during testing. An example would be if a problem appears only when the vehicle is cold but has not appeared when
warm. In this case, the technician should thoroughly make out a "CUSTOMER PROBLEM ANALYSIS SHEET" and
recreate (simulate) the environment and condition which occurred when the vehicle was having the issue.1. Clear Diagnostic Trouble Code (DTC).
2. Inspect connector connection, and check terminal for poor connections, loose wires, bent, broken or corroded pins,
and then verify that the connectors are always securely fastened.
3.Slightly shake the connector and wiring harness vertically and horizontally.
4. Repair or replace the component that has a problem.
5. Verify that the problem has disappeared with the road test.
● SIMULATING VIBRATION
a. Sensors and Actuators
: Slightly vibrate sensors, actuators or relays with finger.
Strong vibration may break sensors, actuators or relays
b. Connectors and Harness
: Lightly shake the connector and wiring harness vertically and then horizontally.
● SIMULATING HEAT
a. Heat components suspected of causing the malfunction with a hair dryer or other heat source.
a.DO NOT heat components to the point where they may be damaged.
b. DO NOT heat the ECM directly.
● SIMULATING WATER SPRINKLING
a. Sprinkle water onto vehicle to simulate a rainy day or a high humidity condition.
DO NOT sprinkle water directly into the engine compartment or electronic components.
● SIMULATING ELECTRICAL LOAD
a. Turn on all electrical systems to simulate excessive electrical loads (Radios, fans, lights, rear window defogger,
etc.).
CONNECTOR INSPECTION PROCEDURE
J SpecificationItem Specification
Capacitance (pF) 950 ~ 1,350pF
CVVT OIL TEMPERATURE SENSOR (OTS)
J Type: Thermistor type
J Specification Temperature Resistance (kΩ)
°C °F
- 40 - 4052.0
- 20 -416.5
0 32 6.0
20 682.45
40 104 1.10
60 1400.544
80 1760.290
100 2120.164
120 2480.099
ACTUATORS
INJECTOR
J Number: 6
J Specification
Item Specification
Coil Resistance (Ω) 13.8 ~ 15.2 [20°C (68°F)]
PURGE CONTROL SOLENOID VALVE (PCSV)
J Specification Item Specification
Coil Resistance (Ω) 14.0 ~ 18.0 [20°C (68°F)]
VARIABLE INTAKE SOLENOID (VIS) VALVE #1 (SURGE TANK SIDE)
J Specification Item Specification
Coil Resistance (Ω) 29.0 ~ 35.0 [22°C (71.6°F)]
VARIABLE INTAKE SOLENOID (VIS) VALVE #2 (INTAKE MANIFOLD SIDE)
J Specification Item Specification
Coil Resistance (Ω) 29.0 ~ 35.0 [20°C (68°F)]
CVVT OIL CONTROL VALVE (OCV) [BANK 1]
J Specification Item Specification
2007 > 2.7L V6 GASOLINE >
DESCRIPTION
1.Engine is hard to start or does not start at all.
2. Unstable idle.
3. Poor driveability
If any of the above conditions are noted, first perform a routine diagnosis that includes basic engine checks (ignition
system malfunction, incorrect engine adjustment, etc.). Then, inspect the Gasoline Engine Control system components
with the HI- SCAN (Pro).
a. Before removing or installing any part, read the diagnostic trouble codes and then disconnect the battery
negative ( - ) terminal.
b. Before disconnecting the cable from battery terminal, turn the ignition switch to OFF. Removal or connection
of the battery cable during engine operation or while the ignition switch is ON could cause damage to the
ECM.
c. The control harnesses between the ECM and heated oxygen sensor are shielded with the shielded ground
wires to the body in order to prevent the influence of ignition noises and radio interference. When the shielded
wire is faulty, the control harness must be replaced.
d. When checking the generator for the charging state, do not disconnect the battery '+' terminal to prevent the
ECM from damage due to the voltage.
e. When charging the battery with the external charger, disconnect the vehicle side battery terminals to prevent
damage to the ECM.
Malfunction Indicator Lamp (MIL)
Faults with the following items will illuminate the MIL.
a. Catalyst
b. Fuel system
c. Mass Air Flow Sensor (MAFS)
d. Intake Air Temperature Sensor (IATS)
e. Engine Coolant Temperature Sensor (ECTS)
f. Throttle Position Sensor (TPS)
g. Upstream Oxygen Sensor
h. Upstream Oxygen Sensor Heater
i. Downstream Oxygen Sensor
j. Downstream Oxygen Sensor Heater
k. Injector
l. Misfire
m. Crankshaft Position Sensor (CKPS)
n. Camshaft Position Sensor (CMPS)
o. Evaporative Emission Control System
p. Vehicle Speed Sensor (VSS)
q. Idle Speed Control Actuator (ISCA)
r. Power Supply
s. ECM/ PCM
t. MT/AT Encoding
u. Acceleration Sensor
v. MIL- on Request Signal
w. Power Stage
Refer to "INSPECTION CHART FOR DIAGNOSTIC TROUBLE CODES (DTC)" for more information.
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.
13OIL TEMPERATURE °C40°CCurrent Oil temperature 80°C
14 SHIFT POSITION N,P,REV/1st G/…/5th
G D
Current shift position P, N
15 SELECT LEVEL P,N/R/D/SPORTS DCurrent shift lever position P, N
16 A/CON SWITCH OFF/ON/- /NOT
SUPP OFF
-
17 IDLE STATUS OFF/ON/- /NOT
SUPP ON
When idling, ON
18 BRAKE SWITCH OFF/ON/- /NOT
SUPP ON
When braking, ON
19 AUTO CRUISE
SWITCH OFF/ON/- /NOT
SUPP
20 AUTO CRUISE
RELEASE ―
―
21 SPORT MODE
SELECT SW OFF/ON/- /NOT
SUPP ON
When selecting sport mode, ON
22 SPORT MODE UP SW OFF/ON/- /NOT
SUPP ON
When Selecting Sport mode up, ON
23 SPORT MODE DOWN
SW OFF/ON/- /NOT
SUPP ON
When selecting sport mode down,
ON
24 A/T CONTROL RELAY
VOLT V
12.9V 0V
25 ENGINE TORQUE %20%
26 HIVEC MODE A/B/C/D/E/F/G/H/I/J/K FA/B/C/D is control mode, F is
release mode F
HIVEC - SAT(SIEMENS ADAPTIVE TRANSMISSION CONTROL) Mode (Shift Patten) Shift patten Description(Help)SCAN DISPLAY
ECONOMY Economy Driver shift patten for flat road A
MEDIUM Shift patten for medium road B
SPORTS Shift patten for sport road C
LOAD 1 Shift patten for low land, slow grade and slope D
LOAD 2 Shift patten for low land, steep grade and slope E
LOAD 3 Shift patten for downhill road F
LOAD 1 HI ALT Shift patten for high land, steep grade and slope G
LOAD 2 HI ALT Shift patten for low land, steep grade and slope H
HI TEMP Shift patten for high temperture ATF I
WARM UP Shift patten for exhaust gas decrease J
HOLD Shift patten for when hold, switch on K
Actuator inspection NO ITEM NAME Actuator DrivingCondition
1 LR SOLENOID(SCSV A) 1. IG Key ON
2. Inhibitor SW normal
3. P range
2
UD SOLENOID(SCSV B)
2007 > 2.7L V6 GASOLINE >
DESCRIPTION
Actuators
Solenoid Valve for Pressure Control
- Sensor type: Normal open 3 - way
- Operating temperature : - 30°C~130°C( - 22°F~266°F)
- Frequency:
LR, 2ND, UD, OD: 61.27Hz (at the ATF temp. above - 20°C(- 4°F))
DCC: 30.64Hz
- Internal resistance:
3.0 ± 0.5 Ω (LR, 2ND, UD, OD, TCC)
4.35 ± 0.5 Ω (VFS)
- Surge voltage: 56 V (Except VFS)
(LR, 2ND, UD, OD, DCC)
Location
Solenoid Valves Schedule
Position Solenoid valves
Operation LR2ND UDOD* DCC
1st gear OFFONOFF ONOFF
2nd gear ONOFF OFF ONOFF
3rd gear ONONOFF OFF ON
4th gear ONOFF ONOFF ON
Reverse OFFONONONOFF
N, P (STD. mode) OFFONONONOFF
N, P (Hold mode) ONOFF ONONOFF
*: Reference value.
(DCC solenoid valve will be ON when the operating condition is satisfied)
2007 > 2.7L V6 GASOLINE >
DESCRIPTION
Actuators
Solenoid Valve for Pressure Control
- Sensor type: Normal open 3 - way
- Operating temperature : - 30°C~130°C( - 22°F~266°F)
- Frequency:
LR, 2ND, UD, OD: 61.27Hz (at the ATF temp. above - 20°C(- 4°F))
DCC: 30.64Hz
- Internal resistance:
3.0 ± 0.5 Ω (LR, 2ND, UD, OD, TCC)
4.35 ± 0.5 Ω (VFS)
- Surge voltage: 56 V (Except VFS)
(VFS)
Location
VFS Control pressure
Input Current(mA) Control Pressure (No line pressure)
Increasing Current Decreasing Current
MAX. (Kgf/cm²) ¦Kpa§ MIN. (Kgf/cm²)
¦Kpa§ Δ
(Kgf/cm²) ¦Kpa§ MIN. (Kgf/cm²)
¦Kpa§
100 6.52¦639§ 5.87¦575§ ¦64§
200 6.23¦611§ 5.70¦559§ ¦52§5.43¦532§
300 5.76¦564§ 5.24¦514§ ¦50§4.49¦484§
400 5.08¦498§ 4.59¦450§ ¦48§4.30¦421§
500 4.24¦416§ 3.78¦370§ ¦46§3.52¦345§
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