Rear Wiper Motor

Unplug connector at wiper motor. Use an ohmmeter to check for continuity between motor case and ground. Be sure motor is in park position, then check for continuity between terminals "+1", "S" and ground. See Fig 1.

Fig 1: Rear Wiper Motor Terminal Locations for Jumper Wires and Continuity Check
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Motor side of connector shown.
With ignition on, voltage should be present at terminal "B". Connect a jumper wire from battery voltage to motor connector terminal "+1" to check motor operation.