on my ST 1050 I guess the rear indicators were switched with newer led ones, resulting in a fast hypnotic techno beat blinking I ordered one one these electronic CF13 JL02 relay put it in place and .. nothing. Examining the old and new relay, I noticed that positive and negative poles where reversed. Some connectors and wire later, it works fine.
In between I found that the correct relay with correct poles alignments is the CF13 GL02 ! instead of the CF13 JL02. Waiting for the correct relay I made this: