TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical Systems39 / 203
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WASHER MOTOR INSPECTION — MK4 Supra Body Electrical Systems, page 39
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BODY ELECTRICAL SYSTEM – WIPER AND WASHER SYSTEM BE–39 2. INSPECT REAR WIPER MOTOR AND RELAY OPERATION (a) Connect the positive (+) lead from the battery to terminal 1, and the negative (–) lead to terminal 3 and the motor body, check that the motor operates. (b) Disconnect the negative (–) lead from terminal 3, check that the motor stops running at the stop position. If operation is not as specified, replace the motor and relay. Intermittent Operation Connect the positive (+) lead from the battery to terminal 1, and the negative (–) lead to terminal 2 and the motor body, check that the motor operates intermittently for 9–15 seconds. If operation is not as specified, replace the motor and relay. WASHER MOTOR INSPECTION INSPECT MOTOR OPERATION Front Washer Connect the positive (+) lead from the battery to terminal 2 and the negative (–) lead to terminal 1, check that the motor operates. NOTICE: These tests must be performed quickly (within 20 seconds) to prevent the coil from burning out. If operation is not as specified, replace the motor. Rear Washer Connect the positive (+) lead from the battery to terminal 2 and the negative (–) lead to terminal 3, check that the motor operates. NOTICE: These tests must be performed quickly (within 20 seconds) to prevent the coil from burning out. If operation is not as specified, replace the motor. ND9983 ND9904 ND9985 BE4118 BE4119