1993 CADILLAC ELDORADO suspension

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For the 1948 model, Cadillac
introduced the legendary
tail fin
which set the trend in automotive
styling for nearly two decades. This
was followed
by the 1949 model with
the two door hardtop Coupe DeVille
and the modern overhead valve,
high compression
V8 engine.
-
Engineering innovations, con-
veniences and styling dominated the
'50s and '60s. Cruise control, auto-
matic climate control,
tilt and
telescoping steering wheels, twilight
sentinel and four door hard tops all
debuted in these years. In
1957 the
Eldorado Brougham featured ad-
vances such as air suspension, mem-
ory seat, automatic electric
door
locks, transistor radio, a brushed stainless steel roof
and low profile
tires.
introduced in
1953, was redesigned for 1967 as the
first front wheel drive personal lux- ury car. The
472 cu. in. V8 engine
used
in all Cadillacs in 1968 and
1969 was enlarged to 500 cu. in. for
all 1970 Eldorados.
An Air Cushion Restraint Sys-
tem (airbag) was available for
1974,
1975 and 1976 Cadillacs.
Analog Electronic Fuel Injec-
tion was available, on
1975 Cadillacs
and was standard on the new inter-
national size 1976 Seville. In 1978,
the Trip Computer option incor-
porated an on-board microprocessor.

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A 1993 Cadillac AllantC in stock
technical configuration, was selected
as the pace car for the
76th Indianap-
olis
500. The demanding pace car
performance and handling require-
ments were met because
of such
advanced systems as the
32 valve,
dual overhead camshaft, Northstar
4.6 liter V8 engine, 4t80 E electroni-
cally controlled automatic transaxle,
road sensing suspension, speed sen-
sitive steering, antilock brakes and
traction control.
This
rich tradition continues
into the
'90s as Cadillac became the
first automobile manufacturer to be
awarded the prestigious Malcolm
Baldrige National Quality Award.
The
1992 Seville STS is the first
car ever to
win all three major auto-
motive awards: Car of the Year,
Motor Trend; Ten Best List, Car
&a
Driver; Car of the Year, Automobile
Magazine.
For more than nine decades
Cadillac has been a leader
in quality
and technical innovation. Now more
than ever, substance takes shape
. . . Cadillac Style j

Downloaded from www.Manualslib.com manuals search engine SERVICE A/C SYSTEM A/C COMPRESSdR OFF
This message appears when the electronic sensors that control the A/C
and heating system are no longer working.
You mav notice a drop in
heating and A/C efficiency when this message appkars. Have your
Climate Control system serviced
if this message appears.
STARTING DISABLED DUE TO THEFT SYSTEM REMOVE
IGNITION
KEY
This message will appear when the Personalized Automotive Security
System (PASS Key
I1 rM ) senses that an improper ignition key is being
used to try to start the vehicle. Check the ignition key
for damage. If it is
damaged, it may need to be replaced. If you see no damage, clean the
pellet contacts
with a soft cloth or napkin. Remove the ignition key and
wait for the Driver Information Center to display “WAIT
3 MINUTES”.
The Instrument Panel Cluster
will then run a timer and change the
messages to “WAIT 2 MINUTES”, “WAIT 1 MINUTE”, and then
“START CAR”. When the “START CAR” message
is displayed, try again
to start the engine.
SERVICE NOW - REFER TO OWNERS MANUAL
This message appears if you have a problem with the Electronic Control
Module (ECM).
To correct this problem have your vehicle serviced at
your Cadillac dealership.
SERVICE RIDE CONTROL
This message is displayed to indicate that the Suspension System is not
operating properly. To correct this problem have
your vehicle serviced at
your Cadillac dealership at your earliest convenience.
STOP ENGINE ENGINE OVERHEATING
This message will appear when your engine has overheated. Stop and
turn your engine
off immediately to avoid severe engine damage. See
“Engine Overheating” in the Index.
SERVICE VEHICLE SOON
This message will appear if there is a problem with your Emission
Control System.
If the “SERVICE ENGINE SOON” light on the
instrument panel and this message appear and then turns off, it
is an
indication that
a temporary problem has cleared itself. Have your vehicle
checked
at your earliest convenience.
137

Downloaded from www.Manualslib.com manuals search engine TURN SIGNAL ON
This message is a reminder, after driving about a mile that you have your
turn
signal on.
TRUNK OPEN
This message indicates that your trunk is opcn when the Ignition is ON.
VERY LOW REFRIGERANT
This message means that the Air Conditioning system detects a
refrigerant level that is low enough to cause damage to the A/C
compressor.
To avoid damage, the A/C compressor automatically turns
off and the Electronic Climate Control will automatically switch from
“AUTO” to “ECON” and remain there. Have your
A/C system serviced if
this message appears.
Speed Sensitive Steering (SSS)
This system varies the amount of steering effort proportionate to your
vehicle speed. Steering is easier at
a lower speed for increased
maneuverability and parking ease.
As your vehicle speed increases, the
steering effort
is also increased proportionately. At highway speeds the
amount
of steering effort is greatly increased to provide a manual like
steering feel for maximum control
an enhanced vehicle stability.
Road Sensing Suspension (Northstar Only)
The Road Sensing Suspension automatically controls the ride of your
vehicle.
The system controls damping forces in the shock absorbers and
struts in response to various road and driving conditions. The system is
capable
of making these changes within milli-seconds.
The
Road Sensing Suspension controller is a computer used to control
and monitor the system. The computer receives inputs from vertical
acceleration sensors, wheel
to body position sensors, vehicle speed
sensor, lift and dive signals, and determines optimum strut valving or
(suspension stiffness) for your current operating conditions.
The
computer also receives feedback from the various components to
determine proper system operation. If the computer receives an incorrect
feedback from the system, an error code will be
set in memory and a
“SERVICE RIDE CONTROC’ message will display on the Driver
139

Downloaded from www.Manualslib.com manuals search engine The system probably will say to change the oil between 3000 miles (5000
km) and 7500 miles (12500
km), but it may even say to change it before
3000 under
very severe conditions. It all depends on your driving
patterns. If it’s been 7500 miles
(12500 km) it will say to change oil.
There are two things the system doesn’t do:
It can’t sense heavy dust in the places whcre you drive. If you drive in
a dusty area, you should change your oil every 3000 miles (5000 krn)
or
3 months (whichever comes first), unless thc display says to change
it even sooner than that.
0 It doesn’t check how much oil you have, so you’ll still have to check
Also, for the system
to work right, it is important that you use SG oil, as
discussed earlier.
for that.
To see
how, see Index under “Engine Oil.”
When You’ve Changed the Oil
When new oil is put in, you‘ll need to reset your system. To do it, display
the
“OIL LIFE INDEX” by pressing the “Information” button. Then
press and hold the “STORE/RECALL? buttons
until the display shows
6‘ 100. 77
Speed Sensitive Suspension
The Speed Sensitive Suspension automatically controls the firmness of
your Cadillads ride. An actuator in each of the four struts will change
ride firmness depending
on vehicle speed and other driving conditions.
As
the vehicle speed increases, the firmness of the suspension changes to
one or three damping modes “Comfort”, for speeds !ess than 40 mph,
“Normal” for speeds between
40 and 60 rnph, and “Firm” for speeds
greater than 60 mph.
The system also stiffens damping during hard
acceleration, braking and cornering ,for increased control,
A computer is used to control and monitor the system. The computer
receives speed, acceleration and determines optimum mode strut valving
(or suspension stiffness) for your current operating conditions. The
computer also receives feedback from the struts to determine proper
system operation.
If the computer receives an incorrect feedback from
the system, an error code will
be set in memory and a message
“SERVICE RIDE CONTROL? will be displayed until the problem is
141

Downloaded from www.Manualslib.com manuals search engine 1nrVc-I
SENSE
I I
BIII mc 1 m DRL
SUSPENSION RTD (BAT)
L HDLP LO
R HDLP LO L HDLP HI R HDLP HI
-1
COOL FAN TRANS/ECS
FUSE CENTER IDENTIFICATION I
ENGINE COMPARTMENT FUSE BLOCK
COIL 20A - 4.9L DISTRIBUTOR - 4.6L IGNITION CONTROL MODULE SIR 20A - DIAGNOSTIC ENERGY RESERVE MODULE
- ARMING SENSOR
- POWERTRAIN CONTROL MODULE (PCM) (DERM) SIR (AIR BAG)
PCM (IGN) 10A - PASSKeyB DECODER MODULE
INJ 10A
INJ 10A
IGN 10A
- FUEL INJECTORS 1,4,6,7
- FUEL INJECTORS 2,3,5,8
- A/C COMPRESSOR - ELECTROCHROMIC MIRROR - INSTRUMENT PANEL CLUSTER - DIAGNOSTIC ENERGY RESERVE MODULE
- KEYLESS ENTRY MODULE - CORNERING LIGHTS - CHIME MODULE - TWILIGHT SENTINEVDRL MODULE - BACKUP LIGHTS - BRAKE TRANSMISSION SHIFT INTERLOCK (DERM)
SIR (AIR BAG)
FUEL 20A
- FUELPUMP - POWERTRAIN CONTROL MODULE
PCM (BAT) 10A
A/C 1OA
HTD
W/S 10A
STOP LP 20A
TURN/HAZ 20A
- POWERTRAIN CONTROL MODULE (PCM)
- A/C COMPRESSOR
- HEATED WINDSHIELD
- STOP LIGHTS
- HAZARD LIGHTS - TURN SIGNAL LIGHTS DRL
1OA (CANADA)
DRL 1OA (CANADA)
SUSPENSION 10A
- DAYTIME RUNNING LIGHTS
- DAYTIME RUNNING LIGHTS
- ROAD SENSING SUSPENSION
- SPEED SENSITIVE SUSPENSION (4.9L)
- ROAD SENSING SUSPENSION (NORTHSTAR)
RTD (BAT) 20A
L HDLP LO 1 OA (EXPORT)
R HDLP LO 1OA (EXPORT)
L HDLP HI 10A (EXPORT)
R HDLP HI (EXPORT)
IGN
3 10A
- LEFT HEADLAMP LOW BEAM
- RT HEADLAMP LOW BEAM
- LEFT HEADLAMP HIGH BEAM
- RIGHT HEADLAMP HIGH BEAM
- HEATED WINDSHIELD - HEATER AND A/C PROGRAMMER - ELECT. LEVEL CONTROL (ELC) - DEFOGGER RELAY “D”
- CRUISE CONTROL - POWERTRAIN CONTROL MODULE
- COOLING FANS - POWERTRAIN CONTROL MODULE (4.6L) - FRONT AND REAR HEATED OXYGEN
COOLING
FAN 10A
SENSOR (4.6L)
TRANS/ECS
1 OA
SOLENOID - EXHAUST GAS RECIRCULATION (EGR)
- POWERTRAIN CONTROL MODULE (PCM) - AUTOMATIC TRANSAXLE - EVAPORATIVE EMISSION CONTROL
SOLENOID
- OVERSPEED ALERT MODULE (EXPORT) - POWER STEERING PRESSURE SWITCH
329

Downloaded from www.Manualslib.com manuals search engine 5
LH MAXI8 FUSE BLOCK
FUSE 1 (50 AMP)
- RETAINED ACCESSORY POWER
(RADIO/WIPERS)
- STARTER
- TRUNK COMR FUSE Ai 1
- ENGINE COMF! FUSES Ai, A3, A5, A7, A9,
All,A13
FUSE 2 (60 AMP)
U.S.A./CANADA Z49/SAUDI
- TRUNK COMP FUSES C1, C3, C5, C7, C9, Cil
- ROAD SENSING SUSPENSION
FUSE 2 EXPORT EXCEPT SAUDI (60 AMP)
- ROAD SENSING SUSPENSION
- REAR FOG LIGHT (EXPORT)
- TRUNK COMP FUSES C1, C3, C5, C7, C9,
C11, C13
CIRCUIT BREAKER 3 (30 AMP)
- FUEL DOOR RELEASE
- TRUNK RELEASE
- LEFT AND RIGHT POWER SEAT
- LEFT AND RIGHT LUMBAR CONTROL
- KEYLESS ENTRY MODULE
- POWER DOOR LOCKS
- HORNS
FUSE 4 (30 AMP)
- POWERTRAIN CONTROL MODULE (PCM)
- ELECTRONIC CLIMATE CONTROL - RAP/ILLUMINATED ENTRY MODULE
- INSTRUMENT PANEL CLUSTER
- PASSKeyB DECODER MODULE
- THEFT DETERRENT
I 50A I m 5
FUSE 5 (60 AMP)
- LEFT AND RIGHT HEATED SEATS
- ELECTRONIC LEVEL CONTROL (ELC)
- TRUNK LID PULL DOWN
- POWER ANTENNA
- REAR DEFOGGER
- LEFT AND RIGHT MIRROR DEFOGGERS
FUSE 6 (60 AMP)
- RETAINED ACCESSORY POWER
(SUNROOF/POWER WINDOWS)
- ENGINE COMF! FUSES C7, Dl, D3, D5
- TRUNK COMF! FUSES Al, A3, A5, A7
RH MAXIB FUSE BLOCK
FUSE 1 (40 AMP)
- TURN/HAZ STOP LP - PARK LIGHTS
FUSE 2 (30 AMP)
- DELCO-BOSEG SPEAKERS
- RADIO CONTROL HEAD
- REMOTE RADIO RECEIVER
CIRCUIT BREAKER 3 (30 AMP)
- FLASH TO PASS FEATURE
- DAYTIME RUNNING LIGHT (DRL)
- HEADLIGHTS
FUSE 4 (40 AMP) HAVAC BLOWER
- HVAC POWER MODULE
- AJC COMPRESSOR
FUSE 5 (50 AMP) ABS
FUSE
6 (50 AMP) COOLING FANS
- ANTILOCK BRAKE PRESSURE VALVE
- COOLING FANS
330

Downloaded from www.Manualslib.com manuals search engine Front Suspension
Your fully independent front suspension is a combination strut and spring
design.
The frame is isolated from the body with six rubber mounts.
Rubber bushings are used at
the lower control arm pivots. Thc upper end
of the strut is isolated by a rubber mount which contains a bearing to
allow
for wheel turning. The Road Sensing Suspension on the 4.6 Liter
(Northstar) and the Speed Sensing Suspension on
4.9 Liter will
automatically controls the damping rate of the struts.
The lower end of the steering knuckle pivots on a ball joint riveted to the
control arm. The ball joint is connected to the steering knuckle
with a
castellated
nut and cotter pin.
342