1997 ASTON MARTIN DB7 ad blue

NO COLOUR 1175 UO 1177 SW 1176 UN 1146 B 1179 UB
PIN 8S
an
S7 S7A 30
AREA I9.B1 I8.B3-Ie6 18.85-190 I8.BI I9.C6
NO COLOUR 1180 UG 1181 SR 1182 UN 1145 B liej UP
PIN 85
ec
8^ S7A 30
AREA I9.B2 18.82-185 18.85-190 I8.BI I9.C6
NO COLOUR 1185 LGC 1186 SW 1187 GN IMS B 1054 GW
PIN B5 88 87 87A 30
AREA 19.03-192 18.63-186 I9.C5-I94 I8.A2 18.81
NO COLOUR 1188 LGW 1189 SR 1190 GN 1149 B 1053 GR
PIN 85 86 87 87A 30
AREA I9.C4-I93 18.82-185 I9.C5-I94 I8.A2 I8.BI

HOOD DOWN RELAY HOOD
UP
RELAY
1^1
[BLUE
BASE

;
87A

LOW

I 87
11
GREEN BASE
NO COLOUR PIN 1175 UO U 1176 U W
AREA I9.A2 I8.B4-I89
i^a.
SHEET 18 AREA 86

•^
^
87A
NO COLOUR PIN AREA 1180 UG U I9.A3 1184 U W 16.84-189
i^a.

RH
OTR UP
RELAY
^J^[1REDBASE

87A
_.J^L.-

D#0I

RH OTR DOWN RELAY
I
67
11 BLACK
BASE
87A
NO COLOUR AREA 1163 N I8.A4 1191 N 19.04-195 TERYl UR |~ BATTER SPUR
HOOD MOTOR NATURAL
NO COLOUR PIN AREA 1183 UP I I9.A3 1179 UB 2 I9.A2

°2?
Wiring Diagram

Model
- Aston Martin DB7 Volante

Harness
Title - Hood - 2

Part
No. -
B3
7-84644

Revision
- 0
Sheet
19 of 26-97 MY

^^7

Electrics

wiring Diagram Sheet
21 -
Splice List
- 97 MY
o

Sheet
21

Splice
No

Wire
No
SPL 205
383
1238
1252
1243
SPL 206
381
1251
1244
SPL 207
382
1245
1254
SPL 208
1231
1239
1250

Splices
Wire Colour
Destination
Yellow

21
21
21
21
-B6
-A3
-C5
-A5

Yellow/Creen

21
21
21
-B6
-C5
-A5

Yellow/Blue

21
21
21
-B6
-A5
-C5

Yellow/Red

21
21
21
-C6
-A3
-C5

SPL
209
389
1237
1235
1248

SPL210

1232
1255
1240
SPL 211
388
1242
1237
SPL 212
1241
1246
1236
1234
1230
SPL 213
387
1249
1233

Black

21
21
21
21
-C6
-B5
-A2
-D3

Yellow/Black

21
21
21
-C6
-D5
-A3

Red/Brown

21
21
21
-C6
-A5
-A3

Black

21
21
21
21
21
-A5
-B5
-A3
-A1
-D5

Black/Purple

21
21
21
-C6
-D3
-A1

September
1996

"3^7?

Electrics

Wiring Diagram Sheet 22 - Splice List - 97 MY

Sheet
22

Splice
No

Wire
No

SPL
196

1209
1227
1216
383
SPL
197

1210
1215
381
SPL
198

1211
1218
382
SPL
199

1204
1214
1228

Splices
Wire Colour
Destination
Yellow

22-

22

22-

22
-A5
-A3
-C5
-C6

Yellow/Green

22-

22
•

22-

-A5
•C5
•B6

Yellow/Blue

22-
22-
22-

•A5
•C5
B6

Yellow/Red

22-
22-
22-

•C6
-C5
-A3
SPL
200

1224
1220
1213
SPL
201

1205
1219
1229
SPL
202

1208
1226
993
SPL
203

1207
1212
1206
1225
1223
SPL
204

1222
1221
992

Black

22
22
22
-A2
-D3
-B5

Yellow/Black

22
22
22
-C6
-D5
-A3

Red/Brown

22-
22-

22
-A5
-A3
•C6

Black

22-
22-
22-
22-
22-

-A5
-B5
•C5
•A3
•A1

Black/Purple

22-

22
22
•A1
-D3
-C6

September 1996

Electrics
Airbag System =7?
Spillage and Leakage
If material is spilled or released, contact Aston
Martin Technical Support for advice on clean-up
procedures. All personnel must be kept away from
the contaminated area.
Do not dispose of contaminated propellant or
water into storm or sanitary sewers, ground water
or
soil.

Spills may be reportable to state and/or federal
authorities.
Materials must be disposed of by incineration or
chemical oxidation under carefully controlled
conditions by specially trained individuals and in
accordancewith local stateandfederal regulations.
Scrapping Vehicles with Live Airbags
when scrapping a vehicle with live airbags, first
deploy the airbags in accordance with the following
procedure. This procedure assumes that the airbag
wiring is undamaged
See Handling/Safety Information.
If the airbags are to be removed, see the airbag
module assembly/removal/servicing instructions.
Equipment required:
Four insulation displacement connectors
(scotch locks).
Charged 'slave' battery.
Two 10 metre lengths of
1
mm^ wire fitted with
crocodile clips on one end.
Procedure
WARNING: The deployment procedure must be
carried out outdoors away from other personnel.

1.
Remove any loose debris from around the airbag
modules and ensure that no flammable liquids are
present.

2.
Disconnect the vehicle battery.
WARNING: Always connect to the airbag
first,
as

the bag will deploy immediately on connection to
the battery.
3. Remove the passenger side airbag deployment
door and underscuttle panel.

4.
Remove the drivers side underscuttle panel.
5. Disconnect the airbag connector for the spiral
cassette under the fascia and at the wire (drivers

side).

6. Locate the harness connectors and cut the wires
leading from the airbag just above the mating plug
(passengers side).
Note: The harness connected between the driver's

airbag
and the connector
has
one red
feed
wire and
one

grey/orange return
wire.
The
harness
connected between
the
passenger's
airbag and the connector
has
one blue/

orange
feed wire and one
pinl return wire.
6-72 September1996

Electrics
Airbag System E:m3^2?
Disposal of Live Airbags
Modu
les
removed/renewed by Aston Martin dealers
are to be deployed using the following procedure.
WARNING: Never use a customer's vehicle to
deploy airbags.
Equipment Required:
Link harness

'Slave'
battery
Safety goggles to BS 2092 grade 2 or equivalent
Rubber gloves to PrEN 374 class 2 or equivalent
Ear protectors
Particulate respirator to EN 149 grade FFP 25
Deployment cage
Note: If you do not
have access
to a deployment
cage,

please
contact Aston Martin
Lagonda
Limited
Technical

Support Department for advice.
Procedure
This procedure must be performed outdoors, away
from other personnel.
Remove any loose debris from around the airbag
and ensure that no flammable liquids are present.
Assemble the disposal cabinet and fit the airbag as
shown in figure 1 in line with the following
procedures:
a) Remove the mesh guard from the rig frame.
b) Attach the guard to the frame by bolting the
hinges to the frame.
c) Ensure the relevant plate is fitted and rotate into

position.

d) Fit and secure the airbag module onto the plate.
e) Clamp the plate down using the two toggle
clamps.
f) Close the mesh guard.
Note: The harness connected between the driver's
airbag and
the
connector
has
one red
feed
wire and one
grey/orange return wire. The harness connected between
the
passenger's
airbag and the connector
has
one blue/
orange feed wire and one pink/black return wire.
Connect the 10 metre {33ft) link harness to the

airbag.

Ensure that no personnel are in the vicinity of the
cabinet.
5. Move 10 metres (33ft) and connect the link harness
crocodile clips to the 'slave' battery; the airbag will
deploy immediately.
6. Allow the unit to cool for at least 20 minutes.
7. Open the mesh guard and remove the deployed
airbag module.
Note: Should the
design
of your deployment
cage
differ
from that described above, please contact the cage
manufacturer for advice on mounting the airbag.
8. Seal the deployed module into a plastic bag ready
for disposal.
9. In the event of any problems or queries, contact
Aston Martin Lagonda Limited -Technical Services
Department.
Disposal of Deployed Airbags
Deployed airbags are to be disposed of as special
waste and disposal must comply with local
environmental requirements. If
in
any doubt, contact
the local authority for disposal instructions.
Note; The storage, transportation, disposal and/or
recycling of airbag module components must be
performed in accordance with all applicable federal,

state
and local regulations including, but not limited to,

those
governing building and fire
codes,
environmental
protection, occupational health and safety and
transportation.
Modules removed and deployed by Aston Martin
Dealers are to be returned to Aston Martin Lagonda
Limited for disposal following prior consultation.
6-74 September 1996

Air Conditioning
Vacuum System •^^
Vacuum System The flaps in the cabin air distribution vents and the
water valve in the pipeline from the engine coolant
system to the heater matrix are all operated by
vacuum actuators. The vacuum forthese
is
supplied
by four solenoids mounted in pairs behind the front
footwell outlets. Each solenoid and its associated
pipe work is identified by a colour:
Defrost
Auto Re-circulation
Water valve
Centre vent
Green
Blue
Red
Black.
The vacuum supply pipes to the re-circulation and
centre vent actuators are fitted with restrictors in
order to slow down the operation of the flaps and
avoid hunting. The re-circulation flaps can take up
to 30 seconds to move to a new position.
Vacuum is piped to the solenoids from the engine
manifold through a reservoir. The solenoids are
energised by signals from the ECM in response to
demand ,sensing and feedback signals.
-T^^^T 2
3
figure 7.
Key

1.

2.

3.

4.

5.
6.
7.
8.
9.

10.

11.

12.

13.

14.

to Fig. 1
Vacuum reservoir
Defrost solenoid
Defrost-demist actuator
Restrictors
Centre vent solenoid
Centre vent actuator
Defrost vacuum pipe
Centre vent vacuum pipe
Recirc. solenoid
Recirc actuator
Recirc. vacuum pipe
Water valve solenoid
Water valve actuator
Water valve vacuum pipe
Figure 2.
5
7
10
Key to Fig. 2

1.
Defrost (Green) solenoid

2.
+12V Defrost Input from ECM pin 12
3. Defrost output to ECM Pin 11

4.
Recirc (Blue) solenoid
5. +12V Recirc. input from ECM Pin 3
6. Water valve (Red) solenoid
7. +12V Water valve input from ECM Pin
1
7
8. Centre vent (Black) solenoid.
9. +12V Centre vent input from ECM Pin 18

10.
ECM earth-ground
8-28 May 1996

Air Conditioning
Manifold Gauge Set 5=2?
Manifold Gauge Set
The manifold gauge set is a most important tool for
fault diagnosis and system efficiency assessment.
The relationship to each other of HIGH and LOW
pressures and their correlation to AMBIENT and
EVAPORATOR temperatures must be compared to
determine system status. Because oi the heavy
reliance upon this piece of equipment for service
diagnosis, ensure that the gauges are calibrated
regularly and the equipment is treated with care.
BLUE LOW SIDE RED HIGH SIDE
LOW

m
m

Manifold.

The manifold is designed to control refrigerant
flow. When connected into the system, pressure is
registered on both gauges at all times. During
system tests both the high and low side hand valves
should be closed (rotate clockwise to seat the
valves). The hand valves isolate the low and the
high sides from the centre (service) hose.
Low Side Pressure Gauge.
This compound gauge
is
designed to register positive
and negative pressure and may be calibrated as
follows:
• Full Scale Deflection - 0 to 24 bar pressure
in a clockwise direction
• Otol bar FSD negative pressure in a counter
clockwise direction.
High Side Pressure Gauge.
This pressure gauge may be calibrated from 0 to 34
bar FSD inaclockwisedirection. Depending on the
manufacturer, this gauge may also be of the
compound type.
Figure 1
The gauge set (Fig. 1) consists of a manifold fitted
with:

1 Low side service hose - BLUE.
2 Low Side hand valve - BLUE.
3 Low pressure compound gauge - BLUE.
4 High pressure gauge- RED.
5 High Side hand valve - RED.
6 High side service hose - RED.
7 System service hose - NEUTRAL COLOUR
(commonly yellow).
8-38 May 1996

=2?
Air Conditioning
System Checking with the Manifold Gauge Set
Pressure Temperature Relationship.
Note:
Pressures
shown are under exact conditions
(see
test
conditions) and
are
not
necessary
true for every
car

checked.
Ambient Temperature is given as the air
surrounding the
condenser
and
is
taken 5 cm in front of
the
condenser.

Test Conditions.
Use a large fan to substitute for normal ram air through the
condenser. Engine adjusted to fast idle speed.
All conditions equivalent to 30 m.p.h. or 48 km/h.
Ambient
Evaporator
Temp °C
16
18
21
24
27
29
32
35
38
41
43
46
49
High
Pressure
Gauge
Reading
Ibf/in2
95-115
105-125
115-125
130-150

1
50-170
165-185
175-195
185-205
210-230
230-250
250-270
265-285
280-310
Low
Pressure
Gauge
Reading
Ibf/in2
10
12
4
16
18
20
22
24
26
28
30
35
40
45
50
55
60
65
70
Ten
-16
-14
-12
-10
-8
-6
-5
-4
-3
-1
0
2
5
9
11
14
17
19
21
Normal operating ambient temperature range is:
-24 to 43°C.
Normal operating evaporator temperature range
is:-12toO°C.
Under normal running conditions system pressure
should be, as follows:
Lowside:1.05to2.10kgf/cm21.034to2.06bar15
to 30 ibf/in2
High side: 13.00 to 14.40 kgf/cm2 12.75 to 14.34
bar185to205lbf/in2
Manifold Gauge Set Check Procedures
Refrigerant Slightly Low.
Complaint.
Little or no cooling.

1.

2.

3.

4.

1.

2.

3.

4.

5.
6.
7.
BLUE LOW SIDE
KED
HIGH SIDE
Condition.
The low side gauge reading is too low.
The high side gauge reading is too low.
A stream of bubbles evident in the sight glass.
The discharge air from the evaporator only
slightly
cool.

Diagnosis.
The system low on refrigerant due to slight leak.
Correction.
Test the system for leaks.
Depressurise the system.
Repair the leaks, and if necessary renew hoses or

units.

Check the compressor oil level. The system may
have lost oil due to leakage.
Evacuate the system using a vacuum pump.
Recharge the system with new refrigerant.
Operate the system and check the performance.
May 1996 8-41