Hyundai Elantra: Controller / Heater & A/C Control Unit (Manual) Components and Components Location
| Components |
| Connector | Pin NO | Function | Connector | Pin NO | Function |
| A | 1 | Low | B | 18 | ILL- (RHEO) |
| 2 | Common | 19 | Sensor ground | ||
| 3 | Ground | 20 | Ground | ||
| 4 | Middle Low | 21 | Battery (+) | ||
| 5 | Middle High | 22 | ISG DC | ||
| 6 | High | 23 | ISG B+ | ||
| B | 1 | IGN2 | 24 | ILL+ (TAIL) | |
| 2 | PAB IGN1 | 25 | Sensor REF (+5V) | ||
| 3 | HTD (Rear defog indicator) | 26 | EVAP sensor (+) | ||
| 4 | Detent Out (-) | 27 | AMB sensor (+) | ||
| 5 | PTC Relay 2 | 28 | Mode control actuator (Feedback) | ||
| 6 | PTC Relay 3 | 29 | Temperature control actuator (Feedback) | ||
| 7 | PTC on signal | 30 | Intake actuator (Feedback) | ||
| 8 | PAB Off signal | 31 | Mode control actuator (Vent) | ||
| 9 | SBR | 32 | Mode control actuator (Def) | ||
| 10 | Rear SBR [LH] | 33 | Temperature control actuator (Cool) | ||
| 11 | Rear SBR [Center] | 34 | Temperature control actuator (Warm) | ||
| 12 | Rear SBR [RH] | 35 | Intake actuator (Fresh) | ||
| 13 | ECV+ | 36 | Intake actuator (Recirculation) | ||
| 14 | ECV- (Ground) | 37 | C_CAN High | ||
| 15 | Max blower on signal | 38 | C_CAN Low | ||
| 16 | Rear defogging swich (On) | 39 | Blower common signal | ||
| 17 | Hazard signal | 40 | Ground |
Controller
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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 ...
Other information:
Hyundai Elantra AD (2016-2020) Owners Manual: Reverse Parking Aid Function
When you move the shift lever to the R (Reverse) position, the side view mirror(s)
will rotate downwards to aid with driving in reverse. The position of the side view
mirror switch (1) determines whether or not the mirrors will move:
Left/Right : When either the L (Left) or R (Right) switch i ...
Hyundai Elantra AD (2016-2020) Service Manual: Windshield Deicer
Components and Components Location
Component Location
Windshield deicer system prevent windshield wiper from
freezing in the winter season. It consists of deicer in the lower part
of windshield, switch and relay. Body control module receives an input
signal from the front defroster switch, ...
