Hyundai Elantra: Controller / Heater & A/C Control Unit (Manual)

Hyundai Elantra (CN7) 2021-2024 Service Manual / Heating, Ventilation and Air Conditioning / Controller / Heater & A/C Control Unit (Manual)

Components and components location

Components

[This illustration shows the LHD type. RHD type is symmetrical.]

[Connector A]

Pin No	Function	Pin No	Function
1	Low (Register specifications)	4	Middle Low (Register specifications)
2	Common (Register specifications)	5	Middle High (Register specifications)
3	Ground (Register specifications)	6	High (Register specifications)

[Connector B]

Pin No	Function	Pin No	Function
1	Battery (+)	21	IGN2
2	ISG B+	22	IGN1
3	ILL+ (TAIL)	23	Blower IS (PWM specifications)
4	Sensor REF (+5V)	24	-
5	Mode control actuator (Feedback)	25	-
6	Temperature control actuator (Feedback)	26	-
7	Intake actuator (Feedback)	27	Blower Max. On signal (Register specifications)
8	EVAP sensor (+)	28	-
9	AMB sensor (+)	29	PTC relay
10	Mode control actuator (Vent)	30	-
11	Mode control actuator (DEF)	31	-
12	Temperature control actuator (Cool)	32	-
13	Temperature control actuator (Warm)	33	P_CAN High
14	Intake actuator (FRE)	34	P_CAN Low
15	Intake actuator (REC)	35	Blower INH (PWM specifications)
16	HDT	36	Blower PWM (In) (PWM specifications)
17	-	37	ECV (+)
18	-	38	ECV (-)
19	Blower signal (On) (Register specifications)	39	Sensor ground
20	ILL- (RHEO)	40	Ground

Repair procedures

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the crash pad lower panel. (Refer to Body (Interior and Exterior) - "Crash Pad Lower Panel")

3.	Remove the steering column shroud upper panel (A).

4.	Remove the gear knob & boots (A) pull both of it up.

5.	Using a screwdriver or remover, remove the floor console side garnish (A).

6.	Remove the parking brake cover (A).

7.	Using a screwdriver or remover, remove the console upper cover (A).

8.	Using a screwdriver or remover, remove the crash pad garnish [CTR] (A).

9.	After loosening the mounting screws, remove the A/C & heater controller unit (A).

10.	Disconnect the A/C & heater controller connectors (A).

11.

To install, reverse the removal procedure.

•	Make sure the connector are connected in properly.

•	Replace any damaged clips (or pin-type retainers).

Controller

Heater & A/C Control Unit (DATC)

Components and components location Components[This illustration shows the LHD type. RHD type is symmetrical.][Connector A] Pin No Function Pin No Function 1Battery9IGN22ILL+ (TAIL)10ISG Battery (+)3-11IGN14LIN BUS12HTD5-13-6-14-7-15-8RHEO (ILL-)16Ground Repair procedures Self Diag..

Other information:

Hyundai Elantra (CN7) 2021-2024 Owner's Manual: Limitations of the function

Forward Collision-Avoidance Assist may not operate normally, OR the function may operate unexpectedly under the following circumstances: The detecting sensor or the surroundings are contaminated or damaged The temperature around the front view camera is high or low The camera lens is contaminated due to tinted, filmed or coated windshield, damaged glass, or stuck of foreign mate..

Hyundai Elantra (CN7) 2021-2024 Owner's Manual: System operation

Ventilation 1. Select the Face Level mode. 2. Set the air intake control to fresh mode. 3. Set the temperature control to the desired position. 4. Set the fan speed control to the desired speed. Heating 1. Select the Floor Level mode. 2. Set the air intake control to fresh mode. 3. Set the temperature control to the desired position. 4. Set the fan speed control to the desired speed. 5. If..

Tilting the sunroof

Tilt the sunroof open:

Push the sunroof control lever upward until the sunroof moves to the desired position.

To close the sunroof:

Press the sunroof lever forward until the sunroof moves to the desired position.