2003 buick century computer issues?

fixed all problems and used OBD2 scanner say no codes stored yet warning lights are on changed oil fixed broken wire on traction controll filled break fluid new air cleaner and tighten gas cap HELP
2003 buick century computer issues?
The change oil soon can be turned out by simply turning on the ignition and flooring the gas pedal three times. ABS and trac is probably due to faulty speed sensor and will show a code but it will be in the body module that does not show on engine diagnostic scanner.
2003 buick century computer issues?
not all lights are controlled by the computer. what light is on exactly?
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