Page 4961 of 5883
![NISSAN TIIDA 2007 Service Repair Manual A/T CONTROL SYSTEM
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*1: Operates when OD OFF. (OD OFF indicator lamp is on.)
*2: Oil pressure is applied to both NISSAN TIIDA 2007 Service Repair Manual A/T CONTROL SYSTEM
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*1: Operates when OD OFF. (OD OFF indicator lamp is on.)
*2: Oil pressure is applied to both](/manual-img/5/57395/w960_57395-4960.png)
A/T CONTROL SYSTEM
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*1: Operates when OD OFF. (OD OFF indicator lamp is on.)
*2: Oil pressure is applied to both 2nd “apply” side and 3rd “release” side of band servo piston. However, brake band does not contract
because oil pressure area on the “release” side is greater than that on the “apply” side.
*3: Oil pressure is applied to 4th “apply” side on condition *2 above, and brake band contracts.
*4: A/T will not shift to 4th when OD OFF. (OD OFF indicator lamp is on.)
: Operates.
A: Operates when throttle opening is less than specification**, activating engine brake.
B: Operates during “progressive” acceleration.
C: Operates but does not affect power transmission.
D: Operates when throttle opening is less than specification**, but does not affect engine brake.
- **: Overrun clutch remains in engaged condition when throttle opening is less than 1/16.
POWER TRANSMISSION
“N” and “P” Positions
“N” position
Power from the input shaft is not transmitted to the output shaft because the clutches do not operate.
“P” position
NNEUTRAL
POSITION
D*41st *1D B B
2nd *1A BAutomatic
shift
3rd *1A *2C C B
*11 ⇔ 2 ⇔ 3
⇔ 4
4th C *3C C
21stBB
Automatic
shift
1 ⇔ 2 ⇐ 3 2ndB
3rd *2C C B
11stBB
Locks (held
stationary)
in 1st speed
1 ⇐ 2 ⇐ 3 2ndB
3rd *2C C B Shift posi-
tionR/C
5H/C
6F/C
15O/C
17Band servo
F/O.C
16L/O.C
18L&R/B
19Lock-
upRemarks
2nd
apply3rd re-
lease4th ap-
ply
Page 4962 of 5883
TM-16
< FUNCTION DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
A/T CONTROL SYSTEM
Similar to the “N” position, the clutches do not operate. The parking pawl engages with the parking gear to
mechanically hold the output shaft so that the power train is locked.
“11” Position
“D
1” and “21” Positions
SAT991I
Forward clutch
Forward one-way clutch
Overrun clutch
Low & reverse brakeAs overrun clutch engages, rear internal gear is locked by the operation of low and re-
verse brake.
This is different from that of D
1 and 21.
Engine brake Overrun clutch always engages, therefore engine brake can be obtained when deceler-
ating.
SCIA1816E
Page 4963 of 5883
![NISSAN TIIDA 2007 Service Repair Manual A/T CONTROL SYSTEM
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*: Overrun clutch remains in engaged condition when throttle opening is less than 1/16.
“D2”, NISSAN TIIDA 2007 Service Repair Manual A/T CONTROL SYSTEM
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*: Overrun clutch remains in engaged condition when throttle opening is less than 1/16.
“D2”,](/manual-img/5/57395/w960_57395-4962.png)
A/T CONTROL SYSTEM
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*: Overrun clutch remains in engaged condition when throttle opening is less than 1/16.
“D2”, “22” and “12” Positions
*: Overrun clutch remains in engaged condition when throttle opening is less than 1/16.Forward one-way clutch
Forward clutch
Low one-way clutchRear internal gear is locked to rotate counterclockwise because of the functioning of these three
clutches.
Overrun clutch
engagement conditions
(Engine brake)D
1: OD OFF (OD OFF indicator lamp is on) and throttle opening is less than specification*
2
1: Always engaged
At D
1 and 21 positions, engine brake is not activated due to free turning of low one- way clutch.
SAT377J
Forward clutch
Forward one-way
clutch
Brake bandRear sun gear drives rear planetary carrier and combined front internal gear. Front internal gear now rotates
around front sun gear accompanying front planetary carrier.
As front planetary carrier transfers the power to rear internal gear through forward clutch and forward one-
way clutch, this rotation of rear internal gear increases the speed of rear planetary carrier compared with
that of the 1st speed.
Overrun clutch
engagement conditionsD
2: OD OFF (OD OFF indicator lamp is on) and throttle opening is less than specification*
2
2 and 12: Always engaged
Page 4964 of 5883
TM-18
< FUNCTION DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
A/T CONTROL SYSTEM
“D3”, “23” and “13” Positions
*: Overrun clutch remains in engaged condition when throttle opening is less than 1/16.
SAT378J
High clutch
Forward clutch
Forward one-way
clutchInput power is transmitted to front planetary carrier through high clutch. And front planetary carrier is con-
nected to rear internal gear by operation of forward clutch and forward one-way clutch.
This rear internal gear rotation and another input (the rear sun gear) accompany rear planetary carrier to
turn at the same speed.
Overrun clutch
engagement conditionsD
3: OD OFF (OD OFF indicator lamp is on) and throttle opening is less than specification*
2
3 and 13: Always engaged
Page 4965 of 5883
A/T CONTROL SYSTEM
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< FUNCTION DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
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P “D
4” (OD) Position
SAT379J
High clutch
Brake band
Forward clutch (Does not affect power
transmission)Input power is transmitted to front carrier through high clutch.
This front carrier turns around the sun gear which is fixed by brake band and makes
front internal gear (output) turn faster.
Engine brakeAt D
4 position, there is no one-way clutch in the power transaxle line and engine brake
can be obtained when decelerating.
Page 4966 of 5883
TM-20
< FUNCTION DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
A/T CONTROL SYSTEM
“R” Position
SAT380J
Reverse clutch
Low & reverse brakeFront planetary carrier is stationary because of the operation of low and reverse brake.
Input power is transmitted to front sun gear through reverse clutch, which drives front
internal gear in the opposite direction.
Engine brakeAs there is no one-way clutch in the power transaxle line, engine brake can be obtained
when decelerating.
Page 4967 of 5883
![NISSAN TIIDA 2007 Service Repair Manual A/T CONTROL SYSTEM
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TCM FunctionINFOID:0000000001694422
The function of the TCM is to:
Receive input signals sent f NISSAN TIIDA 2007 Service Repair Manual A/T CONTROL SYSTEM
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TCM FunctionINFOID:0000000001694422
The function of the TCM is to:
Receive input signals sent f](/manual-img/5/57395/w960_57395-4966.png)
A/T CONTROL SYSTEM
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TCM FunctionINFOID:0000000001694422
The function of the TCM is to:
Receive input signals sent from various switches and sensors.
Determine required line pressure, shifting point, lock-up operation, and engine brake operation.
Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The automatic transaxle senses vehicle operating conditions through various sensors or signals. It always
controls the optimum shift position and reduces shifting and lock-up shocks.
SAT381J
SWITCHES & SENSORS
⇒TCM
⇒ACTUATORS
PNP switch
Accelerator pedal position signal
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Revolution sensor
Turbine revolution sensor (Power
train revolution sensor)
Vehicle speed sensor
Overdrive control switch signal
Stop lamp switch signalShift control
Line pressure control
Lock-up control
Overrun clutch control
Fail-safe control
Self-diagnosis
CONSULT-III communication
line controlShift solenoid valve A
Shift solenoid valve B
Overrun clutch solenoid valve
Torque converter clutch solenoid
valve
Line pressure solenoid valve
OD OFF indicator lamp
Page 4968 of 5883
![NISSAN TIIDA 2007 Service Repair Manual TM-22
< FUNCTION DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
A/T CONTROL SYSTEM
CONTROL SYSTEM DIAGRAM
CAN CommunicationINFOID:0000000001694423
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial comm NISSAN TIIDA 2007 Service Repair Manual TM-22
< FUNCTION DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
A/T CONTROL SYSTEM
CONTROL SYSTEM DIAGRAM
CAN CommunicationINFOID:0000000001694423
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial comm](/manual-img/5/57395/w960_57395-4967.png)
TM-22
< FUNCTION DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
A/T CONTROL SYSTEM
CONTROL SYSTEM DIAGRAM
CAN CommunicationINFOID:0000000001694423
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only. For details, refer to LAN-13,
"System Description".
Input/Output Signal of TCMINFOID:0000000001694424
SCIA7112E
Control itemLine
pressure
controlVehicle
speed
controlShift
controlLock-up
controlEngine
brake
controlFail-safe
functionSelf-diag-
nostics
function
InputAccelerator pedal position signal
(*5)XXXXX(*3) XX
Vehicle speed sensor·A/T
(Revolution sensor)XXXX (*3) XX
Vehicle speed sensor·MTR (*1) X (*1) X (*1) X (*1) X X
Closed throttle position signal
(*5)(*2) X (*2) X X (*4) X
Wide open throttle position signal
(*5)(*2) X (*2) X (*4) X
Turbine revolution sensor (Power
train revolution sensor)XXXXX
Engine speed signal X X
PNP switch XXXXX(*3) X(*4) X
Stop lamp switch signal
(*5)XXX(*4) X
A/T fluid temperature sensors X X X X
Overdrive control switch signal
(*5)XXX(*4) X
TCM power supply voltage signal XX