disabled. Failure to observe the correct procedure could cause deployment of the SRS components. Serious injury can occur.

  2.  
  3. Position the steering wheel so the front wheels are in the straight ahead position.
  4.  
  5. Be sure the ignition switch is in the OFF position.
  6.  
  7. Disconnect the negative battery cable.
    NOTE
    The SDM may have more than one fused power input. To ensure that there is no unwanted SRS deployment, personal injury, or unnecessary SRS system repairs, remove all fuses supplying power to the SDM. With all SDM fuses removed and the ignition switch in the ON position, the AIR BAG warning indicator will illuminate. This is normal and does not indicate a SRS system malfunction.

  8.  
  9. Locate and remove the fuses supplying power to the SDM.
  10.  
  11. Wait one minute before working on the vehicle.
  12.  
  13. Remove the instrument panel accessory trim plate.

    Click image to see an enlarged view

    Fig. Instrument panel accessory trim plate and related components-without SLT



    Click image to see an enlarged view

    Fig. Instrument panel accessory trim plate and related components-SLT



    Click image to see an enlarged view

    Fig. Instrument panel cluster trim plate cover and related components-except SLT



    Click image to see an enlarged view

    Fig. Instrument panel cluster trim plate cover and related components-SLT



    Click image to see an enlarged view

    Fig. HVAC control module and related components-manual air conditioning



    Click image to see an enlarged view

    Fig. HVAC control module and related components-automatic air conditioning

  14.  

To install:


NOTE
Be sure to use new fasteners, as required.

  1. Installation is the reverse of the removal procedure.
  2.  
  3. Using the GM diagnostic scan tool or aftermarket equivalent reprogram the control module. Be sure to follow the scan tool manufacturer-s directions.
  4.  
  5. Enable the SRS system. Be sure the ignition switch is in the OFF position. Install the fuses. Connect the negative battery cable. Turn the ignition switch to the ON position. If the system is operating properly the AIR BAG indicator will flash.
  6.  

 
label.common.footer.alt.autozoneLogo