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HVAC System - Automatic: Removal & Installation Cadillac STS I

Automatic HVAC System 4 illustrations ~892 words

Removal Procedure

  1. Remove the ashtray. Refer to «Ashtray Replacement»(ref-197555-S27019644922005101200000) .
  2. Remove the radio. Refer to «Radio Replacement»(ref-197539-S20078379232005101200000) .
  3. Remove the HVAC control module retaining screws.
  4. Disconnect the HVAC control module electrical connectors.
  5. Remove the HVAC control module.

Installation Procedure

  1. Install the HVAC control module.
  2. Connect the HVAC control module electrical connectors.
  3. Install the HVAC control module retaining screws. Tighten: Tighten the screws to 2 N.m (18 lb in).
  4. Install the radio. Refer to «Radio Replacement»(ref-197539-S20078379232005101200000) .
  5. Install the ashtray. Refer to «Ashtray Replacement»(ref-197555-S27019644922005101200000) .
  1. Remove the right sound insulator. Refer to «Closeout/Insulator Panel Replacement - Right»(ref-197555-S42331658092005101200000) in Instrument Panel, Gages, and Console.
  2. Disconnect the electrical connector from the blower motor control processor.
  3. Remove the blower motor control processor retaining screw.
  4. Remove the blower motor control processor from the vehicle.
  1. Install the blower motor control processor.
  2. Install the blower motor control processor retaining screw. Tighten: Tighten the screw to 1 N.m (9 lb in).
  3. Connect the electrical connector to the blower motor control processor.
  4. Install the right sound insulator. Refer to «Closeout/Insulator Panel Replacement - Right»(ref-197555-S42331658092005101200000) in Instrument Panel, Gages, and Console.

Scheme 12

Scheme 12: HVAC Control Assembly Replacement - Auxiliary
Scheme 12: HVAC Control Assembly Replacement - Auxiliary
CalloutComponent Name
Auxiliary HVAC Control Assembly
1Panel, Center Console End Tip: Release the retaining clips using a blunt trim tool. Refer to Center Console End Panel Replacement .
2Connector, Auxiliary HVAC Control Module
3Retaining Screws (Qty 4) Tighten: 2 N.m (18 lb in)
4Module, Auxiliary HVAC Control

HVAC Control Assembly Replacement - Auxiliary

  1. Remove the air inlet assembly. Refer to «Air Inlet Assembly Replacement»(ref-197627-S02917759162005101200000) in Heating, Ventilation and Air Conditioning.
  2. Disconnect the electrical connector from the recirculation actuator.
  3. Remove the recirculation actuator screws (1).
  4. Remove the recirculation actuator.
  1. Install the recirculation actuator.
  2. Install the recirculation actuator screws (1). Tighten: Tighten the screws to 1 N.m (9 lb in).
  3. Connect the electrical connector to the recirculation actuator.
  4. Install the air inlet assembly. Refer to «Air Inlet Assembly Replacement»(ref-197627-S02917759162005101200000) in Heating, Ventilation and Air Conditioning.
  1. Remove the instrument panel (I/P) carrier. Refer to «Instrument Panel (I/P) Carrier Replacement»(ref-197555-S10899981542005101200000) in Instrument Panel, Gages and Console.
  2. Disconnect the mode actuator electrical connector.
  3. Remove the mode actuator screws (3).
  4. Remove the mode actuator.
  1. Install the mode actuator.
  2. Install the mode actuator screws (2). Tighten: Tighten the screws to 1 N.m (9 lb in).
  3. Connect the electrical connector to the actuator.
  4. Install the I/P carrier. Refer to «Instrument Panel (I/P) Carrier Replacement»(ref-197555-S10899981542005101200000) in Instrument Panel, Gages and Console.
  1. Remove the air inlet assembly. Refer to «Air Inlet Assembly Replacement»(ref-197627-S02917759162005101200000) in Heating, Ventilation and Air Conditioning.
  2. Remove the right air temperature actuator screws (1).
  3. Remove the right air temperature actuator.
  4. Disconnect the right air temperature actuator electrical connector.
  1. Connect the right air temperature actuator electrical connector.
  2. Install the right air temperature actuator.
  3. Install the right air temperature actuator screws (1). Tighten: Tighten the screws to 1 N.m (9 lb in).
  4. Install the air inlet assembly. Refer to «Air Inlet Assembly Replacement»(ref-197627-S02917759162005101200000) in Heating, Ventilation and Air Conditioning.
  1. Remove the left closeout panel. Refer to «Closeout/Insulator Panel Replacement - Left»(ref-197555-S24459859312005101200000) in Instrument Panel, Gages, and Console.
  2. Disconnect the left air temperature actuator electrical connector from the actuator.
  3. Remove the left air temperature actuator screws.
  4. Remove the left air temperature actuator.
  1. Install the left air temperature actuator.
  2. Install the left air temperature actuator screws. Tighten: Tighten the screws to 1 N.m (9 lb in).
  3. Connect the left air temperature actuator electrical connector to the actuator.
  4. Install the left closeout panel. Refer to «Closeout/Insulator Panel Replacement - Left»(ref-197555-S24459859312005101200000) in Instrument Panel, Gages and Console

Scheme 13

Scheme 13: Air Temperature Actuator Replacement - Auxiliary
Scheme 13: Air Temperature Actuator Replacement - Auxiliary
CalloutComponent Name
Fastener Tightening Specifications: Refer to Fastener Tightening Specifications .
Instrument Panel (I/P) Retainer Replacement Preliminary Procedures Remove the Instrument Panel (I/P) Retainer. Refer to Instrument Panel (I/P) Retainer Replacement in Instrument Panel, Gages, and Console. Remove the Instrument Panel (I/P) Carrier. Refer to Instrument Panel (I/P) Carrier Replacement in Instrument Panel, Gages, and Console.
1Connector Air Temperature Actuator
2Retaining Screws, Air Temperature Actuator (Qty. 3) Tighten: 1 N.m (9 lb in)
3Actuator, Air Temperature

Air Temperature Actuator Replacement - Auxiliary

Scheme 14

Scheme 14: Mode Actuator Replacement - Console
Scheme 14: Mode Actuator Replacement - Console
CalloutComponent Name
NOTE: Refer to Fastener Notice in Cautions and Notices. Fastener Tightening Specifications: Refer to Fastener Tightening Specifications in Heating, Ventilation and Air Conditioning, and Fastener Tightening Specifications .
Mode Actuator - Console
1Console, Front Floor Refer to Console Replacement - Front Floor in Instrument Panel, Gages, and Console.
2Panel, Center Console End Tip: Using blunt trim tool release the retaining clips. Refer to Center Console End Panel Replacement in Instrument Panel, Gages, and Console. Removing the end panel, allows the removal of the Air Distribution Duct (6).
3Screw, Side Impact Brace (Qty 5) Tighten: 2 N.m (18 lb in)
4Brace, Side Impact
5Screw, Air Distribution Duct (Qty 3) Tighten: 2 N.m (18 lb in)
6Duct, Air Distribution
7Screw, Retainer Actuator (Qty 2) Tighten: 1 N.m (9 lb in)
8Connector, Mode Actuator
9Actuator, Mode
NOTE
Refer to Fastener Notice in Cautions and Notices.

Mode Actuator Replacement - Console

  1. Remove the I/P cluster trim panel. Refer to «Trim Panel Replacement - Instrument Panel (I/P) Cluster»(ref-197555-S24275946012005101200000) .
  2. Remove the knee bolster reinforcement. Refer to «Knee Bolster Reinforcement Replacement»(ref-197555-S09488958332005101200000) .
  3. Disconnect the aspirator hose from the HVAC module.
  4. Disconnect the aspirator hose (3) from the inside air temperature sensor.
  5. Remove the aspirator hose.
  1. Install the aspirator hose.
  2. Connect the aspirator hose (3) to the inside air temperature sensor.
  3. Connect the aspirator hose to the HVAC module.
  4. Install the knee bolster reinforcement. Refer to «Knee Bolster Reinforcement Replacement»(ref-197555-S09488958332005101200000) .
  5. Install the I/P cluster trim panel. Refer to «Trim Panel Replacement - Instrument Panel (I/P) Cluster»(ref-197555-S24275946012005101200000) .

Scheme 15

Scheme 15: Air Quality Sensor Replacement
Scheme 15: Air Quality Sensor Replacement
CalloutComponent Name
NOTE: Refer to Fastener Notice in Cautions and Notices. Fastener Tightening Specifications: Refer to Fastener Tightening Specifications .
Air Quality Sensor
1Retainer, Radiator Support Sight Shield (Qty 6)
2Shield Assembly, Front Compartment Front Sight
3Retainer, Radiator Grille (Qty 4) Tip: By removing these 4 retainers allows the front fascia grille (4) flexibility to be moved forward to access the Air Quality Sensor.
4Connector, Air Quality Sensor
5Bolt, Air Quality Sensor Tighten: 9 N.m (80 lb in)
6Air Quality Sensor
NOTE
Refer to Fastener Notice in Cautions and Notices.

Air Quality Sensor Replacement

  1. Disconnect the ambient air temperature sensor electrical connector (1).
  2. Release the ambient air temperature sensor from the clip.
  3. Remove the ambient air temperature sensor from the vehicle.
  1. Place the ambient air temperature sensor in position.
  2. Engage the ambient air temperature sensor into the clip.
  3. Connect the ambient air temperature electrical connector (1).
  1. Remove the I/P cluster trim panel. Refer to «Trim Panel Replacement - Instrument Panel (I/P) Cluster»(ref-197555-S24275946012005101200000) .
  2. Disconnect the aspirator hose (3) from the inside air temperature sensor (2).
  3. Disconnect the electrical connector (1) from the inside air temperature sensor (2).
  4. Disconnect the retaining clips and remove the inside air temperature sensor (2).
  1. Install the inside air temperature sensor (2).
  2. Connect the electrical connector (1) to the inside air temperature sensor (2).
  3. Connect the aspirator hose (3) to the inside air temperature sensor (2).
  4. Install the I/P cluster trim panel. Refer to «Trim Panel Replacement - Instrument Panel (I/P) Cluster»(ref-197555-S24275946012005101200000) .
  1. Remove the defroster grille. Refer to «Defroster Grille Replacement»(ref-197555-S28364401072005101200000) in Instrument Panel, Gages and Console.
  2. Remove the sunload sensor from the defroster grill by twisting the sensor 1/4 turn counter clockwise.
  3. Disconnect the sunload sensor electrical connector.
  4. Remove the sunload sensor.
  1. Connect the sunload sensor electrical connector.
  2. Install the sunload sensor to the defroster grille by twisting the sensor 1/4 turn clockwise.
  3. Install the defroster grille. Refer to «Defroster Grille Replacement»(ref-197555-S28364401072005101200000) in Instrument Panel, Gages and Console.

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