sensor NISSAN TEANA 2014 Service Manual

TM-220
< SYSTEM DESCRIPTION >[CVT: RE0F10E]
COMPONENT PARTS
• The primary speed sensor generates an ON-OFF pulse
signal according to the rotating body speed. TCM
judges the rotating body speed from the pulse signal.
CVT CONTROL SYSTEM : Output Speed SensorINFOID:0000000009464184
• The output speed sensor is installed to back side of transaxle.
• The output speed sensor detects final gear speed.
• The output speed sensor generates the ON-OFF pulse (short waveform) in proportion to the rotating body
speed which is “The higher the rotating body speed is, t he faster the change cycle is”. The TCM judges the
rotating speed from the changing cycle of this pulse signal.
CVT CONTROL SYSTEM : Input Speed SensorINFOID:0000000009464185
• The input speed sensor is installed to the front side of transaxle case.
• The input speed sensor detects input shaft speed.
JSDIA1824GB
JSDIA1824GB
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COMPONENT PARTSTM-221
< SYSTEM DESCRIPTION > [CVT: RE0F10E]
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• The input speed sensor generates an ON-OFF pulse signal according to the rotating body speed. TCM
judges the rotating body speed from the pulse signal.
CVT CONTROL SYSTEM : CVT Fluid Temperature SensorINFOID:0000000009464186
• The CVT fluid temperature sensor is installed to control valve.
• The CVT fluid temperature sensor detects CVT fluid temperature in oil pan.
• The fluid temperature sensor uses a thermistor, and changes the signal voltage by converting changes in the
CVT fluid temperature to a resistance value. TCM eval uates the CVT fluid temperature from the signal volt-
age value.
CVT CONTROL SYSTEM : Pr imary Pressure SensorINFOID:0000000009464187
• The primary pressure sensor is installed to control valve.
• The primary pressure sensor detects the pressure applied to the primary pulley.
JSDIA1824GB
JSDIA1825GB
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TM-222
< SYSTEM DESCRIPTION >[CVT: RE0F10E]
COMPONENT PARTS
• When pressure is applied to the ceramic device in
the primary pressure sensor, the ceramic device is
deformed, resulting in voltage change. TCM evaluates the primary pressure from its voltage change. Voltage
is increased along with pressure increase.
CVT CONTROL SYSTEM : Secondary Pressure SensorINFOID:0000000009464188
• The secondary pressure sensor is installed to control valve.
• The secondary pressure sensor detects the pressure applied to the secondary pulley.
• When pressure is applied to the metal diaphragm in the secondary pressure sensor, the metal diaphragm is
deformed, resulting in voltage change. TCM evaluates the secondary pressure from its voltage change. Volt-
age is increased along with pressure increase.
CVT CONTROL SYSTEM : Primary Pressure Solenoid ValveINFOID:0000000009464189
• The primary pressure solenoid valve is installed to control valve.
• The primary pressure solenoid valve controls the prim ary reducing valve. For information about the primary
reducing valve, refer to TM-229, "TRANSAXLE : Component Description"
.
• The primary pressure solenoid valve uses the linear solenoid valve [N/H (normal high) type].
NOTE:
• The principle of the linear solenoid valve utilizes the fa ct that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current . This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/H (normal high) produces hydraulic control when the coil is not energized.
CVT CONTROL SYSTEM : Secondary Pressure Solenoid ValveINFOID:0000000009464190
• The secondary pressure solenoid valve is installed to control valve.
• The secondary pressure solenoid valve controls t he secondary reducing valve. For information about the
secondary reducing valve, refer to TM-229, "TRANSAXLE : Component Description"
.
• The secondary pressure solenoid valve uses the linear solenoid valve [N/H (normal high) type].
JSDIA1831GB
JSDIA1831GB
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SYSTEMTM-233
< SYSTEM DESCRIPTION > [CVT: RE0F10E]
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• CVT detects the vehicle driving status from switc hes, sensors and signals, and controls the vehicle so that
the optimum shift position and shift timing may always be achieved. It also controls the vehicle to reduce
shift and lockup shock, etc.
• Receives input signals from switches and sensors.
• Sends the output signal necessary for operation of so lenoid valves, and evaluates the line pressure, shift
timing, lockup operation, engine brake performance, etc.
• If a malfunction occurs on the electric system, activa te the fail-safe mode only to drive the vehicle.
LIST OF CONTROL ITEMS AND INPUT/OUTPUT
*: If these input/output signals show errors, TCM activates the fail-safe function.
CVT CONTROL SYSTEM : Fail-safeINFOID:0000000009464205
TCM has a fail-safe mode. The mode functions so that operation can be continued even if the signal circuit of
the main electronically controlled input/output parts is damaged.
If the vehicle shows following behaviors including “poor acceleration”, a malfunction of the applicable system
is detected by TCM and the vehicle may be in a fail-s afe mode. At this time, check the DTC code and perform
inspection and repair according to the malfunction diagnosis procedures.
Fail-safe function
Control Item Shift control Line pressure
control Select control Lock-up con-
trol Fail-safe func-
tion*
Input Engine torque signal
(CAN communication) ×××××
Engine speed signal
(CAN communication) ×××××
Accelerator pedal position signal
(CAN communication) ××××
Closed throttle position signal
(CAN communication) ×× ×
Stop lamp switch signal
(CAN communication) ××××
Primary pressure sensor ×
Secondary pressure sensor ×× ×
CVT fluid temperature sensor ×××××
Primary speed sensor ×××××
Output speed sensor ×× ××
Input speed sensor ×××××
Transmission range switch ×××××
Paddle shifter
(CAN communication) ×× ×
Output Line pressure solenoid valve
××× ×
Primary pressure solenoid valve ×× ×
Torque converter clutch solenoid
valve ××
Secondary pressure solenoid valve ×× ×
Select solenoid valve ×××
Shift position indicator
(CAN communication) ×
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SYSTEMTM-237
< SYSTEM DESCRIPTION > [CVT: RE0F10E]
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REVERSE PROHIBIT CONTROL
LINE PRESSURE CONTROL
LINE PRESSURE CONTROL : System DescriptionINFOID:0000000009464207
SYSTEM DIAGRAM
DESCRIPTION
Highly accurate line pressure control (secondary pressure control) reduces friction for improvement of fuel
economy.
Normal Oil Pressure Control
Appropriate line pressure and secondary pressure suitable for driving condition are determined based on the
accelerator pedal position, engine speed, primary pulley (input) speed, secondary pulley (output) speed, vehi-
cle speed, input torque, stop lamp switch signal, transmission range switch signal, lock-up signal, power volt-
age, target shift ratio, oil temperature, oil pressure, and paddle shift (up/down) signal.
Secondary Pressure Feedback Control
In normal oil pressure control and oil pressure control in shifting, highly accurate secondary pressure is deter-
mined by detecting the secondary pressure using an oil pressure sensor and by feedback control.
SHIFT CONTROL
Control The reverse brake is controlled to avoid becoming engaged when the selector lever is set in “R” position while
driving in forward direction at more than the specified speed.
Vehicle behavior in
control If the selector lever is put at “R” position when driving with the forward gear, the gear becomes neutral, not
reverse.
Normal return condi-
tion The control returns to normal control when the vehicle is driven at low speeds. (The reverse brake becomes
engaged.)
JSDIA3716GB
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TM-242
< SYSTEM DESCRIPTION >[CVT: RE0F10E]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOST
IC (OBD) SYSTEM
DescriptionINFOID:0000000009464211
This is an on board diagnosis system which records diagnosis information related to the exhaust gases. It
detects malfunctions related to sensors and actuators. The malfunctions are indicated by means of the mal-
function indicator lamp (MIL) and are stored as DTC in the ECU memory. The diagnosis information can be
checked using a diagnosis tool (GST: Generic Scan Tool).
Function of OBDINFOID:0000000009464212
The GST is connected to the diagnosis connector on t he vehicle and communicates with the on-board control
units to perform diagnosis. The diagnosis connector is the same as for CONSULT. Refer to GI-51, "Function
and System Application".
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TM-246
< SYSTEM DESCRIPTION >[CVT: RE0F10E]
DIAGNOSIS SYSTEM (TCM)
SELF DIAGNOSTIC RESULTS
Display Item List
Refer to
TM-263, "DTC Index".
DTC at 1st trip and method to read DTC
• DTC (P0705, P0711, P0720, etc.) is specified by SAE J2012/ISO 15031-6.
• DTC and DTC at 1st trip are displayed on “Self Diagnostic results” of CONSULT.
When DTC is currently detected, “CRNT” is displayed. If “PAST” is displayed, it shows a malfunction
occurred in the past. The trip number of drive wit hout malfunction of concerned DTC can be confirmed with
“IGN counter” inside “FFD”.
• When the DTC at the 1st trip is detected, “1t” is displayed.
DTC deletion method
NOTE:
If the ignition switch is left ON after repair, turn O FF the ignition switch and wait for 10 seconds or more. Then,
turn the ignition ON again. (Engine stop)
1. Touch “TRANSMISSION” of CONSULT.
2. Touch “Self Diagnostic Result”.
3. Touch “Erase”. (DTC memorized in TCM is erased.)
IGN counter
The ignition counter is displayed in “FFD” and the number of times of satisfied “Driving condition A” is dis-
played after normal recovery of DTC. Refer to TM-243, "DIAGNOSIS DESCRIPTION : Counter System"
.
• If malfunction (DTC) is currently detected, “0” is displayed.
• After normal recovery, every time “Driving condition A” is satisfied, the display value increases from 1 → 2 →
3...38 → 39.
• When MIL turns OFF due to the malfunction and t he counter reaches 40, the DTC is erased.
NOTE:
The counter display of “40” cannot be checked.
DATA MONITOR
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
× : Application : Optional selection
Conditions Function
Work Support The settings for ECU functions can be changed.
Self Diagnostic Results The ECU self diagnostic results are displayed.
Data Monitor The ECU input/output data is displayed in real time.
CAN Diagnosis Support Monitor The result of transmit/receive diagnosis of CAN communication is displayed.
Active Test The ECU activates outputs to test components.
ECU Identification The ECU part number is displayed.
CALIB DATA The calibration data status of TCM can be checked.
Monitored item (Unit) Monitor item selection
Remarks
ECU IN-
PUT SIG-
NALS MAIN SIG-
NALS
VSP SENSOR (km/h or mph) ×Displays the vehicle speed calculated from the CVT out-
put shaft speed.
ESTM VSP SIG (km/h or mph) ו Displays the vehi
cle speed signal (ABS) received
through CAN communication.
• Models with ABS are displayed.
INPUT SPEED SENSOR (rpm) ×Displays the input speed calculated from the pulse signal
of the input speed sensor.
PRI SPEED SEN (rpm) ×Displays the primary pulley speed calculated from the
pulse signal of the primary speed sensor.
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DIAGNOSIS SYSTEM (TCM)TM-247
< SYSTEM DESCRIPTION > [CVT: RE0F10E]
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SEC REV SENSOR (rpm) ×Displays the secondary pulley speed calculated from the
pulse signal of the output speed sensor.
ENG SPEED SIG (rpm) ×Displays the engine speed received through CAN com-
munication.
SEC PRESSURE SEN (V) ×Displays the signal voltage of the secondary pressure-
sensor.
PRI PRESSURE SEN (V) ×Displays the signal voltage of the primary pressuresen-
sor.
ATF TEMP SEN (V) ×Displays the signal voltage of the CVT fluid temperature
sensor.
G SENSOR* (G) ×Displays the signal voltage of the G sensor.
VIGN SEN (V) ×Displays the battery voltage applied to TCM.
PVING VOLT (V) ×Displays the backup voltage of TCM.
VEHICLE SPEED (km/h or mph) ×Displays the vehicle speed recognized by TCM.
INPUT REV (rpm) Displays the input shaft speed of CVT recognized by
TCM.
PRI SPEED (rpm) ×Displays the primary pulley speed recognized by TCM.
SEC SPEED (rpm) Displays the secondary pulley speed recognized by
TCM.
ENG SPEED (rpm) ×Displays the engine speed recognized by TCM.
SLIP REV (rpm) ×Displays the speed difference between the input shaft
speed of CVT and the engine speed.
PULLEY GEAR RATIO ×Displays the pulley gear ratio calculated from primary
pulley speed/secondary pulley speed.
G SPEED* (G) Displays the acceleration and deceleration speed of the
vehicle calculated from vehicle speed change.
ACCEL POSI SEN 1 (deg) ××Displays the estimated throttle position received through
CAN communication.
VENG TRQ (Nm) ×Display the engine torque recognized by TCM.
PRI TRQ (Nm) Display the input shaft torque of CVT.
TRQ RTO Display the torque ratio of torque converter.
SEC PRESSURE (MPa) Displays the secondary pressure calculated from the sig-
nal voltage of the secondary pressure sensor.
PRI PRESSURE (MPa) Displays the primary pressure calculated from the signal
voltage of the primary pressure sensor.
FLUID TEMP ( °C or °F) ×Displays the CVT fluid temperature calculated from the
signal voltage of the CVT fluid temperature sensor.
DSR REV (rpm) Displays the target primary pulley speed calculated from
processing of gear shift control.
TGT PLLY GR RATIO Displays the target gear ratio of the pulley from process-
ing of gear shift control.
LU PRS (MPa) Displays the target oil pressure of the torque converter
clutch solenoid valve calculated from oil pressure pro-
cessing of gear shift control.
LINE PRS (MPa) Displays the target oil pressure of the line pressure sole-
noid valve calculated from oil pressure processing of
gear shift control.
Monitored item (Unit)
Monitor item selection
Remarks
ECU IN-
PUT SIG-
NALS MAIN SIG-
NALS
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DIAGNOSIS SYSTEM (TCM)TM-249
< SYSTEM DESCRIPTION > [CVT: RE0F10E]
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ECO MODE SW* (On/Off) ××Displays the reception status of the ECO mode switch
signal received through CAN communication.
STRDWNSW (On/Off) ×Displays the operation status of the paddle shifter (down
switch).
STRUPSW (On/Off) ×Displays the operation status of the paddle shifter (up
switch).
DOWNLVR* (On/Off) ×Displays the operation status of the selector lever (down
switch).
UPLVR* (On/Off) ×Displays the operation status of the selector lever (up
switch).
NONMMODE (On/Off) ×Displays if the selector lever position is not at the manual
shift gate.
MMODE (On/Off) ×Displays if the selector lever position is at the manual
shift gate.
TOW MODE SW* (On/Off) ×Displays the reception status of the TOW mode switch
signal received through CAN communication.
SHIFT IND SIGNAL Displays the transaxle value of shift position signal trans-
mitted via CAN communication.
CVT LAMP* (On/Off) Displays the transaxle status of the CVT warning lamp
signal transmitted through CAN communication.
SPORT MODE IND* (On/Off) Displays the transaxle status of the O/D OFF indicator
lamp signal transmitted through CAN communication.
MANU MODE SIGNAL (On/Off) Displays the transaxle status of the manual mode signal
transmitted through CAN communication.
DS RANGE SIGNAL (On/Off) Displays the shift position signal status from transmis-
sion range switch (Ds position).
ECO MODE SIGNAL* (On/Off) Displays the transaxle status of the ECO mode signal
transmitted through CAN communication.
VDC ON (On/Off) ×Displays the reception status of the VDC operation signal
received through CAN communication.
TCS ON (On/Off) ×Displays the reception status of the TCS operation signal
received through CAN communication.
ABS FAIL SIGNAL (On/Off) ×Displays the reception status of the ABS malfunction sig-
nal received through CAN communication.
ABS ON (On/Off) ×Displays the reception status of the ABS operation signal
received through CAN communication.
RANGE ×Displays the gear position recognized by TCM.
M GEAR POS ×Display the target gear of manual mode
G SEN SLOPE* (%) Displays the gradient angle calculated from the G sensor
signal voltage.
G SEN CALIBRATION* (YET/DONE) Displays the status of “G
SENSOR CALIBRATION” in
“Work Support”.
N IDLE STATUS* (On/Off) Displays idle neutral status.
ENGBRKLVL (On/Off) Displays the
setting of “ENGINE BRAKE ADJ” in “Work
Support”.
DRIVE MODE STATS* Displays the drive mode status recognized by TCM.
SNOW MODE* (On/Off) Displays whether it is the SNOW mode.
ECO MODE* (On/Off) Displays whether it is the ECO mode. Monitored item (Unit)
Monitor item selection
Remarks
ECU IN-
PUT SIG-
NALS MAIN SIG-
NALS
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TM-250
< SYSTEM DESCRIPTION >[CVT: RE0F10E]
DIAGNOSIS SYSTEM (TCM)
*: Not applicable but displayed.
WORK SUPPORT
Engine brake adjustment
Check the degradation level of the CVT fluid.
ACTIVE TEST
NORMAL MODE* (On/Off) D
isplays whether it is the NORMAL mode.
SPORT MODE* (On/Off) Displays whether it is the SPORT mode.
AIR BLDING STATE* (INCOMP/
COMP) Displays the status of “E
LECTRIC O.P. AIR BLEEDING”
in “Work Support”.
ELECTRIC OP DUTY* (%) Displays the command signal value (duty) of the electric
oil pump transmitted from TCM.
E-OP DUTY MON* (%) Monitors the status signal value (duty) transmitted from
the electric oil pump and displays the monitored value.
ELECTRIC OP RELAY* (On/Off) Displays the command status from TCM to the electric oil
pump relay.
E-OP RELAY MON* (On/Off) Monitors the command status from TCM to the oil pump
relay and displays the monitored value.
Monitored item (Unit)
Monitor item selection
Remarks
ECU IN-
PUT SIG-
NALS MAIN SIG-
NALS
Item name Description
CONFORM CVTF DETERIORTN Checks the degradation level of the CVT fluid under severe conditions.
ERASE MEMORY DATA Performs “erasing of the calibration data” and “erasing of the learned value” at the
same time.
G SENSOR CALIBRATION Compensates the G sensor.
ERASE LEARNING VALUE Erases lear ning value memorized by TCM.
ENGINE BRAKE ADJ. Although there is no malfunction on the transaxle and the CVT system, if a cus-
tomer make a complaint like “I do not feel comfortable with automatic operation of
the engine brake on downhill”, the engine brake may be cancelled with “engine
brake adjustment”.
ERASE CALIBRATION DATA Erases cali bration data memorized by TCM.
WRITE IP CHARA - REPLACEMENT AT/CVT Writes IP characteristics when transaxle assembly is replaced.
READ IP CHARA - REPLACEMENT TCM Reads IP characteristics when TCM is replaced.
WRITE IP CHARA - REPLACEMENT TCM Writes IP characteristics when TCM is replaced.
ENGINE BRAKE LEVEL
ON : Turn ON the engine brake control.
OFF : Turn OFF the engine brake control.
CVTF degradation level data
210,000 or more : Replacement of the CVT fluid is required.
Less than 210,000 : Replacement of the CVT fluid is not required.
Item name Description
CVT OIL COOLER FAN CIRCUIT Checks the operation of CVT oil cooler fan relay.
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