Climate Control Module

Removal and replacement of the climate control module in the center console, including trim removal, module disconnection, and system verification.

Warnings

Tools required

Parts

• Climate control module × 1 — Use OEM specification
• Trim panel clips (if damaged) × 1 — Various retaining clips

Preparation

1. Park vehicle on level surface and engage parking brake.
2. Turn ignition off and remove key fob from vehicle interior.
3. Allow interior to cool if vehicle has been in direct sunlight (to prevent burns from metal trim).
4. Disconnect negative battery terminal and wait 5 minutes for airbag system capacitors to discharge.
5. Gather all tools and new climate control module before beginning.

Procedure

1. 1

   Remove center console lower trim panel
   Starting at the rear of the center console near the transmission selector, carefully insert a plastic trim tool between the lower trim panel and console body. Release the retaining clips working from rear to front. The number and location of retaining clips must be verified against 2009 DB9 service documentation; do not assume a fixed count. Lift panel away once all clips are released. Note the location of any wiring connectors for heated seat switches or other controls that may be integrated into this panel. Note: Verify correct climate control module part number against Aston Martin parts documentation for the specific 2009 DB9 VIN/build.
2. 2

   Disconnect auxiliary controls
   If the lower trim panel contains heated seat switches or other controls, press the locking tab on each electrical connector and disconnect. Set the trim panel aside in a safe location where it will not be scratched.
3. 3

   Remove climate control surround trim
   Locate the decorative surround trim that frames the climate control module in the center stack. This trim piece retention method (clips and/or Torx fasteners, exact size and count) must be verified against 2009 DB9 service documentation before proceeding; the surround is often secured by concealed spring clips rather than front-accessible screws. Remove these fasteners and carefully pull the surround trim forward, being mindful of the delicate finish. Set aside.
4. 4

   Remove climate control module mounting fasteners
   With the surround trim removed, the climate control module mounting fasteners are now accessible. Remove the Torx screws securing the module to the center stack bracket (exact size and count to be verified against 2009 DB9 service documentation). Support the module as you remove the final fastener to prevent it from falling.
5. 5

   Extract climate control module
   Carefully pull the climate control module forward approximately 4 inches until you can access the rear of the unit. Work slowly to avoid snagging wiring harnesses. Use a flashlight to inspect the rear connections before proceeding.
6. 6

   Disconnect climate control electrical connectors
   Locate the main electrical connector on the rear of the climate control module. Press the locking tab (typically a slide-type or button-release mechanism) and carefully pull the connector straight back to disconnect. If there is a secondary connector for temperature sensors or additional functions, disconnect it using the same method. Note the orientation of each connector for reinstallation.
7. 7

   Disconnect climate control vacuum lines (if equipped)
   The 2009 DB9 uses an electronic automatic climate control system with electric blend-door actuators and does not use vacuum lines at the climate control module. No vacuum lines will be present at the module; skip this step and proceed to module removal. Note: The 2009 DB9 uses electrically actuated blend/mode doors controlled by electric stepper motors, not vacuum actuators. There are no vacuum lines connected to the climate control module, so this step does not apply. Verify only that all electrical connectors have been released before removing the module. Note: The 2009 DB9 uses electrically actuated blend door servo motors rather than vacuum actuators, so no vacuum lines are present on the climate control module. Skip this step and proceed to removing the module.
8. 8

   Remove old climate control module
   With all electrical and vacuum connections released, remove the old climate control module from the vehicle. Inspect the mounting bracket area for any debris or damage before installing the new module.
9. 9

   Prepare new climate control module
   Remove the new climate control module from its packaging. Inspect all connector pins on the rear of the unit for damage or bent terminals. If equipped with a protective plastic cover over connectors, remove it. Compare the new module to the old unit to verify correct part number and connector configuration.
10. 10

    Install new climate control module connectors
    Carefully position the new climate control module near its mounting location without fully inserting it. Reconnect all electrical connectors by aligning the connector keys and pressing firmly until you hear or feel a positive click. This platform has no vacuum lines at the climate control module, so no vacuum connections need to be reconnected.
11. 11

    Seat and secure climate control module
    Push the climate control module into its mounting position, ensuring no wiring is pinched between the module and bracket. Align the mounting holes and install the climate control module mounting screws (verify exact count and Torx size against 2009 DB9 factory documentation). Tighten screws in a cross pattern to hand-tight only; do not overtighten as these thread into plastic bosses. Confirm the factory torque specification against 2009 DB9 service documentation before applying a torque value; do not rely on an estimated value as these screws thread into plastic bosses. Do not overtighten as this can crack the module housing. Note: Align the mounting holes and install the climate control module mounting screws (verify exact count and Torx size against factory documentation). Tighten gently and evenly to the factory-specified torque (confirm value against Aston Martin service data). Do not overtighten as this can crack the module housing.
12. 12

    Reinstall climate control surround trim
    Position the decorative surround trim over the climate control module, aligning it carefully with the center stack opening. Install the surround trim fasteners and tighten snug but not fully tight, as these thread into plastic or soft trim clips. Confirm exact fastener count and any factory torque specification against 2009 DB9 service documentation. Note: Install the surround trim fasteners (verify exact count and size against factory documentation) and tighten gently to the factory-specified torque; these thread into plastic or soft metal trim clips so do not overtighten.
13. 13

    Reconnect auxiliary controls and reinstall lower trim
    If the lower console trim panel has integrated switches, reconnect all electrical connectors by pressing them together until they click. Position the lower trim panel and align all retaining clips. Press firmly at each clip location until you hear a positive snap, working from front to rear.
14. 14

    Reconnect battery and initialize system
    Reconnect the negative battery terminal (verify battery location against 2009 DB9 documentation; it is generally located in the boot/trunk area). Turn the ignition to the ON position (engine not running). The climate control display should illuminate when the ignition is switched ON. Note that a replacement module may require configuration/coding to the vehicle using Aston Martin diagnostic equipment before all functions operate correctly. Blend-door actuators may re-calibrate on initial power-up. Note: Reconnect the negative battery terminal (verify battery location against 2009 DB9 documentation; it is generally located in the boot/trunk area). Turn the ignition to the ON position (engine not running). The climate control display should illuminate; however, a replacement module on this networked platform may require configuration/coding with Aston Martin diagnostic equipment before full functionality is restored. Verify whether the new module requires dealer-level setup. You may hear blend door actuators cycling during initialization, which is normal. Note: Reconnect the negative battery terminal. Turn the ignition to the ON position (engine not running). The climate control display should illuminate; however, a replacement module on this networked platform may require configuration/coding with Aston Martin diagnostic equipment before full functionality is restored. Verify whether the new module requires dealer-level setup. You may hear blend door actuators cycling during initialization, which is normal. Note: Reconnect the negative battery terminal. Turn the ignition to the ON position (engine not running). The climate control module should illuminate. Blend door actuators may require a calibration cycle; refer to Aston Martin service documentation to confirm whether calibration is performed automatically on power-up or must be initiated with a diagnostic tool. You may hear actuator motors cycling during calibration, which is normal.

Reassembly

1. Ensure all trim panels are fully seated with no gaps or misalignment.
2. Verify all electrical connectors clicked into place during installation.
3. Check that no tools or fasteners were left in the console cavity.
4. Recalibrate power windows if necessary (auto-up/down function) by fully lowering each window, then fully raising and holding the switch for 2 seconds.

Verification

• Start the engine and verify climate control display illuminates correctly with no error messages.
• Test all climate control functions: fan speed adjustment, temperature control, mode selection (defrost, floor, dash vents), and recirculation.
• Verify airflow changes appropriately when switching between modes and that temperature adjusts from full cold to full hot.
• Check that automatic climate control functions (if equipped) maintain set temperature without manual intervention.
• Verify rear climate controls operate independently (if equipped with dual-zone system).
• Test defrost function and confirm airflow directs to windshield vents.
• Listen for unusual sounds from blend door actuators during mode changes - operation should be smooth and quiet.

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