Hi, new to the forum here. My son just purchased a 2005 Grand Prix base. He went without me and ended up buying a very rough car. Already had to replace front struts, all brakes etc. This is his second car as a 16yr old and trying to save hime some money now. So the brake lights and turn signals are not working. They do show on the cluster, tick fast etc. The third brake light works. But left right brake lights do not work, front nor back turn signals work. Checked all fuses and they are all good. I do not know how to test the BCM to see if that is the issue. Any help would be greatly appreciated.
Thank you!!
