Repair Procedures: Inspection

WARNING: This page is about a different car, the 2011 Hyundai Elantra. However, it is still accessible from the selected car via links, so may be relevant.

Ignition "OFF"
Disconnect the connector of temperature control actuator.
Verify that the temperature control actuator operates to the hot position when connecting 12V to the terminal 3 and grounding terminal 7
Verify that the temperature control actuator operates to the cool position when connecting in the reverse.

[Drive]

Fig 1: Identifying Temperature Control Actuator Connector Terminals
Courtesy of HYUNDAI MOTOR CO.

Check the voltage between terminals 4and 5 (Drive)Specification

DOOR POSITION SPECIFICATION

Door position	Voltage(4-5)	Error detecting
Max. cooling	0.3 ± 0.15V	Low voltage: 0.1V or less
Max. heating	4.7 ± 0.15V	High voltage: 4.9V or more

[Passenger]

Fig 2: Identifying Temperature Control Actuator Connector (Passenger) Terminals

Courtesy of HYUNDAI MOTOR CO.

Check the voltage between terminals 4 and 5 (Passenger)

Specification

DOOR POSITION SPECIFICATION

Door position	Voltage(4-5)	Error detecting
Max. cooling	0.3 ± 0.15V	Low voltage: 0.1V or less
Max. heating	4.7 ± 0.15V	High voltage: 4.9V or more

It will feedback current position of actuator to controls.

If the measured voltage is not specification, substitute with a known-good temperature control actuator and check for proper operation.
If the problem is corrected, replace the temperature control actuator.