Auto Defog Actuator Repair Procedures

Inspection

1. 1
   Turn the ignition off.
2. 2
   Disconnect the negative (-) battery terminal.
3. 3
   Make sure the automatic defogging actuator operates to the open position when 12 V is applied to terminal 3 and ground is connected to terminal 4. Make sure the automatic defogging actuator operates to the closed position when the connections are reversed.
4. 4
   Connect the defogger actuator connector.
5. 5
   Turn the ignition on.
6. 6
   Check the voltage between terminals 5 and 6.

   

   1. -	5. Sensor ground
   2. -	6. Feedback signal
   3. DEF (OFF)	7. Sensor (+5V)
   4. DEF (ON)

   
   Specification

   Door Position	Voltage (V)	Fault Detection
   Auto Defog OFF (Closed)	0,30±0,15	Low voltage: 0.1 V or less High voltage: 4.9 V or more
   Auto Defog ON (Open)	3,0±0,15

   
   It will report the current actuator position to the controls.
7. 7
   If the automatic defogging actuator does not operate properly, replace it with a known good automatic defogging actuator and check for correct operation. Use the replaced actuator if it operates well.

Replacement

1. 1
   Disconnect the negative (-) battery terminal.
2. 2
   Remove the emergency pad lower panel. (Refer to Body - "Emergency Pad Lower Panel")
3. 3
   Remove the driver side vent (A) after loosening the mounting screw.

   

4. 4
   Install in the reverse order of removal.