A faulty fan would cause high pressures on both sides if it's without airflow long enough. The Traverse cycles the fan on and of at idle and light loads. It's always good to know but I don't think the fan is the issue. In the picture low side was at 100 and high side was at 140 so not quite equal. To me it seems like your compressor went bad. Weird to go bad the way it did but, anything can happen. A faulty compressor is the only piece that will cause that symptom. Any other faulty components would still give you a variance in pressure one way or the other.