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) Service Manual: Power Window Switch Repair procedures
Inspection
[Driver Power Window Switch]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the driver door trim.
(Refer to Body - "Front Door Trim")
3.
Disconnect the power mirror switch connector from the door trim.
4.
Check for continuity between the terminals in each swi ...
Hyundai Elantra AD (2016-2020) Service Manual: Drive Belt Repair procedures
Removal
1.
Remove the drive belt.
(1)
Using the wrench, turning the drive belt tensioner (A) counterclockwise.
(2)
Disconnect the drive belt (A).
(3)
Remove the drive belt tensioner (A) and then remove the drive belt (B).
Inspection
1.
Check belt for maintenance and abnormal wea ...
