ECU ASTON MARTIN DB AR1 Q 2003 Owners Guide

E - Security Systems
1-E-8
PATs Status
The PATs system state is shown by the red status
LED in the centre console.
The status LED will illuminate for three seconds
when the ignition is turned on and will extinguish
when a valid code is received from the ignition
key.
When the ignition is turned off, the status LED
will flash. This is the normal state when the
vehicle is parked with the ignition off and the
key removed.
If the status LED remains on when the ignition is switched on, the system is
in fail-safe mode. This means that the car will start, but PATs has a fault.
After one minute, the status lamp will flash a fault code. Your Aston Martin
Dealer can use this code to aid diagnosis of the PATs problem.
If the status LED continues flashing when the ignition is turned on, the
vehicle remains immobilised due to a fault in the system or an invalid key
code. Should this situation arise, try the spare key. If successful, source a
replacement for the faulty key. If problems persist with both keys, consult
your Aston Martin dealer.
During normal operation, the only indication that PATs is present is the PATS
status LED. The system is designed to be completely transparent to the
vehicle user.

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1-E-9
Alarm On
System Armed
Normal state - parked and locked
Alarm Off
System Disarmed
Normal state when driving
Press Left Button Once
Indicators flash
three times
(where permitted and
programmed).
Doors Unlock
Panic Alarm
Siren On for 30 secs
Indicators Flash
5 minutes
Panic Alarm
Siren On for 30 secs
Indicators Flash
5 minutes
Resets after
5 minutesPress Left Button
for 3 seconds
Press Right Button
1indicator flash
1 siren chirp
(where permitted
and programmed).
Boot unlocks
Press Right Button
1 indicator flash
1 siren chirp
(where permitted
and programmed).
Boot unlocks
Boot Open
Press Left Button Once
Indicators flash
once
(where permitted and
programmed).
Doors Lock
Resets after
5 minutes
Press Left Button
for 3 seconds
Alarm System - Operating Summary
Note: Siren and indicator lamp flashes are prohibited in some markets.

E - Security Systems
1-E-10
Alarm Key Fob - Range and Battery Replacement
The normal range of the alarm key fob is approximately 10 metres (30 feet).
If you need to come closer to the car before the key fob signal is effective,
the key fob battery probably needs replacing.
To replace the key fob battery, open the battery compartment using a small
flat bladed tool and remove the cover.
Lift out the two batteries noting the correct orientation (positive terminals
uppermost). Take care not to damage the upper electrical contact in the
battery compartment.
Fit replacement batteries (Two x Varta CR2016 3 volt batteries or similar),
observing the correct polarity. Refit the battery compartment cover and
press the outer end to engage the cover lock tab.
Test that the alarm system will arm/disarm when actuated using the key fob
from a range of approximately 10 metres (30 feet).

F - Owner Maintenance
1-F-3
Parts and Lubricants
When undertaking a warranty servicing task, only parts, materials,
lubricants etc. that are specifically recommended by Aston Martin
Lagonda Limited should be used. Failure to do so can result in
damage to the vehicle and invalidate the New Car Warranty or
other warranties. Recommended lubricants, capacities, etc. may be
found in the Specifications section of this Owner's Guide, and are
recommended for use at all routine services whether or not under
warranty.
Emissions Warranty
The emission control systems fitted to cars for certain markets are
covered by a separate emissions warranty. A statement of the provisions
is given in the Warranty section of this Owner's Guide. You are
advised to familiarise yourself with all warranty conditions prior to
taking delivery of your car.
Engine Compartment Covers
The primary fluid level checks and reservoirs within the engine
compartment are all immediately accessible. The less frequently
maintained items are located under the engine compartment side
covers. To remove the covers, use a coin or the tool kit screwdriver
to turn the cover fasteners a quarter turn anti-clockwise. The fasteners
will pop-up and the covers can then be lifted off, along with a
rubber protection strip.
When replacing the covers, fit them into place and secure by pushing
down on each fastener and turn it a quarter turn clockwise until it
locks, then insert the rubber protection strip.

F - Owner Maintenance
1-F-7
Engine Oil Level Check
When checking engine oil level, the car should be on level ground. If the
engine has been running immediately prior to the check, wait several
minutes after stopping the engine for the oil to drain back into the sump. The
dipstick (1) (which should be wiped clean before checking the oil level) is
located on the left-hand side of the engine. The oil level should be
maintained at the 'Max' dipstick mark.
Approximately one litre is required to bring the level from Min to Max. The
recommended engine oil should be added through the oil filler (3). Do not
overfill. Replace the filler cap securely.
WARNING: Running the engine with insufficient oil can cause serious damage.
To avoid personal injury and before working in or near the engine compartment,
switch off the engine and let it cool. Engine components are hot and may cause
severe burns. See also the warnings given in SERVICING PRECAUTIONS.

F - Owner Maintenance
1-F-11
Brake Fluid Reservoir
The brake fluid reservoir (5) is fitted to the driver's side of the engine
compartment on top of the brake master cylinder assembly.
Before removing the cap, clean the cap and the surrounding area thoroughly
to prevent ingress of dirt and foreign matter. Top up to the indicated level
on the reservoir with the recommended brake fluid (see 'Specifications') and
refit the cap securely.
Brake fluid will absorb water vapour and must be replaced every two years
in order to maintain the efficiency of the hydraulic system.
WARNINGS: Do not drive the vehicle if the brake fluid level is low. Use only new
DOT4 brake fluid from air tight containers.
Avoid touching the sides of the engine when working in the engine compartment.
The exhaust system will be hot if the engine has recently been run.
Caution: Take care that hydraulic fluid does not contact the paint work during the
topping up operation. Serious paint work damage can result. If a spillage does occur,
immediately flush the hydraulic fluid from the paint work with clean, fresh water and
then wipe with a clean damp cloth.

F - Owner Maintenance
1-F-14
Tyre Pressures
In the interest of safety and tyre life it is important that correct tyre pressures
are carefully maintained (See 'Specifications').
Road holding, steering and braking are especially vulnerable to incorrect
tyre pressures.
Pressures increase slightly when tyres are hot and, for an accurate reading,
pressures should be checked when the tyres are cold.
After checking the pressures ensure that the valve caps are securely replaced
to provide an additional air seal and to prevent the ingress of dirt.
Running-In New Tyres
When new tyres have been fitted, speed should be limited, particularly
during the first 80 km (50 miles) or so of driving. Fast cornering, hard braking,
and harsh acceleration should also be avoided during this period.
Tyre Service
Tyres should be examined at regular intervals for wear and damage. Stones
or other objects which have become lodged in the tyre treads should be
carefully removed.
When new tyres are required, it is advisable to consult an Aston Martin
dealer who will be able to supply tyres to the correct specification.

F - Owner Maintenance
1-F-22
Jacking and Wheel Changing
WARNINGS:
The front road wheels must be in the straight ahead position before removal. The
front tyre will catch on the wheel arch during removal if not in the "straight
ahead" position.
Check that the temporarily repaired tyre is inflated to the specified pressure.
Never exceed 50 km/h (30 mph) when a temporarily repaired wheel is fitted.
Ensure that no persons are in the vehicle before jacking commences.
Ensure that the handbrake (parking brake) is set and that the car is in 'Park' (Auto)
or 1st Gear (Manual).
Ensure that the vehicle is parked on firm and level ground to ensure a secure base
for the jack.
Do not run the engine while the car is on the jack and never let anyone work
under the car whilst it is on the jack.
Spare Wheel Access (where fitted)
On vehicles with the space saver spare
wheel, the spare wheel is stored in a
well in the boot floor.
Lift out the boot floor and toolkit.
Remove the spare wheel retaining screw
and lift out the spare wheel.

F - Owner Maintenance
1-F-23
Jacking and Wheel Changing
1. Place the vehicle on firm and level ground and secure the handbrake.
Place the chock from the toolkit under the wheel diagonally opposite to
the one to be removed. If parked on an incline, chock the 'downhill' side
of the wheel.
2. Remove the locking wheel nut
cap from the special nut using the
extractor tube from the toolkit.
Assemble the wheel nut wrench.
3. Using the wheel nut wrench from the tool kit, slightly loosen the four
normal wheel nuts in turn so that the nuts may be removed easily when
the wheel is raised from the ground.
4. Using the special socket from the toolkit, slightly loosen the fifth special
wheelnut.

F - Owner Maintenance
1-F-24
5. Using the handwheel (A) on the jack screwshaft, raise the jack until the
jack top plate (B) fits to the jacking point stud under the sill at the affected
wheel. Ensure that the jack baseplate is squarely seated on solid ground.
Note: In the following step, the jack handle extension (D) must be used to prevent
damage to the vehicle paintwork as the jack handle (C) is rotated.
6. Ensure the safety of any persons in the vicinity and the security of the
wheel chock. Raise the vehicle as necessary using the jack ratchet handle
(C) and extension (D) to lift the deflated wheel clear of the ground.
Remove the wheel nuts and remove the deflated wheel.
7. Mount the spare wheel on the hub. Reverse the jack ratchet handle on
the extension and partially tighten the wheel nuts.
8. Lower the vehicle to the ground. Tighten the wheel nuts alternately.
Remove the wheel chock.
9. Repack the tools into their location in the boot. Place the defective wheel
into the bag provided and place on the rear seats.
10. When the spare wheel is correctly fitted and secured, drive conservatively
(80 km/h (50 mph) maximum) and have the wheel nuts torque tightened
to 88-102 Nm (65-75 lbs/ft) at the earliest opportunity.
WARNINGS:
Follow the wheel label warnings. Failure to comply can be dangerous. Drive
cautiously and refit a serviceable standard wheel and tyre as soon as possible.
Never fit more than one temporary spare wheel at a time.
Check that the temporary spare tyre is inflated to the specified pressure.
Never exceed 80 km/h (50 mph) when the spare wheel is fitted.