Nope, started with Byrne. Per Perez, the Truth was in the lasso and Diana was just a normal amazon (except for the ability to fly... a weird little quirk in the relaunch that has caused no end of small but real subsequent confusion); in WML's run, when Artemis took over the job, the lasso was given to her, because it was Wonder Woman's tool, not Diana's, and Artemis was able to use it freely (though unlike even Perez' Diana, she never did anything more with it than force people to tell the truth, and was demonstrated several times to lack the control over it that Diana had). Then Byrne did the whole Goddess of Truth thing and it was just an unbreakable rope out of her hands from there on out.