sensor NISSAN TEANA 2003 Service Manual

CVT-50
TROUBLE DIAGNOSIS

DATA MONITOR MODE
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
NOTE:
When malfunction is detected, CONSULT-II performs
“REAL-TIME DIAGNOSIS”. Also, any malfunction detected
while in this mode will be displayed at real time.
Display Items List
X: Standard, —: Not applicable, : Option
BCIA0031E
Monitored item (Unit)Monitor item selection
Remarks ECU
INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION
FROM
MENU
VSP SENSOR (km/h) X — Output speed sensor (secondary speed sensor)
ESTM VSP SIG (km/h) X —
PRI SPEED SEN (rpm) X —
ENG SPEED SIG (rpm) X —
SEC HYDR SEN (V) X —
PRI HYDR SEN (V) X —
ATF TEMP SEN (V) X — CVT fluid temperature sensor
VIGN SEN (V) X —
VEHICLE SPEED (km/h) — X Vehicle speed recognized by the TCM
PRI SPEED (rpm) — X Primary pulley speed
SEC SPEED (rpm) — — Secondary pulley speed
ENG SPEED (rpm) — X
SLIP REV (rpm) — XDifference between engine speed and primary
pulley speed
GEAR RATIO — X
G SPEED (G) — —
ACC PEDAL OPEN (0.0/8) X XDegree of opening for accelerator recognized by
the TCM
For fail-safe operation, the specific value used
for control is displayed
TRQ RTO — —
SEC PRESS (MPa) — X
PRI PRESS (MPa) — X
ATF TEMP — X
DSR REV (rpm) — —
DGEAR RATIO — —

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
CVT-69
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CVT

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUITPFP:31020
DescriptionBCS001HJ
The CVT fluid temperature sensor detects the CVT fluid temperature and sends a signal to the TCM.
CONSULT-II Reference ValueBCS001HK
Remarks: Specification data are reference values.
On Board Diagnosis LogicBCS001HL
Diagnostic trouble code “P0710 ATF TEMP SEN/CIRC” with CONSULT-II is detected when TCM receives an
excessively low or high voltage from the sensor.
Possible CauseBCS001HM

Harness or connectors
(Sensor circuit is open or shorted.)

CVT fluid temperature sensor
DTC Confirmation ProcedureBCS001HN
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and maintain the following conditions for at least 10
minutes (Total).
VEHICLE SPEED: 10 km/h (6 MPH) or more
ENG SPEED: 450 rpm more than
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
4. If DTC is detected, go to CVT-71, "
Diagnostic Procedure" .
Item name Condition Display value (Approx.)
ATF TEMP SEN Cold [20°C (68°F)] 2.0 V
Hot [80°C (176°F)] 1.0 V
BCIA0031E

CVT-70
DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT

Wiring Diagram — CVT — FTSBCS001HO
TCWM0533E

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
CVT-71
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CVT

TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic ProcedureBCS001HP
1. CHECK CVT FLUID TEMPERATURE SENSOR SIGNAL
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Read out the value of “ATF TEMP SEN”.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminals.
3. Turn ignition switch OFF.
4. Disconnect TCM connector.
5. Check if there is continuity between connector terminal and
ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK CVT FLUID TEMPERATURE SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminals.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
Terminal Wire color Item Condition Data (Approx.)
42 W/R Sensor ground Always 0 V
47 VCVT fluid tempera-
ture sensorWhen CVT fluid temperature is 20°C (68°F). 2.0 V
When CVT fluid temperature is 80°C (176°F). 1.0 V
Item name Condition Display value (Approx.)
ATF TEMP SENCold [20°C (68°F)] 2.0 V
Hot [80°C (176°F)] 1.0 V
SCIA2277E
Name Connector TerminalTemperature
°C (°F)Voltage
(Approx.)
CVT fluid tem-
perature sensorF107 47 - 4220 (68) 2.0 V
80 (176) 1.0 V
SCIA2027E
Name Connector TerminalTemperature
°C (°F)Resistance
(Approx.)
CVT fluid tem-
perature sensorF107 47 - 4220 (68) 6.5 kΩ
80 (176) 0.9 kΩ
SCIA2510E

CVT-72
DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT

3. CHECK CVT FLUID TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector termi-
nals.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Replace the transaxle assembly. Refer to CVT-193,
"Removal and Installation" .
4. CHECK HARNESS BETWEEN TCM AND CVT FLUID TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect the TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to CVT-69, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signal. Refer to CVT-40, "
TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Name Connector TerminalTe m p e r a -
ture °C (°F)Resistance
(Approx.)
CVT fluid
tempera-
ture sensorF49 17 - 1920 (68) 6.5 kΩ
80 (176) 0.9 kΩ
SCIA4679E
Item Connector Terminal Continuity
TCM F107 42
Ye s
CVT unit harness connector F49 19
TCM F107 47
Ye s
CVT unit harness connector F49 17
SCIA4680E

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
CVT-73
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CVT

Component InspectionBCS001HQ
CVT FLUID TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector termi-
nals.
4. If NG, replace the transaxle assembly. Refer to CVT-193,
"Removal and Installation" .
Name Connector TerminalTempera-
ture °C (°F)Resistance
(Approx.)
CVT fluid
tempera-
ture sensorF49 17 - 1920 (68) 6.5 kΩ
80 (176) 0.9 kΩ
SCIA4679E

CVT-74
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)

DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)PFP:31935
DescriptionBCS001HR
The input speed sensor (primary speed sensor) detects the primary pulley revolution speed and sends a sig-
nal to the TCM.
CONSULT-II Reference ValueBCS001HS
Remarks: Specification data are reference values.
On Board Diagnosis LogicBCS001HT
Diagnostic trouble code “P0715 INPUT SPD SEN/CIRC” with CONSULT-II is detected when TCM does not
receive the proper signal from the sensor.
Possible CauseBCS001HU

Harness or connectors
(Sensor circuit is open or shorted.)

Input speed sensor (Primary speed sensor)
DTC Confirmation ProcedureBCS001HV
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VEHICLE SPEED: 10 km/h (6 MPH) or more
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
ENG SPEED: 450 rpm or more
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. If DTC is detected, go to CVT-76, "
Diagnostic Procedure" .
Item name Condition Display value
ENG SPEED SIG Engine running Closely matches the tachometer reading
PRI SPEED SEN During driving (lock-up ON) Approximately matches the engine speed
BCIA0031E

DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
CVT-75
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CVT

Wiring Diagram — CVT — PRSCVTBCS001HW
TCWM0534E

CVT-76
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)

TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic ProcedureBCS001HX
1. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “PRI SPEED SEN”.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2. CHECK INPUT SPEED SENSOR (PRIMARY SPEED SENSOR)
1. Start engine.
2. Check voltage between TCM connector terminals.
3. Check the pulse with CONSULT-II or oscilloscope, when vehicle
cruises.
OK or NG
OK >> GO TO 6.
NG - 1 >> Battery voltage is not supplied: GO TO 3.
NG - 2 >> Battery voltage is supplied, but there is a malfunction in
the frequency: GO TO 4.
Terminal Wire color Item Condition Data (Approx.)
38 LGInput speed sensor
(Primary speed sensor)When driving [“M1” position, 20 km/h (12
MPH)].700 Hz
42 W/R Sensor ground Always 0 V
46 L/O Sensor power— 5.0 V
—0 V
Item name Condition Display value
PRI SPEED SENDuring driving (lock-up
ON)Approximately matches
the engine speed
SCIA2278E
Item Connector Terminal Data (Approx.)
TCM F107 46 - 42 5.0 V
Name Condition
Input speed sensor
(Primary speed
sensor)When running at 20 km/h (12 MPH) in “M1” position with the
closed throttle position signal “OFF”, use the CONSULT-II
pulse frequency measuring function.
CAUTION:
Connect the data link connector to the vehicle-side diag-
nosis connector.
Item Connector Terminal NameData
(Approx.)
TCM F107 38Input speed sensor (Primary
speed sensor) 700 Hz
SCIA1915E

DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
CVT-77
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CVT

3. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER
AND SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR [INPUT SPEED SEN-
SOR (PRIMARY SPEED SENSOR)]
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
5. CHECK THE TCM SHORT
Replace same type TCM, perform self-diagnosis check. Erase self-diagnostic results and then drive the vehi-
cle [10 km/h (6 MPH) or more], perform self-diagnosis check. Refer to CVT-74, "
DTC Confirmation Procedure"
.
Is the
“P0715 INPUT SPD SEN/CIRC” detected again?
YES >> Replace the transaxle assembly. Refer to CVT-193, "Removal and Installation" .
NO >> Replace TCM. Refer to CVT-9, "
Precautions for TCM and CVT Assembly Replacement" .
6. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to CVT-74, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
Item Connector Terminal Continuity
TCM F107 42
Ye s
CVT unit harness connector F49 19
TCM F107 46
Ye s
CVT unit harness connector F49 20
SCIA4681E
Item Connector Terminal Continuity
TCM F107 38
Ye s
CVT unit harness connector F49 22
SCIA4682E