2009 NISSAN LATIO service

CVT INDICATOR
DI-41
< SERVICE INFORMATION >
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Perform self-diagnosis of combination meter. Refer to
DI-10, " Self-
Diagnosis Mode of Combination Meter " .
Are all segments displayed? YES >> GO TO 2.
NO >> Replace combination meter. Refer to IP-12, " Removal
and Installation " .
2.
CHECK COMBINATION METER (CONSULT-III)
1. Connect CONSULT-III.
2. Select “METER/M&A” on CONSULT-III, and perform se lf-diagnosis of combination meter. Refer to DI-12," CONSULT-III Function (METER/M&A) " .
Self - diagnostic results content
No malfunction detected>>GO TO 3.
Malfunction detected>> Check applicable parts, and repair or replace as necessary. 3.
CHECK COMBINATION METER INPUT SIGNAL
Use “DATA MONITOR” of “METER/M&A” on CONSULT-II I. Confirm each indication on the monitor when oper-
ating the CVT selector lever.
OK or NG OK >> Replace combination meter. Refer to
IP-12, " Removal and Installation " .
NG >> GO TO 4. 4.
CHECK SELF-DIAGNOSIS RESULTS OF TCM
Perform self-diagnosis of TCM. Refer to CVT-230, " CONSULT-III Function (TRANSMISSION) " .
OK or NG OK >> Check TCM input/output signal. Repair or repl
ace malfunctioning part, if necessary. Refer to CVT-204, " Input/Output Signal of TCM " .
NG >> Check applicable part, and repair or replace as necessary. SKIB1206J
CONSULT-III dis-
play Switch operation Operation status
P RANGE IND P range position ON
Except for P range position OFF
R RANGE IND R range position ON
Except for R range position OFF
N RANGE IND N range position ON
Except for N range position OFF
D RANGE IND D range position ON
Except for D range position OFF
L RANGE IND L range position ON
Except for L range position OFF

DI-52< SERVICE INFORMATION >
WARNING CHIME
Check voltage between BCM harness connector and ground.
OK or NG OK >> Key switch and ignition knob switch signal is OK. Return
to DI-47, " Trouble Diagnosis " .
NG >> GO TO 3. 3.
CHECK KEY SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch and ignition knob switch connector.
3. Check continuity between key switch and ignition knob switch
terminals 1 and 2.
OK or NG OK >> GO TO 4.
NG >> Replace key switch and ignition knob switch. 4.
CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector (A) and key switch and ignition knob switch harness connector (B).
3. Check continuity between BCM harness connector (A) and ground.
OK or NG OK >> GO TO 5.
NG >> Repair harness or connector. 5.
CHECK KEY SWITCH PO WER SUPPLY CIRCUIT
Terminals
ConditionVoltage
(Approx.)
(+)
(− )
BCM
connector Terminal
M18 37 Ground Key is inserted Battery voltage
Key is removed 0 PKIC0721E
Terminals Condition Continuity
1 2 When key is inserted into ignition key cylinder Yes
When key is removed from ignition key cylinder No WKIA5466E
A B
Continuity
Connector Terminal Connector Terminal
M18 37 M73 1 Yes
A GroundContinuity
Connector Terminal
M18 37 No PKIC0723E

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CONTENTS
ENGINE CONTROL SYSTEM
HR16DE
BASIC INSPECTION ....... ............................
22
DIAGNOSIS AND REPAIR WORK FLOW .... ....22
Work Flow ........................................................... ....22
Diagnostic Work Sheet ........................................ ....25
INSPECTION AND ADJUSTMENT ................ ....26
BASIC INSPECTION ......... ........................................26
BASIC INSPECTION : Spec ial Repair Require-
ment .................................................................... ....
26
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ....
29
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ............................ ....
29
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .....
29
IDLE SPEED .......................................................... ....30
IDLE SPEED : Description ........................ ..............30
IDLE SPEED : Special R epair Requirement ...........30
IGNITION TIMING .................................................. ....30
IGNITION TIMING : Description .......................... ....30
IGNITION TIMING : Special Repair Requirement ....30
VIN REGISTRATION ............................................. ....30
VIN REGISTRATION : Description ..................... ....30
VIN REGISTRATION : Special Repair Require-
ment .................................................................... ....
31
ACCELERATOR PEDAL RE LEASED POSITION
LEARNING ............................................................ ....
31
ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Description ..................................... ....
31
ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Special Repair Requirement .......... ....
31
THROTTLE VALVE CLO SED POSITION LEARN-
ING ......................................................................... ....
31 THROTTLE VALVE CLOSED POSITION
LEARNING : Description ..................................... ....
31
THROTTLE VALVE CLOSED POSITION
LEARNING : Special Repai r Requirement ..............
31
IDLE AIR VOLUME LEARNING ............................ ....31
IDLE AIR VOLUME LEARNI NG : Description .........31
IDLE AIR VOLUME LEARNI NG : Special Repair
Requirement ........................................................ ....
32
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR ................................................................... ....
33
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Description ............................................ ....
33
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Special Repair Requirement ................. ....
33
FUNCTION DIAGNOSIS .. ............................35
ENGINE CONTRO L SYSTEM .......................... 35
System Diagram ................................................. ....35
System Description .............................................. ....36
Component Parts Location ................................ ....36
Component Description ....................................... ....40
MULTIPORT FUEL INJECTION SYSTEM ....... 42
System Diagram ................................................. ....42
System Description .............................................. ....42
Component Parts Location ................................ ....45
Component Description ....................................... ....49
ELECTRIC IGNITI ON SYSTEM ........................ 51
System Diagram ................................................. ....51
System Description .............................................. ....51
Component Parts Location ................................ ....52
Component Description ....................................... ....56
AIR CONDITIONING CUT CONTROL .............. 58
System Diagram .................................................. ....58
System Description .............................................. ....58
Component Parts Location ................................ ....59
Component Description ....................................... ....63

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Inspection ............................................................
..
500
ON-VEHICLE REPAIR .... ...........................502
EVAP CANISTER ........................................... ..502
Exploded View .................................................... ..502
Removal and Installation .......................................502
Inspection ............................................................ ..503
SERVICE DATA AND SPECIFICATIONS
(SDS) ......... ................................. ................504
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ..504
Idle Speed ........................................................... ..504
Ignition Timing ..................................................... ..504
Calculated Load Value ........................................ ..504
Mass Air Flow Sensor ......................................... ..504
MR TYPE 1
SERVICE INFOMATION .. ..........................505
APPLICATION NOTICE ................................. ..505
How to Check Vehicle Type ................................ ..505
INDEX FOR DTC ............................................ ..506
U1000-U1010 ...................................................... ..506
P0011-P0075 ...................................................... ..506
P0101-P0128 ...................................................... ..506
P0130-P0183 ...................................................... ..507
P0222-P0420 ...................................................... ..507
P0441-P0463 ...................................................... ..508
P0500-P0643 ...................................................... ..508
P0705-P0734 ...................................................... ..508
P0740-P0845 ...................................................... ..509
P0850-P1574 ...................................................... ..509
P1610-P1615 ...................................................... ..510
P1705-P1805 ...................................................... ..510
P2100-P2A00 ...................................................... ..510
PRECAUTIONS .............................................. ..512
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
512
Precaution for Procedure without Cowl Top Cover ..512
On Board Diagnosis (OBD) System of Engine and
A/T, CVT ............................................................. ..
512
Precaution ........................................................... ..513
PREPARATION .............................................. ..516
Special Service Tool ........................................... ..516
Commercial Service Tool .................................... ..516
ENGINE CONTROL SYSTEM ........................ ..518
Schematic ........................................................... ..518
Multiport Fuel Injection (MFI) System ................. ..518
Electronic Ignition (EI) System ............................ ..521
Fuel Cut Control (at No Load and High Engine
Speed) ................................................................. ..
521
AIR CONDITIONING CUT CONTROL ........... ..523 Input/Output Signal Chart ....................................
..523
System Description .............................................. ..523
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ............................................................ 524
System Description .............................................. ..524
Component Description ....................................... ..525
CAN COMMUNICATION ................................. 526
System Description .............................................. ..526
EVAPORATIVE EMISSION SYSTEM ............. 527
Description ........................................................... ..527
Component Inspection ......................................... ..529
Removal and Installation ..................................... ..531
How to Detect Fuel Vapor Leakage ..................... ..531
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) .................................................... 533
System Description .............................................. ..533
Diagnosis Procedure ........................................... ..533
Component Inspection ......................................... ..535
POSITIVE CRANKCASE VENTILATION ....... 538
Description ........................................................... ..538
Component Inspection ......................................... ..538
NVIS (NISSAN VEHICLE IMMOBILIZER SYS-
TEM-NATS) ..................................................... 540
Description ........................................................... ..540
ON BOARD DIAGNOSTIC (OBD) SYSTEM .. 541
Introduction .......................................................... ..541
Two Trip Detection Logic ..................................... ..541
Emission-related Diagnostic Information ............. ..542
Malfunction Indicator Lamp (MIL) ..........................557
OBD System Operation Chart ............................. ..560
BASIC SERVICE PROCEDURE ..................... 566
Basic Inspection .................................................. ..566
Idle Speed and Ignition Timing Check ................. ..570
Procedure After Replacing ECM ......................... ..571
VIN Registration .................................................. ..572
Accelerator Pedal Released Position Learning ... ..572
Throttle Valve Closed Position Learning ............. ..572
Idle Air Volume Learning ..................................... ..572
Fuel Pressure Check ........................................... ..574
TROUBLE DIAGNOSIS .................................. 577
Trouble Diagnosis Introduction ............................ ..577
DTC Inspection Priority Chart .............................. ..581
Fail-Safe Chart .................................................... ..582
Symptom Matrix Chart ......................................... ..583
Engine Control Component Parts Location ......... ..588
Vacuum Hose Drawing ........................................ ..594
Circuit Diagram .................................................... ..595
ECM Harness Connector Terminal Layout .......... ..597
ECM Terminal and Reference Value ................... ..597
CONSULT-III Function (ENGINE) ....................... ..604
Generic Scan Tool (GST) Function ..................... ..612

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DTC Confirmation Procedure ..............................
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940
Diagnosis Procedure ........................................... ..941
DTC P2122, P2123 APP SENSOR ................ ..942
Component Description ....................................... ..942
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... ..
942
On Board Diagnosis Logic .................................. ..942
DTC Confirmation Procedure .............................. ..942
Wiring Diagram ................................................... ..943
Diagnosis Procedure ........................................... ..944
Component Inspection ........................................ ..946
Removal and Installation .......................................946
DTC P2127, P2128 APP SENSOR ................ ..947
Component Description ....................................... ..947
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... ..
947
On Board Diagnosis Logic .................................. ..947
DTC Confirmation Procedure .............................. ..948
Wiring Diagram ................................................... ..949
Diagnosis Procedure ........................................... ..950
Component Inspection ........................................ ..952
Removal and Installation .......................................953
DTC P2135 TP SENSOR ............................... ..954
Component Description ....................................... ..954
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... ..
954
On Board Diagnosis Logic .................................. ..954
DTC Confirmation Procedure .............................. ..954
Wiring Diagram ................................................... ..955
Diagnosis Procedure ........................................... ..956
Component Inspection ........................................ ..958
Removal and Installation .......................................958
DTC P2138 APP SENSOR ............................. ..959
Component Description ....................................... ..959
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... ..
959
On Board Diagnosis Logic .................................. ..959
DTC Confirmation Procedure .............................. ..960
Wiring Diagram ................................................... ..961
Diagnosis Procedure ........................................... ..962
Component Inspection ........................................ ..965
Removal and Installation .......................................965
DTC P2A00 A/F SENSOR 1 ........................... ..966
Component Description ....................................... ..966
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... ..
966
On Board Diagnosis Logic .................................. ..966
DTC Confirmation Procedure .............................. ..966
Wiring Diagram ................................................... ..968
Diagnosis Procedure ........................................... ..969
Removal and Installation .......................................972
ASCD BRAKE SWITCH ................................. ..973
Component Description ....................................... ..973 CONSULT-III Reference Va
lue in Data Monitor
Mode .................................................................... ..
973
Wiring Diagram .................................................... ..974
Diagnosis Procedure ........................................... ..975
Component Inspection ......................................... ..979
ASCD INDICATOR .......................................... 981
Component Description ....................................... ..981
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ..
981
Wiring Diagram .................................................... ..982
Diagnosis Procedure ........................................... ..982
ELECTRICAL LOAD SIGNAL ........................ 984
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ..
984
Diagnosis Procedure ........................................... ..984
FUEL INJECTOR ............................................ 986
Component Description ....................................... ..986
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ..
986
Wiring Diagram .................................................... ..987
Diagnosis Procedure ........................................... ..988
Component Inspection ......................................... ..990
Removal and Installation ..................................... ..990
FUEL PUMP .................................................... 991
Description ........................................................... ..991
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ..
991
Wiring Diagram .................................................... ..992
Diagnosis Procedure ........................................... ..993
Component Inspection ......................................... ..995
Removal and Installation ..................................... ..995
IGNITION SIGNAL .......................................... 996
Component Description ....................................... ..996
Wiring Diagram .................................................... ..997
Diagnosis Procedure ........................................... 1000
Component Inspection ......................................... 1003
Removal and Installation ..................................... 1004
REFRIGERANT PRESSURE SENSOR ......... 1005
Component Description ....................................... 1005
Wiring Diagram .................................................... 1006
Diagnosis Procedure ........................................... 1007
Removal and Installation ..................................... 1009
MIL AND DATA LINK CONNECTOR ............ 1010
Wiring Diagram .................................................... 1010
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. 1012
Fuel Pressure ...................................................... 1012
Idle Speed and Ignition Timing ............................ 1012
Calculated Load Value ........................................ 1012
Mass Air Flow Sensor .......................................... 1012
Intake Air Temperature Sensor ........................... 1012
Engine Coolant Temperature Sensor .................. 1012
Air Fuel Ratio (A/F) Sensor 1 Heater ................... 1013

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SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. 1534
Fuel Pressure ...................................................... 1534
Idle Speed and Ignition Timing ............................ 1534
Calculated Load Value ........................................ 1534
Mass Air Flow Sensor ......................................... 1534
Intake Air Temperature Sensor ........................... 1534
Engine Coolant Temperature Sensor .................. 1534Air Fuel Ratio (A/F) Sensor 1 Heater ...................
1535
Heated Oxygen sensor 2 Heater ......................... 1535
Crankshaft Position Sensor (POS) ...................... 1535
Camshaft Position Sensor (PHASE) ................... 1535
Throttle Control Motor .......................................... 1535
Fuel Injector ......................................................... 1535
Fuel Pump ........................................................... 1535

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O Diagnostic Work
Sheet " .)
>> GO TO 2. Diagnosis Description " .)
- Study the relationship between the cause detected by DTC and the symptom described by the customer.
(Symptom Table is useful. Refer to EC-487, " Symptom Table " .)
3. Check related service bulletins for information.
Is any symptom described and is any DTC detected? Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5. Description " and
EC- 472, " Fail Safe " .
Diagnosis Work Sheet is useful to verify the incident.
Verify relation between the symptom and t he condition when the symptom is detected.
>> GO TO 5. Description " and
EC- 472, " Fail Safe " .
Diagnosis Work Sheet is useful to verify the incident.
Verify relation between the symptom and t he condition when the symptom is detected.
>> GO TO 6. DTC Inspection Priority Chart " and determine trouble
diagnosis order.
NOTE:
• Freeze frame data is useful if the DTC is not detected.
• Perform Component Function Check if DTC CONF IRMATION PROCEDURE is not included on Service
Manual. This simplified check procedure is an effect ive alternative though DTC cannot be detected during
this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-
MATION PROCEDURE.
Is DTC detected? YES >> GO TO 10.
NO >> Check Intermittent Incident according to EC-120, " Diagnosis Procedure " .
BASIC INSPECTION : Special Repair Requirement " .
Do you have CONSULT-III?

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O DTC Logic " .
• Check crankshaft position sensor (POS) and circuit. Refer to EC-263, " DTC Logic " .
Is the inspection result normal? YES >> GO TO 18.
NO >> Repair or replace. Then GO TO 4. ADDITIONAL SERVICE WHEN REPLACING CO
NTROL UNIT : Special Repair Requirement " .
>> GO TO 4. ADDITIONAL SERVICE
WHEN REPLACING CONTROL UNIT : Special Repair Requirement " .
>> INSPECTION END
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPL ACING CONTROL UNIT : Description
INFOID:0000000004779990
When replacing ECM, this procedure must be performed.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement INFOID:0000000004779991ECM Re-communicating Function " .
>> GO TO 2. VIN REGISTRATION : Special Repair Requirement " .
>> GO TO 3. ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Special Repair Requirement " .
>> GO TO 4. THROTTLE VALVE CLOSED POSITION L
EARNING : Special Repair Requirement " .
>> GO TO 5. IDLE AIR VOLUME LEARNING : Special Repair Requirement " .
>> END