CO-50
< SERVICE INFORMATION >[MR18DE]
WATER OUTLET AND WATER CONTROL VALVE
WATER OUTLET AND WATER CONTROL VALVE
ComponentINFOID:0000000005930820
A/T MODELS
PBIC4699E
1. Engine coolant temperature sensor 2. Rubber ring
3. Water control valve
4. Gasket 5. Water hose 6. Gasket
7. Water hose 8. Water outlet 9. Heater hose
10. Heater hose 11. Radiator hose (upper) Front
A. To heater B. To electric throttle control actuator C. To radiator
Revision: May 2010 2011 Versa
WATER OUTLET AND WATER CONTROL VALVECO-51
< SERVICE INFORMATION > [MR18DE]
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CVT MODELS
Removal and InstallationINFOID:0000000005930821
REMOVAL
1. Drain engine coolant from radiator. Refer to
CO-36, "Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Never spill engine coolant on drive belt.
2. Remove battery and battery tray. Refer to SC-7, "
Removal and Installation".
3. Remove air cleaner and air duct. Refer to EM-135, "
Component".
4. Remove radiator hose (lower) from engine. Refer to CO-40, "
Component".
5. Remove heater hoses and water hoses.
6. Remove CVT warmer hose (CVT models only).
7. Remove water outlet.
8. Remove water control valve.
9. Remove engine coolant temperature sensor from the water outlet, if necessary. CAUTION:
• Handle carefully to avoid any shock to engine coolant temperature sensor.
• Replace the gasket with a new one.
INSPECTION AFTER REMOVAL
AWBIA0962ZZ
1. Engine coolant temperature sensor 2. Rubber ring 3. Water control valve
4. Gasket 5. Water hose 6. Gasket
7. Water hose 8. Water outlet 9. Heater hose
10. Heater hose 11. CVT warmer hose 12. Radiator hose (upper)
Front A. To heater B. To electric throttle control actuator
C. To radiator D. To CVT fluid warmer
Revision: May 2010 2011 Versa
EC-2
System Diagram ....................................................56
System Description .................................................56
Component Parts Location ...................................57
Component Description ..........................................61
AIR CONDITIONING CUT CONTROL ..............63
System Diagram .................................................. ...63
System Description .................................................63
Component Parts Location ...................................64
Component Description ..........................................68
CAN COMMUNICATION ...................................70
System Description .................................................70
COOLING FAN CONTROL ...............................71
System Diagram .................................................. ...71
System Description .................................................71
Component Parts Location ...................................73
Component Description ..........................................77
EVAPORATIVE EMISSION SYSTEM ...............79
System Diagram .................................................. ...79
System Description .................................................79
Component Parts Location ...................................83
Component Description .........................................87
INTAKE VALVE TIMING CONTROL .................89
System Diagram .................................................. ...89
System Description .................................................89
Component Parts Location ...................................90
Component Description ..........................................94
ON BOARD DIAGNOSTIC (OBD) SYSTEM .....95
Diagnosis Description .......................................... ...95
GST (Generic Scan Tool) .......................................95
DIAGNOSIS SYSTEM (ECM) ............................96
DIAGNOSIS DESCRIPTION .................................. ...96
DIAGNOSIS DESCRIPTION : 1st Trip Detection
Logic and Two Trip Detection Logic .......................
96
DIAGNOSIS DESCRIPTION : DTC and Freeze
Frame Data .............................................................
96
DIAGNOSIS DESCRIPTION : Counter System .....97
DIAGNOSIS DESCRIPTION : Driving Pattern ......100
DIAGNOSIS DESCRIPTION : System Readiness
Test (SRT) Code ................................................. ..
101
DIAGNOSIS DESCRIPTION : Permanent Diag-
nostic Trouble Code (Permanent DTC) .................
102
DIAGNOSIS DESCRIPTION : Malfunction Indica-
tor Lamp (MIL) ..................................................... ..
103
On Board Diagnosis Function ................................103
CONSULT-III Function ..........................................106
COMPONENT DIAGNOSIS .......................114
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ............................................................ .
114
Description ........................................................... ..114
Component Function Check ..................................114
Diagnosis Procedure .............................................115
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT .........................................................
122
Description ........................................................... .122
Diagnosis Procedure .............................................122
POWER SUPPLY AND GROUND CIRCUIT ....123
Wiring Diagram .................................................... .123
Diagnosis Procedure .............................................123
Ground Inspection .................................................127
U0101 CAN COMM CIRCUIT ...........................128
Description ........................................................... .128
DTC Logic .............................................................128
Wiring Diagram .....................................................129
Diagnosis Procedure .............................................129
U0140 CAN COMM CIRCUIT ...........................130
Description ........................................................... .130
DTC Logic .............................................................130
Wiring Diagram .....................................................131
Diagnosis Procedure .............................................131
U1001 CAN COMM CIRCUIT ...........................132
Description ........................................................... .132
DTC Logic .............................................................132
Wiring Diagram .....................................................133
Diagnosis Procedure .............................................133
P0011 IVT CONTROL ......................................134
DTC Logic ............................................................ .134
Diagnosis Procedure .............................................135
Component Inspection ..........................................136
P0031, P0032 A/F SENSOR 1 HEATER ..........138
Description ........................................................... .138
DTC Logic .............................................................138
Wiring Diagram .....................................................139
Diagnosis Procedure .............................................139
Component Inspection ..........................................141
P0037, P0038 HO2S2 HEATER .......................142
Description ........................................................... .142
DTC Logic .............................................................142
Wiring Diagram .....................................................143
Diagnosis Procedure .............................................143
Component Inspection ..........................................145
P0075 IVT CONTROL SOLENOID VALVE ......146
Description ........................................................... .146
DTC Logic .............................................................146
Wiring Diagram .....................................................147
Diagnosis Procedure .............................................147
Component Inspection ..........................................148
P0101 MAF SENSOR .......................................150
Description ........................................................... .150
DTC Logic .............................................................150
Component Function Check .................................151
Wiring Diagram .....................................................153
Diagnosis Procedure .............................................153
Component Inspection ..........................................155
Revision: May 2010 2011 Versa
EC-8
Idle Air Volume Learning .......................................580
Fuel Pressure Check .............................................582
TROUBLE DIAGNOSIS ...................................585
Trouble Diagnosis Introduction ............................ ..585
DTC Inspection Priority Chart ................................590
Fail-Safe Chart ......................................................590
Symptom Matrix Chart ...........................................592
Engine Control Component Parts Location ...........596
Vacuum Hose Drawing ..........................................602
Circuit Diagram .................................................... ..603
ECM Harness Connector Terminal Layout ............605
ECM Terminal and Reference Value ................... ..605
CONSULT-III Function (ENGINE) .........................612
Generic Scan Tool (GST) Function .......................618
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
620
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE .............................................................
624
Description ........................................................... ..624
Testing Condition ...................................................624
Inspection Procedure .............................................624
Diagnosis Procedure .............................................624
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT ........................................................
632
Description ........................................................... ..632
Diagnosis Procedure .............................................632
POWER SUPPLY AND GROUND CIRCUIT ...633
Wiring Diagram .................................................... ..633
Diagnosis Procedure .............................................634
Ground Inspection .................................................638
DTC U0101 CAN COMMUNICATION LINE ....639
Description ........................................................... ..639
On Board Diagnosis Logic .....................................639
DTC Confirmation Procedure ................................639
Wiring Diagram ......................................................640
Diagnosis Procedure .............................................640
DTC U0140 CAN COMMUNICATION LINE ....641
Description ........................................................... ..641
On Board Diagnosis Logic .....................................641
DTC Confirmation Procedure ................................641
Wiring Diagram ......................................................642
Diagnosis Procedure .............................................642
DTC U1001 CAN COMMUNICATION LINE ....643
Description ........................................................... ..643
On Board Diagnosis Logic .....................................643
DTC Confirmation Procedure ................................643
Wiring Diagram ......................................................644
Diagnosis Procedure .............................................644
DTC P0011 IVT CONTROL .............................645
Description ........................................................... ..645
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
645
On Board Diagnosis Logic .....................................646
DTC Confirmation Procedure ............................... .646
Diagnosis Procedure .............................................647
Component Inspection ..........................................648
Removal and Installation .......................................648
DTC P0031, P0032 A/F SENSOR 1 HEATER ..649
Description ........................................................... .649
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... .
649
On Board Diagnosis Logic ....................................649
DTC Confirmation Procedure ................................649
Wiring Diagram .....................................................650
Diagnosis Procedure .............................................651
Component Inspection ..........................................652
Removal and Installation .......................................653
DTC P0037, P0038 HO2S2 HEATER ............ ..654
Description ........................................................... .654
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... .
654
On Board Diagnosis Logic ....................................654
DTC Confirmation Procedure ................................654
Wiring Diagram .....................................................655
Diagnosis Procedure .............................................656
Component Inspection ..........................................658
Removal and Installation .......................................658
DTC P0075 IVT CONTROL SOLENOID
VALVE ............................................................ ..
659
Component Description ....................................... .659
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... .
659
On Board Diagnosis Logic ....................................659
DTC Confirmation Procedure ................................659
Wiring Diagram .....................................................660
Diagnosis Procedure .............................................661
Component Inspection ..........................................662
Removal and Installation .......................................663
DTC P0101 MAF SENSOR ............................ ..664
Component Description ....................................... .664
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... .
664
On Board Diagnosis Logic ....................................664
DTC Confirmation Procedure ................................664
Overall Function Check .........................................665
Wiring Diagram .....................................................667
Diagnosis Procedure .............................................668
Component Inspection ..........................................670
Removal and Installation .......................................671
DTC P0102, P0103 MAF SENSOR ................ ..672
Component Description ....................................... .672
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... .
672
On Board Diagnosis Logic ....................................672
DTC Confirmation Procedure ................................672
Wiring Diagram .....................................................674
Diagnosis Procedure .............................................675
Component Inspection ..........................................677
Revision: May 2010 2011 Versa
EC-14
Wiring Diagram ....................................................1005
Diagnosis Procedure ...........................................1005
ELECTRICAL LOAD SIGNAL ........................1007
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1007
Diagnosis Procedure ...........................................1007
FUEL INJECTOR ............................................1009
Component Description .......................................1009
CONSULT-III Reference Va lue in Data Monitor
Mode ....................................................................
1009
Wiring Diagram ....................................................1010
Diagnosis Procedure ...........................................1011
Component Inspection .........................................1013
Removal and Installation .....................................1013
FUEL PUMP ....................................................1014
Description ...........................................................1014
CONSULT-III Reference Va lue in Data Monitor
Mode ....................................................................
1014
Wiring Diagram ....................................................1015
Diagnosis Procedure ...........................................1016
Component Inspection .........................................1018
Removal and Installation .....................................1018
IGNITION SIGNAL ..........................................1019
Component Description .......................................1019
Wiring Diagram ....................................................1020
Diagnosis Procedure ............................................1023
Component Inspection .........................................1026
Removal and Installation ......................................1027
REFRIGERANT PRESSURE SENSOR .........1028
Component Description .......................................1028
Wiring Diagram ....................................................1029
Diagnosis Procedure ............................................1030
Removal and Installation ......................................1032
MIL AND DATA LINK CONNECTOR .............1033
Wiring Diagram ....................................................1033
SERVICE DATA AND SPECIFICATIONS
(SDS) ..............................................................
1035
Fuel Pressure .......................................................1035
Idle Speed and Ignition Timing ............................1035
Calculated Load Value .........................................1035
Mass Air Flow Sensor ..........................................1035
Intake Air Temperature Se nsor ............................1035
Engine Coolant Temperature Sensor ..................1035
Air Fuel Ratio (A/F) Sensor 1 Heater ...................1036
Heated Oxygen sensor 2 Heater .........................1036
Crankshaft Position Sensor (POS) ......................1036
Camshaft Position Sensor (PHASE) ....................1036
Throttle Control Motor ...... ....................................1036
Fuel Injector .........................................................1036
Fuel Pump ............................................................1036
Revision: May 2010 2011 Versa
ENGINE CONTROL SYSTEMEC-45
< FUNCTION DIAGNOSIS > [HR16DE]
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Component DescriptionINFOID:0000000005929766
1. Cooling fan motor harness connec-
tor 2. Crankshaft position sensor 3. Stop lamp switch
4. Brake pedal 5. Accelerator pedal position sensor
harness connector 6. Accelerator pedal position sensor
7. Accelerator pedal 8. Fuel level sensor unit and fuel pump
harness connector (view with in-
spection hole cover removed) 9. Fuel pressure regulator
10. Fuel pump
AWBIA0044ZZ
Component Reference
A/F sensor 1 EC-185, "
Description"
A/F sensor 1 heaterEC-138, "Description"
Accelerator pedal position sensorEC-402, "Description"
Camshaft position sensor (PHASE)EC-272, "Description"
Revision: May 2010 2011 Versa
EC-46
< FUNCTION DIAGNOSIS >[HR16DE]
ENGINE CONTROL SYSTEM
Crankshaft position sensor (POS)
EC-267, "Description"
Cooling fan motorEC-71, "System Description"
Electric throttle control actuatorEC-400, "Description"
Engine coolant temperature sensorEC-168, "Description"
EVAP canister purge volume control solenoid valveEC-295, "Description"
EVAP canister vent control valveEC-305, "Description"
EVAP control system pressure sensorEC-316, "Description"
Fuel injectorEC-433, "Description"
Fuel level sensorEC-346, "Description"
Fuel pumpEC-437, "Description"
Fuel tank temperature sensorEC-244, "Description"
Heated oxygen sensor 2EC-207, "Description"
Heated oxygen sensor 2 heaterEC-142, "Description"
Ignition signalEC-442, "Description"
Intake air temperature sensorEC-164, "Description"
Intake valve timing control solenoid valveEC-89, "System Description"
Knock sensorEC-263, "Description"
Mass air flow sensorEC-150, "Description"
PCV valveEC-459, "Description"
Refrigerant pressure sensorEC-460, "Description"
Stop lamp switchEC-383, "Description"
Throttle control motorEC-396, "Description"
Throttle control motor relayEC-387, "Description"
Throttle position sensorEC-174, "Description"
Component Reference
Revision: May 2010 2011 Versa
EC-110
< FUNCTION DIAGNOSIS >[HR16DE]
DIAGNOSIS SYSTEM (ECM)
IGNITION SW ON/OFF• Indicates [ON/OFF] condition from ignition switch sig-
nal.
HEATER FAN SW ON/OFF • 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 compen-
sated by ECM according to the input signals. • When the engine is stopped, a certain
computed value is indicated.
IGN TIMING BTDC• Indicates the ignition timing computed by ECM ac-
cording to the input signals. • When the engine is stopped, a certain
value is indicated.
CAL/LD VALUE %• “Calculated load value” indicates the value of the cur-
rent air flow divided by peak air flow.
MASS AIRFLOW g/s • Indicates the mass air flow computed by ECM accord-
ing to the signal voltage of the mass air flow sensor.
PURG VOL C/V % • Indicates the EVAP canister purge volume control so-
lenoid valve control value computed by the ECM ac-
cording to the input signals.
• The opening becomes larger as the value increases.
INT/V TIM(B1) °CA • Indicates [ °CA] of intake camshaft advance angle.
INT/V SOL(B1) %• The control value of the intake valve timing control so-
lenoid valve (determined by ECM according to the in-
put signals) is indicated.
• The advance angle becomes larger as the value in-
creases.
AIR COND RLY ON/OFF • The air conditioner relay control condition (determined
by ECM according to the input signals) is indicated.
FUEL PUMP RLY ON/OFF • Indicates the fuel pump relay control condition deter-
mined by ECM according to the input signals.
VENT CONT/V ON/OFF • The control condition of the EVAP canister vent control
valve (determined by ECM according to the input sig-
nals) is indicated.
ON: Closed
OFF: Open
THRTL RELAY ON/OFF • Indicates the throttle contro
l motor relay control condi-
tion determined by the ECM according to the input sig-
nals.
COOLING FAN HI/LOW/
OFF• Indicates the condition of the cooling fan (determined
by ECM according to the input signals).
HI: High speed operation
LOW: Low speed operation
OFF: Stop
HO2S2 HTR (B1) ON/OFF • Indicates [ON/OFF] condition of heated oxygen sen-
sor 2 heater determined by ECM according to the in-
put signals.
I/P PULLY SPD rpm • Indicates the engine speed computed from the prima-
ry sped sensor signal.
VEHICLE SPEED km/h or
mph • The vehicle speed computed from the vehicle speed
signal sent from TCM is displayed.
IDL A/V LEARN YET/CM-
PLT • Display the condition of Idle Air Volume Learning
YET: Idle air volume learning has not been performed
yet.
CMPLT: Idle air volume learning has already been per-
formed successfully.
TRVL AFTER MIL km or
mile • Distance traveled while MIL is activated.
Monitored item Unit
DescriptionRemarks
Revision: May 2010 2011 Versa