Triple pressure switch system
The cause is probably a defective dual pressure switch circuit or a
defective TCM(PCM).a.
Malfunction of the triple pressure switch
b. Malfunction of connector
c. Malfunction of A/C system
d. Malfunction of the TCM(PCM)
Vehicle speed sensor system
The cause is probably a defective vehicle speed sensor circuit or a
defective TCM(PCM). a.
Malfunction of the vehicle speed sensor
b. Malfunction of connector
c. Malfunction of the TCM(PCM)
DTC TROUBLESHOOTING INDEX
No. Code ItemMILRemark
1 P0707 TRANSAXLE RANGE SWITCH CIRCUIT LOW INPUT ON
2 P0708 TRANSAXLE RANGE SWITCH CIRCUIT HIGH INPUT ON
3 P0711 TRANSAXLE FLUID TEMPERATURE SENSOR RATIONALITY ON
4 P0712 TRANSAXLE FLUID TEMPERATURE SENSOR CIRCUIT LOW INPUT ON
5 P0713 TRANSAXLE FLUID TEMPERATURE SENSOR CIRCUIT HIGH INPUT ON
6 P0717 A/T INPUT SPEED SENSOR CIRCUIT - OPEN or SHORT(GND) ON
7 P0722 AT OUTPUT SPEED SENSOR CIRCUIT - OPEN or SHORT(GND) ON
8 P0731 GEAR 1 INCORRECT RATIO ON
9 P0732 GEAR 2 INCORRECT RATIO ON
10 P0733 GEAR 3 INCORRECT RATIO ON
11 P0734 GEAR 4 INCORRECT RATIO ON
12 P0741 TORQUE CONVERTER CLUTCH STUCK OFF ON
13 P0742 TORQUE CONVERTER CLUTCH STUCK ON ON
14 P0743 TORQUE CONVERTER CLUTCH CONTROL SOLENOID VALVE - OPEN or
SHORT(GND) ON
15 P0748 VFS SOLENOID OFF
16 P0750 LOW and REVERSE SOLENOID VALVE CIRCUIT - OPEN or SHORT(GND) ON
17 P0755 UNDER DRIVE SOLENOID VALVE CIRCUIT - OPEN or SHORT(GND) ON
18 P0760 SECOND SOLENOID VALVE CIRCUIT - OPEN or SHORT(GND) ON
19 P0765 OVERDRIVE SOLENOID VALVE CIRCUIT - OPEN or SHORT(GND) ON
20 P0885 A/T CONTROL RELAY - OPEN or SHORT(GND) ON
21 P0890 TCM power Relay sense circuit low ON
22 P0891 TCM power Relay sense circuit High ON
Failsafe
Activation and deactivation of error failsafe is coordinated Error failsafe Management.
Once Error failsafe is activated, it will be kept until ignition key OFF.
In every new TCM start, TCM start with No Error failsafe and No Error present.
0. Mechanical Limp Home Mode
a. Switch off A/T relay
1. Electrical Limp Home Mode a. Keep 2nd / 3rd gear
2. Prohibit Intelligent Shift a. Fuzzy SAT(Siements Adaptive Transmission) shift pattern (Medium Driver, Sporty Driver) will not be used
3. Prohibit Adaptive Controla. No learning is done
6. Prohibit Torque Reduction Request a. No torque reduction is sent to ECU
7. Prohibit Lockup Control a. Stay in non- lockup control state
8. Substitute Input Value Oil Temperature a. Set oil temperature(tf) to 80° C (192°F)
9. Substitute Value Speed Ratio a. Set speed ratio to 0.7
10. Substitute CAN Input Value a. Set engine torque to 42 Ë
b. Set throttle position to 50Ë
c. Set accelerator pedal signal to 50 Ë
d. Set engine speed (Ne) to 3000 rpm
e. Set vehicle speed to 0 km/h
f. Set status of air condition relay to OFF
11. Prohibit VFS control a. Stop the Line Pressure Control till IG Off
Failsafe according to the DTC
a.Refer the detail description in the previous page for the indicated number on the ‘Failsafe’ column.
Items Type of errorFailsafeOBD - II
relevant DTC DTC
Oil temperature sensor Short to ground
2, 3, 7, 8, 11P0712
P0712
Open or short to B+ P0713P0713
Stuck signal P0711P0711
Sensor fail P0711P0711
PG- A Short to ground
1,11P0717
P0717
Open or short to B+
PG- B Short to ground
P0722P0722
Open or short to B+
Sensor fail P0721P0721
Brake switch Open
2―P0713
Short to B+
LR Solenoid valve Short to B+
0,11P0750
P0750
Open or short to ground
2nd Solenoid valve Short to B+
P0760P0760
Open or short to ground
UD Solenoid valve Short to B+
P0755P0755
Open or short to ground
OD Solenoid valve Short to B+
P0765P0765
Open or short to ground
Open or short to B+ P0765P0765
DCC Solenoid valveShort to B+
P0743P0743
Open or short to ground
1st speed asynchronous Synchronous error
0,11P0731
P0731
2nd speed asynchronous Synchronous error P0732P0732
3rd speed asynchronous Synchronous error P0733P0733
4th speed asynchronous Synchronous error P0734P0734
Reverse speed asynchronous Synchronous error ――
CAN No ID from ECM
2,3,6,7,9,10,11―
P1604
CAN BUS off ―P1603
Damper clutch Abnormal system 7P0741P0741
A/T relay Short to ground or open 0,11P0885P0885
Inhibitor switch Short to ground or open
―P0707
P0707
Short to B+ or short between switches P0708P0708
VFS Short to B+
11
―P0748
Short to ground 0,11
Open 11
CKP sensor Sensor errorNe=3,000rpm
7,9 ―
―
TPS sensor Sensor errorTPS=50Ë――
SERVICE DATA LIST(WITH SCAN TOOL)
No.ITEM NAME UNITDATA Data Description Failure
1 ENGINE RPM rpm700 rpmCurrent Engine rpm 0 rpm
2 VEHICLE SPEED km/h0km/hCurrent Vehicle speed 0km/h
3 THROTTLE
P.SENSOR %
12.5%Current TPS open angle 0%
4 INPUT SPEED(PG - A) rpm700 rpmInput speed rpm. Always output rpm
when turning start ON 0 rpm
5 OUTPUT SPEED(PG -
B) rpm
0 rpmOutput speed rpm. Always output
rpm when driving 0 rpm
6 DCC(TCC) SOLENOID
DUTY %
0%Control 0%
→ 100% when
operating Damper Clutch
7 DAMPER CLUTCH
SLIP rpm
260 rpmCurrent Damper clutch slip ratio 0 rpm
8 LR SOLENOID DUTY %100%Control 100%
→ 0% when
operating brake 0%
9 UD SOLENOID DUTY %100%Control 100%
→ 0% when
operating clutch 0%
10 2ND SOLENOID DUTY %100%Control 100%
→ 0% when
operating clutch 0%
11 OD SOLENOID DUTY %100%Control 100%
→ 0% when
operating clutch 0%
12 VFS SOLENOID DUTY Ë0~400Ë ―
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)
32ND SOLENOID(SCSV C)
Solenoid valve driver for 5sec.3. P range
4. Vehicle speed 0km/h
5. Engine stop
6. No failure
7. TPS < 1V
4
OD SOLENOID(SCSV D)
5 TORQUE CONVERTER SOLENOID VALVE
6 A/T CONTROL RELAY OFF for 3 sec. -
7 INTELLIGENT SHIFT PROHIBIT Prohibit until IG off -
8 CLEAR LEARNING VALUE --
ROAD TEST
No.Condition OperationJudgment value Check item
1 Ignition switch : OFF
Ignition switch
(1) ON Battery voltage (mV)
Control relay
2 a.
Ignition switch :
ON
b. Engine : Stopped
c. Selector lever
position : P Selector lever position
(1) P, (2) R, (3) N, (4) D
(1) P, (2) R, (3) N, (4)
DTransaxle range switch
Accelerator pedal
(1) Released
(2) Half depressed
(3) Depressed (1) 400~1,000 mV
(2)Gradually rises
from (1)
(3) 4,500~5,000 mVThrottle position sensor
Brake pedal
(1) Depressed
(2) Released (1) ON
(2) OFF
Brake switch
3 a.
Ignition switch : ST
b. Engine : Stopped Starting test with lever P or
N range
Starting should be
possibleStarting possible or
impossible
4 Warming up
Drive for 15 minutes or
more so that the automatic
fluid temperature becomes
70~90°C Gradually rises to
70~90°C
Oil temperature sensor
5 a.
Engine : Idling
b. Selector lever
position : N A/C switch
(1) ON
(2) OFF
(1) ON
(2) OFF
Triple pressure switch
Accelerator pedal
(1) Released
(2) Half depressed (1) ON
(2) OFF
Idle position switch
(1) 600~900 rpm
(2) Gradually rises
from (1)
(1) Data changes Communication with
engine - ECU
Selector lever position
(1) N→D
(2) N→R Should be no
abnormal shifting
shocks
Time lag should be
within 2 secondsMalfunction when starting
Selector lever position
: N (Carry out on a
flat and straight road) Selector lever position and
vehicle speed
a. Idling in 1st gear
(Vehicle stopped)
b. Driving at constant
speed of 20 km/h in 1st
gear (2) 1st, (4) 3rd, (3)
2nd, (5) 4th
Shift condition
(2) 0%, (4) 100%, (3)
100%, (5) 100% Low and reverse solenoid
valve
(2) 0%, (4) 0%, (3)
0% Underdrive solenoid valve
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
The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power
in order to prevent evaporator freezing by excessive cooling.
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.