This morning I had the service engine light come on - when I got home I hooked up my OBD 2 meter to the port and no codes showed. So I think I set one in the DTC computer. I have never had to access those codes. My Cadillac I hit a combination of on/off and scroll button up and the computer codes are seen on the speedometer display. I am certain with the 2000 Buick Lesabre something like that is possible. I could not find anything in the searchs - can someone please help?
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