Workshop Manuals Factory service & repair Aston Martin
01 Introduction and safety02 Electrics03 Body and trim04 Air conditioning05 Diagnostic system (PDU)
Aston Martin DB7 Factory Workshop Manual Volume 2: Electrics, Body and Air Conditioning (1994-1998)04 · Air conditioning
04 · Heating & A/C

8.2.14.1 Electronic Control Module Renew

Make
Aston Martin
Model
DB7 Factory Workshop Manual Volume 2: Electrics, Body and Air Conditioning
Year
1994–1998
Section
Repair procedures › 8.2.14.1 Electronic Control Module Renew
Air conditioning8.2.14.1 Electronic Control Module Renew

8.2.14.1 Electronic Control Module Renew

  1. Disconnect the battery earth lead.
  2. Remove the right hand underscuttle casing.
  3. (On left hand cars) Remove the glove box assembly.
  4. (On right hand cars) Remove the instrument pack and surround trim.
  5. Disconnect the earth wire and three block connectors from the control module (Fig. 1-2).
  6. Remove the securing screws and module from the air conditioning unit (Fig. 1-1).
  7. Fitting a new module is the reversal of the removal procedure.
Diagram showing the air conditioning unit with wiring and connectors
Figure 1.

8.3.01.1 Vacuum System Solenoid Renewal

The flaps in the cabin air distribution vents and the water valve in the pipe line from the engine coolant system to the heater matrix are all operated by vacuum actuators. The vacuum for these is supplied by four solenoids mounted in a manifold pack located behind the front left hand footwell outlet. Failure of a solenoid will require replacement of the manifold pack.

Procedure

  1. Disconnect the battery earth lead.
  2. Remove the following:
    • glove box and lid
    • facia trim (walnut strip)
    • radio and ashtray
    • centre console switch assembly
    • left hand underscuttle casing/knee bolster

    Details of the above operations can be found in the trim and the electrical sections.

  3. Remove the fixings joining the centre console to the facia. This allows the front of the console to be repositioned for access.
  4. Disconnect the ducting from the left hand footwell outlet.
  5. Remove the two plastic fixings that secure the slotted footwell outlet and slide the outlet out of the unit.
  6. Cut the tie strap holding the vacuum lines and electrical harness to the underside of the air conditioning unit.
  7. Remove the screws that secure the manifold pack to the underside of the air conditioning unit and slide out the plate complete with the manifold pack.
  8. To fit a new manifold pack reverse the steps for the removal.

Parts & tools for this job For 1994 Aston Martin DB7

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