1. Open the fuse panel cover under the steering wheel column (pry down with your fingers). 2. Locate electronic control unit (ECU) fuse using fuse diagram on panel cover.
3. Pull fuse for ECU using fuse pullers that is mounted in fuse panel.
4.Turn ignition to "II" position. Wait 5 minutes for "Service Engine Soon" light to go out on dash before reinserting ECU fuse.
The service engine soon light on an Oldsmobile Cutlass Supreme notifies the driver that it is time to change the oil. It is trigger around the 3,000 mile mark at regular intervals.
It means that you need to get the cars computer scanned to find out what the problem is.
It will, if it causes the fuel mixture to be out of range.
Probably because you need to check the engine.
The check engine light on a 94 Buick Olds Cutlass is read using an OBDII code reader. It is connected to the port under the dash which interfaced directly with the reader.
The computer stores the codes until it is reset manually. The check engine light does not have to be on to check the codes.
I've had problems with the Intake Manafold and also with the spark plug towers burning out setting off the check engine light. I know there are more but this is just my personal experience with my 1999 cutlass.
Either the chip in your key is worn or the contacts in the key cylinder are bad.
It could be the brake fluid reservoir is low and is telling you that the brakes need attention.
It's on top of the brake pedal under the dash.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
if you are refering to the head lights you need to change the head light bulb otherwise where is the light you are talking about