2007 KIA CARNIVAL heating

2007 > 2.7L V6 GASOLINE >
INSPECTION
OPERATION TEST
Fuel-fired heater operation test by force using Hi-Scan
1. Start the engine.
2. Connect the Hi - Scan to the vehicle.
3. Select "SORENTO" and then select "FUEL FIRED HEATER".
4. Select "04. ACTUATION TEST" mode.
5. Select "PREFILLING + HEATING" to conduct the performance test after replacing the fuel fired heater system.
Fuel supply and heating will be initiated if the "F1 key STRT" is pressed.
However, a repair or replacement of the components related to the fuel line system in the fuel- fired heater were not
done, operate the component by force after selecting the appropriate item from the menu screen.
Do not operate the system by force with selecting the “ PREFILLING + HEATING ” option if no repair for the
fuel line relating components has been done.
This means the fuel is in the fuel line.If an excessive fuel is supplied, it may cause smoke and abnormal
"Banging" noise when the fuel is burned.
If the "F2 KEY STOP" is pressed, operation test is stopped.
For self - diagnosis test and sensors outputs during compulsory operation test, press "ESC KEY".
When a self - diagnosis test is completed, disconnect the self - diagnosis connector or press "F2 KEY STOP"
from the "PREFILLING + HEATING" menu to stop the compulsory operation.
In case of selecting the individual part (ex. Combustion air fan, water pump, ), press "ESC KEY" to stop the
test.
In case of selecting the "PREFILLING + HEATING" option, about 2 minutes are required to conduct cleaning
process after pressing the "F2 KEY STOP".
It is a normal process to burn the fuel left in the fuel line.
6. To conduct self diagnosis test, press "ESC" and then "01. DIAGNOSTIC TROUBLE CODES" option.
7.Select "02. CURRENT DATA" to view the current status of the components.

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 >
INSPECTION
Inspect the PTC operation by confirmation logic as below.
1. Entering method
(1) Set the floor mode, maximum heating
(2) Turn off the blower switch
(3) Press the intake button more than 5 times.
(4) Indicator of entire button is flashed with an interval of 0.5 seconds continuously (Manual).
Graphics of the entire LCD display switch on and off with an interval of 0.5 seconds continuously (Automatic)
(5) Confirm the PTC operation by operating the blower switch
Manual : 1~4 step, Automatic: 1~8step.
(6) Each PTC relay is operated with an interval of 3 seconds.
(7) Execute the PTC operation by confirmation logic for 30 seconds.
2. Cancellation method
(1) Select the A/C button or intake button.
(2) IG "OFF".
(3) Cancel the logic after 30 seconds automatically.
3. If the PTC operation is not operated, substitute with a known- good PTC and check for proper operation.
If the problem is corrected, replace the PTC.

2007 > 2.7L V6 GASOLINE >
INSPECTION
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 1 and
grounding terminal 2.
Verify that the temperature control actuator operates to the cool position when connecting in the reverse.
4.Check the voltage between terminals 3 and 4.
Specification
Door position Voltage (3- 4)Error detecting
Max. cooling 0.4 ± 0.15VLow voltage : 0.1V or less
Max. heating 4.6 ± 0.15VHigh voltage : 4.9V or more
* It will feedback current position of actuator to controls.
5. If the measured voltage is not specification, substitute with a known- good temperature control actuator and check
for proper operation.
6. If the problem is corrected, replace the temperature control actuator.
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Remove the luggage side trim (Refer to BD - ).
3. Remove the rear heater unit (Refer to HA - ).
4. Disconnect the temperature control actuator connector after removing the air duct.
5. Loosen the mounting screw and then remove the temperature control actuator (A).
6.Installation is the reverse order of removal.

2007 > 2.7L V6 GASOLINE >
INSPECTION
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
Fan Motor Voltage
Manual
First speed 4.0 ±0.5V
Second speed 5.1 ±0.5V
Third speed 6.2 ±0.5V
Fourth speed 7.3 ±0.5V
Fifth speed 8.4 ±0.5V
Sixth speed 9.5 ±0.5V
Seventh speed 10.5 ±0.5V
eighth speed Battary(+)
*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.
REPLACEMENT
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.

Brake disc run out
Limit : 0.03 mm (0.0012 in.) or less (new one)
2. If the run out of the brake disc exceeds the limit specification, replace the disc, and then measure the run out
again.
3. If the run out does not exceed the limit specification, install the brake disc after turning it 180° and then check the
run out of the brake disc again.
4. If the run out cannot be corrected by changing the position of the brake disc, replace the brake disc.
Seizing of Front brake disc
1.Remove the brake disc from hub using an M8 screw(A) if the brake disc has been seized with the hub due to
corrosion or overheating.
Be careful not to use a hammer. The disc can be damaged if you remove the disc from the hub by
hammering.

3.If the run out does not exceed the limit specification, install the brake disc after turning it 180° and then check the
run out of the brake disc again.
4. If the run out cannot be corrected by changing the position of the brake disc, replace the brake disc.
Seizing of Rear brake disc
1.Remove the brake disc from hub using an M8 screw (A) if the brake disc has been seized with the hub due to
corrosion or overheating.
Be careful not to use a hammer. The disc can be damaged if you remove the disc from the hub by
hammering.

b.If the washer signal is active for T1 (between 60ms and 300ms), the rear wiper output is turned on for T2
(2.5~3.8 sec.), T3 (300ms) after the washer has been turned ON.
Rear washer activated for T1 : [60ms;300ms]
T1 : 0.06 ~ 0.3 sec.
T2 : 2.5~3.8sec.
T3 : 0.3 sec.
3. Functional diagram
Defog
This function controls the heating defog grids on windshield, rear glass, and rear view mirrors.
1. Working Conditions
The defog function can be activated only when engine is running and ignition key is in RUN position.
a. When windshield defog switch is pushed, windshield defog is activated for 20 minutes.
b. While windshield defog is on, the windshield defog button is illuminated
c. If the switch is pushed again while defog is already active, defog stops.
d. If the engine stops while defog is on, defog stops and it is NOT automatically turned on when the engine is
started again
e. Rear defog works exactly in the same way as windshield defog using the rear defog switch button as input.
f. When rear defog is active, rear defog switch indicator is ON.
g. Rear defog ctrl output controls rear glass defog as well as rear view mirrors defog.
2. Rear defog pause
a. When IPM receives Tailgate Flasher CAN message, rear defog is inhibited for 30s
b. The 20min rear defog timer is frozen during this pause.
c. If the user turns on rear defog function while this pause is going on, Rear defog ctrl is set to ON only at the end
of the pause.
d. This pause has no impact on rear defog switch illumination.
e. When IPM receives Tailgate open CAN message transition to OPEN value, this 30 s rear defog pause is also
started, it works the same way as described above.