Wiring Diagrams & Resources

Free factory OEM wiring diagrams for Toyota and Lexus platforms — MK4 Supra JZA80, MK3 Supra MA70, SC300/SC400, GS300/GS400, IS300, LS400/LS430, and MR2 SW20. All files are downloadable PDFs.

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MK4 Supra (JZA80) MK3 Supra (MA70) SC300 / SC400 GS300 / GS400 IS300 LS400 / LS430 MR2 (All Generations)

MK4 Supra (JZA80) Wiring Diagrams — 1995, 1997–1998 Toyota Supra EWD, JZA80 J-Spec, Model Differences Chart

MK3 Supra (MA70/JZA70) Wiring Diagrams — 1987, 1990 Toyota Supra EWD

Lexus SC300/SC400 Wiring Diagrams — 1992, 1993, 1994, 1995, 1996, 1997, 1998 EWDs

Lexus GS300/GS400 Wiring Diagrams — 1995 GS300 EWD (JZS147), 1999 GS300/GS400 EWD (JZS161/UZS161)

Lexus IS300 Wiring Diagrams — 2001 IS300 EWD, 2004 IS300 EWD

Lexus LS400/LS430 Wiring Diagrams — 1998 LS400 EWD, 2005 LS430 EWD

Toyota MR2 Wiring Diagrams (All Generations) — 1991 SW20 MR2 EWD (3S-GTE / 5S-FE)

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