Hyundai Sonata LF: Controller / Heater & A/C Control Unit (Manual) Components and Components Location
| Components |
| Pin NO | Function | Pin NO | Function |
| 1 | ILL+ (TAIL) | 21 | Detent OUT (+) |
| 2 | Sensor REF (+5V) | 22 | HTD |
| 3 | Mode control actuator (Vent) | 23 | Rear defog switch |
| 4 | Mode control actuator (Defrost) | 24 | C_CAN High |
| 5 | Mode control actuator (Feedback) | 25 | C_CAN Low |
| 6 | Intake actuator (Fresh) | 26 | ECV+ |
| 7 | Intake actuator (Recirculation) | 27 | ECV- (Ground) |
| 8 | Intake actuator (Feedback) | 28 | AMB Sensor (+) |
| 9 | Driver's temperature control actuator (Cool) | 29 | EVAP Sensor (+) |
| 10 | Driver's temperature control actuator (Warm) | 30 | Blower MAX signal |
| 11 | Driver's temperature control actuator (Feedback) | 31 | Blower ON signal |
| 12 | Driver's seat heat indicator (Low) | 32 | - |
| 13 | Driver's seat heat indicator (Mid) | 33 | - |
| 14 | Driver's seat heat indicator (High) | 34 | - |
| 15 | Passenger's seat heat indicator (Low) | 35 | - |
| 16 | Driver's seat heat switch | 36 | - |
| 17 | Passenger's seat heat switch | 37 | - |
| 18 | Driver's cool switch | 38 | - |
| 19 | Passenger's cool switch | 39 | - |
| 20 | ILL- (RHEO) | 40 | Sensor ground |
| Pin NO | Function | Pin NO | Function |
| 1 | Ground | 9 | Ground |
| 2 | Driver's seat vent indicator (Low) | 10 | - |
| 3 | Driver's seat vent indicator (Mid) | 11 | - |
| 4 | Driver's seat vent indicator (High) | 12 | Passenger's seat heat indicator (Mid) |
| 5 | Passenger's seat vent indicator (Low) | 13 | Passenger's seat heat indicator (High) |
| 6 | Passenger's seat vent indicator (Mid) | 14 | - |
| 7 | Passenger's seat vent indicator (High) | 15 | IGN1 |
| 8 | IGN2 | 16 | Battery (+) |
| Pin NO | Function | Pin NO | Function |
| 1 | Low | 4 | Middle Low |
| 2 | Common | 5 | Middle High |
| 3 | Ground | 6 | High |
Controller
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Heater & A/C Control Unit (Manual) Repair procedures
Replacement 1. Disconnect the negative (-) battery terminal. 2. Using a screwdriver or remover, remove the center fascia panel (A). 3. Disconnect the A/C & heater controller connectors (A)...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Specifications
Specifications Fuel Delivery System ItemsSpecificationFuel TankCapacity70 lit. (18.5 U.S.gal., 74.0 U.S.qt., 61.6 Imp.qt.)Fuel FilterTypePaper typeFuel PressureLow Pressure Fuel Line480 ~ 500 kPa (4.89 ~ 5.1 kgf/cm?, 69.6 ~ 72.5 psi)High Pressure Fuel Line2...
Hyundai Sonata LF 2014-2019 Service Manual: Injector Repair procedures
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the injector connector. 3. Measure resistance between the injector terminals 1 and 2. 4. Check that the resistance is within the specification. Specification: Refer to “Specification” Removal In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by leakage of the high pressure fuel...
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