Temperature Control Actuator Repair Procedures

Inspection

1. 1
   Turn the ignition off.
2. 2
   Disconnect the temperature control actuator connector.
3. 3
   Make sure the temperature control actuator operates to the cold position when 12 V is applied to terminal 3 and ground is connected to terminal 7. Make sure the temperature control actuator moves to the warm position when the connections are reversed.

   

   1. - 2. - 3. Cool position 4. Sensor (+5V)

   5. Feedback signal 6. Sensor ground 7. Warm position

4. 4
   Connect the temperature control actuator connector.
5. 5
   Turn the ignition on.
6. 6
   Check the voltage between terminals 5 and 4. Specification

   Door Position	Voltage (V)	Fault Detection
   Max. Cool	0,3±0,15	Low voltage: 0.1 V or less High voltage: 4.9 V or more
   Max. Heat	4,7±0,15

   
   It will report the current actuator position to the controls.
7. 7
   If the temperature control actuator does not operate properly, replace it with a known good temperature control 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 air vent duct (A) after loosening the screw.

   

4. 4
   Disconnect the connector (A), then remove the temperature control actuator (B) after loosening the mounting screws.

   

5. 5
   Install in the reverse order of removal.