Front Wiper Motor Test: Previa

Using 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 3. See Fig 2. Connect another jumper wire between negative battery terminal and wiper motor terminal No. 1. Motor should operate at low speed.
Remove jumper wire from terminal No. 3. Reconnect positive battery terminal jumper wire to wiper motor terminal No. 2. Motor should operate at high speed.
Remove jumper wire from terminal No. 2 and reconnect jumper wire to wiper motor terminal No. 3. With motor running at low speed, stop motor at any position except PARK position by disconnecting jumper wire from terminal No. 3. Install another jumper wire between wiper motor terminals No. 3 and 4.
Ensure motor terminal No. 1 (ground terminal) is still connected to battery negative terminal. Connect positive battery terminal jumper wire to wiper motor terminal No. 5. Motor should start running and then stop at the PARK position. Replace motor if operation is not as described.

Fig 1: Front Wiper Motor Terminal ID (Supra)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Front Wiper Motor Terminal ID (Previa)

Fig 3: Front Wiper Motor Terminal ID (Except Supra & Previa)