Motor Test
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.
Disconnect rear wiper motor connector. Connect a jumper between battery voltage and wiper motor Orange wire. Connect a second jumper wire between negative battery terminal and Black wiper motor ground wire. Motor should rotate at 38-46 RPM. If motor RPM is not within specification, replace motor.