the DQ scanner is used to import profile results + some scorecard metadata.
if you want lineage for the DQ mappings - then you should use the Informatica Platform scanner.
As mentioned by Darren, Informatica platform is correct resource to see the lineage from IDQ mappings. You will need to run below scanners to see the lineage for IDQ mappings.
1. Run resource for your SQL server to get source and target tables in EDC.
2. Run Informatica platform resource with auto connection assignment. This resource will bring mappings from application you would have deployed in DIS. Auto connection assignment will assign the connections from these IDQ mappings to scanned source and target tables.
3. Once above resources are run, you should be able to see lineage for source and target tables.
I hope above helps you.