Rear Wiper Motor (If Equipped)
WARNING: This page is about a different car, the 1996 Suzuki X-90. However, it is still accessible from the selected car via links, so may be relevant.
Check continuity between Orange wire and Black ground lead. If no continuity exists, check brush-to-commutator contact surface. If surface is fouled, wipe clean with solvent. If surface is coarse or burnt, dress with 600 grit emery cloth or turn lightly on a lathe.