fuel pressure ASTON MARTIN V8 VANTAGE 2010 User Guide

Fuel Charging System (03.04)
Engine (03.00)3-4-2 Workshop Manual May 2007
Maintenance
Fuel Rails - Renew
Removal
1. Depressurise fuel rail (see Workshop Manual procedure
10.01.EK Fuel System - Depressurise).
2. Coolant drain (see Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
3. Remove cross brace (bolts x4).
Removal RH Side
4. Remove coil cover.
5. Disconnect breather hose (quick fit) move aside.
6. Release harness fir tree clips (x3) from cylinder head and move aside.
7. Remove fuse box bracket fixings (bolt and nut) (allows movement).
8. Remove ECM (see Workshop Manual procedure 03.14.BB Engine Control Module - RH Renew).
9. Remove battery lead (1x nu t and rubber cover) from
fuse box (2x leads).
10. Remove multiplugs (x10) from fusebox.
11. Remove earth terminal (1x nut and rubber cover) from fusebox.
12. Remove fuse box from bracket (bolt x2).
13. Release harness fir tree clips (x3) from engine bracket.
14. Feed harness from inner wing and over engine to gain access to cam cover.
15. Remove purge pipe P-clip (bolt x1) and move pipe
aside.
16. Remove harness bracket from engine (bolts x2, nut x1).
17. Release fuel feed hose from rail (clip x1) and move aside.
18. Disconnect heater hose from pipe (quick fit).
19. Release heater hose (clips x2) and EGR vacuum line (clips x2) from bracket.
20. Release harness from coolant pipe bracket (fir tree x3).
21. Disconnect EGR (x1), fuel rail pressure sensor (x1) and injector multiplugs (x4), move harness aside.
22. Remove coolant pipe bracket (nuts x2 and bolts x2).
23. Disconnect EGR vac pipe from sensor and manifold, move aside.
Removal LH Side
24. Remove corner cross brace.
25. Remove coil cover.
26. Disconnect breather hoses from cam cover (x2) for access.
27. Disconnect purge line from manifold (quickfit) and support clip for access. 28. Disconnect heater hose
from pipe (quick fit).
29. Release heater hose (x2) and throttle body hose (x2) from support bracket.
30. Remove booster hose from manifold and support clip.
31. Remove harness support bracket (bolt x1, nut x2) release harness clips (fir tree x3).
32. Release pipe support bracket (nuts x2, bolts x2) move aside.
33. Disconnect injector multiplugs (x4).
34. Unclip injector harness from cam cover (x2).
35. Disconnect IAT multiplug.
36. Disconnect breather hose from manifold (quickfit).
Removal - Manifold From Vehicle
37. Disconnect manifold heating hoses (x2).
38. Disconnect throttle body multiplug and harness clip.
39. Disconnect breather pipe qu ickfits (x2) from air cleaner
duct.
40. Disconnect air cleaner duct (clip x1).
41. Disconnect EGR vacuum hose.
42. Disconnect EGR pipe union and tie aside.
43. Remove manifold bolts (x 10).
44. Remove bolts (x2) bracket to manifold (rear).
45. Move manifold (2x people) forward, remove bolt for purge line T-clip, remove manifold.
46. Remove gaskets and clean mating faces.
Removal - Manifold Parts
47. Remove Injector to rail clips (x8) (see Figure 1).
Figure 1
48. Remove fuel rail (bolts x4).
Installation
1. Install clips and new O-rings to injectors.
2. Install fuel rail (bolts x4).
Repair Operation Time (ROT)
WAR NI NG
THE INTAKE MANIFOLD IS HEAVY. TO AVOID
PERSONAL INJURY OR DAMAGE TO THE INTAKE MANIFOLD, INTAKE MANIFOLD REMOVAL /
ISTALLATION IS A TWO PERSON OPERATION.
A030113

Fuel Charging System (03.04)
Engine (03.00)
May 2007 Workshop Manual 3-4-3
Installation Manifold to Vehicle
3. Install new gaskets to cylinder block (glue in place).
4. Install manifold (allowing access to install bolt for purge
line P-clip).
5. Install manifold bolts (x10) (torque and tightening sequence).
6. Install bolts (x2) bracket to manifold (rear).
7. Connect EGR pipe union.
8. Connect EGR vacuum hose.
9. Connect air cleaner duct (clip x1).
10. Connect breather pipe quickf its (x2) to air cleaner duct.
11. Connect throttle body multiplug and harness clip.
12. Connect manifold heating hoses (x2).
Installation RH Side
13. Connect EGR vac pipe to sensor and manifold.
14. Install coolant pipe bracket (bolt x2, nut x2).
15. Connect EGR (x1), fuel rail pressure sensor (x1) and
injector multiplugs (x4).
16. Refit harness to coolant pipe bracket (fir tree x3).
17. Connect heater hose to pipe (quick fit).
18. Refit heater hose (clipx2) and EGR vacuum lines (clips x2) to bracket.
19. Install fuel feed pipe.
20. Install purge pipe P-clip.
21. Install harness bracket to engine.
22. Feed harness into inner wing area.
23. Install fusebox to bracket.
24. Install earth lead to fusebox.
25. Install battery lead to fusebox (1x nut and rubber cover).
26. Install multiplugs to fuse box.
27. Install fusebox bracket fixings.
28. Refit harness fir tree clips to cylinder head.
29. Refit engine breather hose.
30. Install VVT solenoid multip lug, position coil and CMP
harness (1x edge clip).
31. Install ECM (see Workshop Manual procedure 03.14.BB XREF: 319 Engine Control Module - RH Renew
32. Install coil cover.
Installation LH Side
33. Connect breather hose to manifold (quickfit).
34. Connect IAT multiplug.
35. Unclip injector harness from cam cover (x2).
36. Connect injector multiplugs (x4).
37. Install pipe support bracket (nuts x2, bolts x2).
38. Install harness support bracket (bolt x1, nut x2) release harness clips (fir tree x3).
39. Connect booster hose to manifold and support clip. 40. Connect heater hose from pipe (quick fit).
41. Install heater hose (x2) and throttle body hose (x2) from
support bracket.
42. Connect purge line to manifold and into support clip.
43. Connect breather hoses (x2) to cam cover.
44. Install coil cover.
45. Install corner cross brace (t orque bolts with vehicle on
level ground).
46. Refill coolant (see Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
47. Install cross brace (torque bolts with vehicle on level
ground).
Fuel Injection Pressure Sensor - Renew
Removal
1. Depressurise fuel rail (see Workshop Manual procedure 10.01.EK Fuel System - Depressurise).
2. Disconnect vacuum hose.
3. Remove sensor from fuel rail (bolts x2).
4. Disconnect multiplug.
Installation
1. Install sensor to fuel rail (bolts x2) (torque).
2. Connect multiplug.
3. Connect vacuum hose.
Fuel Temperature Sensor - Renew
Removal
1. Depressurise fuel rail (see Workshop Manual procedure 10.01.EK Fuel System - Depressurise).
2. Disconnect vacuum hose.
3. Remove sensor from fuel rail (bolts x2).
4. Disconnect multiplug.
Installation
1. Install sensor to fuel rail (bolts x2) (torque).
2. Connect multiplug.
3. Connect vacuum hose.
WA R N I N G
THE INTAKE MANIFOLD IS HEAVY. TO AVOID
PERSONAL INJURY OR DAMAGE TO THE INTAKE MANIFOLD, INTAKE MANIFOLD REMOVAL /
ISTALLATION IS A TWO PERSON OPERATION.
Installation Not Handed
Repair Operation Time (ROT)
Repair Operation Time (ROT)

Fuel Charging System (03.04)
Engine (03.00)3-4-4 Workshop Manual May 2007
Fuel Injector Engine Set - Renew
Removal
1. Remove LH injectors (see Workshop Manual procedure
03.04.GH Injector - Fuel - LH Bank - Engine Set -
Renew).
2. Remove coils (see Work shop Manual procedure
03.07.HC Coil Assembly - Engine Set - RH - Renew).
3. Disconnect breather hose (quick fit) move aside.
4. Release harness fir tree clips (x3) from cylinder head and move aside.
5. Remove fuse box bracket fixings (bolt and nut) (allows movement).
6. Remove ECM (see Workshop Manual procedure 03.14.BB Engine Control Module - RH Renew).
7. Remove battery lead (1x nu t and rubber cover) from
fuse box (2x leads).
8. Remove multiplugs (x10) from fusebox.
9. Remove earth terminal (1x nut and rubber cover) from
fusebox.
10. Remove fuse box from bracket (bolt x2).
11. Release harness fir tree clips (x3) from engine bracket.
12. Feed harness from inner wing and over engine to gain access to cam cover.
13. Remove purge pipe P-clip (bolt x1) and move pipe
aside.
14. Remove harness bracket from engine (bolts x2, nut x1).
15. Release fuel feed hose from rail (clip x1) and move aside.
16. Disconnect heater hose from pipe (quick fit).
17. Release heater hose (clips x2) and EGR vacuum line (clips x2) from bracket.
18. Release harness from coolant pipe bracket (fir tree x3).
19. Disconnect EGR (x1), fuel rail pressure sensor (x1) and injector multiplugs (x4), move harness aside.
20. Remove coolant pipe bracket (nuts x2 and bolts x2).
21. Disconnect EGR vac pipe from sensor and manifold, move aside. 22. Remove Injector to rail clips (see Figure 1).
Figure 1
23. Remove fuel rail bolts (x2) and lift rail (tie aside) (see
Figure 2).
Figure 2
24. Remove injectors from manifold.
Installation
1. Install clips on to new injectors then fit injectors into manifold.
2. Install rail onto injectors (taking care each injector is aligned correctly and the clip seats properly) and fit bolts
(x2) (torque).
3. Connect EGR vac pipe to sensor and manifold.
4. Install coolant pipe bracket (bolt x2, nut x2).
5. Connect EGR (x1), fuel rail pressure sensor (x1) and
injector multiplugs (x4).
6. Refit harness to coolant pipe bracket (fir tree x3).
7. Connect heater hose to pipe (quick fit).
8. Refit heater hose (clipx2) and EGR vac lines (clips x2) to bracket.
9. Install fuel feed pipe.
10. Install purge pipe P-clip.
11. Install harness bracket to engine.
12. Feed harness into inner wing area.
13. Install fusebox to bracket.
14. Install earth lead to fusebox.
15. Install battery lead to fusebox (1x nut and rubber cover).
16. Install multiplugs to fuse box.
Repair Operation Time (ROT)
A030452
A030113A

Fuel Charging System (03.04)
Engine (03.00)
May 2007 Workshop Manual 3-4-5
17. Install fusebox bracket fixings.
18. Refit harness fir tree clips to cylinder head.
19. Refit engine breather hose.
20. Install VVT solenoid multiplug, position coil and CMP
harness (1x edge clip).
21. Install LH injectors (see Workshop Manual procedure
03.04.GH Injector - Fuel - LH Bank - Each - Renew).
22. Install ECM (see Workshop Manual procedure 03.14.BB Engine Control Module - RH Renew).
1. Install coils (see Workshop Manual procedure 03.07.HC
Coil Assembly - Engine Set - RH - Renew).
Fuel Injector - Each - LH Bank - Renew
Removal
1. Depressurise fuel rail (see Workshop Manual procedure 10.01.EK Fuel System - Depressurise).
2. Remove corner cross brace.
3. Disconnect breather hoses from cam cover (x2) for access.
4. Disconnect purge line from manifold (quickfit) and support clip for access.
5. Disconnect heater hose from pipe (quick fit).
6. Release heater hose (x2) and throttle body hose (x2) from support bracket.
7. Remove booster hose from manifold and support clip.
8. Remove harness support bracket (bolt x1, nut x2) release harness clips (fir tree x3).
9. Release pipe support bracket (nuts x2, bolts x2) move aside.
10. Disconnect IAT multiplug.
11. Disconnect injector multiplugs (x4).
12. Unclip injector harness from cam cover (x2).
13. Disconnect breather hose from manifold (quickfit).
14. Remove Injector to rail clip (for injector to be changed).
15. Remove fuel rail bolts (x2) and lift rail with remaining injectors (tie aside).
16. Remove injector from manifold.
Installation
1. Install new O-rings to remaining injectors (lube O-rings).
2. Install clip to new injector then injector into rail.
3. Install rail (with injectors) to manifold (bolt x2) (torque) (taking care each injector is aligned correctly).
4. Connect breather hose to manifold (quickfit).
5. Connect IAT multiplug.
6. Unclip injector harness from cam cover (x2).
7. Connect injector multiplugs (x4).
8. Install pipe support br acket (nuts x2, bolts x2). 9. Install harness support bracket (bolt x1, nut x2) release
harness clips (fir tree x3).
10. Connect booster hose to manifold and support clip.
11. Connect heater hose from pipe (quick fit).
12. Install heater hose (x2) and throttle body hose (x2) from support bracket.
13. Connect purge line to manifold and into support clip.
14. Connect breather hoses (x2) to cam cover.
15. Install corner cross brace (t orque bolts with vehicle on
level ground).
Fuel Injector - Each - RH Bank - Renew
Removal
1. Depressurise fuel rail (see Workshop Manual procedure 10.01.EK Fuel System - Depressurise).
2. Disconnect breather hose (quick fit) move aside.
3. Release harness fir tree clips (x3) from cylinder head and move aside.
4. Remove fuse box bracket fi xings (bolt and nut) (allows
movement).
5. Remove ECM (see Workshop Manual procedure 03.14.BB Engine Control Module - RH Renew).
6. Remove battery lead (1x nut and rubber cover) from fuse box (2x leads).
7. Remove multiplugs (x10) from fusebox.
8. Remove earth terminal (1x nut and rubber cover) from fusebox.
9. Remove fuse box from bracket (bolt x2).
10. Release harness fir tree clips (x3) from engine bracket.
11. Feed harness from inner wing and over engine to gain access to cam cover.
12. Remove purge pipe P-clip (bolt x1) and move pipe aside.
13. Remove harness bracket from engine (bolts x2, nut x1).
14. Release fuel feed hose from rail (clip x1) and move aside.
15. Disconnect heater hose from pipe (quick fit).
16. Release heater hose (clips x2) and EGR vacuum line
(clips x2) from bracket.
17. Release harness from coolan t pipe bracket (fir tree x3).
18. Disconnect EGR (x1), fuel rail pressure sensor (x1) and injector multiplugs (x4), move harness aside.
19. Remove coolant pipe bracket (nuts x2 and bolts x2).
20. Disconnect EGR vac pipe from sensor and manifold, move aside.
21. Remove Injector to rail clip (for injector to be changed).
22. Remove fuel rail bolts (x2) and lift rail with remaining injectors (tie aside).
23. Remove injector from manifold.
Repair Operation Time (ROT)
Repair Operation Time (ROT)

Fuel Charging System (03.04)
Engine (03.00)3-4-6 Workshop Manual May 2007
Installation
1. Install new O-rings to remaining injectors (lube O-ringP-
clips).
2. Install clip to new injector then injector into rail.
3. Install rail (with injectors) to manifold (bolt x2) (torque)
(taking care each injector is aligned correctly).
4. Connect EGR vac pipe to sensor and manifold.
5. Install coolant pipe bracket (bolt x2, nut x2).
6. Connect EGR (x1), fuel rail pressure sensor (x1) and injector multiplugs (x4).
7. Refit harness to coolant pipe bracket (fir tree x3).
8. Connect heater hose to pipe (quick fit).
9. Refit heater hose (clipx2) and EGR vacuum lines (clips
x2) to bracket.
10. Install fuel feed pipe.
11. Install purge pipe P-clip.
12. Install harness bracket to engine.
13. Feed harness into inner wing area.
14. Install fusebox to bracket.
15. Install earth lead to fusebox.
16. Install battery lead to fusebox (1x nut and rubber cover).
17. Install multiplugs to fuse box.
18. Install fusebox bracket fixings.
19. Refit harness fir tree clips to cylinder head.
20. Refit engine breather hose.
21. Install VVT solenoid multiplug, position coil and CMP harness (1x edge clip).
22. Install ECM (see Workshop Manual procedure 03.14.BB Engine Control Module - RH Renew).
Engine Set - Fuel Injector - LH Bank -
Renew
Removal
1. Depressurise fuel rail (see Workshop Manual procedure 10.01.EK Fuel System - Depressurise).
2. Remove corner cross brace.
3. Disconnect breather hoses from cam cover (x2) for access.
4. Disconnect purge line from manifold (quickfit) and
support clip for access.
5. Disconnect heater hose from pipe (quick fit).
6. Release heater hose (x2) and throttle body hose (x2)
from support bracket.
7. Remove booster hose from manifold and support clip.
8. Remove harness support bracket (bolt x1, nut x2) release harness clips (fir tree x3). 9. Release pipe support bracket
(nuts x2, bolts x2) move
aside.
10. Disconnect IAT multiplug.
11. Disconnect injector multiplugs (x4).
12. Unclip injector harness from cam cover (x2).
13. Disconnect breather hose from manifold (quickfit).
14. Remove Injector to rail clips.
15. Remove fuel rail bolts (x2) and lift rail (tie aside).
16. Remove injectors from manifold.
Installation
1. Install clips on to new injectors then fit injectors into manifold.
2. Install rail onto injectors (taking care each injector is aligned correctly and the clip seats properly) and fit bolts
(x2) (torque).
3. Connect breather hose to manifold (quickfit).
4. Connect IAT multiplug.
5. Unclip injector harness from cam cover (x2).
6. Connect injector multiplugs (x4).
7. Install pipe support bracket (nuts x2, bolts x2).
8. Install harness support bracket (bolt x1, nut x2) release harness clips (fir tree x3).
9. Connect booster hose to manifold and support clip.
10. Connect heater hose from pipe (quick fit).
11. Install heater hose (x2) and throttle body hose (x2) from support bracket.
12. Connect purge line to manifold and into support clip.
13. Connect breather hoses (x2) to cam cover.
14. Install corner cross brace (torque bolts with vehicle on level ground).
Engine Set - Fuel Injector - RH Bank -
Renew
Removal
1. Depressurise fuel rail (see Workshop Manual procedure 10.01.EK Fuel System - Depressurise
2. Disconnect breather hose (quick fit) move aside.
3. Release harness fir tree clips (x3) from cylinder head and move aside.
4. Remove fuse box bracket fixings (bolt and nut) (allows movement).
5. Remove ECM (see Workshop Manual procedure 03.14.BB Engine Contro l Module - RH Renew).
6. Remove battery lead (1x nut and rubber cover) from fuse box (2x leads).
7. Remove multiplugs (x10) from fusebox.
Repair Operation Time (ROT)
Repair Operation Time (ROT)
ItemCode
Engine Set-Fuel Injector-RH Bank-
Renew LHD
03.04.GK
Engine Set-Fuel Injector-RH Bank-
Renew RHD
03.04.GP

Fuel Charging System (03.04)
Engine (03.00)
May 2007 Workshop Manual 3-4-7
8. Remove earth terminal (1x nut and rubber cover) from
fusebox.
9. Remove fuse box from bracket (bolt x2).
10. Release harness fir tree clips (x3) from engine bracket.
11. Feed harness from inner wing and over engine to gain access to cam cover.
12. Remove purge pipe P-clip (bolt x1) and move pipe aside.
13. Remove harness bracket from engine (bolts x2, nut x1).
14. Release fuel feed hose from rail (clip x1) and move aside.
15. Disconnect heater hose from pipe (quick fit).
16. Release heater hose (clips x2) and EGR vacuum line (clips x2) from bracket.
17. Release harness from coolant pipe bracket (fir tree x3).
18. Disconnect EGR (x1), fuel ra il pressure sensor (x1) and
injector multiplugs (x 4), move harness aside.
19. Remove coolant pipe bracket (nuts x2 and bolts x2).
20. Disconnect EGR vac pipe from sensor and manifold,
move aside.
21. Remove Injector to rail clips.
22. Remove fuel rail bolts (x2) and lift rail (tie aside).
23. Remove injectors from manifold.
Installation
1. Install clips on to new injectors then fit injectors into manifold.
2. Install rail onto injectors (taking care each injector is aligned correctly and the clip seats properly) and fit bolts
(x2) (torque).
3. Connect EGR vac pipe to sensor and manifold.
4. Install coolant pipe bracket (bolt x2, nut x2).
5. Connect EGR (x1), fuel rail pressure sensor (x1) and
injector multiplugs (x4).
6. Refit harness to coolant pipe bracket (fir tree x3).
7. Connect heater hose to pipe (quick fit).
8. Refit heater hose (clipx2) and EGR vac lines (clips x2) to bracket.
9. Install fuel feed pipe.
10. Install purge pipe P-clip.
11. Install harness bracket to engine.
12. Feed harness into inner wing area.
13. Install fusebox to bracket.
14. Install earth lead to fusebox.
15. Install battery lead to fusebox (1x nut and rubber cover).
16. Install multiplugs to fuse box.
17. Install fusebox bracket fixings.
18. Refit harness fir tree clips to cylinder head.
19. Refit engine breather hose.
20. Install VVT solenoid multip lug, position coil and CMP
harness (1x edge clip).
21. Install ECM (see Workshop Manual procedure 03.14.BB Engine Control Module - RH Renew).

Evaporative Emissions (03.13)
Engine (03.00)
May 2007 Workshop Manual 3-13-1
Engine (03.00)
Evaporative Emissions (03.13)
Description
The evaporative loss system prevents escape of fuel vapours
into the atmosphere.
Fuel vapour is displaced from the fuel tank during filling.
Vapour is also displaced due to fuel evaporation in higher
temperatures. Displaced fuel vapour is absorbed in the
carbon canister filter located on top of the fuel tank.
During normal engine running, absorbed fuel vapour is
purged from the carbon canisters and mixed with the normal
fuel/air charge in the inlet manifold.
System Operation
Displaced fuel vapour leaves the fuel tank via the normally
open fill level vent valve and the roll over valves. It passes
through the carbon canister where fuel hydrocarbons are
absorbed. Clean air leaves the system via the normally open
canister vent valve. This valve is only closed during
diagnostic pressure testing of the fuel system.
During normal engine ru nning, the single vapour
management valve in the engine bay is periodically opened
allowing fresh air flow into th e open canister vent valve,
through the carbon canister, through the vapour
management valve and into the primary inlet manifold. This
fresh air flow progressively purg es any absorbed fuel vapour
from the carbon canister.

Anti-lock Braking System (ABS) (06.09)
Brake system (06.00)
6-9-2 Workshop Manual Issue 4, November 2008
difference between the ideal and actual response within a
tolerance band. This directly influences the forces on the
tires to generate a corrective yaw moment to reduce the side
forces of the tires where appropriate
System Overview
The DSC system embraces capabilities far beyond that of
ABS, or ABS and traction control combined, while relying on
the components of these systems. It also incorporates these
additional sensors for measur ing the vehicle’s motion and
brake system pressure:
Ya w r a t e s e n s o r - located centrally on the transmission
tunnel.
Lateral acceleration sensor - integrated with the yaw rate
sensor.
Steering angle sensor - located on the upper steering
column.
Pressure transducer - located on master cylinder.
The ABS / DSC module supports data exchange with other
vehicle electronic systems via the CAN network; the module
also enables diagnostic interrogation using WDS.
The following components register driver demand and the
ABS / DSC module processes their signals as a basis for
defining an ideal response:
PCM - position of accelerator pedal.
Brake master cylinder pressure transducer - driver’s
braking effort.
Steering angle sensor - position of steering wheel.
There are many supplementary parameters also included in
the processing calculations these include the coefficient of
friction and vehicle speed. The ABS / DSC module monitors
these factors based on signals transmitted by the sensors for:
• Wheel speed
• Lateral acceleration
• Brake pressure
• Yaw rate
Using these parameters, the function of the ABS / DSC
module is to determine the current vehicle status based on
the yaw-rate signal and the slip as estimated by the ABS /
DSC module. It then maintains the vehicle response within
a tolerance of the ‘normal’ behaviour, which is easily
controlled by the driver.
In order to generate the desired yaw behaviour the ABS /
DSC module controls the selected wheels using the ABS
hydraulic system and engine control system. In the event of
engine intervention, the ABS / DSC module calculates the
torque which should be supplied by the engine to the
wheels, and relays this request signal to the PCM which
implements the torque request.
The PCM receives signals from the DSC system via the CAN
bus and reduces engine torque as follows:
• The throttle is positioned to provide the requested engine target torque. • During the transient phase of torque reduction caused by
mechanical and combustion delays, other alternative
torque reduction methods are used to provide a quicker
response.
• The ignition is retarded and / or the fuel is cut-off at the injectors at selected cylinders.
• Ignition and fuelling are reinstated when the engine torque reaches the requested value
Operation Summary
• DSC is switched ‘ON’ when the engine is started
• When the system is operating , the DSC light in the instrument cluster will flash, at the rate of twice a second
• DSC can be switched ‘OFF / ON’ by pressing the DSC switch
• The DSC light in the instru ment cluster will illuminate
continuously when the system is switched ‘Off’.
• ‘DSC OFF’ will be displayed in the message centre right to indicate the system has been switched ‘OFF’
• A malfunction in the traction control system will be indicated to the driver by the following:
• The DSC light in the instru ment cluster will illuminate
continuously
• The message ‘DSC NOT AVAILABLE’ will be displayed in the message centre right
• If vehicle speed control is engaged it will automatically disengage when traction control is operating .
Traction Control
Traction control is a function of DSC, and is operated in
association with DSC. Traction control prevents excessive
wheel-spin at standing starts, or during acceleration. Wheel-
spin is usually caused by ex cessive use of the accelerator
pedal, or slippery, loose or bumpy road surfaces. To prevent
excessive wheel-spin and mainta in vehicle stability such
situations are overcome by the intervention of the traction
control system by:
• Braking the driven-wheel when it starts to slip
• And / or adapting the engine torque to a level corresponding to the traction available on the road
surface.
Functional Description
Traction control uses the ABS electronic and mechanical /
hydraulic hardware with additional valves to control the
braking pressure at the calipe rs. An engine interface also
enables the engine to respond to torque reduction requests
from the traction control. As with ABS, the signals from the
wheel-speed sensors are supplied to the ABS module, where
they are used to calculate the wheel-slip of the individual
wheels. Traction control intervention is initiated if the slip at
one of the wheels is excessive.

Anti-lock Braking System (ABS) (06.09)
Brake system (06.00)
Issue 4, November 2008 Workshop Manual 6-9-3
Engine Intervention
In the event of wheel-slip the ABS / DSC module calculates
the torque, which should be applied by the engine to reduce
the wheel-slip (this torque does not exceed driver demand).
Engine torque reduction is then requested from the PCM via
the CAN bus. The PCM, in response to these signals, reduces
engine torque by controlling the ignition and fuelling. A
traction control gearshift pattern is automatically selected
within the automatic transmission software whenever
traction control is active.
Brake Intervention
This function operates by increasing the pressure in the
brake caliper of the slipping wheel, by closing the separation
valve and the inlet valve of the non-slipping wheel and
running the modulator pump. This takes fluid from the fluid
reservoir via the non-actuated master cylinder and
pressurizes the brake caliper. The pressure is modulated at
the caliper via the inlet and outlet valves to achieve the
desired wheel-slip target to maximize traction.
ABS / DSC Circuit
Specifications
SR,05UR,05YR,0.5NR,0.5
WR,05NR,05
YG,05WG,05
YU,05WU,05
W,05N,05
W,0.5U,0.5R,0.5
P,0.5Y,0.5
B,0.5WG,0.5GB,0.5
B,0.5BG,0.5
GW,0.5
P,0.5
U,0.5
U,3.0
BK,1.0BK,1.0
P,0.35P,0.35P,0.35 U,3.0
WG,05YG,05
WU,05
SR,05UR,05YR,0.5NR,0.5
WG,05YG,05
WU,05
WG,05YG,05
WU,05YU,05YU,05YU,05Module-ABS
OBD2-Body (B)
Earth-Module ABSEarth-Module ABS
C1184-18C2410-6
Sensor-Brake Pressure
Sensor-Brake Pedal Travel
Sensor-Rear ABS-LH
C0746-7C0746-6
C0746-5
Switch-Brake Boost
Sensor-Yawrate / Acceleration
C2411-6C2411-5C2411-4
C2411-3
C0144-7C0144-3
C0144-2
Sensor-Front ABS-LH
Sensor-Front ABS-RH
C2410-10C2410-9
C2410-8
Sensor-Rear ABS-RH
C0746-4C0144-1C2410-7
C0877-7
K-LINESPL50-KL/FA
C0362-1C0434-1
C2444-2
SIGC2444-1
GND
C2444-3
SENSP
C2446-2
GNDC2446-1
SENSPT
C2446-3
SIG
C0501-47
GNDC0501-16
GND
C0501-2K-LINE
C0501-24
GND
C0501-31
PWM
C0501-30
NC
C0501-25
CAN HS-
C0501-28
SIGC0501-27
NO
C0501-29
CAN HS+C0501-6
CLUST_SP
C0501-17
PWR
C0501-5
GND
C0501-32BATT FEED
C0501-7
SENSPT
C0501-3 SIG
C0501-20 SIGC0501-19
GND
C0501-18 SENSP
C0501-4IGN FEED
C0501-46
F/L/GNDC0501-45
F/L/SIG
C0501-42
R/R/GNDC0501-43
R/R/SIG
C0501-36
R/L/SIG
C0501-34
F/R/SIGC0501-33
F/R/GND
C0501-1
BATT FEEDC0501-37
R/L/GND
C2448-5
C2448-3
C2448-2C2448-1
C2448-4
C1656-3 CLUS_SPC1656-2
CAN HS+C1656-1 CAN HS-
C1656-5
GND
C0516-2-C0516-1+
C0517-2
-C0517-1+
C0502-1
+
C0503-2 -C0503-1+
C0502-2 -
Sensor
Steering Angle
Sheet 61
F4
30.0 AmpsRelay 1
Underbonnet Fusebox
DIODE 1
F28
10.0 Amps
F20
30.0 Amps
F19
30.0 Amps
Earth
Steering Angle
Sensor
C0576-1
C0577-4C2608-1 VBATT
C0573-2
C0571-3
C0573-3
C0578-8SPL5-VIGN/FOR
C1672-5
VPWRC1672-8
GND
011-6-003
Oils/Greases
Brake FluidCastrol Response Super Dot 4
Torque Figures
DescriptionNm.lb. / ft.
Modulator to Bracket 5 4
Modulator / Bracket to body 9 7
Brake hose unions 17 1413
10.5
17 Nm. 17 Nm.
17 Nm.
14 Nm.
14 Nm. 14 Nm.

Fuel Tank and Lines (10.01)
Fuel (10.00)10-1-2 Workshop Manual May 2007
Fuel (10.00)
Fuel Tank and Lines (10.01)
Description
This vehicle uses a return less fuel system in which the fuel pump, controlled by the fuel pump driver module, is run to
supply fuel through one in-tank filter to the fuel rail (Refer to ’Fuel Charging System (03.04)’, page 3-5-1). A pressure senso r
and a temperature sensor are fitted on th e primary fuel rail. The fuel pump speeds are varied as required to regulate the
fuel pressure in the fuel rails.
$GGQRLQLOOXVWUDWRU
6DYHDVSGI
5HRSHQLQSKRWRVKRSDQGVDYHDVGSLSGI
3XPS
)XHO)LOWHU
)XHO5DLOV )XHO3XPS
'ULYHU0RGXOH
)LOO/LPLW9HQW9DOYH
(OHFWULFDO
&RQQHFWRU