1993 Oldsmobile Cutlass Supreme wiring

Your Driving and the Road
Driving with a Trailer (CONT.)
Making Turns
When you’re turning with a trailer,
make wider turns than normal.
Do this
so your trailer won’t strike soft
shoulders, curbs, road signs, trees, or
other objects. Avoid jerky or sudden
maneuvers. Signal well in advance.
Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle has
to have
a different turn signal flasher
and extra wiring. The green arrows
on
your instrument panel will flash
whenever you signal a turn or lane
change. Properly hooked up, the trailer
lights will also flash, telling other
drivers you’re about to turn, change
lanes or stop. When towing a
trailer, the green arrows
on your instrument panel will flash for
turns even if the bulbs on the trailer are
burned out. Thus, you may think
drivers behind you are seeing your
signal when they are not. It’s important
to check occasionally to be sure the
trailer bulbs are still working.
Driving On Grades
Reduce speed and shift to a lower gear
before you start down a long or steep
downgrade.
If you don’t shift down, you
might have to use your brakes
so much
that they would get hot and
no longer
work well.
On a long uphill grade, shift down and
reduce your speed to around
45 mph
(70 lm/h) to reduce the possibility of
engine and transaxle overheating.
If you are towing a trailer and you have
an automatic transaxle with Overdrive,
you may want to drive in
D instead of
(or, as you need to, a lower gear).

4. Now adjust the vertical aim. Check
the vertical aim for each headlight
and adjust it as necessary.
5. Turn the vertical aiming screw until
the bubble
in the level is centered at
0 (zero).
To Replace a Headlight
(2-DOOR MODELS)
Before replacing a headlight that does
not light, check to make sure that the
wiring connector is securely fastened to
it.
See the
Index under Replacement
Bulbs to check the size and type of
headlight
you need to use before you
begin
to replace the headlight. You
must replace a headlight with one that
is exactly the same.
1. Pry up the plastic pins and remove
the headlight cover.
243

244
To Replace a Headlight (CONT.)
2. Remove the Torx@ head screws at the
end of the aiming ring. The aiming
ring will swing open like
a gate.
3. Remove the aiming ring from the
assembly.
4. Remove the wiring connector from
the headlight socket by lifting the
plastic locking tabs on the connector
and pulling it from the socket. 5. Check the new headlight again. The
number on the top of the light
(A)
must match the number on the
headlight being replaced. The letter,
“U” or “L,” must also match.

6. Plug the wiring connector into the
headlight socket. Snap the locking
tabs onto the socket.
headlight assembly. The socket must
be pointing in the same direction the
socket on the burned-out bulb was.
7. Place the new headlight in the
8. Insert the tabs on the aiming ring
into the slots in the headlight
assemblv.
9. Holding the aiming ring closed, insert
the screws at the end
of the ring.
Tighten the screws until the aiming
ring touches the plastic nuts
on both
the top and bottom.
Do not
overtighten.
Do not damage the
vertical aiming bubble.
245

Service & Appearance Care
270
Fuses & Circuit Breakers
The wiring circuits in your vehicle are
protected from short circuits by
a
combination of fuses, circuit breakers,
and fusible thermal links in the wiring
itself. This greatly reduces the chance of
fires caused by electrical problems.
Some fuses are located in a fuse block
in the glove box as shown above.
To
locate the fuse block, lift out the storage
bin inside the glove box. See the
diagram later in this section.
Another set of fuses is located in the
component center, under the
instrument panel.
Additional fuses are located in the
underhood electrical centers on the
right and left sides of the engine
compartment. Spare fuses
and a fuse puller are located
in the glove box lid. To remove the
cover, press in on both ends
of the
cover and pull it
off.
Place the wide end of the fuse puller
over the plastic end of the fuse. Squeeze
the ends over the fuse and pull it out.
To identify and check fuses, refer to the
charts on the following pages. Look
at the silver-colored band inside
the fuse. If the band is broken or
melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the
identical size and rating.

Headlight Wiring
The headlight wiring is protected by a
circuit breaker in the component center.
An electrical overload will cause the
lights to go on and
off, or in some cases
to remain
off. If this happens, have your
headlight system checked right away.
Windshield Wipers
The windshield wiper motor is protected
by a circuit breaker and a fuse.
If the
motor overheats due to heavy snow,
etc., the wiper will stop until the motor
cools. If the overload
is caused by some
electrical problem, have it fixed.
Power Windows and Other Power
Options
Circuit breakers in the fuse-panel
protect the power windows and other
power accessories. When the current
load
is too heavy, the circuit breaker
opens and closes, protecting the circuit
until the problem is fixed.
275

High-Low Beam .............................. 78
Replacement
................................... 243
Wiring
............................................. 275
Head-Up Display (HUD)
................ 101
Heater ....................................... 111, 113
Heater, Engine Block ................. 57, 229
High Beams
............................... 78, 160
Highway Hypnosis
.......................... 169
Hill and Mountain Roads
................ 170
Hills. Parking on
.............................. 171
Hood Release
.................................... 222
Safety Warning
.............................. 223
Warning, Overheated Engine
....... 197
Horn
................................................... 67
Hot Engine, Safety Warnings
.......... 197
How the Anti-Lock Brake
System Works
............................... 150
HUD (Head-Up Display) ................ 10 1
(6 On” Reminder ................................ 77
Replacement Bulbs
........................ 280
Head Restraint
.................................... 15
Hydroplaning ................................... 163
Identification Englne
............................................. 269
Label. Service Parts
....................... 269
Number. Vehicle (VIN Code)
....... 268
Idling Your Engine
....................... 65. 67
If You’re Stuck: In
Ignition Sand.
Mud. Ice or Snow
............... 212
Key
................................................... 46
Positions
........................................... 54
Indicator Lights (see
Warning Lights)
Infant Restraint (see Child Restraints)
Inflation. Tires ................................. 253
Inside Rearview Mirror
..................... 80
Instrument Panel ............................... 89
Instrument Panel Clusters
................. 90
Instrument Panel Intensity Control
... 79
Instrument Panel Warning Lights
..... 91
Jump Starting
................................... 189
Jack.
Tire
........................................ 205 Keyless
Entry System
....................... 49
Keys
..................................................... 46
Lane Change Indicator
..................... 69
Lap-Shoulder Safety Belt
................... 22
Front, Automatic
...................... 22, 26
Rear
................................................. 27
Use by Children
................................ 39
Latches, Seatback
............................... 16
Lighter
................................................. 84
Lights
Fog Lights
......................................... 79
Headlights
........................................ 76
Operation
of ..................................... 77
Reading ............................................. 79
Removing
& Replacing
Bulbs
........................................... 240
Replacement Bulbs
....................... 280
Retractable Underhood
................. 226
Taillights
........................................ 247
Turn Signal
....................................... 70
Underhood, Retractable
................. 226
Warning Lights
................................ 91
329