2010 ASTON MARTIN V8 VANTAGE ECU

Air Conditioning (A/C) System (12.03)
Climate Control (12.00)
12-3-2 Workshop Manual May 2007
Major Components
Compressor
• Engine mounted, driven by the accessory drive belt
• Variable displacement type
• High-pressure relief valve, to avoid system over-pressure
• ECU controlled clutch energised via a relay
Receiver drier
• Vertically mounted on the right-hand side of the engine bay
• The high-side charge port is installed to the high side entry pipe to the receiver drier
Condenser
• Multi-pass fin-over-tube type, mounted in front of the engine cooling pack and directly to the radiator
Trinary switch
Located in the compressor discharge pipe
• Provides a signal, via the A/C module, to the PCM, to disengage the compressor clutch should the refrigerant
pressure be less than 2 bar or greater than 30 bar
• Provides a hard-wired signal to the PCM, to switch the cooling fans to HIGH speed at 22 bar rising pressure and
to LOW speed at 17,5 bar falling pressure
• Provides a hard-wired signal to the PCM, to switch the radiator cooling fans to LOW speed at 12 bar rising
pressure and to switch the fans OFF at 8 bar falling
pressure
Expansion Valve
The expansion valve is located on the outside of the A/C unit
and comprises of a diaphragm, connected by a capillary
tube to a temperature sensing bulb, which regulates the
valve according to temperature variations at the evaporator
outlet pipe. This component is not serviceable.
A/C Unit

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Air Conditioning (A/C) System (12.03)
Climate Control (12.00)
12-3-6 Workshop Manual May 2007
Diagnostics
Electrical Connectors
A/C Module (C0792)



A/C Module (C0791)
PinSpecification
1 Air flow mode actuator (output)
2 Temperature actuator (output)
3Blank
4Blank
5Blank
6 A/C On (A/C pressure sensor)
7Blank
8 Recirculation actuator (output)
9Blank
10 Blank
11 Temperature level (RHD)
12 Blower speed regulator (Output)
13 Air flow mode actuator (output)
14 Temperature actuator (output)
15 Blank
16 Output
17 HAVAC ECU (input)
18 Blank
19 Blower relay (engine bay fusebox)
20 Recirculation actuator (output)
21 Blank
22 blank
23 Temperature level (LHD)
24 Blower speed regulator input)




Air Conditioning (A/C) System (12.03)
Climate Control (12.00)
May 2007 Workshop Manual 12-3-13
Maintenance
Condenser-Renew
Removal
1. Recover refrigerant gas from A/C system (see Workshop Manual procedure 12.03.FA Tank - Receiver Drier -
Renew).
2. Remove front grille (see Workshop Manual procedure 01.08.AA Grille - Radiator - Renew).
3. Remove slam panel (screws x12).
4. Remove bolts (x4) that secure PAS fluid cooler to bonnet latch cross member and posi tion fluid cooler aside.
5. Remove bolts (x6) that secure bonnet latch cross member to body and position aside.
6. Remove bolts (x2) that secure condenser pipe connections.
7. Plug pipes and block connections.
8. Remove and discard 'O' rings (x2) from pipe connections.
9. Remove bolts (x2) that secure condenser to radiator and remove condenser.
Installation
1. Install condenser to radiator and install and torque tighten bolts (x2).
2. Clean pipe connections and remove plugs.
3. Install new 'O' rings to pipe connections.
4. Connect pipes to condenser and install and torque tighten bolts (x2).
5. Install bonnet latch cross member and install and torque tighten bolts (x6).
6. Position PAS fluid cooler to cross member and install
and torque tighten bolts (x4).
7. Install slam panel.
8. Install front grille (see Workshop Manual procedure 01.08.AA Grille - Radiator - Renew).
9. Refrigerant gas re-charge A/C system (see Workshop Manual procedure 12.03.FA Tank - Receiver Drier -
Renew).
Air Conditioning Compressor-Renew
Removal
1. Battery isolation switch ‘OFF’.
2. Recover A/C refrigerant (see Workshop Manual procedure 12.03.FA Refriger ant Gas - Recover/Recharge
- Renew).
3. Disconnect breather pipe qu ickfits (x2) from air cleaner
duct.
4. Remove throttle body duct for access (clips x3).
5. Release tensioner and slip belt from idler.
6. Move belt off compressor pulley.
7. Raise vehicle on ramp.
8. Remove road wheel/s
9. Remove LH wheel arch li ner (see Workshop Manual
procedure 01.02.FB Wheel Arch Liner - Front - LH -
Renew).
10. Disconnect clutch multiplug.
11. Remove bolt HP pipe to bracket.
12. Loosen oil pipe support bolt on bracket.
13. Remove pipes from compressor (bolts x2) and move aside.
14. Remove compressor (bolts x4) release from bracket.
Installation
1. Fit new o-rings to A/C pipes (lubricate).
2. Install compressor (bolts x4) (torque) align to oil pipe bracket.
3. Install pipes to compress or (bolts x2) (torque).
4. Tighten oil pipe support bolt on bracket.
5. Install bolt HP pipe to bracket.
6. Connect clutch multiplug.
7. Install LH wheel arch liner (see Workshop Manual procedure 01.02.FB Wheel Arch Liner - Front - LH -
Renew).
8. Install road wheel/s.
9. Lower vehicle on ramp.
10. Fit belt to compressor pulley.
11. Release tensioner an d slip belt on idler.
12. Install throttle body duct.
13. Connect breather pipe quickf its (x2) to air cleaner duct.
Repair Operation Time (ROT)
Repair Operation Time (ROT)

Air Conditioning (A/C) System (12.03)
Climate Control (12.00)
12-3-14 Workshop Manual May 2007
14. Recharge A/C refrigerant (see Workshop Manual
procedure 12.03.FA Refriger ant Gas - Recover/Recharge
- Renew).
15. Battery isolation switch ‘ON’.
Blower Assembly-Renew
Removal
1. Remove IP assembly (see Workshop Manual procedure 01.12.AB Facia Assembly - LHD - Remove for access
and refit).
2. Disconnect multiplugs (x2) from blower motor (see Fig. 1).
3. Release harness clip from blower motor.
4. Remove nuts (x3) securing blower motor assembly to IP.
5 . Remove bolt and nut s (x 2) s ecurin g hea ter u nit to IP (se e Fig. 2).
6. Release and remove blower motor assembly from heater unit.
Installation
1. Install blower motor assembly to heater unit. 2. Align blower motor assembly and heater unit onto studs.
3. Install and torque tighten bolt and nuts (x5) securing
heater and blower assemblies to IP.
4. Install harness clip in blower motor assembly.
5. Connect multiplugs (x2) to blower motor.
6. Install IP assembly (see Workshop Manual procedure
01.12.AB Facia Assembly - LHD - Remove for access
and refit).
Compressor to Condenser Tube
Assembly-Renew
Removal
1. Remove PAS pump (see Workshop Manual procedure 03.05.AA Pump - Power Steering - Renew).
2. Remove condenser (see Workshop Manual procedure 03.03.EC Air Con - Condenser - Renew).
3. Disconnect breather pipe qu ickfits (x2) from air cleaner
duct.
4. Remove throttle body duct for access (clips x3).
5. Disconnect sensor multip lugs (x2) (see Fig. 1).
6. Remove (bolts x2) pipe support P-clips and pipe.
7. Mark relative position of p-clips (x2), remove from pipe.
Installation
1. Install P-clips (x2) to pipe in same position as from old pipe.
2. Install pipe and (bolts x2) pipe support P-clips.
3. Connect sensor multiplugs (x2).
Repair Operation Time (ROT)
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Repair Operation Time (ROT)
ItemCode
Compressor to Condenser Tube
Assembly-Renew 12.03.GA
Fig. 1
Caution
Ensure open A/C pipe ends are plugged immediately
after disconnecting refrigerat ion parts. If moist air or
foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise or other
faults may occur.
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Battery System (14.01)
Power Supply (14.00)14-1-4 Workshop Manual May 2007
Specifications
Maintenance
Battery Disconnect Switch-Renew
Removal
1. Power RH seat fully forward.
2. Remove rear compartment cover.
3. Disconnect vehicle battery.
4. Remove panel assembly - quar ter trim middle - RH (see
Workshop Manual procedure 01.05.CL Panel Assembly
- Quarter Trim Middle Section - RH - Renew).
5. Release rear carpet studs (x2), move carpet aside.
6. Remove screws (x2), battery compartment cover to support rail.
7. Remove nuts (x2), RH rear heel board to body. Remove heel board.
8. Remove nuts/washers (x2), securing battery cables to battery disconnect switch (see Fig. 1).
9. Release battery cables (x4) from battery disconnect switch. Note fitted position of spacer washer between
RH battery cables.
10. Remove Torx screws (x3), securing battery disconnect switch to mounting bracket. 11. Release multiplug from brac
ket, disconnect multiplug,
remove battery disconnect switch.
12. Remove battery cable bolts from battery disconnect switch.
Installation
1. Install battery cable bolts in disconnect switch.
2. Position battery disconnect switch, connect multiplug, install multiplug on bracket.
3. Install and torque tighten Torx screws (x3).
4. Install battery cables (x4), install washers (x2), install and torque tighten nuts (x2).
5. Install RH rear heel board, install and tighten screws (x2) and nuts (x2).
6. Position rear carpet, install on studs (x2).
7. Connect vehicle battery.
8. Install panel assembly - quarter trim middle - RH (see Workshop Manual procedure 01.05.CL Panel Assembly
- Quarter Trim Middle Section - RH - Renew).
9. Install rear compartment cover.
10. Power RH seat to original position.
Battery Conditioner-Renew
Removal
1. Disconnect vehicle battery.
2. Remove carpet - RH side luggage compartment (see Workshop Manual procedure 01.05.FB Carpet
Assembly - Luggage Compartment - Side - RH - Renew).
3. Remove tyre sealant bottle.
4. Remove mobility kit from storage rack.
5. Remove bolt, loosen nuts (x2), power socket bracket.
6. Slide luggage compartment fusebox rearwards, release
from mounting bracket.
7. Release terminal cover, remove nut securing main battery lead to fusebox.
8. Release harness clips (x2) from power socket bracket.
Torque Figures
DescriptionNm.lb. / ft.
Battery clamp
Battery Terminals 9
97
7
Repair Operation Time (ROT)
Warning
To prevent damage to electrical components, always disconnect the vehicle battery when working on the
vehicle's electrical system. The earth lead ( - ve) must be
disconnected first and reconnected last.
Fig. 1
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Warning
Always connect the earth (- ve) terminal last.
Repair Operation Time (ROT)
ItemCode
Battery Conditioner-Renew 14.01.DL
Warning
To prevent damage to elec trical components, always
disconnect the vehicle battery when working on the
vehicle's electrical system. The earth lead ( - ve) must be
disconnected first and reconnected last.

Battery System (14.01)
Power Supply (14.00)
May 2007 Workshop Manual 14-1-5
9. Disconnect harness multiplu g, battery conditioner (see
Fig. 1).
10. Remove screws (x2), battery conditioner to power socket bracket. Remove battery conditioner (see Fig. 2).
Installation
1. Install battery conditioner, install and tighten screws (x2).
2. Connect multiplug, battery conditioner.
3. Install harness clips (x2) on power socket bracket.
4. Position main battery cable, install and torque tighten nut, install terminal cover.
5. Install fusebox in mounting bracket.
6. Install harness clips (x2) on power socket bracket.
7. Position power socket bracket, install bolt. torque tighten bolt and nuts (x2).
8. Install mobility kit.
9. Install tyre sealant bottle.
10. Install carpet - RH side luggage compartment. (see Workshop Manual procedure 01.05.FB Carpet
Assembly - Luggage Compartment - Side - RH - Renew). 11. Connect vehicle battery.
Battery Disconnect Switch to Bulkhead
Stud Cable Assembly-Renew
Removal
1. Remove RH seat (see Workshop Manual procedure
01.10.AA Seat Assembly - Front - RH - Remove for
Access and Refit).
2. Disconnect vehicle battery.
3. Remove screws (x4) front fl oor carpet retaining brackets
(x2) to floor.
4. Release RH front floor car pet from fasteners (x4),
remove carpet.
5. Release RH rear floor carpet from fasteners (x4), remove
carpet.
6. Release and remove RH tunnel carpet.
7. Remove moulding assembly - quarter trim upper RH (see Workshop Manual procedure 01.05.CX Moulding
Assembly - Quarter Trim Upper - RH - Renew).
8. Remove nuts (x2) and scre ws (x2) securing RH heel
board to body and support rail. Remove heel board.
9. Remove nuts (x3) and scre ws (x6) securing CEM cover
plate to body, remove cover plate.
10. Remove screws (x2) securing CEM to mounting bracket. Position CEM aside.
11. Release cover, remove nut securing battery cables (x3)
to bulkhead stud (see Fig. 1).
Fig. 1
Fig. 2
Warning
Always connect the earth (- ve) terminal last.
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Repair Operation Time (ROT)
Warning
To prevent damage to electrical components, always disconnect the vehicle battery when working on the
vehicle's electrical system. The earth lead ( - ve) must be disconnected first an d reconnected last.
$

Battery System (14.01)
Power Supply (14.00)14-1-6 Workshop Manual May 2007
12. Note fitted position and remove battery cables (x3) from bulkhead stud.
13. Release clips (x2) securi ng main harness to body.
14. Release battery cable clips (x22) from body.
15. Remove nut securing battery cable to BDS, release cable
from BDS (see Fig. 2).
16. Remove power amplifier assembly (see Workshop Manual procedure 15.01.AB Power Amplifier - Renew).
17. Remove tyre sealant bottle.
18. Remove mobility kit from storage rack.
19. Release terminal cover, remove nut securing battery
cable to luggage compartmen t fuse box (see Fig. 3).
20. Release battery cable from fuse box and clips (x7).
21. Manoeuvre and remove battery cable from vehicle.
Installation
1. Manoeuvre and install battery cable in vehicle.
2. Connect battery cable to luggage compartment fuse box, install and torque tighten nut. Install terminal
cover.
3. Install clips (x7), secure battery cable to body. 4. Install mobility kit in storage rack.
5. Install tyre sealant bottle.
6. Install power amplifier assembly (see Workshop Manual
procedure 15.01.AB Power Amplifier - Renew).
7. Connect battery cable to BDS, install and torque tighten nut.
8. Install clips (x22), secure battery cable to body.
9. Secure main harness to body with clips (x2).
10. Connect battery cables (x3) to bulkhead stud, install and torque tighten nut. Install terminal cover.
11. Position CEM to mounting bracket, install and torque tighten screws (x2).
12. Install CEM cover plate, Install and torque tighten nuts (x3) and screws (x6).
13. Install RH heel board, install and torque tighten nuts (x2) and screws (x2).
14. Install moulding assembly - quarter trim upper RH (see
Workshop Manual procedure 01.05.CX Moulding
Assembly - Quarter Trim Upper - RH - Renew).
15. Install and secure tunnel carpet RH.
16. Install RH rear floor carpe t and secure with fasteners
(x4).
17. Install RH front floor carpet and secure with fasteners (x4).
18. Install front floor carpet retaining brackets (x2)
19. Install RH seat (see Workshop Manual procedure 01.10.AA Seat Assembly - Front - RH - Remove for
Access and Refit).
20. Connect vehicle battery.
Battery to Battery Disconnect Switch
Cable Assembly-Renew
Removal
1. Power RH seat fully forward.
2. Remove rear compartment cover.
3. Disconnect vehicle battery.
4. Remove panel assembly - quar ter trim middle - RH (see
Workshop Manual procedure 01.05.CL Panel Assembly
- Quarter Trim Middle Section - RH - Renew).
5. Release rear carpet studs (x2), move carpet aside.
6. Remove screws (x2), battery compartment cover to support rail.
Fig. 1
Fig. 2
Fig. 3
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Warning
Always connect the earth (- ve) terminal last.
Repair Operation Time (ROT)
ItemCode
Battery to Battery Disconnect Switch
Cable Assembly-Renew 14.01.EF
Warning
To prevent damage to elec trical components, always
disconnect the vehicle battery when working on the
vehicle's electrical system. The earth lead ( - ve) must be disconnected first and reconnected last.

Battery System (14.01)
Power Supply (14.00)
May 2007 Workshop Manual 14-1-7
7. Remove nuts (x2), battery compartment cover to body.
Remove cover.
8. Loosen terminal nut, disconnect main battery cable (see Fig. 1).
9. Remove nut and washer securing battery cable to battery disconnect switch.
10. Release cable and main battery cable from battery disconnect switch.
11. Loosen terminal nut, disconnect main battery cable (positive), remove cable.
Installation
1. Install battery cables (x2), install washer, install and torque tighten nut.
2. Install battery compartment cover, install and tighten screws (x2) and nuts (x2).
3. Position rear carpet, install on studs (x2).
4. Connect vehicle battery.
5. Install panel assembly - quar ter trim middle section - RH
(see Workshop Manual pr ocedure 01.05.CL Panel
Assembly - Quarter Trim Mi ddle Section - RH - Renew).
6. Install rear compartment cover.
7. Power RH seat to original position.
Bulkhead to Starter Jump Terminal
Harness-Renew
Removal
1. Disconnect vehicle battery.
2. Remove terminal jump start (see Workshop Manual procedure 14.01.EA Terminal - Jump Start - Renew).
3. Raise vehicle on ramp.
4. Remove RH front wheel arch liner (see Workshop Manual procedure 01.02.GB Wheel Arch Liner - Front -
RH - Renew).
5. Release battery cable clips (x6), from body (see Fig. 1).
6. Release battery cable clips (x2) from screen washer reservoir (see Fig. 2).
7. Release cover, remove nut securing harness to bulkhead stud.
8. Release harness from bulkhead stud, manoeuvre and remove harness.
Fig. 1
Warning
Always connect the earth (- ve) terminal last.
Repair Operation Time (ROT)
$
Warning
To prevent damage to electrical components, always
disconnect the vehicle battery when working on the
vehicle's electrical system. The earth lead ( - ve) must be disconnected first an d reconnected last.
Fig. 1
Fig. 2
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