1997 ASTON MARTIN DB7 diagnostic menu

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The Aston Martin Lagonda Diagnostic System
Contents
Installation Instructions
Introduaion 9-2
The Aston Martin Diagnostic System 9-2
Diagnostic System Cables 9-5
Base Station Installation 9-8
Problem Solving 9-16
Service Centres 9-21
Service and Maintenance 9-22
Technical Specifications 9-24
Operating Instructions
The Aston Martin Lagonda Diagnostic System 9-27
Software 9-29
Cable Setup 9-31
Diagnostic Sockets - 97 MY 9-31
Establishing Communications 9-32
System Menu Selections 9-32
PDU Use 9-32
Engine Diagnostics - 97 MY 9-33
Transmission Diagnostics 9-40
Climate Control Diagnostics 9-43
Anti-Lock Brakes Diagnostics 9-43
Passive Anti-Theft (PATS) Diagnostics 9-44
Airbag System Diagnostics 9-45
Seat Belt Pretensioner Diagnostics 9-47
Print Facility 9-49
Digital Multimeter 9-50
Diagnostic Trouble Codes 9-53
Datalogger 9-55
Datalogger Example 9-63
Training 9-66
OBD II Scan Tool 9-66
System Self Test 9-69
The Asterisk (*) Menu 9-69
System Setup 9-70
May 1996 9-1

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The Aston Martin Lagonda Diagnostic System
Installation Instructions
Powering-Up the PDU

1.
Install the CD-ROM.

2.
Press the PDU power on switch (Fig 1-2). An
audible tone will be hears and the green PDU
power on indicator (Fig 1-6) will illuminate. The
touch sensitive screen will also be activated. If this
does not happen, see the problem solving section.
3. Adjust the contrast control (Fig
1
-4).

4.
When the PDU is switched on, it will perform an
automaticself-checktotesttheinternal components.
On successful completion of the self-check, a PDU
symbol will appear with a 'tick' next to it (Fig 10).
The PDU will then display the language selection
screen (Fig 11).
5. Select the required language and confirm the
selection (Fig 11).
Hole: PDU text is available in
English,
French,
Italian,
German and Japanese.
6. The PDU will then load its software from the CD-
ROM and display the 'main menu' (Fig 12).
7. New users may select 'Training' and press the 'tick'
icon to enter the on-screen PDU training
programme.
iGenRad V 1.0 (£) 1992
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Figure 10. Self-check completed screen
Figure 17. Language selection screen
Main Menu
• Run diagnostic
• Digital multimeter
Training
• PDU System self test
Figure 12. The main menu
May 1996 9-13

The Aston Martin Lagonda Diagnostic System
Installation Instructions 5^27
Battery Charging
The PDU is fitted with internal NICAD batteries
which allow the PDU to be transported whilst
retaining programs. The batteries are not designed
to be used as a general power source. A special
circuit monitorstheamountofcharge in the batteries
so that they cannot be overcharged.
From the time when first operating the system or a
PDU fitted with substitute batteries, it will take up
to 36 hours to achieve full charge. In the meantime,
the PDU can be used whilst connected to the base
station or to the vehicle battery. Keep transit times
to and from the vehicle as short as reasonably
possible to preserve battery charge.
Subsequent battery charges
shou Id
take six to seven
hours from fully discharged. The PDU must always
be left connected to the base station when not in
use in order to keep the batteries fully charged.
CAUTION: The rechargeable NICAD batteries
fitted to the PDU are of a special type and must
only be replaced with GenRad approved parts. Do
not substitute the batteries with any other type.
Always
dispose
of old batteries in compliance with
local recycling regulations. The procedure for
changing the battery pack
is
described later in this
installation guide.
Operating Procedures
Refer to the Aston Martin Diagnostic System Users
Guide for detail on each of the PDU software
options
Selecting Diagnostics

1.
Switch on the PDU, the main menu will be

displayed.

2.
Select 'Run Diagnostic' from the main menu and
confirm the selection by pressing the 'tick'
icon.
A
sequence of menus will be displayed requesting
identification of the vehicle under test.
3. The system will load the appropriate software.

4.
On completion of software loading, disconnect the
PDU from the base station and transfer it in its
carrying case to the vehicle. The additional pockets
in the carrying case may be used for carrying any
interface cables required.
5. If the VIA is required, also transfer it in its carrying
case to the vehicle together with any vehicle
interface cable required.
Using the PDU on the Vehicle
At the vehicle, the PDU may be removed from its
carrying case if required. The PDU should always
be connected to the vehicle using the Vehicle
Battery Adaptor (VBA) (0024). The PDU will
continue to charge from the vehicle battery.
Vehicle Battery Adaptor
This unit transforms battery voltage to the correct
level for the PDU. The VBA (Fig 13) also contains
electrical filters to protect the PDU from any voltage
spikes or other interference from the vehicle which
could affect PDU operation.
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Figure 13. The vehicle battery adaptor
Vehicle Interface Adaptor
When the software requires the Vehicle Interface
Adaptor to be used, it is powered from the vehicle
battery (Fig 14). The Vehicle Battery Adaptor
incorporates a socket into which the VIA to VBA
cable (0028) is inserted. The opposite end of this
cable is inserted into the connector on the VIA

panel.

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Figure 14. The vehicle interface adaptor
9-14 May 1996

The Aston Martin Lagonda Diagnostic System
Installation Instructions ^7
Problem Solving
CAUTION: If any part of the
system
is damaged, do not use it. Call your local GenRad Service Centre immediately for
a substitute
part.
Refer to 'Parts Ordering'.
CAUTION: With the exception of
those
parts referred to in the Servicing and Maintenance section, there are no user
serviceable parts. All servicing must be carried out by GenRad Service Centres.
PDU Self-Test
The system self test routine should be run periodically even if there are no apparent problems with the system.
Running the system self-test will identify any problems before they impact on productivity.
If it is suspected that the system is operating incorrectly, run the PDU system self test option on the main menu).
If the system self test will not run, or the PDU will not switch on, the instructions in this section must be followed
carefully.
If one of the fol lowing test steps advises you to order or fit a new part, make a note of the test step, part number and
description. Then follow the parts ordering procedure later in this section.
Stepi
Connect the mains power to the base station. Is the green base station indicator illuminated?
YES - Go to step 4
NO - Go to step 2
Step 2
Check the mains supply, then check the mains
lead.
Is
the mains lead faulty?
YES - Renew the mains
lead.

NO - Go to step 3
Step 3
Remove the electronic module from the base station.
Using a small screwdriver, open the fuse drawer below the power socket on the rear of the module (Fig 16). Remove
the fuse and fit the spare fuse. The fuse must be lEC 127 approved ceramic type 250V 2A (T). Re-install the module
into the base station, power up the system. Is the base station green indicator illuminated?
YES - The fuse was faulty
NO - Renew the electronic module (0019)
Figure 16. Electronic Module Fuse Replacement
9-16 May 1996

The Aston Martin Lagonda Diagnostic System
Installation Instructions -=2?
Step 11
Adjust the contrast control. Is the PDU touch screen illuminated?
YES - Co to step 12
NO - Renew the PDU (0017)
Step 12
Observe the display screen. Is the screen displaying a PDU hard error symbol similar to that shown in Fig 17
YES - Note the number and refer to 'Parts Ordering'.
NO - Co to step 13
Figure 17. PDU hard error code
Step 13
Observe the screen display. Is the screen displaying the main menu (Fig 9)?
YES-Co to step 14
NO - Go to step 15
Step 14
Select the PDU system self test option and press the 'tick'
icon.
Does the screen respond?
YES - Co to step 15
NO - Renew the PDU (001 7)
Step 15
Observe the display screen. Is the screen displaying the symbol shown in Fig 18?
YES - Connection problem, go to step 17
NO - Co to step 16
Figure 18. Communications blocked
9-18 May 1996

The Aston Martin Lagonda Diagnostic System
Installation Instructions =27
step 21
Observe the screen display. Is the system loading from the CD-ROM?
YES - Go to step 13.
NO - Renew the PDU (001 7).
Parts Ordering
Before calling GenRad, it is essential that the system self test is run from the main menu. If the system self test will
not run or the PDU does not switch on, follow the Problem Solving procedures.
The system self test option will identify any fau It and display a fault code on the PDU screen. This fault code number
must be recorded. When in contact with your local GenRad Service Centre, they will require this number in order
to send the correct substitute parts.
Before calling the GenRad Service Centre, please have the following information available.
Dealer Name and Address
Name of the contact at that address
PDU Serial Number (base station LHS - Fig 22)
Fault Code, Component Name and Serial Number as given on the PDU screen during self test.
Ifthe system self test will not run, GenRad will require the name and part number ofthe component identified during
he Problem Solving Procedures.
Figure 22. Diagnostic System Serial Number
9-20 May 1996

The Aston Martin Lagonda Diagnostic System
Users Guide o: "3^^?
PDU Functions
The PDU main menu provides access into the following functions:
Diagnostics
Training
Digital Multimeter
User Self Test
Diagnostics
On selecting'Diagnostics'from the main
menu,
the user will be prompted to enter the features and market specification
of the vehicle to be tested. Use of the diagnostics in each of the above areas is described later in this guide.
Diagnostics Menu - 95 Model Year
Engine
Anti-Lock Braking System
Vlenu - 97 Model Year
Engine Diagnostics
OBD II Scan Tool
Airbag
Seat Belt Pretensioner
•
•
•
•
Transmission
Engine Datalogger
Climate Control
PATS System
Climate Control
Transmission
Anti-Lock Braking System
Security
Digital Multimeter
The Digital Multimeter function provides the capabilityto measure voltage, current, resistance, frequency, pulse width,
pulse period, and duty cycle. These measurements are usually made using the PDU measurement probes. Measurements
may also be made using the module pin selection function on the Teves Mk
II
braking system and on the Air Conditioning

system.

Training
An on-screen programme is provided to train new users in the use of screen icons and in the use of the digital multi­
meter and datalogger functions.
User Self Test
In order to prove that the equpment is functioning correctly, a complete user self test is incorporated. The user is directed
to test the PDU and then to progressively connect each part of the PDU system which will be tested by the software.
Any fault identified during the test is notified to the user. If no faults are identified, the user is advised on the correct
functioning of the system.
PDU Power
Power for the PDU is supplied via an internal rechargeable battery pack which can keep the PDU operational for
approximately one hour when disconnected from the base station and the vehicle. In order to preserve PDU battery
charge, power to the screen backlight is automatically cut after five minutes of inactivity. The power ON indicator
remains lit, indicating that the PDU is in 'stand-by' mode. One touch of the screen will restore backlight power.
When connected to the base station, power is supplied to the PDU from the Electronic Module to recharge the PDU
battery pack as necessary.
On 95 MY vehicles, the Vehicle Battery Adaptor (VBA) is used to maintain PDU power.
On 97 MY vehicles, when connected via the MPA to either diagnostic socket on the vehicle, power is supplied via pin
4 (chassis ground) and pin 16 (battery power) to maintain PDU power at all times even when the vehicle ignition is
switched off.
On all model years, when connected to the air conditioning system using the VIA, the vehicle battery adaptor (VBA)
must also be used to maintain PDU power.
9-28 September 1996

^=2?
The Aston Martin Lagonda Diagnostic System
Users Guide
Software
Software for the PDU system is supplied on CD ROM
discs and supports diagnosis on the following control

units:

Zytek Engine Management System (95 MY)
EEC-V Engine Management System (97 MY)
CM 4L80-E Transmission Controller
PATS - Passive Anti Theft System
Teves Mk II ABS System (95 MY)
Teves Mk IV ABS System (97 MY)
Valeo Air Conditioning System
PMC Airbag System
Megamoss Security System
Autoliv Drivers Seat Belt Pretensioner
(where fitted)
All of these systems are supported in English, French,

Italian,
German and Japanese.
In addition to the specific system software listed above,
thePDU isalsoequipped with general purpose software
to provides multimeter, printing and PDU training
options.
Software for 95 and 97 Model Year Vehicles
Software for both the 95 and 97 model year vehicles is

provided.

The PDU system requires a Vehicle Interface Adaptor
(VIA) to communicate with the control units of 95
model year vehicles.
Communication with 97 model year control units is
principally via an Aston Martin multi-protocol adaptor
to 2 inbuilt diagnostic sockets in the vehicle. Only the
air conditioning unit requires the VIA on 97 model year
vehicles.
If the multimeter function is used, the Vehicle Battery
Adaptor (VBA) will be required to provide the basic
supply and ground levels for the multimeter.
Software Loading and Selection
Ensure that the system is powered up and that the PDU is
correctly connected to the base station. Check and if
necessary load the DB7 software CD Revision 002. (see
the installation guide)
Switch 'on' the PDU which will run through two front
screens and then load the following initial PDU software.
Operating System
Main Menu
Selector
Digital Multimeter
Interactive Training
September 1996 9-29