cooling KIA CARNIVAL 2007 User Guide

5.Remove the ETC(Electric Throttle Control) bracket(A) and the cooling hoses(B).
6.Disconnect the brake vaccume hose(A).
7.Remove the surge tank mounting bracket(A).
8.Remove the surge tank(A).

MAIN SYMPTOMDIAGNOSTIC PROCEDURE ALSO CHECK FOR
Unable to start
(Engine does not turn
over) a.
Test the battery
b. Test the starter
c. Inhibitor switch (A/T) or clutch start switch (M/T)
Unable to start
(Incomplete
combustion) a.
Test the battery
b. Check the fuel pressure
c. Check the ignition circuit
d. Troubleshooting the immobilizer system (In case of
immobilizer lamp flashing) a.
DTC
b. Low compression
c. Intake air leaks
d. Slipped or broken timing belt
e. Contaminated fuel
Difficult to start a.
Test the battery
b. Check the fuel pressure
c. Check the ECTS and circuit (Check DTC)
d. Check the ignition circuit a.
DTC
b. Low compression
c. Intake air leaks
d. Contaminated fuel
e. Weak ignition spark
Poor idling
(Rough, unstable or
incorrect Idle) a.
Check the fuel pressure
b. Check the Injector
c. Check the long term fuel trim and short term fuel trim
(Refer to CUSTOMER DATASTREAM)
d. Check the idle speed control circuit (Check DTC)
e. Inspect and test the Throttle Body
f. Check the ECTS and circuit (Check DTC) a.
DTC
b. Low compression
c. Intake air leaks
d. Contaminated fuel
e. Weak ignition spark
Engine stall a.
Test the Battery
b. Check the fuel pressure
c. Check the idle speed control circuit (Check DTC)
d. Check the ignition circuit
e. Check the CKPS Circuit (Check DTC) a.
DTC
b. Intake air leaks
c. Contaminated fuel
d. Weak ignition spark
Poor driving
(Surge) a.
Check the fuel pressure
b. Inspect and test Throttle Body
c. Check the ignition circuit
d. Check the ECTS and Circuit (Check DTC)
e. Test the exhaust system for a possible restriction
f. Check the long term fuel trim and short term fuel trim
(Refer to CUSTOMER DATASTREAM) a.
DTC
b. Low compression
c. Intake air leaks
d. Contaminated fuel
e. Weak ignition spark
Knocking a.
Check the fuel pressure
b. Inspect the engine coolant
c. Inspect the radiator and the electric cooling fan
d. Check the spark plugs a.
DTC
b. Contaminated fuel
Poor fuel economy a.
Check customer's driving habits
a. Is A/C on full time or the defroster mode on?
b. Are tires at correct pressure?
c. Is excessively heavy load being carried?
d. Is acceleration too much, too often? a.
DTC
b. Low compression
c. Intake air leaks

28-y
29 -y
30 -y
31 -y
32 A/C Pressure Transducer signal input A/C Pressure Transducer (APT)
33 Sensor ground A/C Pressure Transducer (APT)
34 -y
35 -y
36 -y
37 -y
38 Battery voltage supply after main relay Main Relay
39 Battery voltage supply after main relay Main Relay
40 Battery voltage supply after main relay Main Relay
41 CAN [High] ABS/ESP Control Module
42 CAN [Low] ABS/ESP Control Module
43 Main Relay control output Main Relay
44 Intake Air Temperature Sensor signal input Intake Air Temperature Sensor (IATS)
45 Immobilizer communication line Immobilizer control module
46 -y
47 Mass Air Flow Sensor signal input Mass Air Flow Sensor (MAFS)
48 Sensor ground Accelerator Position Sensor (APS) #2
49 Accelerator Position Sensor #2 signal input Accelerator Position Sensor (APS) #2
50 -y
51 Cruise "SET" lamp control output Cruise "SET" Lamp
52 Vehicle speed signal input ABS/ESP Control Module (With ABS/ESP [Euro -
Ⅲ/Ⅳ])
Vehicle Speed Sensor (VSS) (Except Euro-
Ⅲ/Ⅳ)
53 Sensor ground Intake Air Temperature Sensor (IATS)
54 Accelerator Position Sensor #1 signal input Accelerator Position Sensor (APS) #1
55 Sensor ground Accelerator Position Sensor (APS) #1
56 -y
57 Sensor (+5V) Accelerator Position Sensor (APS) #2
58 Sensor (+5V) A/C Pressure Transducer (APT)
59 Sensor (+5V) Accelerator Position Sensor (APS) #1
60 -y
61 Engine speed signal output Cluster (Tachometer)
62 Fuel consumption signal output Trip Computer
63 Malfunction Indicator Lamp (MIL) control output Cluster (Malfunction Indicator Lamp)
64 A/C Compressor Relay control output A/C Compressor Relay
65 Cooling Fan [Low] control output Cooling Fan Relay [Low]
66 Cooling Fan [High] control output Cooling Fan Relay [High]
67 Variable Intake Solenoid Valve #2 control output Variable Intake Solenoid (VIS) Valve #2 [Intake
Manifold Side]

64A/C Compressor Relay control
output A/C OFF
DCBattery Voltage
13.97V
A/C ON Max. 1.0V175mV
65 Cooling Fan [Low] control output Fan OFF
DCBattery Voltage
13.77V
Fan ON Max. 1.0V175mV
66 Cooling Fan [High] control output Fan OFF
DCBattery Voltage
13.57V
Fan ON Max. 1.0V- 25mV
67 Variable Intake Solenoid Valve
#2 control output Active
DCMax. 1.0 V
13.77
Inactive Battery Voltage- 25mV
68 Throttle Position Sensor signal
(PWM) output
Idle
PulseHi: Battery Voltage
13.37V
Lo: 0 ~ 0.5 V - 25mV
69 Cruise "MAIN" lamp control
output Cruise OFF
DCBattery Voltage
12.37V
Cruise ON Max. 1.0V- 25mV
70 Fuel Pump Relay control output Relay OFF
DCBattery Voltage
12.57V
Relay ON Max. 1.0V- 25mV
71 Variable Intake Solenoid Valve
#1 control output Active
DCMax. 1.0 V
175mV
Inactive Battery Voltage13.77V
72 Immobilizer lamp control output Lamp OFF
DCBattery Voltage
12.77V
Lamp ON Max. 1.0V- 25mV
73 - yy y y
74 - yy y y
75 - yy y y
76 - yy y y
77 - yy y y
78 Purge Control Solenoid Valve
control output Inactive
PulseHi: Battery Voltage
13.83V
Active Lo: Max. 1.0V31.54mV
79 Wheel Speed Sensor [Low]
signal input y
y y y
80 Wheel Speed Sensor [High]
signal input y
y y y
CONNECTOR [C151- 2] Pin
No. Description
ConditionType LevelTest Result
1 ETC Motor [- ] control output IdlePulseHi: Battery Voltage
14.07V
Lo: Max . 1.0V - 125mV
2 ETC Motor [+] control output IdlePulseHi: Battery Voltage
14.07V
Lo: Max . 1.0V - 325mV
3 - yy y y
4 CVVT Oil Temperature Sensor
signal input Idle
Analog 0 ~ 5.0V 282mV at 96°C
5 - yy y y
6 - yy y y
7 Engine Coolant Temperature
Sensor signal input Idle
Analog 0 ~ 5.0V 1.88V

29.Lifting the vehicle up and lowering the jack slowly, remove the transaxle assembly.
INSTALLATION
Installation is in the reverse order of removal.
Perform the following :
a. Adjust the shift cable.
b. Refill the transaxle with fluid.
c. Refill the radiator with engine coolant.
d. Bleed air from the cooling system with the heater valve open.
e. Clean the battery posts and cable terminals with sandpaper, assemble them, and apply grease to prevent
corrosion.
1. Lowering the vehicle or lifting up a jack, install the transaxle assembly.
2. Tighten the transaxle lower mounting bolts (B- 4EA).
TORQUE:
65~85 Nm(6.5~8.5 kgf.m, 47.0~61.5 lb - ft)
3. Install the drive plate bolts (A) by turning the timing gear.
TORQUE:
46~53 Nm(4.6~5.3 kgf.m, 33.3~38.3 lb - ft)
4.After removing a jack, insert the drive shafts. (see DS group)
5. Install the sub frame. (see SS group).
6. Tighten the roll stopper mounting bolts.
TORQUE:
90~110 Nm(9~11 kgf.m, 65.1~79.5 lb - ft)
7. Connect the lower arm, the tie rod end ball joint, the stabilizer bar link to the front knuckle. (see SS group)

2007 > 2.7L V6 GASOLINE >
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant
charge, air flow or compressor.
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of
the problem. Check each part in order. If necessary, replace these parts.
After correcting the malfunction, check the complete system to ensure that performance is satisfactory.
STANDARD:
Symptom Suspect Area See page
No blower operation 1. Blower fuse
2. Blower relay
3. Blower motor
4. Power mosfet
5. Blower speed control switch
6. Wire harness
No air temperature control 1. Engine coolant capacity
2. Heater control assembly
No compressor operation 1. Refrigerant capacity
2. A/C Fuse
3. Magnetic clutch
4. Compressor
5. Dual pressure switch
6. A/C switch
7. Evaporator temperature sensor
8. Wire harness
No cool comes out 1. Refrigerant capacity
2. Refrigerant pressure
3. Drive belt
4. Magnetic clutch
5. Compressor
6. Dual pressure switch
7. Evaporator temperature sensor
8. A/C switch
9. Heater control assembly
10. Wire harness
Insufficient cooling 1. Refrigerant capacity
2. Drive belt
3. Magnetic clutch
4. Compressor
5. Condenser
6. Expansion valve
7. Evaporator
8. Refrigerant lines
9. Dual pressure switch
10. Heater control assembly
No engine idle - up when A/C switch
ON 1. Engine ECM
2. Wire harness
No air inlet control 1. Heater control assembly
No mode control 1. Heater control assembly
2. Mode actuator
No cooling fan operation 1. Cooling fan fuse
2. Fan motor
3. Engine ECM
4. Wire harness

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
A/C pressure transducer convert the pressure value of high pressure line into voltage value after measure it. By
converted voltage value, engine ECM controls cooling fan by operating it high speed or low speed. Engine ECM stop
the operation of compressor when the temperature of refrigerant line is so high or so low irregularly to optimize air
conditioning system.

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power
in order to prevent evaporator freezing by excessive cooling.

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 :
a. If you're installing a new evaporator, add refrigerant oil (ND - OIL8).
b. 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.
c. Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption.
d. 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
e. Apply sealant to the grommets.
f. Make sure that there is no air leakage.
g. Charge the system and test its performance.
h. Do not interchange the inlet and outlet heater hoses and install the hose clamps securely.
i. Refill the cooling system with engine coolant.

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.
[PASSENGER]
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
[DRIVER]
Specification
Door position Voltage (4- 5)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.
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.
REPLACEMENT