2014 NISSAN TEANA power steering

DAS-5
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U1000 CAN COMM CI
RCUIT ...........................192
Description .......................................................... ..192
DTC Logic .............................................................192
Diagnosis Procedure .............................................192
U1010 CONTROL UNIT (CAN) ........................193
Description .......................................................... ..193
DTC Logic .............................................................193
Diagnosis Procedure .............................................193
U111A REAR CAMERA IMAGE SIGNAL CIR-
CUIT ................................................................ ..
194
DTC Logic ........................................................... ..194
Diagnosis Procedure .............................................194
U1232 STEERING ANGLE SENSOR ..............196
DTC Logic ........................................................... ..196
Diagnosis Procedure .............................................196
U1305 CAMERA IMAGE CALIB ......................197
DTC Logic ........................................................... ..197
Diagnosis Procedure .............................................197
U1308 CAMERA CONFIG ................................198
DTC Logic ........................................................... ..198
Diagnosis Procedure .............................................198
U1309 PUMP UNIT CURRENT ........................199
DTC Logic ........................................................... ..199
Diagnosis Procedure .............................................199
U130B REAR CAMERA COMM ERROR ........202
DTC Logic ........................................................... ..202
Diagnosis Procedure .............................................202
U1310 PUMP UNIT CIRCUIT ...........................203
DTC Logic ........................................................... ..203
Diagnosis Procedure .............................................203
POWER SUPPLY AND GROUND CIRCUIT ....206
Diagnosis Procedure ........................................... ..206
WARNING SYSTEMS SWITCH CIRCUIT .......207
Component Function Check ................................ ..207
Diagnosis Procedure .............................................207
Component Inspection ..........................................208
WARNING SYSTEMS ON INDICATOR CIR-
CUIT ................................................................ ..
209
Component Function Check ................................ ..209
Diagnosis Procedure .............................................209
Component Inspection ..........................................210
WARNING BUZZER CIRCUIT .........................211
Component Function Check ................................ ..211
Diagnosis Procedure .............................................211
SYMPTOM DIAGNOSIS ............................212
BSW SYSTEM SYMPTOMS .......................... ..212
Symptom Table ................................................... ..212
SWITCH DOES NOT TURN ON / SWITCH
DOES NOT TURN OFF ...................................
213
Description ........................................................... ..213
Diagnosis Procedure .............................................213
BSW SYSTEM SETTINGS CANNOT BE
TURNED ON/OFF IN VEHICLE INFORMA-
TION DISPLAY ................................................
215
Description ........................................................... ..215
Diagnosis Procedure .............................................215
NORMAL OPERATING CONDITION .............216
Description .............................................................216
REMOVAL AND INSTALLATION .............217
WARNING SYSTEMS SWITCH ......................217
Removal and Installation ..................................... ..217
BSW INDICATOR ...........................................218
Exploded View .......................................................218
Removal and Installation .......................................218
REAR VIEW CAMERA ....................................219
Exploded View .......................................................219
Removal and Installation .......................................219
REAR VIEW CAMERA WASHER CONTROL
UNIT ................................................................
220
Exploded View ..................................................... ..220
Removal and Installation .......................................220
REAR VIEW CAMERA AIR PUMP MOTOR ...221
Exploded View .......................................................221
Removal and Installation .......................................221
MOD
PRECAUTION ...... ......................................
222
PRECAUTIONS ...............................................222
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
222
Precaution for Work ...............................................222
Precautions For Harness Repair ...........................222
PREPARATION .........................................224
PREPARATION ...............................................224
Special Service Tool ............................................ ..224
SYSTEM DESCRIPTION ...........................225
COMPONENT PARTS ....................................225
Component Parts Location .................................. ..225
Component Description .........................................226
SYSTEM ..........................................................228
System Description .............................................. ..228
OPERATION ...................................................231
System Display and Warning ................................231
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DAS-6
HANDLING PRECAUTION ..............................232
Precautions for Moving Objects Detection .......... ..232
DIAGNOSIS SYSTEM (ITS CONTROL UNIT) .233
CONSULT Function (AVM) ................................. ..233
ECU DIAGNOSIS INFORMATION .............236
ITS CONTROL UNIT ....................................... .236
Reference Value .................................................. ..236
Fail-safe .................................................................238
DTC Inspection Priority Chart ................................238
DTC Index .............................................................239
WIRING DIAGRAM ....................................241
DRIVER ASSISTANCE SYSTEMS ................ .241
Wiring Diagram .................................................... ..241
BASIC INSPECTION ..................................250
DIAGNOSIS AND REPAIR WORK FLOW ..... .250
Work Flow ............................................................ ..250
Diagnostic Work Sheet ..........................................251
PRE-INSPECTION FOR DIAGNOSIS .............253
Inspection Procedure ........................................... ..253
ACTION TEST .................................................254
Description ........................................................... ..254
Inspection Procedure .............................................254
ADDITIONAL SERVICE WHEN REPLACING
REAR VIEW CAMERA ................................... .
255
Description ........................................................... ..255
Work Procedure .....................................................255
REAR VIEW CAMERA CALIBRATION ..........256
Description ........................................................... ..256
Work Procedure (Preparation) ...............................256
Work Procedure (Target Setting) ...........................257
Work Procedure (Rear View Camera Calibration) ..258
DTC/CIRCUIT DIAGNOSIS ...................... ..260
C1A03 VEHICLE SPEED SENSOR ............... .260
DTC Logic ............................................................ ..260
Diagnosis Procedure .............................................260
C1A04 ABS/TCS/VDC SYSTEM .....................261
DTC Logic ............................................................ ..261
Diagnosis Procedure .............................................261
C1A39 STEERING ANGLE SENSOR .............262
DTC Logic ............................................................ ..262
Diagnosis Procedure .............................................262
U0122 VDC P-RUN DIAG ................................263
DTC Logic ............................................................ ..263
Diagnosis Procedure .............................................263
U0416 VDC CHECKSUM DIAG ......................264
DTC Logic ............................................................ .264
Diagnosis Procedure .............................................264
U0428 STEERING ANGLE SENSOR ..............265
DTC Logic ............................................................ .265
Diagnosis Procedure .............................................265
U1000 CAN COMM CIRCUIT ...........................266
Description ........................................................... .266
DTC Logic .............................................................266
Diagnosis Procedure .............................................266
U1010 CONTROL UNIT (CAN) ........................267
Description ........................................................... .267
DTC Logic .............................................................267
Diagnosis Procedure .............................................267
U111A REAR CAMERA IMAGE SIGNAL CIR-
CUIT ................................................................ ..
268
DTC Logic ............................................................ .268
Diagnosis Procedure .............................................268
U1232 STEERING ANGLE SENSOR ..............270
DTC Logic ............................................................ .270
Diagnosis Procedure .............................................270
U1305 CAMERA IMAGE CALIB ......................271
DTC Logic ............................................................ .271
Diagnosis Procedure .............................................271
U1308 CAMERA CONFIG ................................272
DTC Logic ............................................................ .272
Diagnosis Procedure .............................................272
U1309 PUMP UNIT CURRENT ........................273
DTC Logic ............................................................ .273
Diagnosis Procedure .............................................273
U130B REAR CAMERA COMM ERROR .........276
DTC Logic ............................................................ .276
Diagnosis Procedure .............................................276
U1310 PUMP UNIT CIRCUIT ...........................277
DTC Logic ............................................................ .277
Diagnosis Procedure .............................................277
POWER SUPPLY AND GROUND CIRCUIT ....280
Diagnosis Procedure ............................................ .280
WARNING SYSTEMS SWITCH CIRCUIT ........281
Component Function Check ................................ .281
Diagnosis Procedure .............................................281
Component Inspection ..........................................282
WARNING SYSTEMS ON INDICATOR CIR-
CUIT ................................................................ ..
283
Component Function Check ................................ .283
Diagnosis Procedure .............................................283
Component Inspection ..........................................284
WARNING BUZZER CIRCUIT .........................285
Component Function Check ................................ .285
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-1
ENGINE
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SECTION EC
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CONTENTS
ENGINE CONTROL SYSTEM
QR25DE
PRECAUTION ................ ..............................
15
PRECAUTIONS .............................................. ....15
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
15
Precaution for Procedure without Cowl Top Cover ....15
On Board Diagnostic (OBD) System of Engine
and CVT .............................................................. ....
15
General Precautions ...............................................16
PREPARATION ...........................................19
PREPARATION .............................................. ....19
Special Service Tools .......................................... ....19
Commercial Service Tools ......................................19
SYSTEM DESCRIPTION .............................21
COMPONENT PARTS ................................... ....21
Component Parts Location ................................ ....21
ECM ........................................................................25
Accelerator Pedal Position Sensor ...................... ....25
Electric Throttle Control Actuator ........................ ....25
Ignition Coil With Power Transistor .........................26
Fuel Injector ........................................................ ....26
Fuel Level Sensor Unit and Fuel Pump .............. ....26
Fuel Tank Temperature Sensor .......................... ....27
Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor) ........................................................ ....
27
Manifold Absolute Pressure Sensor ........................28
Engine Coolant Temperature Sensor .................. ....28
Crankshaft Position Sensor (POS) ..........................29
Camshaft Position Sens or (PHASE) .......................29
Intake Valve Timing Cont rol Solenoid Valve ...........30
Intake Valve Timing Intermediate Lock Control
Solenoid Valve .................................................... ....
30
Exhaust Valve Timing Control Position Sensor .......30
Exhaust Valve Timing Control Solenoid Valve ........31
Intake Manifold Runner Control Valve ................. ....31
Intake Manifold Tuning Valve ..................................31
Air Fuel Ratio (A/F) Sensor 1 ..................................32
Heated Oxygen Sensor 2 ........................................32
Knock Sensor ..........................................................33
Engine Oil Pressure Sensor ....................................33
Engine Oil Temperature Sensor .......................... ....33
Cooling Fan .............................................................34
EVAP Canister .........................................................34
EVAP Canister Purge Volu me Control Solenoid
Valve .................................................................... ....
34
EVAP Canister Vent Control Valve ..........................35
EVAP Control System Pres sure Sensor ..................35
Battery Current Sensor (With Battery Tempera-
ture Sensor) ......................................................... ....
35
Malfunction Indicator lamp (MIL) .............................36
Oil Pressure Warning Lamp ....................................36
Refrigerant Pressure Sensor ............................... ....36
Stop Lamp Switch & Brake Pedal Position Switch ....36
ASCD Steering Switch .............................................37
Information Display ..................................................37
STRUCTURE AND OPERATION .....................38
Positive Crankcase Ventilation ................................38
On Board Refueling Vapor Recovery (ORVR) ........39
SYSTEM ............................................................40
ENGINE CONTROL SYSTEM ........................ ...........40
ENGINE CONTROL SYSTEM : System Descrip-
tion ....................................................................... ....
40
ENGINE CONTROL SYSTEM : Fail Safe ..............41
MULTIPORT FUEL INJECTION SYSTEM ................43
MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description (with auto matic air conditioner) ......
43
MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description (with manual air conditioner) .........
46
ELECTRIC IGNITION SYSTEM .................................48
ELECTRIC IGNITION SYSTEM : System De-
scription ............................................................... ....
48
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-8
POSITIVE CRANKCASE VENTILATION ........539
Inspection ............................................................ ..539
REMOVAL AND INSTALLATION ..............540
ECM ................................................................ .540
Removal and Installation ..................................... ..540
SERVICE DATA AND SPECIFICATIONS
(SDS) .............. ............................................
541
SERVICE DATA AND SPECIFICATIONS
(SDS) ............................................................... .
541
Idle Speed ........................................................... ..541
Ignition Timing .......................................................541
Calculated Load Value ..........................................541
Mass Air Flow Sensor ............................................541
VQ35DE
PRECAUTION .............. ..............................
542
PRECAUTIONS .............................................. .542
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ..
542
On Board Diagnostic (OBD) System of Engine
and CVT .............................................................. ..
542
General Precautions ..............................................543
PREPARATION ..........................................546
PREPARATION .............................................. .546
Special Service Tools .......................................... ..546
Commercial Service Tools .....................................546
SYSTEM DESCRIPTION ...........................548
COMPONENT PARTS .................................... .548
ENGINE CONTROL SYSTEM .................................548
ENGINE CONTROL SYSTEM : Component Parts
Location ............................................................... ..
548
Accelerator Pedal Position Sensor ........................552
Air Fuel Ratio (A/F) Sensor 1 ................................552
ASCD Steering Switch ...........................................553
Battery Current Sensor (With Battery Tempera-
ture Sensor) ......................................................... ..
553
Camshaft Position Sensor (PHASE) .....................554
Cooling Fan ......................................................... ..554
Crankshaft Position Sensor (POS) ........................554
ECM .......................................................................555
Electric Throttle Control Actuator ......................... ..555
Electronic Controlled Engine Mount .................... ..556
Engine Coolant Temperature Sensor ....................556
Engine Oil Pressure Sensor ................................ ..557
Engine Oil Temperature Sensor ............................557
EVAP Canister ..................................... ..................557
EVAP Canister Purge Volu me Control Solenoid
Valve .................................................................... ..
557
EVAP Canister Vent Control Valve ........................558
EVAP Control System Pressu re Sensor ................558
Fuel Injector ......................................................... .558
Fuel Level Sensor Unit and Fuel Pump (With Fuel
Tank Temperature Sensor) .................................. .
558
Heated Oxygen Sensor 2 ......................................559
Ignition Coil (With Power Transistor) ....................560
Intake Valve Timing Control Solenoid Valve .........560
Knock Sensor ....................................................... .560
Malfunction Indicator lamp (MIL) ...........................560
Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor) ......................................................... .
560
Oil Pressure Warning Lamp ..................................561
Power Valve Actuator 1 and 2 ..............................561
Refrigerant Pressure Sensor ................................562
Stop Lamp Switch & Brak e Pedal Position Switch .562
VIAS Control Solenoid Valve 1 and 2 .................. .562
STRUCTURE AND OPERATION .....................563
Positive Crankcase Ventilation (PCV) ...................563
On Board Refueling Vapor Recovery (ORVR) ..... .564
SYSTEM ...........................................................565
ENGINE CONTROL SYSTEM ................................ .565
ENGINE CONTROL SYSTEM : System Descrip-
tion ....................................................................... .
565
ENGINE CONTROL SYSTEM : Fail-safe .............566
MULTIPORT FUEL INJECTION SYSTEM ............. .568
MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description .................................................... .
568
ELECTRIC IGNITION SYSTEM ............................. .571
ELECTRIC IGNITION SYSTEM : System De-
scription ................................................................ .
571
AIR CONDITIONING CUT CONTROL ................... .572
AIR CONDITIONING CUT CONTROL : System
Description ........................................................... .
573
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .574
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Description ..................................... .
574
COOLING FAN CONTROL .................................... .575
COOLING FAN CONTROL : System Description .575
ELECTRONIC CONTROLLED ENGINE MOUNT .. .577
ELECTRONIC CONTROLLED ENGINE MOUNT
: System Description ............................................ .
577
EVAPORATIVE EMISSION SYSTEM .....................579
EVAPORATIVE EMISSION SYSTEM : System
Description ........................................................... .
580
THROTTLE CONTROL ...........................................581
THROTTLE CONTROL : Syst em Description ......581
INTAKE VALVE TIMING CONTROL ..................... .582
INTAKE VALVE TIMING CONTROL : System De-
scription ................................................................ .
583
ENGINE PROTECTION CONTROL AT LOW EN-
GINE OIL PRESSURE ........................................... .
583
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-12
Diagnosis Procedure .............................................865
P0462, P0463 FUEL LEVEL SENSOR ...........866
DTC Logic ............................................................ ..866
Diagnosis Procedure .............................................866
P0500 VSS .......................................................867
Description ........................................................... ..867
DTC Logic ..............................................................867
Diagnosis Procedure .............................................867
P0506 ISC SYSTEM ........................................869
Description ........................................................... ..869
DTC Logic ..............................................................869
Diagnosis Procedure .............................................869
P0507 ISC SYSTEM ........................................871
Description ........................................................... ..871
DTC Logic ..............................................................871
Diagnosis Procedure .............................................871
P050A, P050E COLD START CONTROL .......873
Description ........................................................... ..873
DTC Logic ..............................................................873
Diagnosis Procedure .............................................874
P0520 EOP SENSOR ......................................875
DTC Logic ............................................................ ..875
Diagnosis Procedure .............................................875
Component Inspection ...........................................877
P0524 ENGINE OIL PRESSURE ....................878
DTC Logic ............................................................ ..878
Diagnosis Procedure .............................................879
Component Inspection ...........................................880
P0603 ECM POWER SUPPLY ........................881
DTC Logic ............................................................ ..881
Diagnosis Procedure .............................................881
P0605 ECM ......................................................883
DTC Logic ............................................................ ..883
Diagnosis Procedure .............................................883
P0607 ECM ......................................................884
DTC Logic ............................................................ ..884
Diagnosis Procedure .............................................884
P0643 SENSOR POWER SUPPLY .................885
Description ........................................................... ..885
DTC Logic ..............................................................885
Diagnosis Procedure .............................................885
P0850 PNP SWITCH .......................................887
Description ........................................................... ..887
DTC Logic ..............................................................887
Component Function Check ..................................888
Diagnosis Procedure .............................................888
P1148, P1168 CLOSED LOOP CONTROL .....890
DTC Logic ............................................................ ..890
P1212 TCS COMMUNICATION LINE ..............891
Description ........................................................... .891
DTC Logic .............................................................891
Diagnosis Procedure .............................................891
P1217 ENGINE OVER TEMPERATURE .........892
DTC Logic ............................................................ .892
Component Function Check .................................892
Diagnosis Procedure .............................................893
P1225 TP SENSOR ..........................................895
DTC Logic ............................................................ .895
Diagnosis Procedure .............................................895
P1226 TP SENSOR ..........................................896
DTC Logic ............................................................ .896
Diagnosis Procedure .............................................896
P1550 BATTERY CURRENT SENSOR ...........897
DTC Logic ............................................................ .897
Diagnosis Procedure .............................................897
Component Inspection ..........................................898
P1551, P1552 BATTERY CURRENT SEN-
SOR ................................................................ ..
899
DTC Logic ............................................................ .899
Diagnosis Procedure .............................................899
Component Inspection ..........................................900
P1553 BATTERY CURRENT SENSOR ...........901
DTC Logic ............................................................ .901
Diagnosis Procedure .............................................901
Component Inspection ..........................................902
P1554 BATTERY CURRENT SENSOR ...........903
DTC Logic ............................................................ .903
Component Function Check .................................903
Diagnosis Procedure .............................................903
Component Inspection ..........................................904
P1556, P1557 BATTERY TEMPERATURE
SENSOR ......................................................... ..
906
DTC Logic ............................................................ .906
Diagnosis Procedure .............................................906
Component Inspection (Battery Temperature
Sensor) ................................................................ .
907
P1564 ASCD STEERING SWITCH ..................908
DTC Logic ............................................................ .908
Diagnosis Procedure .............................................908
Component Inspection ..........................................910
P1572 ASCD BRAKE SWITCH ........................911
Description ........................................................... .911
DTC Logic .............................................................911
Component Function Check .................................912
Diagnosis Procedure .............................................913
Component Inspection (Brake Pedal Position
Switch) ................................................................. .
916
Component Inspection (Stop Lamp Switch) ..........916
Component Inspection (Stop Lamp Relay) ...........917
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SYSTEMEC-57
< SYSTEM DESCRIPTION > [QR25DE]
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tioner)INFOID:0000000009462102
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
• When cranking the engine.
• At high engine speeds.
• When the engine coolant temperature becomes excessively high.
• When operating power steering during low engine speed or low vehicle speed.
• When engine speed is excessively low.
• When refrigerant pressure is excessively low or high.
AIR CONDITIONING CUT CONTROL : System Description (with manual air condition-
JPBIA5979GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-58
< SYSTEM DESCRIPTION >[QR25DE]
SYSTEM
er)
INFOID:0000000009462103
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
This system improves engine operati on when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
• When cranking the engine.
• At high engine speeds.
• When the engine coolant temperat ure becomes excessively high.
• When operating power steering during low engine speed or low vehicle speed.
• When engine speed is excessively low.
• When refrigerant pressure is excessively low or high.
COOLING FAN CONTROL
JPBIA6222GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-80
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
TP SEN 1-B1
V××
• The throttle position sensor signal volt-age is displayed. • TP SEN 2-B1 signal is convert-
ed by ECM internally. Thus, it
differs from ECM terminal volt-
age signal.
TP SEN 2-B1
××
FUEL T/TMP SE °C or °F • The fuel temperature (determined by the
signal voltage of the fuel tank tempera-
ture sensor) is displayed.
EVAP SYS PRES V • The signal voltage of EVAP control sys-
tem pressure sensor is displayed.
FUEL LEVEL SE V ו The signal voltage of the fuel level sensor
is displayed.
START SIGNAL On/Off • Indicates start signal status [ON/OFF]
computed by the ECM according to the
signals of engine speed and battery volt-
age. • After starting the engine, [OFF]
is displayed regardless of the
starter signal.
CLSD THL POS On/Off ×ו Indicates idle position [ON/OFF] comput-
ed by ECM according to the accelerator
pedal position sensor signal.
AIR COND SIG On/Off ×ו Indicates [ON/OFF] condition of the air
conditioner switch as determined by the
air conditioner signal.
PW/ST SIGNAL On/Off ×ו [ON/OFF] condition of the power steering
system (determined by the signal sent
from EPS control unit) is indicated.
LOAD SIGNAL On/Off ×ו Indicates [ON/OFF] condition from the
electrical load signal.
- On: Rear window defogger switch is ON and/or lighting switch is in 2nd position.
- Off: Both rear window defogger switch
and lighting switch are OFF.
IGNITION SW On/Off ×ו Indicates [ON/OFF] condition from igni-
tion switch signal.
HEATER FAN SW On/Off ו Indicates [ON/OFF] condition from the
heater fan switch signal.
BRAKE SW On/Off • Indicates [ON/OFF] condition from the
stop lamp switch signal.
INJ PULSE-B1 msec • Indicates the actual fuel injection pulse
width compensated by ECM according to
the input signals. • When the engine is stopped, a
certain computed value is indi-
cated.
IGN TIMING BTDC ו Indicates the ignition timing computed by
ECM according to the input signals. • When the engine is stopped, a
certain value is indicated.
CAL/LD VALUE % • “Calculated load value” indicates the val-
ue of the current air flow divided by peak
air flow.
MASS AIRFLOW g/s • Indicates the mass air flow computed by
ECM according to the signal voltage of
the mass air flow sensor.
Monitored item Unit
Monitor Item
Selection
Description Remarks
ECU
IN-
PUT
SIG-
NALS MAIN
SIG-
NAL S
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM