Yes, the rear turn signal, running lights, and brake light wiring were inside the harness for the ABS system. When I removed the ABS system I wanted to keep the connector that attaches to the brain, with the brain. The wiring for that connector and also the rear modulator wiring, were all sistered together in one harness with the rear lighting wires in there as well. I cut the rear harness near where it comes out from under the tank where it was tied to the frame there. Doing this cuts all the wires going to the rear lights so I had to splice those back together.
Are you into a removal job? This took me quite some time, about 3 weeks working an hour or so at a time, to unwind all the wiring bits.
Jim