Hyundai Elantra: 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: Engine Oil Repair procedures
Oil And Filter Replacement
•
Prolonged and repeated contact with mineral oil will result
in the removal of natural fats from the skin, leading to dryness,
irritation and dermatitis. In addition, used engine oil contains
potentially harmful contaminants which may c ...
Hyundai Elantra AD (2016-2020) Service Manual: Drive Belt Tensioner Repair procedures
Removal and Installation
1.
Disconnect the drive belt.
(Refer to Timing System - "Drive Belt")
2.
Remove the drive belt tensioner (A).
Tightening torque :
center bolt : 29.4 ~ 41.2 N.m (3.0 ~ 4.2 kgf.m, 21.7 ~ 30.4 lb-ft)
fxing bolt : 39.2 ~ 49.0 N.m (4.0 ~ 5.0 kgf.m, 28.9 ~ 36.2 lb-ft ...
