i have just bought a seville sts 1990; the "service engine soon" light stays on permanently but i have no idea of what it means, i am french, bought this car from a british guy who serviced the car regularly; can it be dangerous on the long run to continue driving with this signal and what can i do to discover what goes wrong with the computer?

The computer will have some codes stored, you need to find out what these are. To do this, hold the "Off" and "Warmer" at the same time on the climate control centre for a few seconds, and then it will start displaying the codes, so be ready with a pen to write them down.

The first codes should start with "E" (basically engine/mechanical ones). Then it will show "B" codes (basically body codes, lights etc), then SIR (air bag codes).

The service engine soon lights are for "E" codes, once you have written down what they are, you can reset them and see if they come back.

If you go to this web page, it will tell you all you need to know about the codes etc:-

http://myweb.accessus.net/~090/dtcobd1.html#tro

If you have any problems, I have the GM workshop manuals, so just ask.

Good luck and enjoy your Seville
Regards
Guy

thank you very much for helping, i am a bit lost with ammthis now but will try and do what you advised me and hope to sort things out.
i will contact you again if i cannot solve the problems alone!
regards
eric

hello again guy; i did what you advised me and this is what was displayed on the computer:
E046, E047, E098, E122, B120, B121 , B122, B335, B337, B552 and ECM? which is the last code displayed.
what should i do next to clear all these codes?
thank you
eric.The computer will have some codes stored, you need to find out what these are. To do this, hold the "Off" and "Warmer" at the same time on the climate control centre for a few seconds, and then it will start displaying the codes, so be ready with a pen to write them down.

The first codes should start with "E" (basically engine/mechanical ones). Then it will show "B" codes (basically body codes, lights etc), then SIR (air bag codes).

The service engine soon lights are for "E" codes, once you have written down what they are, you can reset them and see if they come back.

If you go to this web page, it will tell you all you need to know about the codes etc:-

http://myweb.accessus.net/~090/dtcobd1.html#tro

If you have any problems, I have the GM workshop manuals, so just ask.

Good luck and enjoy your Seville
Regards
Guy

Clear The Codes And Run For Awhile And Re Test

OK thank you, i will do that tomorrow.

OK thank you, i will do that tomorrow.
hi again, i eventually cleared the codes and the light did not come back but i have another problem with "system problem -1"...what could that mean?