Kabbalah never developed its own independent zodiac. The Sefer Yetzirah takes the twelve-sign, seven-planet system already established by Hellenistic and Babylonian astrology and assigns each sign and planet a Hebrew letter β the 12 "simple" letters to the zodiac, the 7 "double" letters to the classical planets. This produces a genuine, textually grounded correspondence system: Aries to the letter Heh, Taurus to Vav, and so on through the full twelve, alongside the twelve months of the Hebrew calendar and twelve functions of the body sharing the same letters.
What this correspondence does not do is provide personality descriptions, compatibility readings, or predictive techniques in anything like the form modern astrology uses. The Sefer Yetzirah is a cosmological and linguistic text, not a horoscope manual β its zodiac correspondences serve the larger argument that the Hebrew alphabet structures the entirety of creation, of which the zodiac is one instance among several parallel twelve-fold and seven-fold systems.