Hyundai Elantra: Controller / Heater & A/C Control Unit (DATC) Components and Components Location
Hyundai Elantra AD (2016-2020) Service Manual / Heating, Ventilation and Air Conditioning / Controller / Heater & A/C Control Unit (DATC) Components and Components Location
| Components |
| Connector | Pin NO | Function | Connector | Pin NO | Function |
| A | 1 | Battery (+) | A | 21 | IGN1 |
| 2 | IGN2 | 22 | ILL+ (TAIL) | ||
| 3 | ISG B+ | 23 | Sensor ground REF (+5V) | ||
| 4 | Mode control actuator (Vent) | 24 | C_CAN High | ||
| 5 | Mode control actuator (Def) | 25 | C_CAN Low | ||
| 6 | Mode control actuator (Feedback) | 26 | HTD (Rear defog indicator) | ||
| 7 | Intake actuator (Fresh) | 27 | - | ||
| 8 | Intake actuator (Recirculation) | 28 | - | ||
| 9 | Intake actuator (Feedback) | 29 | Passenger's temperature control actuator (Cool) | ||
| 10 | Defogging actuator (On) | 30 | Passenger's temperature control actuator (Warm) | ||
| 11 | Defogging actuator (Off) | 31 | Passenger's temperature control actuator (Feedback) | ||
| 12 | Defogging actuator (Feedback) | 32 | PTC Relay 2 | ||
| 13 | Rear defog switch | 33 | PTC Relay 3 | ||
| 14 | Hazard switch | 34 | PTC on signal | ||
| 15 | Driver's temperature control actuator (Cool) | 35 | Detent out (-) | ||
| 16 | Driver'st emperature control actuator (Warm) | 36 | - | ||
| 17 | Driver's temperature control actuator (Feedback) | 37 | ECV + | ||
| 18 | - | 38 | ECV - (Ground) | ||
| 19 | Sensor ground | 39 | ILL- (RHEO) | ||
| 20 | Ground | 40 | Ground |
| Connector | Pin NO | Function | Connector | Pin NO | Function |
| B | 1 | Blower motor (+) | B | 9 | PAB IGN1 |
| 2 | FET Drain (Feedback) | 10 | Clean signal | ||
| 3 | FET (Gate) | 11 | Ionizer diagnosis | ||
| 4 | SBR | 12 | AMB sensor (+) | ||
| 5 | Rear SBR (LH) | 13 | EVAP sensor (+) | ||
| 6 | Rear SBR (Center) | 14 | Auto defogging sensor signal | ||
| 7 | Rear SBR (RH) | 15 | Photo sensor (-)_LH | ||
| 8 | PAB Off signal | 16 | Photo sensor (-)_RH |
Heater & A/C Control Unit (Manual) Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box upper cover assembly.
(Refer to Body - "Glove Box Upper Cover Assembly")
3.
Loosen the mounting screw ...
Heater & A/C Control Unit (DATC) Repair procedures
Self Diagnosis
1.
Self-diagnosis process.
•
When operating the self-diagnostics, the below fault
(self-diagnostics code) will blink at 0.5 seconds interval on the
t ...
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Diagnosis with GDS
1.
BSD system defects can be quickly diagnosed with the GDS. GDS
operates actuator quickly to monitor, input/output value and self
diagnosis.
2.
Connect the cable of GDS to the data link connector in driver side crash pad lower panel, turn the power on GDS.
3.
Sele ...
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the steering wheel.
(Refer to Steering System - "Steering Wheel")
3.
Remove the steering column upper and lower shrouds after loosening the screws.
(Refer to Body - "Steering Column Shroud Panal")
4.
Remove the cloc ...
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