You will need to disconnect battery, remove horn pad, pull steering wheel with wheel puller,remove some dash plastic, and once you are that far it is a matter of removing a few torx fasteners, dropping the column, ( two bolts) and feeding the harness down. Basic tools. It may sound harder than it is; it's not that bad. Good luck.
how do you replace the headlight switch on a 1993 cutlas ceria*
It is bolted on the steering column behind the dash, along with the dimmer switch. You have to drop the column and unscrew the switch. Problem is, the plug with the wiring also has the wiring for the turn signals and dimmer switch. You may have to do some splicing unless you want to feed a harness up the column.
no
can i reset it or replace it ,where is it on the car
It does not have one (only fords products have them)
The ECM is located behind the glovebox on a 1991 Cutlass Ciera. Pull the glove box out to see it. Once located remove the mounting hardware and unplug it from the car. Replace the unit.
yes, most of the panels can be used from one to the other
Yes, you do.
where is the horn relay
The brake light switch is located on a bracket behind the brake pedal support.
where is the knock sensor located on 93 cutlass ciera
where is cam senor on a 91 cutlass ciera 3300