Workshop Manuals Factory service & repair Aston Martin
01 00 Introduction02 01 Body system03 02 Frame and mounting04 03 Engine05 04 Suspension06 05 Driveline07 06 Brake system08 07 Transmission09 08 Clutch10 09 Exhaust11 10 Fuel12 11 Steering13 12 Climate control14 13 Information, gauge and warning15 14 Power supply16 15 Vehicle entertainment17 16 Vacuum distribution18 17 Lighting19 18 Electric distribution and electronic control20 19 Electronic features21 20 Appendix and glossary
Aston Martin DB9 Factory Workshop Manual (Issue 2, 2005)13 · 12 Climate control
13 · Heating & A/C

Installation

Make
Aston Martin
Model
DB9 Factory Workshop Manual
Year
Issue 2, 2005
Section
Air Conditioning (A/C) System › Installation
12 Climate controlInstallation

Installation

  1. Install the power transistor and connect the wiring harness plug.
  2. Install the glove box.
  3. Connect the vehicle battery.

Evaporator Temperature Sensor

Inspection

Inspect the Evaporator Temperature Sensor when it is installed in the A/C unit.

  1. Set the fan speed Max. Hi.
  2. Set the temperature control to Max. Cold.
  3. Set the air intake mode to Recirculate.
  4. Turn the A/C switch off.
  5. Close all the doors and windows. Wait for 5 minutes.
  6. Disconnect the Evaporator Temperature Sensor connector.
  7. Measure the temperature at the air intake.
  8. Measure the resistance between the Evaporator Temperature Sensor terminals.

If the characteristics of the Evaporator Temperature Sensor are not as shown in the graph, replace the Evaporator Temperature Sensor.

Graph showing Resistance in Kiloohm versus Temperature in Celsius and Fahrenheit

Removal

  1. Disconnect the vehicle battery.
  2. Remove the A/C unit (Refer to ‘A/C Unit’, page 12-3-11).
  3. Remove the evaporator (Refer to ‘Evaporator’, page 12-3-14).
  4. Remove the wiring harness plug from the A/C unit.
  5. Remove the evaporator temperature sensor.
Photograph showing the internal components of an A/C unit with a blue tube visible

Installation

  1. Install the evaporator temperature sensor.
  2. Insert the evaporator (inlet / outlet first) into the half of the A/C unit which houses the expansion valve.
  3. Complete with new ‘O’ rings, install the expansion valve and the A/C pipes clamp (screws x2).
  4. Install the clips (x2) that secure the evaporator temperature sensor element to the evaporator.
  5. Secure the two halves of the A/C unit together.
  6. Take care to correctly locate the two vent flaps.
  7. Connect (glue) the filter gauze and foam where the two halves of the A/C unit meet.
  8. Install the in-vehicle temperature pipe to the A/C unit clips.
  9. Install the A/C unit to the IP (Refer to ‘A/C Unit’, page 12-3-11).
  10. Install the IP (Refer to ‘Instrument Panel (IP) (01.12)’, page 1-9-1).
  11. Carry out A/C system actuator check and functional check to ensure correct operation (Refer to ‘A/C System Testing’, page 12-3-9).

Parts & tools for this job For 2005 Aston Martin DB9

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