Sienna LE V6-3.0L (1MZ-FE) (1998)
Air Door Actuator / Motor: Testing and Inspection
1. INSPECT SERVOMOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and negative (-) lead to terminal 1, then check that the arm turns to "COOL" side
smoothly.
If operation is not as specified, replace the servomotor.
b. Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 2, then check that the arm turns to "WARM" side
smoothly.
If operation is not as specified, replace the servomotor.
2. INSPECT POSITION SENSOR RESISTANCE
Measure resistance between terminals at each servomotor arm position as shown in the illustration.
If resistance is not as specified, replace the servomotor.