Celica & Supra
- Disconnect wiring connector from wiper motor. Using 12-volt battery, connect jumper wire from positive battery terminal to wiper motor terminal No. 1. See Figure. Using another jumper wire, connect wiper motor terminal No. 3 and motor body to negative battery terminal. Motor should operate.
- To check automatic PARK operation, with motor running, motor should stop by disconnecting jumper wire from terminal No. 3. Replace motor and relay as a complete assembly if operation is not as specified. See REAR WIPER MOTOR R & I under REMOVAL & INSTALLATION.