engine control system NISSAN TIIDA 2009 Service Workshop Manual

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Diagnosis Procedure ...........................................
..
349
P0507 ISC SYSTEM ....................................... ..351
Description .......................................................... ..351
DTC Logic ........................................................... ..351
Diagnosis Procedure ........................................... ..351
P0603 ECM POWER SUPPLY ....................... ..353
Description .......................................................... ..353
DTC Logic ........................................................... ..353
Diagnosis Procedure ........................................... ..353
P0605 ECM ..................................................... ..355
Description .......................................................... ..355
DTC Logic ........................................................... ..355
Diagnosis Procedure ........................................... ..356
P0607 ECM ..................................................... ..357
Description .......................................................... ..357
DTC Logic ........................................................... ..357
Diagnosis Procedure ........................................... ..357
P0643 SENSOR POWER SUPPLY ............... ..358
DTC Logic ........................................................... ..358
Wiring Diagram ................................................... ..359
Diagnosis Procedure ........................................... ..359
P0850 PNP SWITCH ...................................... ..362
Description .......................................................... ..362
DTC Logic ........................................................... ..362
Component Function Check ................................ ..363
Wiring Diagram ................................................... ..364
Diagnosis Procedure ........................................... ..364
P1148 CLOSED LOOP CONTROL ................ ..367
DTC Logic ........................................................... ..367
P1217 ENGINE OVER TEMPERATURE ....... ..368
DTC Logic ........................................................... ..368
Component Function Check ................................ ..368
Diagnosis Procedure ........................................... ..369
P1225 TP SENSOR ........................................ ..372
Description .......................................................... ..372
DTC Logic ........................................................... ..372
Diagnosis Procedure ........................................... ..372
Special Repair Requirem ent .................................373
P1226 TP SENSOR ........................................ ..374
Description .......................................................... ..374
DTC Logic ........................................................... ..374
Diagnosis Procedure ........................................... ..374
Special Repair Requirem ent .................................375
P1421 COLD START CONTROL ................... ..376
Description .......................................................... ..376
DTC Logic ........................................................... ..376
Diagnosis Procedure ........................................... ..376
P1715 INPUT SPEED SENSOR (PRIMARY
SPEED SENSOR) .......................................... ..
378
Description .......................................................... ..378 DTC Logic ............................................................
..378
Diagnosis Procedure ........................................... ..378
P1805 BRAKE SWITCH ................................. 380
Description ........................................................... ..380
DTC Logic ............................................................ ..380
Wiring Diagram .................................................... ..381
Diagnosis Procedure ........................................... ..381
Component Inspection (Stop Lamp Switch) ........ ..383
P2100, P2103 THROTTLE CONTROL MO-
TOR RELAY .................................................... 384
Description ........................................................... ..384
DTC Logic ............................................................ ..384
Wiring Diagram .................................................... ..385
Diagnosis Procedure ........................................... ..385
P2101 ELECTRIC THROTTLE CONTROL
FUNCTION ....... ............................................... 388
Description ........................................................... ..388
DTC Logic ............................................................ ..388
Wiring Diagram .................................................... ..389
Diagnosis Procedure ........................................... ..389
Component Inspection ......................................... ..392
Special Repair Requiremen t ..................................392
P2118 THROTTLE CONTROL MOTOR ......... 393
Description ........................................................... ..393
DTC Logic ............................................................ ..393
Wiring Diagram .................................................... ..394
Diagnosis Procedure ........................................... ..394
Component Inspection ......................................... ..395
Special Repair Requiremen t ..................................396
P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR ..................................................... 397
Description ........................................................... ..397
DTC Logic ............................................................ ..397
Diagnosis Procedure ........................................... ..397
Special Repair Requiremen t ..................................398
P2122, P2123 APP SENSOR ......................... 399
Description ........................................................... ..399
DTC Logic ............................................................ ..399
Wiring Diagram .................................................... ..400
Diagnosis Procedure ........................................... ..400
Component Inspection ......................................... ..402
Special Repair Requiremen t ..................................402
P2127, P2128 APP SENSOR ......................... 403
Description ........................................................... ..403
DTC Logic ............................................................ ..403
Wiring Diagram .................................................... ..404
Diagnosis Procedure ........................................... ..404
Component Inspection ......................................... ..406
Special Repair Requiremen t ..................................407
P2135 TP SENSOR ......................................... 408
Description ........................................................... ..408
DTC Logic ............................................................ ..408

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Inspection ............................................................
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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 P0850 PNP SWITCH ..............................
1401
Component Description ....................................... 1401
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... 1401
On Board Diagnosis Logic .................................. 1401
DTC Confirmation Procedure .............................. 1401
Overall Function Check ....................................... 1402
Wiring Diagram ................................................... 1403
Diagnosis Procedure ........................................... 1404
DTC P1148 CLOSED LOOP CONTROL ....... 1407
On Board Diagnosis Logic .................................. 1407
DTC P1217 ENGINE OVER TEMPERATURE 1408
System Description ............................................. 1408
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... 1409
On Board Diagnosis Logic .................................. 1409
Overall Function Check ....................................... 1409
Wiring Diagram ................................................... 1411
Diagnosis Procedure ........................................... 1412
Main 13 Causes of Overheating .......................... 1415
Component Inspection ........................................ 1416
DTC P1225 TP SENSOR ............................... 1417
Component Description ....................................... 1417
On Board Diagnosis Logic .................................. 1417
DTC Confirmation Procedure .............................. 1417
Diagnosis Procedure ........................................... 1417
Removal and Installation .....................................1418
DTC P1226 TP SENSOR ............................... 1419
Component Description ....................................... 1419
On Board Diagnosis Logic .................................. 1419
DTC Confirmation Procedure .............................. 1419
Diagnosis Procedure ........................................... 1419
Removal and Installation .....................................1420
DTC P1421 COLD START CONTROL .......... 1421
Description .......................................................... 1421
On Board Diagnosis Logic .................................. 1421
DTC Confirmation Procedure .............................. 1421
Diagnosis Procedure ........................................... 1421
DTC P1564 ASCD STEERING SWITCH ....... 1423
Component Description ....................................... 1423
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... 1423
On Board Diagnosis Logic .................................. 1423
DTC Confirmation Procedure .............................. 1424
Wiring Diagram ................................................... 1425
Diagnosis Procedure ........................................... 1426
Component Inspection ........................................ 1428
DTC P1572 ASCD BRAKE SWITCH ............. 1429
Component Description ....................................... 1429
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... 1429
On Board Diagnosis Logic .................................. 1429
DTC Confirmation Procedure .............................. 1430Wiring Diagram ....................................................
1431
Diagnosis Procedure ........................................... 1432
Component Inspection ......................................... 1436
DTC P1574 ASCD VEH ICLE SPEED SEN-
SOR ................................................................ 1438
Component Description ....................................... 1438
On Board Diagnosis Logic ................................... 1438
DTC Confirmation Procedure .............................. 1438
Diagnosis Procedure ........................................... 1438
DTC P1715 INPUT SPEED SENSOR (TUR-
BINE REVOLUTION SENSOR) ..................... 1440
Description ........................................................... 1440
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... 1440
On Board Diagnosis Logic ................................... 1440
Diagnosis Procedure ........................................... 1440
DTC P1715 INPUT SPEED SENSOR (PRIMA-
RY SPEED SENSOR) ....................................
1441
Description ........................................................... 1441
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... 1441
On Board Diagnosis Logic ................................... 1441
DTC Confirmation Procedure .............................. 1441
Diagnosis Procedure ........................................... 1441
DTC P1805 BRAKE SWITCH ........................ 1443
Description ........................................................... 1443
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... 1443
On Board Diagnosis Logic ................................... 1443
DTC Confirmation Procedure .............................. 1443
Wiring Diagram .................................................... 1444
Diagnosis Procedure ........................................... 1445
Component Inspection ......................................... 1446
DTC P2100, P2103 THROTTLE CONTROL
MOTOR RELAY ............................................. 1447
Component Description ....................................... 1447
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... 1447
On Board Diagnosis Logic ................................... 1447
DTC Confirmation Procedure .............................. 1447
Wiring Diagram .................................................... 1448
Diagnosis Procedure ........................................... 1449
DTC P2101 ELECTRIC THROTTLE CON-
TROL FUNCTION .......................................... 1451
Description ........................................................... 1451
On Board Diagnosis Logic ................................... 1451
DTC Confirmation Procedure .............................. 1451
Wiring Diagram .................................................... 1452
Diagnosis Procedure ........................................... 1453
Component Inspection ......................................... 1456
Removal and Installation ..................................... 1456
DTC P2118 THROTTLE CONTROL MOTOR 1457
Component Description ....................................... 1457

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FUNCTION DIAGNOSIS
ENGINE CONTROL SYSTEM
System Diagram INFOID:0000000004780006

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Crankshaft position sensor (POS)
EC-263, " Description "
Cooling fan motor
EC-66, " System Description "
Electric throttle control actuator
EC-397, " Description "
Engine coolant temperature sensor
EC-167, " Description "
EVAP canister purge volume control solenoid valve
EC-291, " Description "
EVAP canister vent control valve
EC-301, " Description "
EVAP control system pressure sensor
EC-312, " Description "
Fuel injector
EC-430, " Description "
Fuel level sensor
EC-342, " Description "
Fuel pump
EC-434, " Description "
Fuel tank temperature sensor
EC-240, " Description "
Heated oxygen sensor 2
EC-204, " Description "
Heated oxygen sensor 2 heater
EC-140, " Description "
Ignition signal
EC-439, " Description "
Intake air temperature sensor
EC-162, " Description "
Intake valve timing control solenoid valve
EC-84, " System Description "
Knock sensor
EC-259, " Description "
Mass air flow sensor
EC-148, " Description "
Park/neutral position switch
EC-362, " Description "
PCV valve
EC-456, " Description "
Refrigerant pressure sensor
EC-457, " Description "
Stop lamp switch
EC-380, " Description "
Throttle control motor
EC-393, " Description "
Throttle control motor relay
EC-384, " Description "
Throttle position sensor
EC-171, " Description "Component Reference

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*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). T he amount of fuel injected is a program value in the
ECM memory. The program value is preset by engi ne operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from t he crankshaft position sensor (POS), camshaft position
sensor (PHASE) and the mass air flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION In addition, the amount of fuel injected is compens ated to improve engine performance under various operat-
ing conditions as listed below.

• During warm-up
• When starting the engine
• During acceleration
• Hot-engine operation
• When selector lever is changed from N to D (A/T models)
• High-load, high-speed operation

• During deceleration
• During high engine speed operation
MIXTURE RATIO FEEDBACK CONTROL (CLOSED LOOP CONTROL)
The mixture ratio feedback system prov ides the best air-fuel mixture ratio for driveability and emission control.
The three way catalyst (manifold) can better reduce CO, HC and NOx emissions. This system uses A/F sen-
sor 1 in the exhaust manifold to monitor whether the engine operation is rich or lean. The ECM adjusts the
injection pulse width according to the sensor voltage si gnal. For more information about A/F sensor 1, refer to
EC-182, " Description " . This maintains the mixture ratio within t
he range of stoichiometric (ideal air-fuel mix-
ture).
This stage is referred to as the closed loop control condition.
Heated oxygen sensor 2 is located downstream of the th ree way catalyst (manifold). Even if the switching
characteristics of A/F sensor 1 shift, the air-fuel rati o is controlled to stoichiometric by the signal from heated
oxygen sensor 2.
• Open Loop Control
The open loop system condition refers to when the EC M detects any of the following conditions. Feedback
control stops in order to maintain stabilized fuel combustion.
- Deceleration and acceleration
- High-load, high-speed operation
- Malfunction of A/F sensor 1 or its circuit
- Insufficient activation of A/F sensor 1 at low engine coolant temperature
- High engine coolant temperature
- During warm-up
- After shifting from N to D (A/T models)
- When starting the engine
MIXTURE RATIO SELF-LEARNING CONTROL The mixture ratio feedback control system monitors the mixture ratio signal transmitted from A/F sensor 1.
This feedback signal is then sent to the ECM. The ECM cont rols the basic mixture ratio as close to the theoret-
ical mixture ratio as possible. However, the basic mi xture ratio is not necessarily controlled as originally

MULTIPORT FUEL INJECTION SYSTEM
EC-45
< FUNCTION DIAGNOSIS >
[HR16DE] C
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Component Parts Location
INFOID:0000000004780012
1. Ignition coil (with power transistor) and spark plug 2. Intake valve timing control solenoid
valve 3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor (with intake air temperature sensor) 11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
13. EVAP canister purge volume control solenoid valve PBIB2939E

EC-46< FUNCTION DIAGNOSIS >
[HR16DE]
MULTIPORT FUEL INJECTION SYSTEM
1. Mass air flow sensor (with intake air temperature sensor) 2. Engine coolant temperature sensor 3. Electric throttle control actuator
4. Camshaft position sensor (PHASE) 5. Ignition coil (with power transistor) 6. Fuel injector
7. EVAP canister purge volume control solenoid valve
Vehicle front PBIB2940E

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ELECTRIC IGNITION SYSTEM
System Diagram INFOID:0000000004780014
System Description INFOID:0000000004780015
INPUT/OUTPUT SIGNAL CHART
*1: This signal is sent to the ECM via the CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION Ignition order: 1 - 3 - 4 - 2
The ignition timing is controlled by the ECM to maintain the best air-fuel ratio for every running condition of the
engine. The ignition timing data is stored in the ECM.
The ECM receives information such as the injecti on pulse width and camshaft position sensor (PHASE) sig-
nal. Computing this information, ignition si gnals are transmitted to the power transistor.
During the following conditions, the ignition timing is revi sed by the ECM according to the other data stored in
the ECM.
• At starting
• During warm-up
• At idle
• At low battery voltage
• During acceleration

EC-52< FUNCTION DIAGNOSIS >
[HR16DE]
ELECTRIC IGNITION SYSTEM
The knock sensor retard system is designed only for emergencies. The basic ignition timing is programmed
within the anti-knocking zone, if recommended fuel is used under dry conditions. The retard system does not
operate under normal driving conditions. If engine knocking occurs, the knock sensor monitors the condition.
The signal is transmitted to the ECM. The ECM retards the ignition timing to eliminate the knocking condition.
Component Parts Location INFOID:0000000004780016
1. Ignition coil (with power transistor) and spark plug 2. Intake valve timing control solenoid
valve 3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor (with intake air temperature sensor) 11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
13. EVAP canister purge volume control solenoid valve PBIB2939E