sensor NISSAN TEANA 2003 Service Manual

TRANSAXLE ASSEMBLY
CVT-195
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CVT

14. Remove crankshaft position sensor (POS) (1) from engine
assembly. Refer to EM-145, "
Removal and Installation" .
CAUTION:

Do not subject it to impact by dropping or hitting it.

Do not disassemble.

Do not allow metal filings, etc., to get on the sensor's
front edge magnetic area.

Do not place in an area affected by magnetism.
15. Remove starter motor. Refer to SC-18, "
Removal and Installa-
tion" .
16. Remove CVT fluid cooler valve assembly (1). (With CVT fluid
cooler tube assembly and heater hose). Refer to CVT-189, "
CVT
Fluid Cooler Removal and Installation" .
(A): Bolt (4)
(B): Hose clamp (3)
17. Install slinger to transaxle assembly.
18. Remove LH engine mounting bracket and LH engine mounting
insulator.
19. Remove transaxle assembly fixing bolts with power tool.
20. Remove transaxle assembly from engine assembly with a hoist.
CAUTION:
Secure torque converter to prevent it from dropping.
21. Remove air breather hose. Refer to CVT-186, "
Removal and
Installation" .
22. Remove CVT fluid cooler hoses.
23. Remove fluid cooler tube.
SCIA6759E
SCIA6880E
SCIA4355E
SCIA1868E

TRANSAXLE ASSEMBLY
CVT-197
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Install transaxle assembly to engine assembly with a hoist.

When installing fluid cooler tube to transaxle assembly, assem-
ble the part with the tube aligned with the rib.

When installing transaxle to the engine, attach the fixing bolts in
accordance with the following standard.

Align the positions of tightening nuts for drive plate with those of
the torque converter, and temporarily tighten the nuts. Then,
tighten the nuts with the specified torque.
CAUTION:

When turning crankshaft, turn it clockwise as viewed
from the front of the engine.

When tightening the tightening nuts for the torque con-
verter after fixing the crankshaft pulley bolts, be sure to
confirm the tightening torque of the crankshaft pulley
mounting bolts. Refer to EM-181, "
INSTALLATION" .

After converter is installed to drive plate, rotate crankshaft several turns and check to be sure
that transaxle rotates freely without binding.

Install crankshaft position sensor (POS). Refer to EM-145, "Removal and Installation" .

After completing installation, check for fluid leakage, fluid level, and the positions of CVT. Refer to CVT-13,
"Checking CVT Fluid" , CVT-178, "Adjustment of CVT Position" , CVT-179, "Checking of CVT Position" .

When replacing the CVT assembly, erase EEP ROM in TCM. Refer to CVT-9, "Precautions for TCM and
CVT Assembly Replacement" .
SCIA1868E
SCIA2285E
Bolt No. 1 2 3 4
Number of bolts 1 2 2 4
Bolt length
“ ”mm (in) 52 (2.05) 36 (1.42) 105 (4.13) 35 (1.38)
Tightening torque
N·m (kg-m, ft-lb)75 (7.7, 55) 47 (4.8, 35)
SCIA6882E
: 51 N·m (5.2 kg-m, 38 ft-lb)
SCIA1861E

SERVICE DATA AND SPECIFICATIONS (SDS)
CVT-199
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CVT Fluid Temperature SensorBCS001N6
Primary Speed SensorBCS001N7
Secondary Speed SensorBCS001N8
Removal and InstallationBCS001N9
Item name Condition CONSULT-II “DATA MONITOR” (Approx.) Resistance (Approx.)
ATF TEMP SEN20°C (68°F) 2.0 V 6.5 kΩ
80°C (176°F) 1.0 V 0.9 kΩ
Name Condition Data (Approx.)
Primary speed sensor When driving [“M1” position, 20 km/h (12 MPH)]. 700 Hz
Name Condition Data (Approx.)
Secondary speed sensor When driving [“D” position, 20 km/h (12 MPH)]. 400 Hz
Distance between end of converter housing and torque converter 14.0 mm (0.55 in) or more

DI-1
DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
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SECTION DI
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DRIVER INFORMATION SYSTEM
PRECAUTION ............................................................ 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
COMBINATION METERS ........................................... 4
System Description .................................................. 4
UNIFIED METER CONTROL UNIT ...................... 4
UNIFIED METER AND A/C AMP. ......................... 4
FAIL-SAFE ............................................................ 5
HOW TO CHANGE THE DISPLAY FOR ODO/
TRIP METER ........................................................ 6
POWER SUPPLY AND GROUND CIRCUIT ........ 6
SPEEDOMETER ................................................... 7
TACHOMETER ..................................................... 7
LOW WATER TEMPERATURE INDICATOR
LAMP, HIGH WATER TEMPERATURE WARN-
ING LAMP ............................................................. 7
FUEL GAUGE ....................................................... 7
Component Parts and Harness Connector Location ..... 7
Arrangement of Combination Meter ......................... 8
Internal Circuit .......................................................... 9
Wiring Diagram — METER — ................................ 10
Terminals and Reference Value for Combination
Meter ...................................................................... 12
Terminals and Reference Value for Unified Meter
and A/C Amp. ......................................................... 13
Self-Diagnosis Mode of Combination Meter ........... 13
SELF-DIAGNOSIS MODE FUNCTION ............... 13
OPERATION PROCEDURE ............................... 13
CONSULT-II Function ............................................ 14
Trouble Diagnosis .................................................. 14
HOW TO PROCEED WITH TROUBLE DIAGNO-
SIS ...................................................................... 14
PRELIMINARY CHECK ...................................... 15
SYMPTOM CHART 1 .......................................... 17
SYMPTOM CHART 2 .......................................... 17
Power Supply and Ground Circuit Inspection ........ 18
Vehicle Speed Signal Inspection ............................ 20
Engine Speed Signal Inspection ............................ 21
Engine Coolant Temperature Signal Inspection ..... 21Fuel Level Sensor Signal Inspection ...................... 22
Fuel Gauge Does Not Move to FULL position ........ 23
Electrical Components Inspection .......................... 24
CHECK FUEL LEVEL SENSOR UNIT ................ 24
Removal and Installation of Combination Meter ..... 25
REMOVAL ........................................................... 25
INSTALLATION ................................................... 25
Disassembly and Assembly of Combination Meter ... 25
DISASSEMBLY ................................................... 26
ASSEMBLY ......................................................... 26
UNIFIED METER AND A/C AMP .............................. 27
System Description ................................................. 27
INPUT/OUTPUT SIGNALS ................................. 27
Schematic ............................................................... 28
CONSULT-II Function (METER A/C AMP) ............. 29
CONSULT-II BASIC OPERATION ....................... 29
SELF-DIAGNOSTIC RESULTS ........................... 29
DATA MONITOR ................................................. 30
DTC [U1000] CAN Communication Circuit ............. 32
DTC [B2202] Meter Communication Circuit ........... 32
DTC [B2205] Vehicle Speed Circuit ........................ 34
Removal and Installation of Unified Meter and A/C
Amp. ....................................................................... 34
REMOVAL ........................................................... 34
INSTALLATION ................................................... 34
WARNING LAMPS .................................................... 35
System Description ................................................. 35
OIL PRESSURE WARNING LAMP ..................... 35
Schematic ............................................................... 36
Wiring Diagram — WARN — .................................. 37
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) ............................................................. 45
Oil Pressure Warning Lamp Does Not Turn Off (Oil
Pressure Is Normal) ................................................ 46
Electrical Component Inspection ............................ 47
OIL PRESSURE SWITCH ................................... 47
A/T INDICATOR ........................................................ 48
Wiring Diagram — AT/IND — ................................. 48
A/T Indicator Is Malfunction .................................... 50
CVT INDICATOR ....................................................... 52

COMBINATION METERS
DI-7
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SPEEDOMETER
ABS actuator and electric unit (control unit) provides a vehicle speed signal to the unified meter and A/C amp.
with CAN communication line. After unified meter and A/C amp. received the vehicle speed signal, it changes
the signal to 8 pulse signal and provides the 8 pulse signal to the combination meter for the speedometer.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
ECM provides an engine speed signal to unified meter and A/C amp. with CAN communication line. Unified
meter and A/C amp. provides an engine speed signal to combination meter for tachometer with communica-
tion line between unified meter and A/C amp. and combination meter.
LOW WATER TEMPERATURE INDICATOR LAMP, HIGH WATER TEMPERATURE WARNING
LAMP
ECM converts water temperature signal from water temperature sensor into data and transmits the data to uni-
fied meter and A/C amp. with CAN communication line. Unified meter and A/C amp. transmit the received
water temperature signal to the combination meter with communication line between unified meter and A/C
amp. and combination meter. Combination meter turns on/off low water temperature indicator lamp or high
water temperature warning lamp through the received water temperature signal.
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by a variable ground signal supplied

from unified meter and A/C amp. terminal 36

through the fuel level sensor unit and fuel pump terminals 5 and 2

to unified meter and A/C amp. terminal 28 for the fuel gauge.
Unified meter and A/C amp. provides a fuel level signal to combination meter for fuel gauge with communica-
tion line between unified meter and A/C amp. and combination meter.
Component Parts and Harness Connector LocationBKS001RY
SKIB0770E

COMBINATION METERS
DI-13
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Terminals and Reference Value for Unified Meter and A/C Amp.BKS001S3
Self-Diagnosis Mode of Combination MeterBKS001S4
SELF-DIAGNOSIS MODE FUNCTION

Odo/trip meter segment and shift indicator segment operation can be checked in self-diagnosis mode.

Meter/gauge can be checked in self-diagnosis mode.
OPERATION PROCEDURE
1. Turn the ignition switch ON, and switch the odo/trip meter to “trip A” or “trip B”.
NOTE:
If the diagnosis function is activated with the “trip A” displayed, the mileage on the “trip A” will indicate
0000.0, but the actual trip mileage will be retained. (Trip same way for “trip B”.)
2. Turn ignition switch OFF.
3. While pushing the odo/trip meter switch, turn ignition switch ON again.
4. Make sure that the trip meter displays “0000.0”.
TerminalWire
colorItemCondition
Reference value
Ignition
switchOperation or condition
1 L CAN- H — — —
9RTX communication line (To
combination meter)ON —
11 P C A N - L — — —
19 G/BRX communication line
(From combination meter)ON —
21 Y/R Battery power supply OFF — Battery voltage
22 GIgnition switch ON or
STARTON — Battery voltage
26 V/WVehicle speed signal
(8-pulse)ONSpeedometer operated
[When vehicle speed is
approx. 40 km/h (25 MPH)]NOTE:
Maximum voltage may be 12V due to
specifications (connected units).
28 G/O Fuel level sensor signal — —Refer to DI-24, "
CHECK FUEL LEVEL
SENSOR UNIT" .
29 B Ground (for power) ON — Approx. 0V
30 B Ground ON — Approx. 0V
35 V Ignition switch ACC or ON ACC — Battery voltage
36 B/W Fuel level sensor ground ON — Approx. 0V
46 W/L Ignition switch ON ON — Battery voltage
SKIA3362E
SKIA3361E
SKIA6649J

COMBINATION METERS
DI-17
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SYMPTOM CHART 1
SYMPTOM CHART 2
Symptom Check item
Indication is inaccurate for the speedometer and odo/trip meter. Refer to DI-20, "
Vehicle Speed Signal Inspection" .
Tachometer indication is inaccurate. Refer to DI-21, "
Engine Speed Signal Inspection" .
Water temperature gauge indication is inaccurate. Refer to DI-21, "
Engine Coolant Temperature Signal Inspection" .
Fuel gauge indication is inaccurate.
Refer to DI-22, "
Fuel Level Sensor Signal Inspection" .
Low-fuel warning lamp indication is inaccurate.
A/T indicator does not illuminate. Refer to DI-48, "
A/T INDICATOR" .
CVT indicator does not illuminate Refer to DI-52, "
CVT INDICATOR"
Illumination control does not operate. Replace combination meter.
Displayed item [Code] Inspection contents Check item
CAN COMM CIRC [U1000] Inspect the CAN communication.Refer to DI-32, "
DTC [U1000] CAN Communication Circuit" .
CAUTION:
Even when there is no malfunction on CAN communica-
tion system, malfunction may be misinterpreted when bat-
tery has low voltage (when maintaining 7-8V for about 2
seconds) or 10A fuse [No. 19, located in the fuse block (J/
B)] is disconnected.
METER COMM CIRC [B2202]Inspect the communication line
between the combination meter
and the unified meter and A/C
amp.Refer to DI-32, "
DTC [B2202] Meter Communication Circuit" .
VEHICLE SPEED CIRC [B2205]Inspect the vehicle speed input
signal.Refer to DI-34, "
DTC [B2205] Vehicle Speed Circuit" .
CAUTION:
Even when there is no malfunction on speed signal sys-
tem, malfunction may be misinterpreted when battery has
low voltage (when maintaining 7-8V for about 2 seconds).

DI-22
COMBINATION METERS

2. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “ENGINE” on CONSULT-II.
2. Using “COOLAN TEMP/S” on “DATA MONITOR”, print out the
CONSULT-II screen.
3. Select “METER A/C AMP” on CONSULT-II.
4. Using “W TEMP METER” on “DATA MONITOR”, compare the
value of “DATA MONITOR” with that of the “COOLAN TEMP/S”.
OK or NG
OK >> Perform ECM self-diagnosis. Refer to EC-425, "CON-
SULT-II Function (ENGINE)" . Check applicable parts,
and repair or replace corresponding parts
NG >> Replace unified meter and A/C amp. Refer to DI-34,
"Removal and Installation of Unified Meter and A/C
Amp." .
Fuel Level Sensor Signal InspectionBKS001SB
NOTE:
The following symptoms are not malfunction.

Fuel gage
–Depending on vehicle position or driving circumstance, the fuel level in the tank various, and the pointer
may fluctuate.
–If the vehicle is fueled with the ignition switch ON, the pointer will move slowly.

Low-fuel warning lamp
–Depending on vehicle position or driving circumstance, the fuel in the tank flows and the warning lamp ON
timing may change.
1. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-II.
2. Using “FUEL METER” on “DATA MONIOR”, compare the value
of “DATA MONITOR” with fuel gauge pointer of combination
meter.
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter.
2. CHECK FUEL LEVEL SENSOR UNIT
1. Turn ignition switch OFF.
2. Check fuel level sensor unit. Refer to DI-24, "
CHECK FUEL LEVEL SENSOR UNIT" .
OK or NG
OK >> GO TO 3.
NG >> Replace the corresponding parts.
SKIA4368E
Fuel gauge pointer Reference value of data monitor [lit.]
Full Approx. 66
Three quarters Approx. 53
Half Approx. 36
A quarter Approx. 18
Empty Approx. 8
PKIA2088E

COMBINATION METERS
DI-23
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3. CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT
1. Disconnect unified meter and A/C amp. connector and fuel level sensor unit and fuel pump connector.
2. Check continuity between unified meter and A/C amp. harness
connector M42 terminal 28 and fuel level sensor unit and fuel
pump harness connector B223 terminal 2.
3. Check continuity between unified meter and A/C amp. harness
connector M42 terminal 28 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK FUEL LEVEL SENSOR GROUND CIRCUIT
1. Check continuity between fuel level sensor unit and fuel pump
harness connector B223 terminal 5 and unified meter and A/C
amp. harness connector M42 terminal 36.
2. Check continuity between fuel level sensor unit and fuel pump
harness connector B223 terminal 5 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK INSTALLATION CONDITION
Check fuel level sensor unit and fuel pump installation, and check whether the float arm interferes or binds
with any of the internal components in the fuel tank.
OK or NG
OK >> Replace unified meter and A/C amp. Refer to DI-34, "Removal and Installation of Unified Meter
and A/C Amp." .
NG >> Install the fuel level sensor unit and fuel pump properly.
Fuel Gauge Does Not Move to FULL positionBKS001SG
1. QUESTION 1
Does it take a long time for the pointer to move to FULL position?
YES >> GO TO 2.
NO >> GO TO 3.
2. QUESTION 2
Was the vehicle fueled with the ignition switch ON?
YES >> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time to move
to FULL position because of the characteristic of the fuel gauge.
NO >> GO TO 3.28 – 2 : Continuity should exist.
28 – Ground : Continuity should not exist.
SKIA8723E
5 – 36 : Continuity should exist.
5 – Ground : Continuity should not exist.
SKIB0036E

DI-24
COMBINATION METERS

3. QUESTION 3
Is the vehicle parked on an incline?
YES >> Check the fuel level indication with vehicle on a level surface.
NO >> GO TO 4.
4. QUESTION 4
During driving, does the fuel gauge pointer move gradually toward EMPTY position?
YES >> Check the fuel level sensor unit and fuel pump. Refer to DI-24, "CHECK FUEL LEVEL SENSOR
UNIT" .
NO >> The float arm may interfere or bind with any of the components in the fuel tank.
Electrical Components InspectionBKS001SH
CHECK FUEL LEVEL SENSOR UNIT
For removal, refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" .
Check Fuel Level Sensor Unit and Fuel Pump
Check resistance between terminals 2 and 5.
*1 and *2: When float rod is in contact with stopper.

If the results of check are NG, check the fuel level sensor unit
and fuel pump harness.
Check Fuel Level Sensor Unit and Pump Harness
Check continuity at following terminals.

If the results of check are NG, replace fuel pump assembly. If the
results of check are OK, replace fuel level sensor unit.
Terminal Float position [mm (in)] Resistance value [Ω]
25*1 Empty 38 (1.5) Approx. 80
*2 Full 168 (6.61) Approx. 6
SKIB0776E
Terminal Continuity
2 - Signal terminal
Ye s
5 - Ground terminal
SKIB0083E