Contents Wiring diagrams Section: Heater All sections

Blower System Hyundai Santa Fe III

Heater 31 illustrations ~1117 words

Scheme 37

Scheme 37: Components Location

Scheme 38

Scheme 38: Components

Scheme 39

Scheme 39: Replacement

Scheme 40

Scheme 40

Scheme 41

Scheme 41

Scheme 42

Scheme 42

Scheme 43

Scheme 43

Scheme 44

Scheme 44

Scheme 45

Scheme 45

Scheme 46

Scheme 46

Scheme 47

Scheme 47

Scheme 48

Scheme 48

Scheme 49

Scheme 49

Scheme 50

Scheme 50

Scheme 51

Scheme 51

Scheme 52

Scheme 52
  1. Disconnect the negative (-) battery terminal.
  2. Recover the refrigerant with a recovery/recycling/charging station.
  3. When the engine is cool, drain the engine coolant from the radiator. Refer to «COOLANT»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system)
  4. Remove the expansion valve cover (A).
  5. Remove the expansion valve (A) from the evaporator core. Tightening torque: 7.8 ~ 11.7 N.m (0.8 ~ 1.2 kgf.m, 5.7 ~ 8.6 lb-ft) NOTE: Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination. When installing, replace with a new O-ring (B).
  6. Disconnect the inlet (A) and outlet (B) heater hoses from the heater unit. CAUTION: Engine coolant will run out when the hoses are disconnected; drain it into a clean drip pan. Be sure not to let coolant spill on electrical parts or painted surfaces. If any coolant spills, rinse it off immediately.
  7. Remove the cowl top cover. Refer to «COMPONENTS AND COMPONENTS LOCATION»(/hyundai/santa-fe/iii-2012-2016/remont/exterior-body-panels/#cowl-top-cover) .
  8. Remove the front pillar trim. Refer to " «FRONT PILLAR TRIM»(/hyundai/santa-fe/iii-2012-2016/remont/exteriorinterior-trim/#interior-trim) .
  9. Remove the front seat assembly. Refer to «FRONT SEAT ASSEMBLY»(/hyundai/santa-fe/iii-2012-2016/remont/seats/#front-seat) .
  10. Remove the floor console assembly. Refer to " «FLOOR CONSOLE ASSEMBLY»(/hyundai/santa-fe/iii-2012-2016/remont/exteriorinterior-trim/#floor-console) .
  11. Remove the shift lever assembly. Refer to «SHIFT LEVER»(/hyundai/santa-fe/iii-2012-2016/remont/automatic-trans/#automatic-transaxle-control-system) .
  12. Remove the cowl side trim. Refer to «COWL SIDE TRIM»(/hyundai/santa-fe/iii-2012-2016/remont/exteriorinterior-trim/#interior-trim) .
  13. Remove both sides of the crash pad side cover. Refer to «CRASH PAD SIDE COVER»(/hyundai/santa-fe/iii-2012-2016/remont/gauges-instrument-panels/#crash-pad) .
  14. Remove the crash pad lower panel. Refer to «CRASH PAD LOWER PANEL»(/hyundai/santa-fe/iii-2012-2016/remont/gauges-instrument-panels/#crash-pad) .
  15. Remove the passenger side crash pad under cover (A).
  16. Remove the steering wheel. Refer to «REPAIR PROCEDURES»(/hyundai/santa-fe/iii-2012-2016/remont/steering-column-switches/#multifunction-switch) .
  17. Remove the multifunction switch. Refer to «SPECIFICATIONS»(/hyundai/santa-fe/iii-2012-2016/remont/steering-column-switches/#multifunction-switch__specifications) .
  18. Remove the steering column shroud panel. Refer to «STEERING COLUMN SHROUD PANEL»(/hyundai/santa-fe/iii-2012-2016/remont/gauges-instrument-panels/#crash-pad) .
  19. Lower the steering column after loosening the mounting bolts. Refer to «STEERING COLUMN AND SHAFT»(/hyundai/santa-fe/iii-2012-2016/remont/electronic-steering/#electric-power-steering) .
  20. Remove the glove box housing. Refer to «GLOVE BOX HOUSING»(/hyundai/santa-fe/iii-2012-2016/remont/gauges-instrument-panels/#crash-pad) .
  21. After loosening the mounting bolts, remove the rear air duct (A).
  22. Disconnect the passenger compartment junction box connectors (A).
  23. Disconnect the multi box connectors (A). [Driver's side] [Passenger's side]
  24. Disconnect the airbag control module (SRSCM) connector (A).
  25. Disconnect the connector (A) and the mounting clips in the front pillar. [Driver's side] Passenger's side]
  26. After loosening the nuts and bolts remove the main crash pad (A) and cowl cross bar assembly (A) together.
  27. Loosen the drain hose fixing clip under the vehicle.
  28. Disconnect the heater unit connectors.
  29. Remove the heater and blower unit from the crash pad after loosening the mounting nuts.
  30. Separate the blower unit from the heater unit after loosening the screws.
  31. Install in the reverse order of removal.

Scheme 53

Scheme 53: Inspection
  1. Connect the battery voltage and check the blower motor rotation.
  2. If the blower motor does not operate well, substitute with a known-good blower motor and check for proper operation.
  3. Replace the blower motor if it is proved that there is a problem with it.

Scheme 54

Scheme 54: Replacement

Scheme 55

Scheme 55
  1. Disconnect the negative (-) battery terminal.
  2. Remove the passenger side crash pad under cover (A).
  3. Disconnect the blower motor connector (A) and then remove the blower motor (B) after loosening the screws.
  4. Install in the reverse order of removal.

Inspection

  1. Measure the resistance between the terminals.
  2. The measured resistance is not within specification, the blower resistor must be replaced. (After removing the resistor)

Scheme 56

Scheme 56

Scheme 57

Scheme 57: Replacement

Scheme 58

Scheme 58
  1. Disconnect the negative (-) battery terminal.
  2. Remove the passenger side crash pad under cover (A).
  3. Disconnect the connector (A) and then remove the blower resistor (B) after loosening the mounting screws.
  4. Install in the reverse order of removal.

Scheme 59

Scheme 59: Inspection
  1. Turn the ignition switch ON.
  2. Manually operate the control switch and measure the voltage of the blower motor.
  3. Select the control switch to raise the voltage until high speed. VOLTAGE SPECIFICATION Fan Speed (Manual) Motor Voltage (V) 1 3.8 2 4.9 3 6.1 4 7.2 5 8.3 6 9.5 7 11.3 8 Battery
  4. If the measured voltage is not within specification, substitute with a known-good PWM module and check for proper operation.
  5. Replace the PWM module if it is proved that there is a problem with it.

Scheme 60

Scheme 60: Replacement

Scheme 61

Scheme 61
  1. Disconnect the negative (-) battery terminal.
  2. Remove the passenger side crash pad under cover (A).
  3. Disconnect the connector (A) and then remove the PWM module (B) after loosening the mounting screws.
  4. Install in the reverse order of removal.

Description

The climate control air filter is located in the blower unit. It eliminates foreign materials and odor. The particle filter performs a role as an odor filter as well as a conventional dust filter to ensure comfortable interior environment.

Scheme 62

Scheme 62: Replacement

Scheme 63

Scheme 63

Scheme 64

Scheme 64

Scheme 65

Scheme 65
  1. Disconnect the stopper (B) from the glove box (A).
  2. Disconnect the air damper (A) from the glove box (B).
  3. Remove the filter cover (A) by pressing the knob.
  4. Replace the air filter (B) with a new one according to the direction of air filter. NOTE: To remove the filter easily, press the right side inward then pull out the filter. In case of driving in an air-polluted area or rugged terrain, check and replace the air filter as frequently as possible.

The intake actuator is located at the blower unit. It regulates the intake door by a signal from the control unit. Pressing the intake selection switch will shift between recirculation and fresh air modes.

Scheme 66

Scheme 66: Inspection
  1. Turn the ignition switch OFF.
  2. Disconnect the intake actuator connector.
  3. Verify that the intake actuator operates to the fresh air position when connecting 12V to terminal 3 and grounding terminal 7. Verify that the intake actuator operates to the recirculated air position when connected in reverse.
  4. Connect the intake actuator connector.
  5. Turn the ignition switch ON.
  6. Check the voltage between terminal 5 and 6. VOLTAGE SPECIFICATION Door position Voltage (V) Error detecting Fresh air 0.3±0.15 Low voltage: 0.1V or less High voltage: 4.9V or less Recirculated air 4.7±0.15 It will feedback the current position of the actuator to controls.
  7. If the intake actuator does not operate well, substitute with a known-good intake actuator and check for proper operation.
  8. Replace the intake actuator if it is proved that there is a problem with it.

Scheme 67

Scheme 67: Replacement
  1. Disconnect the negative (-) battery terminal.
  2. Remove the glove box housing. Refer to «GLOVE BOX HOUSING»(/hyundai/santa-fe/iii-2012-2016/remont/gauges-instrument-panels/#crash-pad) .
  3. Disconnect the connector (A) and then remove the intake actuator (B) after loosening the mounting screws.
  4. Install in the reverse order of removal.