REPLACEMENT Hyundai Santa Fe II

REPLACEMENT

1. Discharge refrigerant from refrigeration system.
2. Replace faulty tube or hose. CAUTION: Cap the open fittings immediately to keep moisture or dirt out of the system.
3. Tighten joint of bolt or nut to specified torque. CAUTION: Connections should not be tighter than the specified torque. TIGHTENING TORQUE SPECIFICATION Part tightened N.m Kgf.m lbf.ft Condenser - Discharge hose 8 ~ 12 0.8 ~ 1.2 5.8 ~ 8.7 Condenser - Liquid tube Compressor - Discharge hose Compressor - Suction hose Expansion valve - Evaporator
4. Evacuate air in refrigeration system and charge system with refrigerant. FRONT ONLY : 600 ± 25 (g) (21.164 ± 0.88 [oz]) FRONT & REAR : 850 ± 25 (g) (29.98 ± 0.88 [oz])
5. Inspect for leakage of refrigerant. Using a gas leak detector, check for leakage of refrigerant.
6. Inspect A/C operation.

Scheme 31

The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator freezing by excessive cooling.

Scheme 32

1. Ignition "OFF"
2. Disconnect evaporator temperature sensor.
3. Using the multi-tester, Measure resistance between terminal "1" and "2" of evaporator temperature sensor. SPECIFICATION EVAPORATOR CORE TEMPERATURE AND RESISTANCE SPECIFICATION Evaporator core temperature [°C(°F)] Resistance [Kohms ] -10 (14) 43.35 -5 (23) 34.48 0 (32) 27.62 5 (41) 22.27 10 (50) 18.07 15 (59) 14.75 20 (68) 12.11 25 (77) 10.00 30 (86) 8.30 35 (95) 6.93 40 (104) 5.81 45 (113) 4.90 50 (122) 4.15
4. If the measured resistance is within specification, substitute with a known-good evaporator temperature sensor and check for proper operation.
5. If the problem is corrected, replace the evaporator temperature sensor.

Scheme 33

Scheme 34

1. Disconnect the negative (-) battery terminal.
2. Remove the center lower side cover.
3. Disconnect the evaporator sensor connector (A).
4. Remove the evaporator temperature sensor (B), by pulling it after rotating 90° in a counterclockwise direction. CAUTION: Take care that evaporator core pins are not bent.
5. Installation is the reverse order of removal.

Scheme 35

1. In-car air temperature sensor is located inside of the cresh pad panel.
2. The sensor contains a thermistor which measures the temperature of the inside. The signal, decided by the resistance value which changes in accordance with perceived inside temperature, is delivered to heater control unit and according to this signal the control unit regulates in car temperature to intended value.

Scheme 36

1. Ignition "ON"
2. Blow air with changing temperature to the in car sensor air inlet. Measure sensor resistance between 2 and 4 terminals. SPECIFICATION TEMPERATURE AND RESISTANCE SPECIFICATION Temperature [°C/°F)] Resistance between terminals 2 and 4 (kohms) 60 (140) 7.463 ± 2.6% 50 (122) 10.810 ±2.2% 35 (95) 19.59 ± 1.6% 25 (77) 30.00 ± 1.2% 15 (59) 47.130 ± 1.7% 0 (32) 97.710 ± 2.4% -15 (5) 216.1 ± 3.2% -30(-22) 509.36 ± 4.1% NOTE: In car sensor is negative type thermistor that resistance will rise with lower temperature, and reduce with higher temperature.

Scheme 37

1. Disconnect the negative (-) battery terminal.
2. Remove the A/C control panel. (Refer to «INTERIOR»(/hyundai/santa-fe/ii-2005-2010/remont/windows/#interior) ).
3. Disconnect the connector of in-car sensor (A). Loosen the mounting 1 screws and then remove the in-car sensor (B).
4. Installation is the reverse order of removal.

Scheme 38

1. The photo sensor (A) is located at the right side of defrost nozzle.
2. The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar radiation received by its light receiving portion, generates an electromotive force in proportion to the amount of radiation received which is transferred to the automatic temperature control module so that the solar radiation compensation will be performed.

Scheme 39

1. Ignition "ON"
2. Using the scan tool.
3. Emit intensive light toward photo sensor using a lamp, and check the output voltage change.
4. The voltage will rise with higher intensive light and reduce with lower intensive light.

Scheme 40

1. Disconnect the negative (-) battery terminal.
2. With the (-) driver, remove the photo sensor (B) from the center of defrost nozzle (A).
3. Install in the reverse order of removal.

Scheme 41

1. Water temperature sensor is located at the heater unit.
2. It detects coolant temperature. Its signal is used for cold engine lockout control. When the driver operates the heater before the engine is warmed up, the signal from sensor causes the heater control unit to reduce blower motor speed until coolant temperature reaches the threshold value.

Scheme 42

1. Ignition "ON"
2. Using the multi-tester, Measure resistance between terminal "1" and "2" of water temperature sensor. SPECIFICATION COOLANT TEMPERATURE AND RESISTANCE SPECIFICATION Coolant temperature (°C/°F)] Resistance (kohms) Voltage (V) -10 (14) 55.85 ± 3% 4.24 ± 3% 0 (32) 32.91 ± 3% 3.83 ± 3% 10 (50) 19.99 ±3% 3.33 ± 3% 20 (68) 12.51 ± 3% 2.78 ± 3% 30 (86) 8.047 ± 3% 2.23 ± 3% 40 (104) 5.311 ±3% 1.73 ± 3% 50 (122) 3.588 ± 3% 1.32 ± 3% 60 (140) 2.476 ± 3% 0.99 ± 3% 70 (158) 1.742 ±3% 0.74 ± 3% 80 (176) 1.246 ±3% 0.55 ± 3%
3. If the measured resistance is not specification, substitute with a known-good water temperature sensor and check for proper operation.
4. If the problem is corrected, replace the water temperature sensor. NOTE: Negative type thermistor that resistance will rise with lower temperature, and reduce with higher temperature.

Scheme 43

1. Disconnect the negative (-) battery terminal.
2. Remove the console side cover. (Refer to «INTERIOR»(/hyundai/santa-fe/ii-2005-2010/remont/windows/#interior) )
3. Disconnect the connector (A) of water temperature sensor and then remove the water temperature sensor (B) by pulling out.
4. Installation is the reverse order of removal. NOTE: Take care that wire of water temperature sensor is not to be damaged

Scheme 44

1. The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperatures.
2. The sensor output will be used for discharge temperature control, temperature regulation door control, blower motor level control, mix mode control and in-car humidity control. NOTE: During AUTO mode the A/C compressor will be stopped when the ambient temperature is below 2.0°C (35.6F). The compressor can still be turned on with manual control.

Scheme 45

1. Ignition "OFF"
2. Disconnect ambient temperature sensor.
3. Check the resistance of ambient temperature sensor between terminals 1 and 2 whether it is changed by changing of the ambient temperature. SPECIFICATION AMBIENT TEMPERATURE AND RESISTANCE SPECIFICATION Ambient temperature [°C(°F)] Resistance between terminals land 2 (kohms) -30(-22) 480.41 -20(-4) 278.85 -10 (14) 162.38 0 (32) 95.10 10 (50) 58.80 20 (68) 36.50 30 (86) 24.26 40 (104) 16.13 50 (122) 10.95 60 (140) 7.58
4. If the measured resistance is not specification, substitute with a known-good ambient temperature sensor and check for proper operation.
5. If the problem is corrected, replace the ambient temperature sensor.

Scheme 46

1. Disconnect the negative (-) battery terminal.
2. Remove the front bumper.
3. Remove the ambient temperature sensor (A).
4. Installation is the reverse order of removal.

Scheme 47

1. A.Q.S is located at center support in front of the engine radiator, and detects hazardous elements in ambient air providing output signal to control.
2. It will detect sulfurous acid gas, carbon dioxide, carbon monoxide, hydrocarbon and allergen.

Scheme 48

1. Ignition "ON"
2. Using the scan tool.
3. Check the output voltage of AQS between terminals 2 and 3. SPECIFICATION VOLTAGE SPECIFICATION Condition Output signal Fresh/recirculation Normal condition 4 ~ 4.6V Fresh Hazardous gas detection 0.6 ~ 1.2V Recirculation
4. AQS diagnosis and fail safe Detect the open of signal for 7 seconds without choosing the AQS switch when IG on. If 2.5V or more is detected for 3.5 seconds or more among 7 seconds, be judged the open of AQS signal. Operate as below fail safe function, while choosing AQS. Fail safe: Release the AQS (AQS cannot be selected), Fresh/recirculation maintains previous situation of AQS selection. NOTE: When IG is turned ON, AQS heats for 34±5 seconds, it will output below 1.0 voltage during this time.

Scheme 49

1. Disconnect the negative (-) battery terminal.
2. Remove the front bumper.
3. Remove the AQS (B) after loosening the mounting screws (A).
4. Installation is the reverse order of removal.

Scheme 50

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Scheme 58

Scheme 59

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.
4. Remove the bolts (A) and the expansion valve (B) from the evaporator core. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
5. Disconnect the inlet (C) and outlet (D) 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.
6. Remove the crash pad.
7. Remove the cowl cross bar assembly.
8. Disconnect the connectors from the temperature control actuator, the mode control actuator and the evaporator temperature sensor and blower motor.
9. Remove the heater & blower unit after loosening 3 mounting bolts.
10. Remove the blower unit (B) from heater unit after loosening 3 screws.
11. Remove the water temperature sensor. (Refer to «WATER TEMP SENSOR»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) )
12. Remove the heater core (B) after remove the cover (A).
13. Loosen a screw and then remove the heater unit cover (A).
14. Remove the evaporator core (A).
15. Be careful that the inlet and outlet pipe are not bent during heater core removal, and pull out the heater core.
16. Install the heater core in the reverse order of removal.
17. Installation is the reverse order of removal, and note these items : If you're installing a new evaporator, add refrigerant oil (ND-OIL8). Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the right O-rings for R-134a to avoid leakage. Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption. Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil contacts the paint, wash it off immediately Apply sealant to the grommets. Make sure that there is no air leakage. Charge the system and test its performance. Do not interchange the inlet and outlet heater hoses and install the hose clamps securely. Refill the cooling system with engine coolant.

Scheme 60

1. Heater unit includes mode control actuator and temperature control actuator.
2. Temperature control actuator is located at the heater unit. It regulates the temperature by the procedure as follows. Signal from control unit adjusts position of temperature door by operating temperature switch and then temperature will be regulated by the hot/cold air ratio decided by position of temperature door

Scheme 61

Scheme 62

1. Ignition "OFF"
2. Disconnect the connector of temperature control actuator.
3. Verify that the temperature control actuator operates to the hot position when connecting 12V to the terminal 3 and grounding terminal 4. Verify that the temperature control actuator operates to the cool position when connecting in the reverse. [DRIVER] SPECIFICATION VOLTAGE SPECIFICATION Door position Voltage (6-7) Error detecting Max. cooling 0.3 ± 0.15V Low voltage: 0.1V or less Max. heating 4.7 ± 0.15V High voltage : 4.9V or more [PASSENGER] SPECIFICATION VOLTAGE SPECIFICATION Door position Voltage (5-6) Error detecting Max. cooling 0.3 ± 0.15V Low voltage : 0.1V or less Max. heating 4.7 ± 0.15V High voltage: 4.9V or more It will feedback current position of actuator to controls.
4. If the measured voltage is not specification, substitute with a known-good temperature control actuator and check for proper operation.
5. If the problem is corrected, replace the temperature control actuator.

Scheme 63

Scheme 64

1. Disconnect the negative (-) battery terminal.
2. Remove the driver' s crush pad lower panel (Refer to «CRASH PAD»(/hyundai/santa-fe/ii-2005-2010/remont/windows/#interior) )
3. Disconnect the temperature control actuator connector (A) after removing the air duct.
4. Loosen the mounting screw and then remove the temperature control actuator (B). [PASSENGER'S] [DRIVER'S]
5. Installation is the reverse order of removal.

Scheme 65

The mode control actuator is located at the heater unit. It adjusts position of mode door by operating mode control actuator based on signal of A/C control unit. Pressing mode select switch makes the mode control actuator shift in order of vent --> B/L --> floor --> mix --> def.

Scheme 66

1. Ignition "OFF"
2. Disconnect the connector of mode control actuator.
3. Verify that the mode control actuator operates to the defrost mode when connecting 12V to the terminal 3 and grounding terminal 4.
4. Verify that the mode control actuator operates to the vent mode when connecting in the reverse.
5. Check the voltage between terminals 5 and 7. VOLTAGE SPECIFICATION Door position Voltage (5-7) Error detecting Vent 0.3 ± 0.15V Low voltage : 0.1V or less Defrost 4.7 ± 0.15V High voltage : 4.9V or more It will feedback current position of actuator to controls.
6. If the measured voltage is not specification, substitute with a known-good mode control actuator and check for proper operation.
7. If the problem is corrected, replace the mode control actuator.

Scheme 67

1. Disconnect the negative (-) battery terminal.
2. Remove the driver' s crush pad lower panel (Refer to «INTERIOR»(/hyundai/santa-fe/ii-2005-2010/remont/windows/#interior) ).
3. Disconnect the temperature control actuator connector (A) after removing the air duct.
4. Loosen the mounting screw and then remove the temperature control actuator (B).
5. Installation is the reverse order of removal.

Scheme 68

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Scheme 73

1. Disconnect the negative(-) battery terminal.
2. Recover the refrigerant with a recover/ recycling/ charging station.
3. Remove luggage side trim.
4. Remove the rear wheel guard.
5. Loosen the refrigerant line mounting nuts.
6. Loosen the refrigerant line mounting bolts, and then remove the rear refrigerant line (A).
7. Loosen the mounting bolts and a nut and then remove the rear heater unit (A).
8. Disconnect the rear evaporator core cover (A) and then remove the evaporator core (B).
9. Installation is the reverse order of removal.

Scheme 74

1. Connect the battery voltage and check the blower motor rotation.
2. If the blower motor voltage is not operated well, substitute with a known-good blower motor and check for proper operation.
3. If the problem is corrected, replace the blower motor.

Scheme 75

1. Disconnect the negative (-) battery terminal.
2. Remove luggage side trim. (Refer to «INTERIOR TRIM»(/hyundai/santa-fe/ii-2005-2010/remont/windows/#interior) )
3. Disconnect the connector (A) of the blower motor.
4. Remove the blower motor (B) after loosening the mounting screws.
5. Installation is the reverse order of removal.

Scheme 76

Scheme 77

1. Measure terminal-to-terminal resistance of the blower resistor.
2. If measured resistance is not within specification, the blower resistor must be replaced. (After removing the resistor)

Scheme 78

1. Disconnect the negative (-) battery terminal.
2. Remove the luggage side trim. (Refer to «INTERIOR TRIM»(/hyundai/santa-fe/ii-2005-2010/remont/windows/#interior) )
3. Disconnect the rear blower resister connector (A).
4. Remove rear blower resister (B) after loosening the mounting screws.
5. Installation is the reverse order of removal.

Scheme 79

[CONNECTOR]

CONNECTOR PIN REFERENCE

Scheme 80

Scheme 81

Scheme 82

1. Remove the rear side trim. (Refer to «INTERIOR TRIM»(/hyundai/santa-fe/ii-2005-2010/remont/windows/#interior) )
2. Loosen the mounting screw and then remove the rear blower controler (A) from the rear side trim.
3. Loosen the mounting screw and then remove the rear blower control unit (A) from the air vent (B).
4. Installation is the reverse order of removal.

Scheme 83

Scheme 84

Scheme 85

1. Disconnect the negative (-) battery terminal.
2. Remove the crush pad.(Refer to «CRASH PAD»(/hyundai/santa-fe/ii-2005-2010/remont/windows/#interior) )
3. Disconnect the connectors from the intake actuator, the blower motor and blower resister.
4. Remove the blower unit (A) from the heater unit after loosening a mounting bolt and 3 screws. NOTE: Make sure that there is no air leaking out of the blower and duct joints.
5. Installation is the reverse order of removal.

Scheme 86

1. Connect the battery voltage and check the blower motor rotation.
2. If the blower motor voltage is not operated well, substitute with a known-good blower motor and check for proper operation. VOLTAGE SPECIFICATION MANUAL AUTO 1 3.8V AUTO LO (4.5V) 2 4.9V 4.6~5.5V 3 6.1V 5.6~6.7V 4 7.2V 6.8~7.7V 5 8.3V 7.8~8.9V 6 9.5V 9.0~10.1V 7 10.6V 10.2~AUTO HI (10.6V) 8 B+
3. If the problem is corrected, replace the blower motor.

Scheme 87

Scheme 88

1. Disconnect the negative (-) battery terminal.
2. Remove the blower under cover after loosening 2 screws.
3. Disconnect the connector (A) of the blower motor.
4. Remove the blower motor (A) after loosening the mounting screws.
5. Installation is the reverse order of removal.

Scheme 89

Scheme 90

1. Ignition "ON"
2. Manually operate the control switch and measure the voltage of blower motor between pin 1 and 2.
3. Select the control switch to raise voltage until high speed. [SPECIFICATION] VOLTAGE SPECIFICATION Fan Motor Voltage Manual First speed 3.8 ±0.5V Second speed 4.9 ±0.5V Third speed 6.1 ±0.5 V Fourth speed 7.2 ±0.5V Fifth speed 8.3 ±0.5V Sixth speed 9.5 ±0.5V Seventh speed 10.6 ±0.5V eighth speed BAT(+) *AUTO COOLING: Auto speed (4.5V~B+) *AUTO HEATING: Auto speed (4.5V ~ 10.5V)
4. If the measured voltage is not specification, substitute with a known-good power mosfet and check for proper operation.
5. If the problem is corrected, replace the power mosfet.

Scheme 91

1. Disconnect the negative (-) battery terminal.
2. Disconnect the power mosfet connector (A) at the connecting part between heater and blower unit.
3. Remove the power mosfet (B) after loosening the mounting screws.
4. Installation is the reverse order of removal.

This has particle filter which eliminates foreign materials and odor. The particle filter includes odor filter as well as conventional dust filter to ensure comfortable interior environment.

Scheme 92

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Scheme 94

1. Open the glove box (B). Lower the glove box down completely by removing the glove box stopper (A) to the glove box.
2. Remove the glove box (B) from the left (A).
3. Remove the filter cover (A) with pushing the knob.
4. Replace the air filter (B). NOTE: In case of driving in an air-polluted area or rugged terrain, check and replace the air filter as frequently as possible. Replacement period : Approximately 15,000 km or 10,000 miles

Scheme 95

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

Scheme 96

1. Ignition "OFF"
2. Disconnect the intake actuator connector.
3. Verify that the actuator operates to the recirculation position when connecting 12V to the terminal 3 and grounding terminal 4.
4. Verify that the intake actuator operates to the fresh position when connecting in the reverse.
5. If the intake actuator is not operated well, substitute with a known-good intake actuator and check for proper operation.
6. If the problem is corrected, replace the intake actuator.

Scheme 97

1. Disconnect the negative (-) battery terminal.
2. Remove the glove box (Refer to «CRASH PAD»(/hyundai/santa-fe/ii-2005-2010/remont/windows/#interior) ).
3. Disconnect the intake actuator connector.
4. Loosen the mounting screw and then remove the intake actuator (A) from the blower unit.
5. Installation is the reverse order of removal.

Scheme 98

[CONNECTOR PIN FUNCTION]

CONNECTOR PIN FUNCTION REFERENCE

Scheme 99

Scheme 100

Scheme 101

1. Disconnect the negative (-) battery terminal.
2. Remove the crash pad center lower garnish (A).
3. Remove the heater & A/C controller (A) after loosening 4 screws.
4. Disconnect the connector (A).
5. Installation is the reverse order of removal.

Scheme 102

[CONNECTOR PIN FUNCTION]

CONNECTOR PIN FUNCTION REFERENCE

Scheme 103

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Scheme 106

1. Self-diagnosis process
2. How to read self-diagnostic code After the display panel flickers three times every 0.5 second, the corresponding fault code flickers on the setup temperature display panel every 0.5 second and will show two figures. Codes are displayed in numerical format FAULT CODE FAULT CODE REFERENCE Fault code Fail description Control unit DTC 00 - Normal 11 B1234 In-car temperature sensor open 12 B1233 In-car temperature sensor short 13 B1238 Ambient temperature sensor open 14 B1237 Ambient temperature sensor short 15 B1202 Water temperature sensor open 16 B1203 Water temperature sensor short 17 B1242 Evaporator temperature sensor open 18 B1241 Evaporator temperature sensor short 19 B1245 Temperature control actuator feed back open (Drive's) 19 B1246 Temperature control actuator feed back short (Drive's) 20 B2406 Temperature control actuator failure 21 B1249 Mode control actuator open 21 B1250 Mode control actuator short 22 B2409 Mode control actuator failure 25 B1208 Intake potentiometer open 25 B1209 Intake potentiometer short 26 B2408 Intake potentiometer failure 27 B1257 AQS sensor open 28 B1258 AQS sensor short 31 B1259 AQS sensor failure 32 B1204 Temperature control actuator open (Passenger's) 32 B1205 Temperature control actuator short (Passenger's) 33 B2415 Temperature control actuator failure DIAGNOSTIC TROUBLE CODE DTC (LIST) DTC Description «B1202»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) WATER TEMPERATURE SENSOR OPEN (HIGH) «B1203»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) WATER TEMPERATURE SENSOR SHORT (LOW) «B1204»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AIR MIX POTENTIOMETER OPEN (LOW) - PASSENGER'S «B1205»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AIR MIX POTENTIOMETER SHORT (HIGH) - PASSENGER'S «B1208»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) INTAKE POTENTIOMETER OPEN «B1209»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) INTAKE POTENTIOMETER SHORT «B1233»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) IN-CAR TEMPERATURE SENSOR SHORT (LOW) «B1234»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) IN-CAR TEMPERATURE SENSOR OPEN (HIGH) «B1237»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AMBIENT TEMPERATURE SENSOR SHORT (LOW) «B1238»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AMBIENT TEMPERATURE SENSOR OPEN (HIGH) «B1241»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) EVAPORATOR TEMPERATURE SENSOR SHORT (LOW) «B1242»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) EVAPORATOR TEMPERATURE SENSOR OPEN (HIGH) «B1245»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AIR MIX POTENTIOMETER OPEN (LOW) - DRIVER «B1246»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AIR MIX POTENTIOMETER SHORT (HIGH) - DRIVER «B1249»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) DIRECTION POTENTIOMETER OPEN (LOW) - DRIVER «B1250»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) DIRECTION POTENTIOMETER SHORT (HIGH) - DRIVER «B1257»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AQS OPEN «B1258»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AQS SHORT «B1259»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AQS FAILURE «B2406»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AIR MIX MOTOR (DRIVER) «B2408»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) INTAKE MOTOR FAILURE «B2409»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) DIRECTION CONTROL MOTOR (DRIVER) «B2415»(/hyundai/santa-fe/ii-2005-2010/remont/ac-compressor/#heating-ventilation-air-conditioning) AIR MIX MOTOR (PASSENGER)
3. Fault code display Continuance operation : DTC code is one. Continuance operation : DTC code is more two. STEP operation Normal or one fault code is same as a continuance operation. DTC code or more two.
4. Diagnostic procedure refer to DTC code.
5. Fail safe In-car temperature sensor: Control with the value of 25°C (77°F) Ambient temperature sensor: Control with the value of 20°C (67°F) Evaporator temperature sensor: Control with the value of -2°C (28.4°F) Temperature sensor: Control with the value of -2°C (28.4°F) Temperature control actuator (Air mix potentiometer): If temperature setting 17°C-24.5°C, fix at maximum cooling position. If temperature setting 25°C-32°C, fix at maximum heating position. Mode control actuator (Direction potentiometer): Fix vent position, while selecting vent mode. Fix defrost position, while selecting all except vent mode. Intake control actuator: Fix fresh position, while selecting fresh mode. Fix recirculation position, while selecting recirculation mode. AQS sensor: AQS operation OFF. Intake position : The position before selecting AQS switch.

1. Disconnect the negative (-) battery terminal.
2. Remove the crash pad center lower garnish (A).
3. Remove the heater & A/C controller (A) after loosening 4 screws.
4. Disconnect the connector (A).
5. Installation is the reverse order of removal.

Scheme 107