2007 NISSAN LATIO sensor

COMBINATION METERS
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Trouble DiagnosisEKS00I0D
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Perform preliminary check. Refer to DI-17, "
PRELIMINARY CHECK" .
3. According to the symptom chart, repair or replace the cause of the malfunction. Refer to DI-17, "
Symptom
Chart" .
4. Does the meter operate normally? If so, GO TO 5. If not, GO TO 2.
5. Inspection End.
PRELIMINARY CHECK
1. CHECK SELF-DIAGNOSIS OPERATION OF COMBINATION METER
Perform self-diagnosis of combination meter. Refer to DI-13, "
OPERATION PROCEDURE" .
Does self
-diagnosis mode operate?
YES >> GO TO 2.
NO >> Check power supply and ground circuit of combination meter. Refer to DI-17, "
Power Supply and
Ground Circuit Inspection" .
2. CHECK COMBINATION METER (CONSULT-II)
Select “METER” on CONSULT-II and perform self-diagnosis of combination meter. Refer to DI-14, "
SELF-
DIAGNOSTIC RESULTS" .
Self
-diagnostic results content
No malfunction detected>> Refer to DI-17, "Symptom Chart" .
Malfunction detected>> Refer to DI-14, "
Display Item List" .
Symptom Chart EKS00I0E
Power Supply and Ground Circuit InspectionEKS00I0F
1. CHECK FUSE
Check for blown combination meter fuses.
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-4, "
POWER
SUPPLY ROUTING CIRCUIT" .
Symptom Possible cause
Improper speedometer and odo/trip meter indication. Refer to DI-18, "
Vehicle Speed Signal Inspection" .
Improper tachometer indication. Refer to DI-20, "
Engine Speed Signal Inspection" .
Improper fuel gauge indication.
Refer to DI-20, "
Fuel Level Sensor Signal Inspection" .
Low-fuel warning lamp indication is irregular.
Improper A/T position indication. Refer to DI-40, "
A/T Indicator Does Not Illuminate" .
Improper CVT position indication. Refer to DI-45, "
CVT Indicator Does Not Illuminate" .
Power source Fuse No.
Battery 13
Ignition switch ON or START 14

COMBINATION METERS
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WITHOUT ABS OR CVT
1. CHECK VEHICLE SPEED SENSOR CIRCUITS
1. Remove vehicle speed sensor.
2. Turn ignition switch ON.
3. Rotate vehicle speed sensor while checking voltage between
combination meter harness connector M24 terminals 5 and 26.
OK or NG
OK >> Replace combination meter. Refer to IP-19, "COMBINATION METER" .
NG >> GO TO 2.
2. CHECK VEHICLE SPEED SENSOR
1. Turn ignition switch OFF.
2. Disconnect vehicle speed sensor connector.
3. Check resistance between vehicle speed sensor terminals 1 and
2.
OK or NG
OK >> Check harness or connector between combination meter and vehicle speed sensor.
NG >> Replace vehicle speed sensor.
WITH CVT, WITHOUT ABS
1. CHECK COMBINATION METER INPUT SIGNAL
1. Start engine and select “METER” on CONSULT-II.
2. Using “SPEED METER” on “DATA MONITOR”, compare the
value of “DATA MONITOR” with speedometer pointer of combi-
nation meter.
OK or NG
OK >> Perform TCM self-diagnosis. Refer to CVT-60, "SELF-
DIAGNOSTIC RESULT MODE" .
NG >> Replace combination meter. Refer to IP-19, "
COMBINA-
TION METER" .
Te r m i n a l s
Voltage
(Approx.) (+) (–)
Connector Terminal Connector Terminal
M24 5 M24 26 0.5
LKIA0784E
Te r m i n a l s
Resistance
value
(Approx.) (+) (–)
Component Terminal Component Terminal
Vehicle
speed
sensor1Vehicle
speed
sensor2250Ω
WKIA5453E
SKIB4578E

DI-20
COMBINATION METERS
Revision: June 20062007 Versa
Engine Speed Signal Inspection EKS00I0H
Symptom: Improper tachometer indication.
1. CHECK COMBINATION METER INPUT SIGNAL
1. Start engine and select “METER” on CONSULT-II.
2. Using “TACHO METER” on “DATA MONITOR”, compare the
value of “DATA MONITOR” with tachometer pointer of combina-
tion meter.
OK or NG
OK >> Perform ECM self-diagnosis. Refer to EC-116, "SELF-
DIAG RESULTS MODE" .
NG >> Replace combination meter. Refer to IP-19, "
COMBINA-
TION METER" .
Fuel Level Sensor Signal InspectionEKS00I0J
Symptom:

Improper fuel gauge indication.

Low-fuel warning lamp indication is irregular.
NOTE:
The following symptoms do not indicate a malfunction.

Depending on vehicle position or driving circumstance, the fuel level in the tank shifts and the indication
may fluctuate.

If the vehicle is fueled with the ignition switch ON, the indication will update slowly.

If the vehicle is tilted when the ignition switch is turned ON, fuel in the tank may flow to one direction
resulting in a change of reading.
1. CHECK COMBINATION METER INPUT SIGNAL
1. Select “METER” on CONSULT-II.
2. Using “FUEL METER” on “DATA MONITOR”, compare the value
of “DATA MONITOR” with fuel gauge pointer of combination
meter.
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter. Refer to IP-19, "
COMBINATION METER" .
2. CHECK HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Check combination meter and fuel level sensor unit terminals (meter-side and harness-side) for poor con-
nection.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace terminals or connectors.
PKIA2090E
Fuel gauge pointer Reference value of data monitor [lit.]
Full Approx. 49
3/4 Approx. 34
1/2 Approx. 22
1/4 Approx. 10
Empty Approx. 4
PKIA2088E

COMBINATION METERS
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3. CHECK FUEL LEVEL SENSOR UNIT CIRCUIT
1. Disconnect combination meter connector and fuel level sensor
unit connector.
2. Check continuity between combination meter harness connector
(A) and fuel level sensor unit and fuel pump harness connector
(B).
3. Check continuity between combination meter harness connector
(A) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK FUEL LEVEL SENSOR UNIT GROUND CIRCUIT
1. Check continuity between combination meter harness connector
(A) and fuel level sensor unit and fuel pump harness connector
(B).
2. Check continuity between combination meter harness connector
(A) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK FUEL LEVEL SENSOR UNIT
Check fuel level sensor unit. Refer to DI-23, "
FUEL LEVEL SENSOR UNIT CHECK" .
OK or NG
OK >> Check fuel level sensor unit installation, and check whether the float arm interferes or binds with
any of the internal components in the fuel tank. Repair or replace malfunctioning part, if neces-
sary.
NG >> Replace fuel level sensor unit.
AB
Continuity
Connector Terminal Connector Terminal
M24 6 B100 2 Yes
A
GroundContinuity
Connector Terminal
M24 6 No
WKIA5454E
AB
Continuity
Connector Terminal Connector Terminal
M24 24 B100 5 Yes
A
GroundContinuity
Connector Terminal
M24 24 No
WKIA5455E

DI-22
COMBINATION METERS
Revision: June 20062007 Versa
Fuel Gauge Fluctuates, Indicates Wrong Value, or VariesEKS00I0K
1. CHECK FUEL GAUGE FLUCTUATION
Test drive vehicle to see if gauge fluctuates only during driving or at the instant of stopping.
Does the indication value vary only during driving or at the at the instant of stopping?
YES >> The pointer fluctuation may be caused by fuel level change in the fuel tank. Condition is normal.
NO >> Ask the customer about the situation when the symptom occurs in detail, and perform the trouble
diagnosis.
Fuel Gauge Does Not Move to Full positionEKS00I0L
1. OBSERVE FUEL GAUGE
Does it take a long time for the pointer to move to FULL position?
YES or NO
YES >> GO TO 2.
NO >> GO TO 3.
2. IDENTIFY FUELING CONDITION
Was the vehicle fueled with the ignition switch ON?
YES or NO
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.
3. OBSERVE VEHICLE POSITION
Is the vehicle parked on an incline?
YES or NO
YES >> Check the fuel level indication with vehicle on a level surface.
NO >> GO TO 4.
4. OBSERVE FUEL GAUGE POINTER
During driving, does the fuel gauge pointer move gradually toward EMPTY position?
YES or NO
YES >> Check the components. Refer to DI-23, "FUEL LEVEL SENSOR UNIT CHECK" .
NO >> The float arm may interfere or bind with any of the components in the fuel tank.
DTC [U1000] CAN Communication CircuitEKS00IAR
Symptom: Display CAN COMM CIRC [U1000] at the result of self-diagnosis for combination meter.
1. CHECK CAN COMMUNICATION
1. Select "SELF-DIAG RESULTS" mode for "METER" with CONSULT-II.
2. Print out CONSULT-II screen.
>> Go to "CAN SYSTEM". Refer to LAN-44, "
TROUBLE DIAGNOSIS" .

COMBINATION METERS
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Electrical Components InspectionEKS00I0M
FUEL LEVEL SENSOR UNIT CHECK
For removal, refer to FL-5, "Removal and Installation" .
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.
Check Fuel Level Sensor Unit and Fuel Pump Harness
Check continuity at the 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.
Removal and Installation EKS00I0N
COMBINATION METER
Refer to IP-19, "COMBINATION METER" .
Terminals Float position mm (in)Resistance
value (Ω)
(Approx.)
251* Full 160 (8.07) 6
2* Empty 20 (1.02) 80
WKIA5456E
Terminal Continuity
2 - Signal terminal (A)
Ye s
5 - Ground terminal (B)
WKIA5457E

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC
A
EC
Revision: June 20062007 Versa INDEX FOR DTC ........................................................ 8
DTC No. Index ......................................................... 8
Alphabetical Index .................................................. 12
PRECAUTIONS ........................................................ 16
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 16
Precautions for Procedures without Cowl Top Cover ... 16
On Board Diagnostic (OBD) System of Engine and
A/T, CVT ................................................................. 16
Precaution .............................................................. 17
PREPARATION ......................................................... 20
Special Service Tools ............................................. 20
Commercial Service Tools ...................................... 21
ENGINE CONTROL SYSTEM .................................. 22
System Diagram ..................................................... 22
Multiport Fuel Injection (MFI) System .................... 23
Electronic Ignition (EI) System ............................... 25
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 26
AIR CONDITIONING CUT CONTROL ..................... 27
Input/Output Signal Chart ....................................... 27
System Description ................................................ 27
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ... 28
System Description ................................................ 28
Component Description .......................................... 29
CAN COMMUNICATION .......................................... 30
System Description ................................................ 30
EVAPORATIVE EMISSION SYSTEM ....................... 31
Description ............................................................. 31
Component Inspection ........................................... 34
Removal and Installation ........................................ 35
How to Detect Fuel Vapor Leakage ....................... 35
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ...................................................................... 38
System Description ................................................ 38
Diagnostic Procedure ............................................. 39
Component Inspection ........................................... 42
POSITIVE CRANKCASE VENTILATION ................. 44Description .............................................................. 44
Component Inspection ............................................ 44
NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-
NATS) ........................................................................ 46
Description .............................................................. 46
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 47
Introduction ............................................................. 47
Two Trip Detection Logic ........................................ 47
Emission-related Diagnostic Information ................ 48
Malfunction Indicator Lamp (MIL) ........................... 61
OBD System Operation Chart ................................ 65
BASIC SERVICE PROCEDURE ............................... 70
Basic Inspection ..................................................... 70
Idle Speed and Ignition Timing Check .................... 75
Procedure After Replacing ECM ............................ 77
VIN Registration ..................................................... 77
Accelerator Pedal Released Position Learning ...... 77
Throttle Valve Closed Position Learning ................. 78
Idle Air Volume Learning ........................................ 78
Fuel Pressure Check .............................................. 81
TROUBLE DIAGNOSIS ............................................ 83
Trouble Diagnosis Introduction ............................... 83
DTC Inspection Priority Chart ................................. 89
Fail-Safe Chart ....................................................... 91
Symptom Matrix Chart ............................................ 92
Engine Control Component Parts Location ............ 96
Vacuum Hose Drawing .........................................102
Circuit Diagram .....................................................103
ECM Harness Connector Terminal Layout ...........105
ECM Terminals and Reference Value ...................105
CONSULT-II Function (ENGINE) ..........................113
Generic Scan Tool (GST) Function .......................126
CONSULT-II Reference Value in Data Monitor .....128
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................131
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .133
Description ............................................................133
Testing Condition ..................................................133
Inspection Procedure ............................................133
Diagnostic Procedure ...........................................134

EC-2Revision: June 20062007 Versa TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................143
Description ............................................................143
Diagnostic Procedure ...........................................143
POWER SUPPLY AND GROUND CIRCUIT ...........144
Wiring Diagram .....................................................144
Diagnostic Procedure ...........................................145
Ground Inspection ................................................150
DTC U1000, U1001 CAN COMMUNICATION LINE .151
Description ............................................................151
On Board Diagnosis Logic ....................................151
DTC Confirmation Procedure ...............................151
Wiring Diagram .....................................................152
Diagnostic Procedure ...........................................153
DTC U1010 CAN COMMUNICATION .....................154
Description ............................................................154
On Board Diagnosis Logic ....................................154
DTC Confirmation Procedure ...............................154
Diagnostic Procedure ...........................................155
DTC P0011 IVT CONTROL .....................................156
Description ............................................................156
CONSULT-II Reference Value in Data Monitor Mode
.156
On Board Diagnosis Logic ....................................157
DTC Confirmation Procedure ...............................157
Diagnostic Procedure ...........................................158
Component Inspection ..........................................160
Removal and Installation ......................................160
DTC P0031, P0032 A/F SENSOR 1 HEATER ........161
Description ............................................................161
CONSULT-II Reference Value in Data Monitor Mode
.161
On Board Diagnosis Logic ....................................161
DTC Confirmation Procedure ...............................161
Wiring Diagram .....................................................162
Diagnostic Procedure ...........................................163
Component Inspection ..........................................165
Removal and Installation ......................................165
DTC P0037, P0038 HO2S2 HEATER .....................166
Description ............................................................166
CONSULT-II Reference Value in Data Monitor Mode
.166
On Board Diagnosis Logic ....................................166
DTC Confirmation Procedure ...............................167
Wiring Diagram .....................................................168
Diagnostic Procedure ...........................................170
Component Inspection ..........................................172
Removal and Installation ......................................172
DTC P0075 IVT CONTROL SOLENOID VALVE ....173
Component Description ........................................173
CONSULT-II Reference Value in Data Monitor Mode
.173
On Board Diagnosis Logic ....................................173
DTC Confirmation Procedure ...............................173
Wiring Diagram .....................................................174
Diagnostic Procedure ...........................................176
Component Inspection ..........................................177
Removal and Installation ......................................177
DTC P0101 MAF SENSOR .....................................178Component Description ........................................ 178
CONSULT-II Reference Value in Data Monitor Mode
. 178
On Board Diagnosis Logic .................................... 178
DTC Confirmation Procedure ................................ 178
Overall Function Check ......................................... 180
Wiring Diagram ..................................................... 181
Diagnostic Procedure ............................................ 182
Component Inspection .......................................... 185
Removal and Installation ....................................... 186
DTC P0102, P0103 MAF SENSOR ......................... 187
Component Description ........................................ 187
CONSULT-II Reference Value in Data Monitor Mode
. 187
On Board Diagnosis Logic .................................... 187
DTC Confirmation Procedure ................................ 188
Wiring Diagram ..................................................... 189
Diagnostic Procedure ............................................ 190
Component Inspection .......................................... 193
Removal and Installation ....................................... 194
DTC P0112, P0113 IAT SENSOR ............................ 195
Component Description ........................................ 195
On Board Diagnosis Logic .................................... 195
DTC Confirmation Procedure ................................ 195
Wiring Diagram ..................................................... 197
Diagnostic Procedure ............................................ 198
Component Inspection .......................................... 199
Removal and Installation ....................................... 199
DTC P0117, P0118 ECT SENSOR .......................... 200
Component Description ........................................ 200
On Board Diagnosis Logic .................................... 200
DTC Confirmation Procedure ................................ 201
Wiring Diagram ..................................................... 202
Diagnostic Procedure ............................................ 203
Component Inspection .......................................... 205
Removal and Installation ....................................... 205
DTC P0122, P0123 TP SENSOR ............................ 206
Component Description ........................................ 206
CONSULT-II Reference Value in Data Monitor Mode
. 206
On Board Diagnosis Logic .................................... 206
DTC Confirmation Procedure ................................ 207
Wiring Diagram ..................................................... 208
Diagnostic Procedure ............................................ 209
Component Inspection ..........................................211
Removal and Installation .......................................211
DTC P0125 ECT SENSOR ...................................... 212
Description ............................................................ 212
On Board Diagnosis Logic .................................... 212
DTC Confirmation Procedure ................................ 213
Diagnostic Procedure ............................................ 213
Component Inspection .......................................... 214
Removal and Installation ....................................... 214
DTC P0127 IAT SENSOR ........................................ 215
Component Description ........................................ 215
On Board Diagnosis Logic .................................... 215
DTC Confirmation Procedure ................................ 216
Diagnostic Procedure ............................................ 216