engine coolant KIA CARNIVAL 2007 Owner's Guide

Faults with the following items will illuminate the MILa. Heated oxygen sensor (HO2S)
b. Mass Air Flow sensor (MAFS)
c. Throttle position sensor (TPS)
d. Engine coolant temperature sensor (ECTS)
e. Idle speed control actuator (ISCA)
f. Injectors
g. ECM
Refer to "INSPECTION CHART FOR DIAGNOSTIC TROUBLE CODES (DTC)" for more information.
1. After turning ON the ignition key, ensure that the light illuminates for about 5 seconds and then goes out.
2. If the light does not illuminate, check for an open circuit in the harness, a blown fuse or a blown bulb.
Self-Diagnosis
If a sensor connector is disconnected with the ignition switch turned on, the diagnostic trouble code (DTC) is
recorded. In this case, disconnect the battery negative terminal ( - ) for 15 seconds or more, and the diagnosis
memory will be erased.
THE RELATION BETWEEN DTC AND DRIVING PATTERN IN EOBD SYSTEM
1.When the same malfunction is detected and maintained during two sequential driving cycles, the MIL will
automatically illuminate.
2. The MIL will go off automatically if no fault is detected after 3 sequential driving cycles.
3. A Diagnostic Trouble Code(DTC) is recorded in ECM memory when a malfunction is detected after two sequential
driving cycles. The MIL will illuminate when the malfunction is detected on the second driving cycle.
If a misfire is detected, a DTC will be recorded, and the MIL will illuminate, immediately after a fault is first
detected.

detected.
4. A Diagnostic Trouble Code(DTC) will automatically erase from ECM memory if the same malfunction is not detected
for 40 driving cycles.
a.A "warm- up cycle" means sufficient vehicle operation such that the coolant temperature has risen by at least
40 degrees Fahrenheit from engine starting and reaches a minimum temperature of 160 degress Fahrenheit.
b. A "driving cycle" consists of engine startup, vehicle operation beyond the beginning of closed loop operation.

4. Manifold Absolute Pressure Sensor (MAPS)
17. ETC Module [Throttle Position Sensor (TPS) + ETC
Motor]5. Engine Coolant Temperature Sensor (ECTS)
7. Camshaft Position Sensor (CMPS) [Bank2]
6. Camshaft Position Sensor (CMPS) [Bank 1]
8. Crankshaft Position Sensor (CKPS)
9. Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1]10. Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2]
11. Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 1]12. Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 2]

67Variable Intake Solenoid Valve #2 control output
Manifold Side]
68 Throttle Position Sensor signal (PWM) output ABS/ESP Control Module
69 Cruise "MAIN" lamp control output Cruise "MAIN" Lamp
70 Fuel Pump Relay control output Fuel Pump Relay
71 Variable Intake Solenoid Valve #1 control output Variable Intake Solenoid (VIS) Valve #1 Surge
Tank Side]
72 Immobilizer lamp control output Immobilizer Lamp
73 -y
74 -y
75 -y
76 -y
77 -y
78 Purge Control Solenoid Valve control output Purge Control Solenoid Valve (PCSV)
79 Wheel Speed Sensor [Low] signal input Wheel Speed Sensor (WSS)(Without ABS/ESP
[Euro -
Ⅲ/Ⅳ])
80 Wheel Speed Sensor [High] signal input Wheel Speed Sensor (WSS)(Without ABS/ESP
[Euro -
Ⅲ/Ⅳ])
CONNECTOR [C151- 2] Pin
No. Description
Connected to
1 ETC Motor [- ] control output ETC Motor (in ETC Module)
2 ETC Motor [+] control output ETC Motor (in ETC Module)
3 -y
4 CVVT Oil Temperature Sensor signal input CVVT Oil Temperature Sensor (OTS)
5 -y
6 -y
7 Engine Coolant Temperature Sensor signal input Engine Coolant Temperature Sensor (ECTS)
8 Manifold Absolute Pressure Sensor signal input Manifold Absolute Pressure Sensor (MAPS)
9 -y
10 -y
11 Reference voltage (+5V) Manifold Absolute Pressure Sensor (MAPS)
12 Battery voltage supply after ignition switch Ignition Switch
13 Reference voltage (+5V) Throttle Position Sensor (TPS) #2
14 Sensor ground Throttle Position Sensor (TPS) #1
15 Reference voltage (+5V) Camshaft Position Sensor (CMPS) [Bank 2]
16 Reference voltage (+5V) Throttle Position Sensor (TPS) #1
17 Sensor ground Camshaft Position Sensor (CMPS) [Bank 2]
18 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1]
19 Ignition Coil (Cylinder #6) control output Ignition Coil (Cylinder #6)
20 -y
21 Crankshaft Position Sensor [High] signal input Crankshaft Position Sensor (CKPS)
22 -y
Knock Sensor (KS) [Bank 1], Knock Sensor (KS)

23Sensor Shield Knock Sensor (KS) [Bank 1], Knock Sensor (KS)
[Bank 2]
24 Camshaft Position Sensor [Bank 2] signal input Camshaft Position Sensor (CMPS) [Bank 2]
25 Camshaft Position Sensor [Bank 1] signal input Camshaft Position Sensor (CMPS) [Bank 1]
26 -y
27 -y
28 Sensor ground HO2S [B2 / S1] [Except for LEADED]
29 Sensor ground HO2S [B2 / S2] [Euro -Ⅲ/Ⅳ]
30 Sensor ground HO2S [B1 / S1] [Except for LEADED]
31 Sensor ground HO2S [B1 / S2] [Euro -Ⅲ/Ⅳ]
32 Reference voltage (+5V) Camshaft Position Sensor (CMPS) [Bank 1]
33 Sensor ground Engine Coolant Temperature Sensor (ECTS)
34 Sensor ground Manifold Absolute Pressure Sensor (MAPS),
CVVT Oil Temperature Sensor (OTS)
35 Power ground Chassis Ground
36 Power ground Chassis Ground
37 Power ground Chassis Ground
38 Power ground Chassis Ground
39 Power ground Chassis Ground
40 Ignition Coil (Cylinder #4) control output Ignition Coil (Cylinder #4)
41 Crankshaft Position Sensor [Low] signal input Crankshaft Position Sensor (CKPS)
42 -y
43 -y
44 -y
45 -y
46 -y
47 -y
48 Throttle Position Sensor #1 signal input Throttle Position Sensor (TPS) #1
49 Heated Oxygen Sensor [Bank 1 / Sensor 1] signal
input HO2S (B1/S1) [Except for LEADED]
50 Heated Oxygen Sensor [Bank 1 / Sensor 2] signal
input HO2S (B1/S2) [Euro -
Ⅲ/Ⅳ]
51 Heated Oxygen Sensor [Bank 2 / Sensor 1] signal
input HO2S (B2/S1) [Except for LEADED]
52 Heated Oxygen Sensor [Bank 2 / Sensor 2] signal
input HO2S (B2/S2) [Euro -
Ⅲ/Ⅳ]
53 Knock Sensor (KS) [Bank 2] [High] signal input Knock Sensor (KS) [Bank 2]
54 Knock Sensor (KS) [Bank 2] [Low] signal input Knock Sensor (KS) [Bank 2]
55 Knock Sensor (KS) [Bank 1] [Low] signal input Knock Sensor (KS) [Bank 1]
56 Knock Sensor (KS) [Bank 1] [High] signal input Knock Sensor (KS) [Bank 1]
57 Throttle Position Sensor #2 signal input Throttle Position Sensor (TPS) #2
58 Sensor ground Throttle Position Sensor (TPS) #2
59 -y
60 Ignition Coil (Cylinder #2) control output Ignition Coil (Cylinder #2)

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

Engine Coolant
Temperature Sensor (ECTS)

2007 > 2.7L V6 GASOLINE >
INSPECTION
FUNCTION AND OPERATION PRICIPLE
Engine Coolant Temperature Sensor (ECTS) is located in the engine coolant passage of the cylinder head for
detecting the engine coolant temperature. The ECTS uses a thermistor whose resistance changes with the
temperature. The electrical resistance of the ECTS decreases as the temperature increases, and increases as the
temperature decreases. The reference 5 V in the PCM is supplied to the ECTS via a resistor in the PCM.That is, the
resistor in the PCM and the thermistor in the ECTS are connected in series. When the resistance value of the
thermistor in the ECTS changes according to the engine coolant temperature, the output voltage also changes. During
cold engine operation the PCM increases the fuel injection duration and controls the ignition timing using the
information of engine coolant temperature to avoid engine stalling and improve drivability.
SPECIFICATION
Temperature Resistance(kΩ)
°C °F
- 40 - 4048.14
- 20 -414.13 ~ 16.83
0 325.79
20 682.31 ~ 2.59
40 104 1.15
60 140 0.59
80 176 0.32
CIRCUIT DIAGRAM

COMPONENT INSPECTION
1.Turn ignition switch OFF.
2. Disconnect ECTS connector.
3. Remove the ECTS.
4. After immersing the thermistor of the sensor into engine coolant, measure resistance between ECTS terminals 1
and 3.
5.Check that the resistance is within the specification.
Specification: Refer to SPECIFICATION.

COMPONENT INSPECTION
1.Turn ignition switch OFF.
2. Disconnect OTS connector.
3. Remove the OTS.
4. After immersing the thermistor of the sensor into water (or engine coolant), measure resistance between OTS
terminals 1 and 2.
5.Check that the resistance is within the specification.
Specification: Refer to SPECIFICATION.