2003 NISSAN TEANA Temperature sensor

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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
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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
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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).

UNIFIED METER AND A/C AMP
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UNIFIED METER AND A/C AMPPFP:27760
System DescriptionBKS001SK

For the unified meter and A/C amp., the signal required for con-
trolling the combination meter are integrated in the A/C auto
amp.

Unified meter and A/C amp. controls each operation for A/C
auto amp. For information regarding A/C control, refer to AT C -
24, "AIR CONDITIONER CONTROL" .

Unified meter and A/C amp. inputs necessary information for
combination meter from each unit by CAN communication and
so on.

And unified meter and A/C amp. outputs these signals using
communication line (TX, RX) between unified meter and A/C
amp. and combination meter.

The signals required for the distance to empty (DTE) display are centralized in the unified meter and A/C
amp., converted into data, and sent to the display unit (with display unit) using CAN communication.

Other input signals are also sent to the ECM, TCM, BCM and display unit (with display unit) using CAN
communication.

The unified meter and A/C amp. correspond a CONSULT-II function (self-diagnostic results, CAN diag-
nostic support monitor and data monitor).
INPUT/OUTPUT SIGNALS
Between Unified Meter and A/C amp. and Combination Meter
SKIB0778E
Unit Input Output
Unified meter and A/C amp.

Seat belt buckle switch signal (Driver's side)

Parking brake signal

Illumination control nighttime required signal

Refuel status signal

Low-fuel warning lamp condition signal

Combination meter receive error signal

Delivery destination data signal

Combination meter specifications signal

Vehicle speed signal (8-pulse)

Engine speed signal

Engine coolant temperature signal

Fuel level sensor signal (resistance value)

Malfunction indicator lamp signal

ABS warning lamp signal

Brake warning lamp signal

KEY warning lamp signal (With Intelligent Key)

LOCK warning lamp signal (With Intelligent Key)

High-beam request signal

Turn indicator signal

VDC OFF indicator lamp signal (With VDC)

SLIP indicator lamp signal (With VDC)

ASCD CRUISE indicator lamp signal

ASCD SET indicator lamp signal

A/T position indicator signal

A/T CHECK warning lamp signal

CVT indicator lamp signal

CVT position indicator signal

Door switch signal

Oil pressure switch signal

Position lights request signal

Front fog light request signal

Rear fog light request signal

Buzzer output signal

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On Board Diagnosis Logic ................................... 193
DTC Confirmation Procedure ............................... 193
Wiring Diagram .................................................... 194
Diagnostic Procedure ........................................... 195
DTC P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................ 197
Component Description ........................................ 197
On Board Diagnosis Logic ................................... 197
DTC Confirmation Procedure ............................... 197
Diagnostic Procedure ........................................... 198
Removal and Installation ...................................... 199
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION .............................................................. 200
Description ........................................................... 200
On Board Diagnosis Logic ................................... 200
DTC Confirmation Procedure ............................... 200
Wiring Diagram .................................................... 201
Diagnostic Procedure ........................................... 202
Component Inspection ......................................... 206
Removal and Installation ...................................... 206
DTC P1124, P1126 THROTTLE CONTROL MOTOR
RELAY .................................................................... 207
Component Description ........................................ 207
CONSULT-II Reference Value in Data Monitor Mode
. 207
On Board Diagnosis Logic ................................... 207
DTC Confirmation Procedure ............................... 207
Wiring Diagram .................................................... 209
Diagnostic Procedure ........................................... 210
DTC P1128 THROTTLE CONTROL MOTOR ........ 213
Component Description ........................................ 213
On Board Diagnosis Logic ................................... 213
DTC Confirmation Procedure ............................... 213
Wiring Diagram .................................................... 214
Diagnostic Procedure ........................................... 215
Component Inspection ......................................... 216
Removal and Installation ...................................... 217
DTC P1217 ENGINE OVER TEMPERATURE ....... 218
System Description .............................................. 218
CONSULT-II Reference Value in Data Monitor Mode
. 219
On Board Diagnosis Logic ................................... 219
Overall Function Check ........................................ 220
Wiring Diagram .................................................... 222
Diagnostic Procedure ........................................... 224
Main 12 Causes of Overheating ........................... 227
Component Inspection ......................................... 228
DTC P1225 TP SENSOR ........................................ 229
Component Description ........................................ 229
On Board Diagnosis Logic ................................... 229
DTC Confirmation Procedure ............................... 229
Diagnostic Procedure ........................................... 230
Removal and Installation ...................................... 230
DTC P1226 TP SENSOR ........................................ 231
Component Description ........................................ 231
On Board Diagnosis Logic ................................... 231
DTC Confirmation Procedure ............................... 231
Diagnostic Procedure ........................................... 232
Removal and Installation ...................................... 232DTC P1229 SENSOR POWER SUPPLY ................233
On Board Diagnosis Logic ....................................233
DTC Confirmation Procedure ...............................233
Wiring Diagram .....................................................234
Diagnostic Procedure ...........................................236
DTC P1706 PNP SWITCH ......................................238
Component Description ........................................238
CONSULT-II Reference Value in Data Monitor Mode
.238
On Board Diagnosis Logic ....................................238
Overall Function Check ........................................238
Wiring Diagram .....................................................239
Diagnostic Procedure ...........................................240
DTC P1720 VSS ......................................................243
Description ............................................................243
CONSULT-II Reference Value in Data Monitor Mode
.243
On Board Diagnosis Logic ....................................243
DTC Confirmation Procedure ...............................243
Diagnostic Procedure ...........................................244
DTC P1805 BRAKE SWITCH .................................245
Description ............................................................245
CONSULT-II Reference Value in Data Monitor Mode
.245
On Board Diagnosis Logic ....................................245
DTC Confirmation Procedure ...............................245
Wiring Diagram .....................................................247
Diagnostic Procedure ...........................................248
Component Inspection ..........................................250
DTC P2122, P2123 APP SENSOR .........................251
Component Description ........................................251
CONSULT-II Reference Value in Data Monitor Mode
.251
On Board Diagnosis Logic ....................................251
DTC Confirmation Procedure ...............................252
Wiring Diagram .....................................................253
Diagnostic Procedure ...........................................254
Component Inspection ..........................................256
Removal and Installation ......................................257
DTC P2127, P2128 APP SENSOR .........................258
Component Description ........................................258
CONSULT-II Reference Value in Data Monitor Mode
.258
On Board Diagnosis Logic ....................................258
DTC Confirmation Procedure ...............................259
Wiring Diagram .....................................................260
Diagnostic Procedure ...........................................261
Component Inspection ..........................................264
Removal and Installation ......................................264
DTC P2135 TP SENSOR ........................................265
Component Description ........................................265
CONSULT-II Reference Value in Data Monitor Mode
.265
On Board Diagnosis Logic ....................................265
DTC Confirmation Procedure ...............................266
Wiring Diagram .....................................................267
Diagnostic Procedure ...........................................268
Component Inspection ..........................................271
Removal and Installation ......................................271

EC-4 DTC P2138 APP SENSOR .....................................272
Component Description ........................................272
CONSULT-II Reference Value in Data Monitor Mode
.272
On Board Diagnosis Logic ....................................272
DTC Confirmation Procedure ...............................273
Wiring Diagram .....................................................274
Diagnostic Procedure ...........................................275
Component Inspection ..........................................279
Removal and Installation ......................................279
ELECTRICAL LOAD SIGNAL ................................280
Description ............................................................280
CONSULT-II Reference Value in Data Monitor Mode
.280
Diagnostic Procedure ...........................................280
EVAP CANISTER PURGE VOLUME CONTROL
SOLENOID VALVE .................................................282
Description ............................................................282
CONSULT-II Reference Value in Data Monitor Mode
.282
Wiring Diagram .....................................................283
Diagnostic Procedure ...........................................285
Component Inspection ..........................................288
Removal and Installation ......................................288
FUEL INJECTOR ....................................................289
Component Description ........................................289
CONSULT-II Reference Value in Data Monitor Mode
.289
Wiring Diagram .....................................................290
Diagnostic Procedure ...........................................291
Component Inspection ..........................................293
Removal and Installation ......................................294
FUEL PUMP ............................................................295
Description ............................................................295
CONSULT-II Reference Value in Data Monitor Mode
.295
Wiring Diagram .....................................................296
Diagnostic Procedure ...........................................297
Component Inspection ..........................................300
Removal and Installation ......................................300
HO2S1 .....................................................................301
Component Description ........................................301
CONSULT-II Reference Value in Data Monitor Mode
.301
Wiring Diagram .....................................................302
Diagnostic Procedure ...........................................304
Component Inspection ..........................................305
Removal and Installation ......................................307
HO2S1 HEATER .....................................................308
Description ............................................................308
CONSULT-II Reference Value in Data Monitor Mode
.308
Wiring Diagram .....................................................309
Diagnostic Procedure ...........................................310
Component Inspection ..........................................312
Removal and Installation ......................................312
HO2S2 .....................................................................313
Component Description ........................................313CONSULT-II Reference Value in Data Monitor Mode
.313
Wiring Diagram .....................................................314
Diagnostic Procedure ............................................315
Component Inspection ..........................................317
Removal and Installation .......................................318
HO2S2 HEATER ......................................................319
Description ............................................................319
CONSULT-II Reference Value in Data Monitor Mode
.319
Wiring Diagram .....................................................320
Diagnostic Procedure ............................................321
Component Inspection ..........................................323
Removal and Installation .......................................323
IAT SENSOR ...........................................................324
Component Description ........................................324
Wiring Diagram .....................................................325
Diagnostic Procedure ............................................326
Component Inspection ..........................................328
Removal and Installation .......................................328
IGNITION SIGNAL ..................................................329
Component Description ........................................329
Wiring Diagram .....................................................330
Diagnostic Procedure ............................................333
Component Inspection ..........................................337
Removal and Installation .......................................338
REFRIGERANT PRESSURE SENSOR ..................339
Component Description ........................................339
Wiring Diagram .....................................................340
Diagnostic Procedure ............................................341
Removal and Installation .......................................343
MI & DATA LINK CONNECTORS ...........................344
Wiring Diagram .....................................................344
SERVICE DATA AND SPECIFICATIONS (SDS) ....346
Fuel Pressure ........................................................346
Idle Speed and Ignition Timing ..............................346
Mass Air Flow Sensor ...........................................346
Intake Air Temperature Sensor .............................346
Engine Coolant Temperature Sensor ....................346
Crankshaft Position Sensor (POS) .......................346
Camshaft Position Sensor (PHASE) .....................346
Heated Oxygen Sensor 1 Heater ..........................346
Heated Oxygen sensor 2 Heater ..........................346
Throttle Control Motor ...........................................346
Fuel Injector ..........................................................346
Fuel Pump .............................................................346
VQ
INDEX FOR DTC .....................................................347
DTC No. Index ......................................................347
Alphabetical Index .................................................349
PRECAUTIONS .......................................................351
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................351
On Board Diagnostic (OBD) System of Engine ....351
Precaution .............................................................351

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DTC P1212 TCS COMMUNICATION LINE ............ 574
Description ........................................................... 574
On Board Diagnosis Logic ................................... 574
DTC Confirmation Procedure ............................... 574
Diagnostic Procedure ........................................... 574
DTC P1217 ENGINE OVER TEMPERATURE ....... 575
System Description .............................................. 575
CONSULT-II Reference Value in Data Monitor Mode
. 576
On Board Diagnosis Logic ................................... 577
Overall Function Check ........................................ 577
Wiring Diagram .................................................... 579
Diagnostic Procedure ........................................... 581
Main 12 Causes of Overheating ........................... 584
Component Inspection ......................................... 585
DTC P1225 TP SENSOR ........................................ 586
Component Description ........................................ 586
On Board Diagnosis Logic ................................... 586
DTC Confirmation Procedure ............................... 586
Diagnostic Procedure ........................................... 587
Removal and Installation ...................................... 587
DTC P1226 TP SENSOR ........................................ 588
Component Description ........................................ 588
On Board Diagnosis Logic ................................... 588
DTC Confirmation Procedure ............................... 588
Diagnostic Procedure ........................................... 589
Removal and Installation ...................................... 589
DTC P1229 SENSOR POWER SUPPLY ................ 590
On Board Diagnosis Logic ................................... 590
DTC Confirmation Procedure ............................... 590
Wiring Diagram .................................................... 591
Diagnostic Procedure ........................................... 592
DTC P1564 ASCD STEERING SWITCH ................ 595
Component Description ........................................ 595
CONSULT-II Reference Value in Data Monitor Mode
. 595
On Board Diagnosis Logic ................................... 595
DTC Confirmation Procedure ............................... 596
Wiring Diagram .................................................... 597
Diagnostic Procedure ........................................... 598
Component Inspection ......................................... 601
DTC P1572 ASCD BRAKE SWITCH ..................... 602
Component Description ........................................ 602
CONSULT-II Reference Value in Data Monitor Mode
. 602
On Board Diagnosis Logic ................................... 602
DTC Confirmation Procedure ............................... 603
Overall Function Check ........................................ 604
Wiring Diagram .................................................... 605
Diagnostic Procedure ........................................... 606
Component Inspection ......................................... 610
DTC P1574 ASCD VEHICLE SPEED SENSOR .....611
Component Description ......................................... 611
On Board Diagnosis Logic .................................... 611
DTC Confirmation Procedure ................................ 611
Diagnostic Procedure ........................................... 612
DTC P1700 CVT CONTROL SYSTEM ................... 613
Description ........................................................... 613DTC P1706 PNP SWITCH ......................................614
Component Description ........................................614
CONSULT-II Reference Value in Data Monitor Mode
.614
On Board Diagnosis Logic ....................................614
Overall Function Check ........................................614
Wiring Diagram .....................................................615
Diagnostic Procedure ...........................................618
DTC P1715 INPUT SPEED SENSOR (PRIMARY
SPEED SENSOR) ...................................................622
Description ............................................................622
CONSULT-II Reference Value in Data Monitor Mode
.622
On Board Diagnosis Logic ....................................622
DTC Confirmation Procedure ...............................622
Diagnostic Procedure ...........................................623
DTC P1720 VSS ......................................................624
Description ............................................................624
CONSULT-II Reference Value in Data Monitor Mode
.624
On Board Diagnosis Logic ....................................624
DTC Confirmation Procedure ...............................624
Diagnostic Procedure ...........................................625
DTC P1805 BRAKE SWITCH .................................626
Description ............................................................626
CONSULT-II Reference Value in Data Monitor Mode
.626
On Board Diagnosis Logic ....................................626
DTC Confirmation Procedure ...............................626
Wiring Diagram .....................................................627
Diagnostic Procedure ...........................................628
Component Inspection ..........................................630
DTC P2122, P2123 APP SENSOR .........................631
Component Description ........................................631
CONSULT-II Reference Value in Data Monitor Mode
.631
On Board Diagnosis Logic ....................................631
DTC Confirmation Procedure ...............................632
Wiring Diagram .....................................................633
Diagnostic Procedure ...........................................634
Component Inspection ..........................................637
Removal and Installation ......................................637
DTC P2127, P2128 APP SENSOR .........................638
Component Description ........................................638
CONSULT-II Reference Value in Data Monitor Mode
.638
On Board Diagnosis Logic ....................................638
DTC Confirmation Procedure ...............................639
Wiring Diagram .....................................................640
Diagnostic Procedure ...........................................641
Component Inspection ..........................................644
Removal and Installation ......................................644
DTC P2135 TP SENSOR ........................................645
Component Description ........................................645
CONSULT-II Reference Value in Data Monitor Mode
.645
On Board Diagnosis Logic ....................................645
DTC Confirmation Procedure ...............................646
Wiring Diagram .....................................................647

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Component Inspection ......................................... 760
Removal and Installation ...................................... 761
VSS ......................................................................... 762
Description ........................................................... 762
Diagnostic Procedure ........................................... 762
MI & DATA LINK CONNECTORS .......................... 763
Wiring Diagram .................................................... 763
SERVICE DATA AND SPECIFICATIONS (SDS) .... 765
Fuel Pressure ....................................................... 765
Idle Speed and Ignition Timing ............................. 765Mass Air Flow Sensor ...........................................765
Intake Air Temperature Sensor .............................765
Engine Coolant Temperature Sensor ...................765
Heated Oxygen Sensor 1 Heater .........................765
Heated Oxygen sensor 2 Heater ..........................765
Crankshaft Position Sensor (POS) .......................765
Camshaft Position Sensor (PHASE) ....................765
Throttle Control Motor ...........................................765
Fuel Injector ..........................................................765
Fuel Pump ............................................................766