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LUBRICANT
ItemSpecified lubricant Quantity
Transmission oil Diamond ATF SP - III8.5ℓ(9.0 Us qt, 7.5Imp.qt)
SEALANT Item Specified Sealant
Rear cover
Torque converter housing
Valve body cover Three Bond - TB 1281B or LOCTITE - FMD - 546
Transmission case side cover Three Bond - TB 1389 or LOCTITE - 518
Side cover Three Bond - TB 1389 or LOCTITE - 518/587
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Automatic Transaxle System
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2007 > 2.7L V6 GASOLINE >
Electronic Control System
DESCRIPTION
The electronic control system used in the new generation auto transaxle is far superior to the previous systems. This
system is able to adopt a variable shift pattern for smooth and problem free shifting.
A solenoid valve is applied to each of the clutches and brakes and is independently controlled. Feedback control and
correction control is performed in all gears as well as utilization of mutual control system to increase shift feeling.
The torque converter damper clutch uses a partial lock up and full lock - up system. An additional control method called
the HIVEC system (neural network) is adopted to increase shift feeling.
Block Diagram (CAN)
ELECTRIC CONTROL LOCATION
The TCM(PCM) is located on the intake manifold in the engine room.
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OPERATING COMPONENTS AND FUNCTIONS
SensorFunction
Input shaft speed sensor Detect turbine speed at UD retainer
Output shaft speed sensor Detect T/F drive gear speed at T/F driven gear (4A/T)
Crank angle sensor Detect engine speed
TPS(Gasoline) Throttle opening ratio by potentiometer
Air conditioner switch A/C load by thermister
Inhibitor switch Select lever position by contact switch
Brake switch Brake pedal position
Vehicle speed sensor Detect vehicle speed by speedometer driven gear
Sport mode switch Sport mode On/Off signal
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Sport mode up- shift switchSport mode up- shift signal
Sport mode downshift switch Sport mode downshift signal
Request of torque reduction Send the request of torque reduction to ECM
ABS - ECM, Engine ECM In case of CAN communication
Sports Mode
Sports Mode Switch
Sports mode allows the manual up- shift and downshift with the accelerator pedal is depressed. The prompt response
and shift would be obtained due to the continuous shifting without cutting of driving power. The shifting time is also
decreased about 0.1sec during up- shift, 0.2sec during downshift. As the selector lever is pushed upward or downward
one time, the gear is up shifted or downshifted by one gear.
Signals of sports mode switch
Items Mode S/WUP S/WDOWN S/W
D range selection OFFOFFOFF
Sports mode selection ONOFF OFF
Sports mode up- shift selection ONONOFF
Sports mode downshift selection ONOFF ON
Controller Area Network (CAN)
Previously, for different computers in the vehicle to share the same information, each signal required a different pin
and wiring. However, with the introduction of a CAN system, only two lines are required to achieve the same function.
The information is in digital format. This method does not use an integrated ECM.
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Input signals to TCM(PCM) through ‘CAN communication’
- Engine rpm, TPS signal
- A/CON signal, Engine coolant temperature
- Quantity of intake airflow, Vehicle speed
- Shift holding signal (FTCS ON)
Output signals from TCM(PCM) through ‘CAN communication’
- Request signal for torque reduction
- ATF temperature, TCM(PCM) type, TCM(PCM) error or not
- Damper clutch ON, OFF / Gear position
TCM PIN DESCRIPITION
PIN
No.Check item
Condition Input/Output value
Measurement
Value Remarks
Type Level
A01 2nd CAN_HI -- - --
A02 2nd CAN_LO -- - --
A03 P Range
Selection P Position
OtherwiseDC
Voltage V_BAT
Max. 1.0V 12.9V
0V
A04 R Range
Selection R Position
Otherwise DC
Voltage V_BAT
Max. 1.0V 12.3V
0V
A05 N Range
Selection N Position
Otherwise DC
Voltage V_BAT
Max. 1.0V 13.2V
0V
A06 D Range
Selection D Position
Otherwise DC
Voltage V_BAT
Max. 1.0V 13.2V
0V
A07 Select Position -DC
Voltage V_BAT
Max. 1.0V 13.2V
0V
A08 Up Position -DC
Voltage V_BAT
Max. 1.0V 13.2V
0V
A09 Down Position -DC
Voltage V_BAT
Max. 1.0V 13.2V
0V
A12 N.A -- - -
A14 N.A -- - -
A19 N.A -- - -
A20 A/T Control Relay Relay On
Relay Off
DC
Voltage V_BAT
Max. 1.0V
Vpeak : Max. 70V
Resistance : 680Ω 13.8V
0V
- 0.7V
Resistance : 680Ω
W/H Open DTC Spec : P0890DTC : P0890
A27 Diagnosis "K" Communicated with
GST Pulse At transmitting
HI : V_BAT* 80%↑
LO : V_BATÎ20%↓ AT receiving
HI : V_BAT* 70%↑
LO : V_BAT*30%↓ 11.3V
0.14/ 0.32V V_BAT :
13.2V
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A31N.A -- - -
A32 A/C Pressure Analog -- - --
A34 N.A -- - -
A36 N.A -- - -
A37 N.A -- - -
A41 CAN_HI Recessive
Dominant Pulse
2.0 ~ 3.0 V
2.75 ~ 4.5 V 3.85V
2.5V
A42 CAN_LO Recessive
Dominant Pulse
2.0 ~ 3.0 V
0.5 ~ 2.25 V 2.55V
1.34V
A60 A/T PWR Source IG Off
IG On
IG. Key On
IG. Key Off Idle
Key Off from Idle
Fuse 1/2/3
Removal Condition DC
Voltage Max. 0.5 V
V_BAT
MAX. +/ - 75V (ECU GND)
MAX. +/ - 75V (ECU GND)
MAX. +/ - 75V (ECU GND)
MAX. +/ - 75V (ECU GND)
MAX. +/ - 75V (ECU GND) 0V
11.9V
+30V / - 10V or less ↑
W/H Open DTC Spec : P0888DTC : P0888
A73 Shift Position
Signal(To Cluster) Running
1 gear
2 gear
3 gear
4 gear
5 gear Pulse
Duty ↑
↑
↑
↑ HI : V_BAT
LO : Max. 1.0V
Freq.: 50±2Hz (Reference) 12.5±2%
27.5±2%
42.5±2%
57.5±2%
72.5±2% N.A
Sports
mode
B03 UD Solenoid Shifting
Pulse HI : V_BAT
LO : Max. 1.0V
Vpeak : Max. 70V 14.4V
0.35V
56.3V
W/H Open DTC Spec : P0755DTC : P0755
B05 N.A -- - -
B06 Oil temperature
sensor_ATM Idle
Analog 0.5V ~ 4.5V 4.4V
3.1V16Hz
B09 Output speed sensor 30kph
Pulse HI : Min. 4.0V
LO : Max. 1.0V 5.08V
0.34V
W/H Open DTC Spec : P0722DTC : P0722
B10 Input speed sensor Idle
Pulse HI : Min. 4.0V
LO : Max. 1.0V 5.06V
0.35V
630Hz
W/H Open DTC Spec : P0717DTC : P0717
B20 N.A -- - -
B22 LR Solenoid Shifting
Pulse HI : V_BAT
LO : Max. 1.0V
Vpeak : Max. 70V 13.9V
0.38V
56.1V
W/H Open DTC Spec : P0750DTC : P0750
B26 N.A -- - -
B27 N.A -- - -
B33 GND_Sensor Idle
DC
Voltage Max. 50 mV
13mV
WTS &
OTS_ATM
W/H Open DTC Spec : P0118/ 1115DTC : P0118/
P1115
B42 OD Solenoid Shifting
Pulse HI : V_BAT
LO : Max. 1.0V
Vpeak : Max. 70V 15.4V
0.45V
56.3V
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B42OD Solenoid Pulse
Vpeak : Max. 70V 56.3V
W/H Open DTC Spec : P0765DTC : P0765
B43 DCC solenoid Lock_Up on
PulseHI : V_BAT
LO : Max. 1.0V
Vpeak : Max. 70V 15.4V
0.45V
56.3V
W/H Open DTC Spec : P0743DTC : P0743
B44 RED Solenoid Shifting
Pulse HI : V_BAT
LO : Max. 1.0V
Vpeak : Max. 70V 15.4V
0.45V
56.3V
W/H Open DTC Spec : P0770DTC : P0770
B45 2ND Solenoid Shifting
Pulse HI : V_BAT
LO : Max. 1.0V
Vpeak : Max. 70V 15.4V
0.45V
56.3V
W/H Open DTC Spec : P0760DTC : P0760
B46 N.A -- - -
B47 N.A -- - -
B59 Variable Solenoid ( - ) Idle
Pulse HI : V_BAT
LO : Max. 1.0V
Vpeak : Max. 70V 1.8/1.2V - N
range
0.03V(DC) - D range 600Hz
W/H Open DTC Spec : P0748DTC : P0748
B65 N.A -- - -
B66 N.A -- - -
B75 Variable Solenoid (+) Idle
Pulse HI : V_BAT
LO : Max. 1.0V
Vpeak : Max. 70V 13.1V
- 0.07V
W/H Open DTC Spec : P0748DTC : P0748
B80 N.A -- - -