2010 ASTON MARTIN V8 VANTAGE fuse

Wiring and Circuit Protection (18.01)
Electric Distribution/E lectronic Control (18.00)
18-1-4 Workshop Manual May 2007
How to Read the Circuits
Below is a simple guide to what symbols mean on the circuit
diagrams. For some of the symbols there are descriptions as
to how they function.
Wires
Wires vary in size to allow diffe rent current to be carried. For
example a wire with a diamet er of 0.50mm (This is the
diameter of all the internal copper strands together) will
carry 11A (dependant on ambient temperature) whilst a wire
with a diameter of 2.00mm will carry 25A.
Twisted Wires
The ‘figure of 8’ shown on circuits as below denotes a
twisted wire and shows the wires that are twisted together.
A wire generates a certain amount of ‘electrical noise’ when
a current is passed through it. By twisting the 2 wires
together the ‘electrical noise’ is cancelled out on each wire
by the opposing wire. This is used more on sensors and
audio speakers.

Screened and Twisted Screen Wires
The signals through a wire can be affected by externally
generated electrical noise. To reduce the external
interference the wires are placed inside a conductive sleeve.
One end of the conductive sleeve is always open whilst the
other end can be terminated to a ground, to a component,
or left open.
Boot Fusebox
Fuse/

RelayRatingFunction
F1 5A Spare
F2 20A Spare
F3 30A Heated rear window
F4 20A Spare
F5 30A Spare
F6 20A Spare
F7 5A Battery disconnect switch (BDS) power
F8 20A Spare
F9 20A Tracker
F10 30A Spare
F11 20A Spare
F12 20A Spare
F13 10A Spare
F14 5A Rear parking assistance module (optional)
F15 5A Spare
F16 30A Spare
F17 5A Spare
F18 30A Audio amplifier
F19 5A Spare
F20 10A Canister vent
F21 30A Spare
F22 20A Exhaust by-pass and vacuum pump
Wire numbers have been deleted from the original
engineering circuits. This al lows the type size to be
increased for improved legibil ity of the service circuits.
173 WR 2.0
Wire No.
Colour
Size
908 GU MAPM 05
Wire No.
Colour
MAP (Defines twisted pair)
Size

Wiring and Circuit Protection (18.01)
Electric Distribution/E lectronic Control (18.00)
18-1-8 Workshop Manual May 2007
Relays
Another significant component in the circuits is a relay, this
is in simple terms a switch that operates on the principal of
electromagnetism. Below is the circuit symbol for a typical
relay. The relay shown below is a normally open relay in its
inoperative state i.e The arm is in the open position.
Relays can have either 4 or 5 terminals on the base. The
circuit of the relay is shown on the base or the side of the
housing. There are 2 types of numbering convention for the
relay terminals, both of which are shown below.
Below is a circuit diagram to show the function and
operation of a relay in a simple circuit.
The current from a battery for example flows through the
wires to the high power normally open switch (The arm
between pins 30 & 87A) and the low power coil (The box
between pins 85 & 86). As you can see in the example above
the lamp is in not illuminated, because the switch is open.
For the relay to operate there needs to be current flow
through the low power coil i.e Current in to the coil then
through to an earth. The current passes through the relay coil
and creates a magnetic field, this magnetic field is strong
enough to ‘grab’ the high power normally open switch.
The magnetic field pulls the switch from it’s normally open
contact to a normally closed contact. The normally closed
contact has a path to an earth, in this case it goes through a
lamp. The high power current then flows through the high power
normally open switch through the lamp and then to an earth.
This can be seen more clearly in the diagram below.Lamp
Illuminates
Busbars
A busbar is where a electrical
supply is fed into a conductive
bar, wire or pcb track and various modules or components
‘tap’ into this busbar to draw their required power. The
Central Electronic Module has 4 of these busbars internally,
each of which is supplied from an external power supply,
that supply can be a battery feed, ignition feed or a switched
supply.
The symbol shown below is the symbol used on the circuits
for a busbar, the number inside the box refers to the busbar
number in the Central Electronic Module.
Fuses
A fuse is a device used to protect a module or component
from excessive electrical current which can cause damage or
destroy that module or component. In practice the fuse is
placed in between the power source and the module or
component that is being protected.
The size or ‘Rating’ of the fuse in amps is calculated
according to the power requirements of the module or
component it is protecting with other factors being taken
into consideration. If the rating has been calculated correctly
then the fuse will ‘blow’ when excessive current passes
through it before any harm or permanent damage occurs to
the module or component it is protecting.

Wiring and Circuit Protection (18.01)
Electric Distribution/Electronic Control (18.00)
May 2007 Workshop Manual 18-1-9
In a correctly protected circuit, the fuse is placed ‘ Inline’
between the power source in this case the battery and the
lamp. If the lamp goes ‘short circuit’, a massive current will
begin to flow and the fuse will fail causing an open circuit.
The battery and wiring are protected from over current
damage.
Below is the fuse symbol as shown on the circuit diagrams.
The number above the fuse symbol is the fuse number;
allocated to this fuse. The number below the fuse symbol is
the rating.
Resistors
A resistor is an electronic component that by way of its
construction reduces the current flowing through it. A
resistors unit of measure is the Ohm.
The diagrams below show a resi stor and a variable resistor.
Variable Resistors
A variable resistor works in the same manner as a normal
resistor but the resistance values can fluctuate. The
construction of a variable resi stor depends upon its use and
environment.
One example is for the fuel tank level sensor. The tank full
level is 10 ohms and the tank empty level is 204 ohms, the
resistance will vary between 10 and 204 ohms depending on
how much fuel is in the tank.
Lamps
Below is the symbol for a light bulb, shown below the
symbol is the power of the bulb in watts.
Switches
There are numerous of types of switch, several of examples
are shown below.
Normally Open Switch
2 Position Switch
3 Position Switch
Motors and Pumps
The same symbol is used for a pump or a motor, the
description differentiates between them.
Pump

Wiring and Circuit Protection (18.01)
Electric Distribution/Electronic Control (18.00)
May 2007 Workshop Manual 18-1-11
Maintenance
Forward Harness-Renew
Removal
1. Disconnect vehicle battery.
2. Remove LH headlamp (see Workshop Manual procedure 17.01.AB Headlamp Assembly - LH -
Renew).
3. Remove RH headlamp (see Workshop Manual procedure 17.01.BB Headlamp Assembly - RH -
Renew).
4. Release grommet from body, feed harness from inside of vehicle.
5. Disconnect multiplugs (x2) LH and RH side repeaters.
6. Disconnect multiplugs (x2) LH and RH pad wear indicators.
7. Disconnect multiplug (x2) LH and RH wheel speed sensors.
8. Disconnect multiplugs (x2) LH and RH air flow meters.
9. Disconnect multiplugs (x2) LH and RH headlamp bulb
monitoring resistors.
10. Remove nuts (x6) securing LH and RH earth leads to body (x6).
11. Remove screws (x4) LH and RH harness plate to body and release harness from plate.
12. Remove screen washer reservoir (see Workshop Manual procedure 01.16.DA Reserv oir and Motor Assembly -
Windshield Wash - Renew).
13. Remove fusebox (see Workshop Manual procedure 18.01.KD Fuse Box - Engine Bay - Renew).
14. Disconnect multiplug (x1) purge valve.
15. Disconnect multiplug (x1) ABS modulator.
16. Disconnect multiplug (x1) load level sensor.
17. Disconnect multiplugs (x4) forward harness to cabin harness.
18. Remove wiper motor and linkage (see Workshop Manual procedure 01.16.BA Linkage Assembly - Wiper
- Renew).
19. Remove cross member fr ont latch mounting (see
Workshop Manual procedure 01.14.BD Latch Assembly
- Hood - Renew).
20. Remove nuts (x2) securing earth leads to body (x2).
21. Disconnect multiplug (x1) heated front windshield.
22. Disconnect multiplug PAS sensor.
23. Disconnect multiplugs (x2) A/C compressor. 24. Disconnect multiplug (x1) horn.
25. Release forward harness to engine harness multiplug
(x1) from inner wing and di sconnect multiplugs (x2).
26. Disconnect multiplug (x2) cooling fans.
27. Disconnect multiplug (x1) ambient air temperature sensor.
28. Disconnect multiplugs (X2) crash sensors.
29. Release harness clips (70) and remove harness.
Installation
1. Layout harness around engine bay, feed harness into cabin area and secure grommet.
2. Secure forward harness clips (x70) to body.
3. Connect multiplug (x2) LH and RH side repeaters.
4. Connect multiplug (x2) LH and RH pad wear indicators.
5. Connect multiplugs (X2) LH and RH wheel speed sensors.
6. Connect multiplugs (x2) LH and RH air flow meters.
7. Connect multiplugs (x2) LH and RH headlamp bulb
monitoring resistors.
8. Position earth leads (x6), install and torque tighten nuts (x6).
9. Secure harness to plates (x2) and install plates to body.
10. Connect multiplug (x1) purge valve.
11. Install washer reservoi r (see Workshop Manual
procedure 01.16.DA Reservoir and Motor Assembly -
Windshield Wash - Renew).
12. Install fuse box (see Workshop Manual procedure 18.01.KD Fuse Box - Engine Bay - Renew).
13. Connect multiplug (x1) ABS connector.
14. Connect multiplug (x1) load level sensor.
15. Disconnect multiplug (x4) forward harness to cabin harness.
16. Connect multiplug (x1) heated front screen.
17. Connect multiplug (x1) PAS sensor.
18. Connect multiplugs (x2) A/C.
19. Connect multiplug (x1) horn
20. Position earth leads (x2), install and torque tighten nuts (x2).
21. Secure forward harness multiplug (x1) to inner wing and connect multiplugs (x2).
22. Connect multiplug (x2) cooling fans.
23. Connect multiplug (x1) am bient air temperature sensor.
24. Connect multiplugs (X2) crash sensors.
25. Install cross member front latch mounting 01.14.BD Latch Assembly - Hood - Renew).
26. Install wiper motor and linkage (see Workshop Manual procedure 01.16.BA Linkage Assembly - Wiper -
Renew).
27. Install LH headlamp (see Workshop Manual procedure
17.01.AB Headlamp Assembly - LH - Renew).
28. Install RH headlamp (see Workshop Manual procedure 17.01.BB Headlamp Assembly - RH - Renew).
29. Connect vehicle battery.
Repair Operation Time (ROT)
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.

Wiring and Circuit Protection (18.01)
Electric Distribution/Electronic Control (18.00)
May 2007 Workshop Manual 18-1-27
7. Release/remove LH and RH quarter trim middle panel,
fir tree clips (x8)
8. Remove bolts (x4) and screw (x2) securing LH and RH upper quarter trim moulding to body.
9. Disconnect multiplug (x2) LH and RH speaker.
10. Remove nuts (x6) LH and RH speaker to trim moulding and remove speakers.
11. Feed seatbelt/s through trim moulding aperture and remove moulding.
12. Remove bolts (x4) seat belt bracket to body and position bracket aside.
13. Remove rear floor carpet.
14. Remove nut (x1) and bolt (x1) subwoofer to body.
15. Lift subwoofer assembly and disconnect multiplug (x1) and remove assembly
16. Remove power amplifier (see Workshop Manual procedure 15.01.AB Power Amplifier - Renew).
17. Remove tyre sealant bottle.
18. Remove mobility kit from storage rack
19. Slide fusebox rearwards and release from bracket.
20. Release terminal cover, remove nut (x1) main battery lead to fusebox.
21. Disconnect multiplugs (x2) and remove fusebox.
22. Remove nuts (x6), Star wash ers (x6), plain washers (x6)
and rubber seals (x6) rear lamp assembly.
23. Disconnect multiplug (x2) and remove LH and RH rear
lamp assembly.
24. Remove multi-media module - LH side of luggage compartment (see Workshop Manual procedure
19.07.BB Module - Multi Media - Renew).
25. Remove front floor carpet and A lower post trim panel. - check procedure on refit.
26. Remove bolts (x4) handbrake lever bracket to floor and position lever aside.
27. Remove bolts (x4) footrest bracket to body and floor.
28. Remove brake booster (see Workshop Manual procedure 06.07.AB Brake Booster - RHD - Renew). 29.Disconnect throttle pedal multiplugs (x2) (see Fig. 1).
30. Remove earth headers (x3) (see Fig. 2).
31. Disconnect Stop light switch, Clutch UP switch and
Clutch DOWN switch multip lugs Clipped to body x1)
(see Fig. 3). Fig. 1
Fig. 2
Fig. 3
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Wiring and Circuit Protection (18.01)
Electric Distribution/E lectronic Control (18.00)
18-1-30 Workshop Manual May 2007
48. Disconnect crash sensor, battery disconnect unit and
pre-tensioner multiplugs (clipped to body x2) (see Fig.
14).
49. Remove battery header (see Fig. 15).
50. Remove earth headers (x2) (see Fig. 16). 51. Release in-line fuse from body (see Fig. 17).
52. Remove clips (x8).
53. Release harness from floor (bolts x4) and pull forward
into footwell (see Fig. 18).
Fig. 14
Fig. 15
Fig. 16
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Fig. 17
Fig. 18
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Wiring and Circuit Protection (18.01)
Electric Distribution/Electronic Control (18.00)
May 2007 Workshop Manual 18-1-35
11. Connect door harness to main harness multiplug and
secure boot.
12. Connect Crash sensor an d parking brake multiplugs.
13. Connect Fuel pump module, parking aid module (x2) and pre-tensioner multiplugs (clip to body).
14. Install earth header.
15. Install clips (x13).
16. Connect petrol tank multiplug and secure to body
17. Install harness clips (x2).
18. Pull harness from passenger compartment and secure grommet.
19. Connect crash sensor, battery disconnect switch and pre-tensioner multiplugs (clip to body x2).
20. Install battery header.
21. Install earth headers (x2).
22. Secure in-line fuse to body.
23. Secure harness to floor (bolts x4).
24. Install clips (x8).
25. Feed harness into tailgate area and secure grommet (LH).
26. Connect LH tailgate harness multiplug (clip to body).
27. Install LH harness clips (x3).
28. Connect RH tailgate ha rness multiplug (clipped to
body).
29. Feed harness into tailgate area and secure grommet (RH).
30. Install RH harness clips (x4).
31. Install nuts (x7) harness to tunnel.
32. Install earth headers (x2).
33. Connect Airbag module (x2) multiplugs.
34. Install harness clips (x3).
35. Install nuts (x3) harness to tunnel.
36. Install earth headers (x2).
37. Connect Yaw sensor multiplug.
38. Install earth headers (x2).
39. Install nuts (x3) harness to front bulkhead.
40. Install harness clips (x4).
41. Connect fuel filler flap release and interior light
multiplugs.
42. Push rear light harness through body and secure grommet.
43. Install new harness clips (x7).
44. Pull harness from interior, connect Lucar connectors (x2) to AM/FM tuner and clip service loop.
45. Connect GPS (x2) and AM/FM tuner multiplugs.
46. Install bolts (x4) and earth strap for Satellite Navigation mounting plate access.
47. Connect rear bumper harness (x2) and Subframe harness multiplugs (clipped to body x1).
48. Push harness into w/arch area and secure grommet.
49. Install wires to earth headers (x3).
50. Push rear light harness through body and fit grommet. 51. Secure harness to body (x3).
52. Connect Interior light, a
ccessory sockets (x2), battery
disconnect switch, power plug (clipped to body x4).
53. Install new harness clips (x4).
54. Feed harness from cabin th rough bulkhead into under
bonnet area and secure grommet.
55. Connect multiplugs forward harness to main harness (x3) (clip to body).
56. Connect (bolted) multiplug forward harness to main harness (clip to body).
57. Install brake booster (see Workshop Manual procedure 06.07.AB Brake Booster - RHD - Renew
58. Install footrest (bolts x4).
59. Install handbrake lever (bolts x4).
60. Install front floor carpet and a post trim panel.
61. Install multimedia module (see Workshop Manual procedure 19.07.BB Module - Multi Media - Renew).
62. Position LH and RH rear lamp assemblies and connect
multiplugs (x2).
63. Install rubber seals (x3), plain washers (x3), and star washers (x3). Install and tighten nuts (x3).
64. Position fusebox, connect main battery feed, install and torque tighten nut, install terminal cover.
65. Connect multiplugs (x2) and install fusebox in mounting bracket.
66. Install mobility kit.
67. Install tyre sealant bottle.
68. Install power amplifier (see Workshop Manual procedure 15.01.AB Power Amplifier - Renew).
69. Fit rear floor carpet - check procedure
70. Connect multiplug (x1) subwoofer.
71. Install subwoofer (nut x1 and bolt x1).
72. Install seat belt bracket (bolts x4).
73. Install speaker to LH and RH trim moulding (nuts x6).
74. Connect multiplug (x2) LH and RH speaker
75. Feed seatbelt/s through quarter trim moulding.
76. Install quarter trim moulding (bolts x2 and screw x1).
77. Install RH and LH quarter trim middle panel, secure
with clips, Install and tighten screw.
78. Install RH rear wheel arch liner (see Workshop Manual procedure 01.02.JB Wheel Arch Liner - Rear - RH -
Renew).
79. Install central electronic module (see Workshop Manual procedure 18.01.LC Module - Central Electronic -
Renew).
80. Install instrument panel (see Workshop Manual procedure 01.12.AB Instrument Panel - Facia Assembly
- Remove for Access and Refit).
81. Install front header panel (see Workshop Manual procedure 01.05.BB Panel Assembly - Header - Renew).
82. Connect vehicle battery.

Aston Martin V8 Vantage2009MY OBDII Documentation 4.7L Aston Martin Confidential
Component P CodesMalfunction Strategy
Description Malfunction Criteria
(Fault) Fault condition
(Internal labels) Threshold Value
(Fault condition) Entry conditions Entry conditions values Filter Time to
log DTCClutch position sensor P173B S1/ S2 wire short
circuit to battery or open circuit Clutch position sensor -
Secondary Circuit high The asic UH05 inside the TCU
detects the fault and communicate it to the uP
Output Voltage > th_high th_high = 4,5V (Key ON) AND NOT
(cranking) AND
VSupply inside prope
r
range VSupply range = 7V-24.5V 50ms
Clutch position sensor P0805 Short circuit between
P1 and P2 or short
circuit between S1 and S2 Clutch position sensor - Primary
Secondary short circuit The clutch position signal is a fixed
value (around 2.5 V)
See annexed Chart 2 th_1= 5 km/h
th_2= 2000 bit
timeout_1=100ms timeout_2=50ms (Key ON) AND NOT
(cranking) AND
VSupply inside proper
range VSupply range = 7V-24.5V 50ms
Hydraulic
pressure sensor P0935 Hydraulic pressure
sensor short to GND or open circuit Hydraulic pressure signal circuit
high Output Voltage < th_low th_low = 0,39V (Key ON) AND NOT
(cranking) AND
VSupply inside proper VSupply range = 7V-24.5V 500ms
Hydraulic
pressure sensor P0934 Hydraulic pressure
sensor short to battery Hydraulic pressure signal circuit
low Output Voltage > th_high th_high = 4,79V (Key ON) AND NOT
(cranking) AND
VSupply inside proper VSupply range = 7V-24.5V 500ms
Hydraulic
pressure sensor P0932 Internal Sensor
Damage or open
circuit on the ground sensor wire Hydraulic pressure signal wrong
value Wrong constant pressure value
detected through a correlation
between the pressure variation and an estimation of the oil flow (Key ON) AND NOT
(cranking) AND
VSupply inside proper
range VSupply range = 7V-24.5V 500ms
Kl.30 Power Supply P1794 Open circuit or broken
fuse on TCU supply Kl.30 Power Supply open circuit Power Supply < V_th
V_th = 3V (Key ON) AND NOT
(cranking) 500ms
External sensors power supply or sensor ground P0641 Failure of the sensor
power voltage supply External sensors power supply
or sensor ground open circuit or short circuit V_Sensor_Supply inside proper
range V_Sensor_Supply range
= 4V-5V (Key ON) AND NOT
(cranking) AND
VSupply inside proper
range VSupply range = 7V-24.5V 2500ms
Engine speed from CAN U0401 Internal Problem on
Engine Control System Engine ECU: Engine speed fro
m
CAN. Signal not valid
CAN engine sp = inv_th inv_th = FFFFh NOT (Cranking) AND
(ECU ON since t_on)t_on = 200 ms 1000ms
Engine speed from CAN U1900 Internal Problem on
Engine Control System Engine ECU: Engine speed fro
m
CAN. Signal absent (wrong zero
rpm signal) (CAN engine sp = 0) AND (Engine
ON) Engine ON 1000ms
Engine speed from CAN U1920 Internal Problem on
Engine Control System Engine ECU: Engine speed fro
m
CAN. Signal wrong
(CAN engine speed different form
Clutch speed) AND (CAN engine
speed different from Driveline speed x gear ratio) Seed tollerance=
500rpm (Engine ON) AND
(clutch closed) AND (gear engaged) 1000ms
ASM OBD
228/04/2008