2007 KIA CARNIVAL battery

2007 > 2.7L V6 GASOLINE >
INSPECTION
1.Ignition "ON"
2. Using the scan tool.
3. Check the output voltage of AQS between terminals 2 and 3.
Specification
Condition Output signal Fresh/recirculation
Normal condition 4 ~ 5VFresh
Hazardous gas detection 0 ~ 1VRecirculation
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.
When IG is turned ON, AQS heats for 34±5 seconds, it will output below 1.0 voltage during this time.
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Remove the front bumper (Refer to BD group).
3. Remove the AQS (A) after loosening the mounting screws (B).
4.Installation is the reverse order of removal.

2007 > 2.7L V6 GASOLINE >
INSPECTION
1.Ignition "ON"
2. Using the scan tool.
3. Check the frequency of humidity sensor between terminals 2 and 3.
Humidity (%) Frequency between terminals 2and 3 (Hz)
30 6976 ± 5%
50 6728 ± 5%
60 6600 ± 5%
70 6468 ± 5%
80 6330 ± 5%
90 6186 ± 5%
4. If the measured resistance is not specification, substitute with a known- good humidity sensor and check for proper
operation.
5. If the problem is corrected, replace the Humidity sensor.
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Remove the center facia lower panel (A). (Refer to BD group)
3. Disconnect the humidity sensor connector (A).
4. Loosen 2 screws and then remove the humidity sensor (B).
5.Installation is the reverse order of removal.

2007 > 2.7L V6 GASOLINE >
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Recover the refrigerant with a recovery/ recycling/ charging station. (Refer to HA - 8)
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 (A) and outlet (B) heater hoses from the heater unit.
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 (Refer to BD group).
7. Remove the cowl cross bar assembly. (Refer to BD group)
8. Disconnect the connectors from the temperature control actuator, the mode control actuator and the evaporator
temperature sensor.
9. Remove the heater & blower unit after loosening 3 mounting bolts.

1.Disconnect the negative ( - ) battery terminal.
2. Remove the driver’s crush pad lower panel (Refer to BD group).
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.

2007 > 2.7L V6 GASOLINE >
INSPECTION
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 1 and
grounding terminal 2.
4. Verify that the mode control actuator operates to the vent mode when connecting in the reverse.
[DRIVER]
[PASSENGER]
5.Check the voltage between terminals 3 and 4.
Door position Voltage (3- 4)Error detecting
Vent 0.4 ± 0.15VLow voltage :0.1V or less
Defrost 4.6 ± 0.15VHigh 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.
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Remove the driver’s crush pad lower panel (Refer to BD group).
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).

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
PTC (Positive Temperature Coefficient) heater (A) is an electric heater using a PTC element as an auxiliary heating
device that supplements deficiency of interior heat source in highly effective diesel engine (U engine).
An electric heater heats up the interior by directly heating the air that passes through the heater.
PTC = positive Temperature Coefficient
The name itself implies that the element has a proportional resistance change sensitive to temperature. PTC heater is
installed at the exit or the backside of heater core.
OPERATION PRINCIPLE
ECM outputs a PTC on signal. Operate PTC from 1st setting to 3rd setting with an interval of 15 seconds.
Heat up the air, which passes through a heater core.
OPERATION CONDITION
Judge the condition by ambient temperature is below 5°C, coolant temperature is below 70°C, and battery voltage is
above 11V and engine RPM is above 700RPM.

2007 > 2.7L V6 GASOLINE >
REPLACEMENT
1.Disconnect the negative(- ) battery terminal.
2. Recover the refrigerant with a recover/ recycling/ charging station.
3. When the engine is cool, drain the engine coolant from the radiator.
4. Remove luggage side trim(Refer to BD - ).
5. Loosen the refrigerant line mounting bolts, and then remove the rear refrigerant line(A).
6.Remove the heater hose(A), drain hose(B).
7.Remove the rear heater main connector(A).
8.Loosen the rear heater mounting nuts, and then remove the rear heater unit(A).

2007 > 2.7L V6 GASOLINE >
INSPECTION
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.
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Disconnect the connector (A) of the blower motor.
3. Remove the blower motor (A) after loosening the mounting screws.
4.Installation is the reverse order of removal.