Gary,
Glad you've got brake lights! But.... since K4 is used for both the hazard and brake lights and your hazard lights worked, K4 had to be functional. My guess if that there is/was something else on the DLR module, probably an open connection that made contact due to your removal and reinstall, that was/is the culprit. It almost has to be a connection that feeds pin 86 of K4 from TS1. The overheated wires and connector on the DLR module as well as the traces from the connector to K4-86 would be the chief suspects. In any case, if it happens again, you'll know where to look.
Steve