Power Window Motor: Testing and Inspection

INSPECT POWER WINDOW ECU (MOTOR) CIRCUIT
Disconnect the connector from the ECU and inspect the connector on the wire harness side.

HINT: The power window ECU does not operate even if battery voltage is applied to the connector of the driver's door power window ECU directly.

Do not apply the battery voltage directly because this will cause the controller broken.
Each regulator does not have stop function. Operate manually and never operate to the highest position.
If the circuit is as specified, replace the ECU.
If the circuit is not as specified, inspect the circuits connected to other parts.




Rear left side door:
INSPECT POWER WINDOW MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the motor turns counterclockwise.
b. Reverse the polarity, check that the motor turns clockwise.
If operation is not as specified, replace the motor.




Rear right side door:
INSPECT POWER WINDOW MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the motor turns counterclockwise.
b. Reverse the polarity, check that the motor turns clockwise.
If operation is not as specified, replace the motor.