If you're analytics tool in DTM is set to managed by Adobe then it must be set to version 1.6 or higher to get clickmap code.
If you're set to custom code managed by DTM then there should be a line in the code that says: AppMeasurement for JavaScript version: 1.x. If it's this one then the easiest way is to go in to code manager in analytics and download the latest AppMeasurement and paste it over the current version.