1997 ASTON MARTIN DB7 relay

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

NO
COLOUR
2173
B

606
NG

EI2
BK

2175
B
603
NK
PIN
1 ? 3 4 5 6
7
8 9 10 II 12

AREA 23.A3
23.86
23X6
23.A3 23.66
RQ

SEAT HEATER
sw NO COLOUt 2166 R eii ou
2176
0
2177
OR
2174
8
605
P
2176
KR
2179
K
2180
S

2182
SN

604
RW
TON
PIN 1 ? 3 4 5 6 ! a
9 10 II 12 13
14

PACK
AREA 23.84-217 23.C6
23.01 23.01
23.A3 23.86
23.01 23.01 23.01
23.01

23.86

^'^O-rt-CC:^

1 R R R
1 y¥¥y

RHRP
V J

3 t
7
II 14
NO
COLOUR
2172
B
2173
B
2174
8
2175
B

AREA 23.A4 23.AI 23.BI 23.AI

NO
2172
216'

COLOUR
B R
PIN 1
2 3 4

AREA 23.A3
23.B4-
21/

NO
COLOUR
608
WK
2182
SN
2180
S
2177
OR
2179
K
2178
KR
607
BP
2176
0
PIN 1 4 6 9 1? 13 28 37

AREA 23.B6 23.CI
23.81
23.BI
23.81 23.81
23.86
23.81

E/a
16
NO
COLOUR
603 NK
604
RW
605 PN
606 NG 607 8S 608 WK 609 OW 610
OS
611
OU
612
BK
PIN
1 2 3 4
5
6 7 8
9 10 II 1? 13
14 15 16

AREA
23.A1

23.CI
23.B1

23.AI 23.DI
23.01
23.C3-216 23.03 23.BI 23.AI

SHEET 8 AREA D2 » &•
NO 610 2169 2170
2171
COLOUR OS OW R
OW
PIN 85 86
87 87A
30

AREA 23.C6 23.C4-2I6 23.84-217
23.C4-2I6
HEATER RELAY

IS:My''2? Wiring Diagram
Model - Aston Martin DB7
Harness Title - Drivers Sill
Part No.-B3
7-84648

Revision - 0 Sheet 23 of 26 - 97 MY

NO
COLOUR
ms 8
909
NG

999
BK

2160
B
995
NK
PIN
1 ? i 4
5
7
S 9 10 tl 12

AREA
A3
86
06
A3 86
RQ

SEAT HEATER

SWITC

NO
COLOUf
2155
R
749
OU
2161
0
2162
OR
2159
B
996
P
2163
KR
2164
K
2165
S

2166
SN

362
RW

i
PAC
PIN 1 2 3 4 5 6 / e
9 10 II 12 13
14
K

AREA B4-2I5
06 01 01 A3 86 Dl 01 01
01
86
NO
2157
?l5fl
2159 2160

COLOUR
B B B B

AREA
A4 Al 81 Al

NO
COLOUR
PIN
2157
8 1
2154
R 2 J 4

AREA
A3
84-215

NO
COLOUR
998
WK
2166
SN
2165
S
2162
OR
2164
K
2163
KR
997
BP
2161
0
PIN 1 4 B 9 1? 13 ?8 37

AREA
86 CI 81 81 81 81 86 ei
c/a
24 48

NO
COLOUf
995 NK
362
RW
996 PN
909 NG 997 8S 998 WK 904 OW 750 OS 749
OU
999 8K

PIN
1 2 3 4
5
6 7
8 9 10 II 12 13
14 15 16

AREA
Al
CI Bl
Al Dl 01
C3-2I4
03 81 Al
SHEET 12 AREA D6

NO
COLOUR
750
OS
2156
OW
2157
R

2158
OW
PIN 85 RR
87 87A
30

AREA
C6
C4-2I4 84-215
C4-2I4

HEATER RELAY
'"^P Wiring Diagram
Model - Aston Martin DB7
Harness Title - Passengers Sill
Part No. - B37-84649
Revision - 0 Sheet 24 of 26 - 97 MY

y/--^^^^3^
'—-p "^ Body and Trim
Roof Description
Volante Roof
Description
The system comprises an electrically driven hydraulic pump and two hydraulic rams for raising and lowering the

roof.
The pump is powered via two heavy duty changeover relays. Two further pairs of changeover relays power
the rear quarter windows (one pair for each window). The roof hydraulic pump is protected by a 30A fuse, the
windows by circuit breakers.
An electronic control module (ECM) is actuated by the roof switch on the centre console. The ECM controls the
operation of
both
the roof
and
rear quarter window circuits
so
that they can only be operated in
a
pre-programmed

manned.
When in operation, the ECM provides signals to the roof and to the rear quarter windows.
When the roof
switch
is moved into the open (Roof Down) position, the roof
and
rear windows move together until
approximately four seconds has elapsed. At this time, the ECM will remove power from the rear window circuits,
leaving the roof motor running. The roof motor will stop after 12 seconds (i.e. a further 8 seconds after the rear
window motors stop).
The signals will be removed from the rear window relay after 4 seconds and from the roof relay after 12 seconds
if the roof switch is held in either position for longer than 12 seconds.
In order to comply with legislation, the following features are built into the system:
If the roof switch is operated in either direction and then released before that operation is complete, the roof and
rear quarter windows will stop immediately. If, whilst the system is in operation, the ignition switch
is
turned to the
off position, the system will immediately stop.
If the roof switch is pressed again after pausing during a roof movement, the timing sequence will be as follows:

1.
If the previous direction is selected, the timing recommences from where it left off and will continue to
completion. If the ignition has been turned off, the timing will start from the beginning of its cycle.

2.
If theoppositedirection
is
selected,
the timing sequence will commence
from the beginning
of the newly selected
direction and continue to completion.
Roof and Rear Quarter Light Control
The following diagrams show the component location and the electrical control for the roof and rear quarter light
systems.
May 1996 7-7

Body and Trim >/—^
^^^^5^
' ^ ^
Roof Components I -^' ^—^ -^-^
Roof Component Location
Roof Switch
Hydraulic Pump
ECM
Roof Up Relay
Roof Down Relay
LH Q Light Up Relay
LH Q Light Down Relay
RH Q Light Up Relay
RH Q Light Down Relay
Fuse and Circuit Breakers
Hydraulic Rams
Heated Rear Window Overide Switch
Figure 7. Roof
System
Component Location
7-8 May 1996

5^^
Body and Trim
Roof Control System
Roof Control System
LH Roof
Ram
n
Roof Down Roof Down
n
RH Roof
Ram
Roof
Motor
Roof Up
Fluid
Reservoir I
Roof Up
Roof Up
Relay
LH Window
Up Relay
LH Window
Motor LH Window
Down Relay
Roof Down Switch
-o o-
Roof Down
Relay
RH Window
Up Relay
Right
Quarter
Light
RH Window
Down Relay
RH Window
Motor
Gearbox Switch
o~o
o o-Handbrake Switch (Man)
Park + Handbrake (Auto)
Figure 2. Roof System - Control Schematic Diagram
May 1996 7-9

^7
Air Conditioning
Contents
Repair Procedures
8.1.01.1 Compressor Removal/Renewal 8-51
8.1.02.1 Field Coil Renewal 8-52
8.1.03.1 Renew Gasket Kit 8-52
8.1.04.1 Valve Plate Renewal 8-53
8.1.05.1 Expansion Valve Renewal 8-54
8.1.06.1 Hose-Compressor to Evaporator Renewal 8-55
8.2.01.1 Air Conditioning Unit Renewal 8-55
8.2.02.1 Evaporator Unit Renewal 8-56
8.2.03.1 Upper Servo Feedback Potentiometer Renewal 8-57
8.2.04.1 Lower Servo Feedback Potentiometer Renew 8-57
8.2.05.1 Upper Flap Motor Assembly Renew 8-58
8.2.06.1 Lower Flap Motor Assembly Renew 8-58
8.2.07.1 Ambient Temperature Sensor Renew 8-59
8.2.08.1 Blower Motor Driver Side Renewal 8-59
8.2.09.1 Blower Motor Passenger Side Renewal 8-59
8.2.10.1 Blower Assembly Driver/Passenger Side Overhaul 8-60
8.2.11.1 Blower Motor High Speed Relay Renewal 8-61
8.2.12.1 Water Temperature Switch Renewal 8-62
8.2.13.1 Heater Matrix Renewal 8-62
8.2.14.1 Electronic Control Module Renew 8-63
8.3.01.1 Vacuum System Solenoid Renewal 8-63
May 1996 8-3

^7
Air Conditioning
Temperature Distribution System
Temperature Distribution System
The heating and ventilation unit case consists of three sections:
• the front, which contains the air conditioning system evaporator
• the rear section, which consists of two parts and contains the heater matrix and rotary flaps
• the lower outlets which direct air to footwell and rear passenger compartment and are removable.
Temperature variation within the car
is
achieved by all incoming air passing through the evaporator and then being
directed through or around the heater matrix by rotary flaps:
• Full heating (Fig.1)
• Defrost (Fig. 2)
• Full cooling (Fig. 3)
Blend (Fig. 4)
Figure 1.
Figure
2.

Figure
3.
Figure
4.
The rotary flaps are opened or closed by servo motors, as directed by the control system, and flap position
information is relayed to the ECM by feedback potentiometers.
(Solid arrow = Hot, Line arrow = Cold)
May 1996 8-9