Silverado 2008

Air Temperature Valve Actuator

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Removal & Installation



Left Side

Specific to:

Chevrolet Silverado 1500 2008

  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 insulator.
  14.  
  15. Remove the console, if equipped.

    Click image to see an enlarged view

    Fig. Front console and related components-except SLT



    Click image to see an enlarged view

    Fig. Front console and related components-SLT

  16.  
  17. Disconnect the electrical connector from the component.
  18.  
  19. Remove the retaining screws.
  20.  
  21. Remove the component from its mounting.

    Click image to see an enlarged view

    Fig. Temperature valve actuator and related components-driver-s side

  22.  

To install:


NOTE
Be sure to use new fasteners, as required.

  1. Installation is the reverse of the removal procedure.
  2.  
  3. Recalibrate the actuator.
    NOTE
    The preferred method to recalibrate the actuator is with a scan tool. Using the GM diagnostic scan tool or aftermarket equivalent reprogram the actuator. Be sure to follow the scan tool manufacturer-s directions.

  4.  
  5. If a scan tool is not available, Clear all DTC codes. Position the ignition switch in the OFF position. Remove the HVAC/ECAS fuse for a minimum of ten seconds. Install the fuse. Start the vehicle. Wait forty seconds for the HVAC control module to recalibrate. Verify that no DTC codes have set.
  6.  
  7. 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.
  8.  

Right Side

Specific to:

Chevrolet Silverado 1500 2008

  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 glove box.

    Click image to see an enlarged view

    Fig. Glove box and related components



    Click image to see an enlarged view

    Fig. Passenger-s side air bag module and related components

  14.  
  15. Remove the instrument panel SRS module.
  16.  
  17. Disconnect the electrical connector from the component.
  18.  
  19. Remove the retaining screws.
  20.  
  21. Remove the component from its mounting.

    Click image to see an enlarged view

    Fig. Temperature valve actuator and related components-passenger-s side

  22.  

To install:


NOTE
Be sure to use new fasteners, as required.

  1. Installation is the reverse of the removal procedure.
  2.  
  3. Recalibrate the actuator.
    NOTE
    The preferred method to recalibrate the actuator is with a scan tool. Using the GM diagnostic scan tool or aftermarket equivalent reprogram the actuator. Be sure to follow the scan tool manufacturer-s directions.

  4.  
  5. If a scan tool is not available, Clear all DTC codes. Position the ignition switch in the OFF position. Remove the HVAC/ECAS fuse for a minimum of ten seconds. Install the fuse. Start the vehicle. Wait forty seconds for the HVAC control module to recalibrate. Verify that no DTC codes have set.
  6.  
  7. 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.
  8.  

 
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