2007 NISSAN TIIDA Accelerator control system

A/T CONTROL SYSTEM
TM-339
< FUNCTION DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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P*1: Spare for vehicle speed sensor·A/T (revolution sensor)
*2: Spare for accelerator pedal position signal
*3: If these input and output signals are different, the TCM triggers the fail-safe function.
*4: Used as a condition for starting self-diagnostics; if self-diagnosis are not started, it is judged that there is some kind of error.
*5: Input by CAN communications.
*6: Output by CAN communications.
Line Pressure ControlINFOID:0000000001714314
 TCM has various line pressure control characteristics to match the driving conditions.
 An ON-OFF duty signal is sent to the line pressure solenoid valve based on TCM characteristics.
 Hydraulic pressure on the clutch and brake is electronically controlled through the line pressure solenoid
valve to accommodate engine torque. This results in smooth shift operation.
NORMAL CONTROL
The characteristic of the line pressure to the throttle opening is set
for suitable clutch operation.
BACK-UP CONTROL (ENGINE BRAKE)
If the selector lever is shifted to “2” position while driving in D4 or D3,
great driving force is applied to the clutch inside the transaxle. Clutch
operating pressure (line pressure) must be increased to deal with
this driving force.
DURING SHIFT CHANGE
Out-
putShift solenoid valve A/B X (*3) X X
Line pressure solenoid X (*3) X X
Torque converter clutch solenoid
valveX(*3) XX
Overrun clutch solenoid valve X X (*3) X X
OD OFF indicator lamp
(*6)XX Control itemLine
pressure
controlVeh icl e
speed
controlShift
controlLock-up
controlEngine
brake
controlFail-safe
functionSelf-diag-
nostics
function
SAT003J
SAT004J

TM-340
< FUNCTION DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
A/T CONTROL SYSTEM
The line pressure is temporarily reduced corresponding to a change
in engine torque when shifting gears (that is, when the shift solenoid
valve is switched for clutch operation) to reduce shifting shock.
AT LOW FLUID TEMPERATURE
 A/T fluid viscosity and frictional characteristics of the clutch facing change with A/T fluid temperature. Clutch
engaging or band-contacting pressure is compensated for, according to A/T fluid temperature, to stabilize
shifting quality.
 The line pressure is reduced below 60°C (140°F) to prevent shift-
ing shock due to high viscosity of A/T fluid when temperature is
low.
 Line pressure is increased to a maximum irrespective of the throt-
tle opening when A/T fluid temperature drops to −10°C (14°F). This
pressure rise is adopted to prevent a delay in clutch and brake
operation due to extreme drop of A/T fluid viscosity at low temper-
ature.
Shift ControlINFOID:0000000001714315
The shift is regulated entirely by electronic control to accommodate vehicle speed and varying engine opera-
tions. This is accomplished by electrical signals transmitted by the revolution sensor and the ECM (accelerator
pedal position sensor). This results in improved acceleration performance and fuel economy.
CONTROL OF SHIFT SOLENOID VALVES A AND B
The TCM activates shift solenoid valves A and B according to sig-
nals from the accelerator pedal position sensor and revolution sen-
sor to select the optimum gear position on the basis of the shift
schedule memorized in the TCM.
The shift solenoid valve performs simple ON-OFF operation. When
set to “ON”, the drain circuit closes and pilot pressure is applied to
the shift valve.
RELATION BETWEEN SHIFT SOLENOID VALVES A AND B AND GEAR POSITIONS
SCIA4828E
SCIA4829E
SCIA4830E
SAT008J

TM-346
< FUNCTION DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
A/T CONTROL SYSTEM
Component Parts Location
INFOID:0000000001714320
1. OD OFF indicator lamp 2. Shift position indicator 3. Accelerator pedal position (APP)
4. Turbine revolution sensor (Power
train revolution sensor)5. PNP switch 6. Terminal body (Terminal cord assem-
bly connector)
7. Revolution sensor 8. Dropping resistor 9. TCM (LHD)
10. TCM (RHD) 11. Overdrive control switch
AWDIA0072ZZ

TM-350
< FUNCTION DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
DIAGNOSIS SYSTEM (TCM)
Diagnosis Procedure without CONSULT-III
INFOID:0000000001714330
TCM SELF-DIAGNOSTIC PROCEDURE
Description
If a malfunction occurs in electrical system, turning ignition switch ON will illuminate OD OFF indicator lamp for
2 seconds. To detect a malfunction, entering a self-diagnosis start signal retrieves information on malfunctions
from memory and indicates malfunction by blinking OD OFF indicator lamp.
Diagnostic Procedure
1.CHECK OD OFF INDICATOR LAMP
1. Park vehicle on flat surface.
SLCT LVR POSI — XSelector lever position is recognized by
the TCM.
For fail-safe operation, the specific value
used for control is displayed.
VEHICLE SPEED (km/h) — X Vehicle speed recognized by the TCM.
THROTTLE POSI (0.0/8) — XDegree of opening for accelerator recog-
nized by the TCM
For fail-safe operation, the specific value
used for control is displayed.
LINE PRES DTY (%) — X
TCC S/V DUTY (%) — X
SHIFT S/V A (ON/OFF) — X
SHIFT S/V B (ON/OFF) — X
OVERRUN/C S/V (ON/OFF) — X
SELF-D DP LMP (ON/OFF) — X
TC SLIP RATIO (0.000) — —
TC SLIP SPEED (rpm) — —Difference between engine speed and
torque converter input shaft speed
Voltage (V) — —Displays the value measured by the volt-
age probe.
Frequency (Hz) — —
The value measured by the pulse probe
is displayed. DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — —Monitored item (Unit)Monitor Item Selection
Remarks
TCM INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU

DIAGNOSIS SYSTEM (TCM)
TM-351
< FUNCTION DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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2. Move selector lever to “P” position.
3. Turn ignition switch OFF. Wait at least 5 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does OD OFF indicator lamp come on about 2 seconds?
YES >> GO TO 2.
NO >> Stop procedure. Perform XX-XX, "*****"
before proceed-
ing.
2.JUDGEMENT PROCEDURE STEP 1
1. Turn ignition switch OFF.
2. Keep pressing shift lock release button.
3. Move selector lever from “P” to “D” position.
4. Turn ignition switch ON. (Do not start engine.)
5. Keep pressing overdrive control switch while OD OFF indicator lamp is lighting up for 2 seconds. (OD
OFF indicator lamp is on.)
6. Keep pressing overdrive control switch and shift selector lever to the “2” position. (OD OFF indicator lamp
is on.)
7. Stop pressing overdrive control switch. (OD OFF indicator lamp is on.)
8. Shift selector lever to the “1” position. (OD OFF indicator lamp is on.)
9. Keep pressing overdrive control switch. (OD OFF indicator lamp is off.)
10. Depress accelerator pedal fully while pressing overdrive control switch.
>> GO TO 3.
3.CHECK SELF-DIAGNOSIS CODE
Check OD OFF indicator lamp. Refer to "Judgement of Self-diagnosis Code".
>>DIAGNOSIS END
Judgement of Self-diagnosis Code
SCIA5472E
SCIA7140E

SYSTEM SYMPTOM
TM-429
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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SYMPTOM DIAGNOSIS
SYSTEM SYMPTOM
Symptom ChartINFOID:0000000001714345
Numbers are arranged in order of inspection.
Perform inspections starting with number one and work up.
Items Symptom Condition Diagnostic item Reference page
No Lock-up Engage-
ment/TCC InoperativeTorque converter is
not locked up.ON vehicle1. Accelerator pedal position sensorEC-583
2. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
3. Engine speed signalXX-XX, "*****"
4. A/T fluid temperature sensorXX-XX, "*****"
5. Line pressure testXX-XX, "*****"
6. Torque converter clutch solenoid valveXX-XX, "*****"
7. Control valve assemblyXX-XX, "*****"
OFF vehicle 8. Torque converterXX-XX, "*****"
Torque converter
clutch piston slip.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Accelerator pedal position sensorEC-583
3. Line pressure testTM-178
4. Torque converter clutch solenoid valveXX-XX, "*****"
5. Line pressure solenoid valveXX-XX, "*****"
6. Control valve assemblyXX-XX, "*****"
OFF vehicle 7. Torque converterXX-XX, "*****"
Lock-up point is ex-
tremely high or low.ON vehicle1. Accelerator pedal position sensorEC-5832. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
3. Torque converter clutch solenoid valveXX-XX, "*****"
4. Control valve assemblyXX-XX, "*****"

TM-430
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
SYSTEM SYMPTOM
Shift ShockSharp shock in shift-
ing from “N” to “D” po-
sition.ON vehicle1. Engine idling speedXX-XX, "*****"

(Type 1), XX-XX,
"*****" (Type 2)
2. Accelerator pedal position sensorEC-297
(Type 1),
EC-583
(Type 2)
3. Line pressure testTM-178
4. A/T fluid temperature sensorTM-48
(Type 1),
XX-XX, "*****"

(Type 2)
5. Engine speed signalTM-56
(Type 1),
XX-XX, "*****"

(Type 2)
6. Line pressure solenoid valveTM-81
(Type 1),
XX-XX, "*****"

(Type 2)
7. Control valve assemblyXX-XX, "*****"
8. Accumulator N-DXX-XX, "*****"
OFF vehicle 9. Forward clutchXX-XX, "*****"
Too sharp a shock in
changing from D
1 to
D
2.ON vehicle1. Accelerator pedal position sensorEC-297
(Type 1),
EC-583
(Type 2)
2. Line pressure testTM-178
3. Accumulator servo releaseXX-XX, "*****"
4. Control valve assemblyXX-XX, "*****"
5. A/T fluid temperature sensorTM-48
(Type 1),
XX-XX, "*****"

(Type 2)
OFF vehicle 6. Brake bandXX-XX, "*****"
Too sharp a shock in
changing from D
2 to
D
3.ON vehicle1. Accelerator pedal position sensorEC-297
(Type 1),
EC-583
(Type 2)
2. Line pressure testTM-178
3. Control valve assemblyXX-XX, "*****"
OFF vehicle4. High clutchXX-XX, "*****"5. Brake bandXX-XX, "*****"
Too sharp a shock in
changing from D
3 to
D
4.ON vehicle1. Accelerator pedal position sensorEC-297
(Type 1),
EC-583
(Type 2)
2. Line pressure testTM-178
3. Control valve assemblyXX-XX, "*****"
OFF vehicle4. Brake bandXX-XX, "*****"5. Overrun clutchXX-XX, "*****"
6. Forward one-way clutchXX-XX, "*****"
Gear change shock
during deceleration by
releasing accelerator
pedal.ON vehicle1. Accelerator pedal position sensorEC-297
(Type 1),
EC-583
(Type 2)
2. Line pressure testTM-178
3. Overrun clutch solenoid valveTM-93
(Type 1),
XX-XX, "*****"

(Type 2)
4. Control valve assemblyXX-XX, "*****"
Large shock in chang-
ing from 1
2 to 11 in “1”
position.ON vehicle 1. Control valve assemblyXX-XX, "*****"OFF vehicle 2. Low & reverse brakeXX-XX, "*****"
Items Symptom Condition Diagnostic item Reference page

SYSTEM SYMPTOM
TM-431
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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Improper Shift TimingToo high a gear
change point from D
1
to D
2, from D2 to D3,
from D
3 to D4.ON vehicle1. Accelerator pedal position sensorEC-583
2. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
3. Shift solenoid valve AXX-XX, "*****"
4. Shift solenoid valve BXX-XX, "*****"
Gear change directly
from D
1 to D3 occurs.ON vehicle1. A/T fluid levelXX-XX, "*****"2. Accumulator servo releaseXX-XX, "*****"
OFF vehicle 3. Brake bandXX-XX, "*****"
Too high a change
point from D
4 to D3,
from D
3 to D 2, from
D
2 to D1.ON vehicle1. Accelerator pedal position sensorEC-583
2. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
Kickdown does not
operate when de-
pressing accelerator
pedal in D
4 within
kickdown vehicle
speed.ON vehicle1. Accelerator pedal position sensorEC-583
2. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
3. Shift solenoid valve AXX-XX, "*****"
4. Shift solenoid valve BXX-XX, "*****"
Kickdown operates or
engine overruns when
depressing accelera-
tor pedal in D
4 beyond
kickdown vehicle
speed limit.ON vehicle1. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"

and XX-XX,
"*****"
2. Accelerator pedal position sensorEC-583
3. Shift solenoid valve AXX-XX, "*****"
4. Shift solenoid valve BXX-XX, "*****"
Gear change from 22
to 2
3 in “2” position.ON vehicle1. PNP switch adjustmentXX-XX, "*****"2. Control cable adjustmentXX-XX, "*****"
Gear change from 11
to 1
2 in “1” position.ON vehicle1. PNP switch adjustmentXX-XX, "*****"2. Control cable adjustmentXX-XX, "*****"
Items Symptom Condition Diagnostic item Reference page