Accelerator control system NISSAN TIIDA 2007 Service Repair Manual

TM-160
< SYMPTOM DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
SYSTEM SYMPTOM
2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position.
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 5
NG >> Check PNP switch circuit. Refer to XX-XX, "*****"
(type 1) or XX-XX, "*****" (type 2).
5.CHECK A/T POSITION
Check A/T position. Refer to TM-204, "
Checking of A/T Position".
OK or NG
OK >> GO TO 6.
NG >> Adjust A/T position. Refer to TM-204, "
Adjustment of A/T Position".
6.CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to XX-XX,
"*****" (type 1) or XX-XX, "*****" (type 2) and XX-XX, "*****" (type 1) or XX-XX, "*****" (type 2).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR
circuits.
7.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-297, "
Description" (type 1) or EC-583, "Description"
(type 2).
OK or NG
OK >> GO TO 8.
NG >> Repair or replace accelerator pedal position sensor.
8.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to TM-213, "
Component".
2. Check A/T fluid condition. Refer to TM-171, "
Checking A/T Fluid".
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to TM-191, "
Control Valve Assembly and Accumulators".
Selector lever positionTe r m i n a l
36 35 34 27 26
“P”, “N” B0000
“R” 0B000
“D” 0 0 B 0 0
“2” 000B0
“1” 0000B
SCIA7162E

TM-162
< SYMPTOM DIAGNOSIS >[TYPE 1 (4AT: RE4F03B)]
SYSTEM SYMPTOM
 Closed throttle position signal and wide open throttle position sig-
nal
ECM judges throttle opening based on a signal from accelerator
pedal position sensor, and sends the signal via CAN communica-
tion to the TCM.
DIAGNOSTIC PROCEDURE
NOTE:
The diagnostic procedure includes inspection for the PNP stitch, overdrive control switch, closed throttle posi-
tion signal and wide open throttle position signal circuit. Refer to TM-115, "
Component Inspection".
SCIA7143E

A/T CONTROL SYSTEM
TM-337
< FUNCTION DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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TCM FunctionINFOID:0000000001714311
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

TM-338
< FUNCTION DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
A/T CONTROL SYSTEM
CONTROL SYSTEM DIAGRAM
CAN CommunicationINFOID:0000000001714312
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:0000000001714313
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

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, "*****"