2008 NISSAN TIIDA Engine Control System

CVT-164
< SERVICE INFORMATION >
CVT SHIFT LOCK SYSTEM
•Selector lever can be moved from “P” position with ignition key in ON position and brake pedal
released.
•Selector lever can be moved from “P” position when ignition switch is removed from key cylinder.
SYMPTOM 2:
•Ignition key cannot be removed when selector lever is set to “P” position.
•Ignition key can be removed when selector lever is set to any position except “P” position.
1.CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK >> GO TO 2.
NG >> Repair key interlock cable. Refer to AT-213, "
Removal and Installation".
2.CHECK CVT POSITION
Check CVT position. Refer to CVT-171, "
Checking of CVT Position".
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable. Refer to CVT-171, "
Adjustment of CVT Position".
3.CHECK SHIFT LOCK SOLENOID AND PARK POSITION SWITCH
1. Turn ignition switch ON. (Do not start engine.)
2. Selector lever is set in “P” position.
3. Check operation sound.
OK or NG
OK >>INSPECTION END
NG - 1 >> With intelligent key: GO TO 4.
NG - 2 >> Without intelligent key: GO TO 5.
4.CHECK POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between CVT device harness connector terminal
5 and ground.
OK or NG
OK >> GO TO 8.
NG >> GO TO 6.
5.CHECK POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
Condition Brake pedal Operation sound
When ignition switch is turned to ON position and selector lever is set in
“P” position.Depressed Yes
Released No
Voltage:
Brake pedal depressed: Battery voltage
Brake pedal released: 0V
SCIA7934E

SHIFT CONTROL SYSTEM
CVT-171
< SERVICE INFORMATION >
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1. Set selector lever knob (1) in “N” position.
2. Slide knob cover (2) downward.
3. Pull out lock pin (3) from selector lever knob (1).
4. Remove selector lever knob (1) and knob cover (2) as a set from
selector lever.
CAUTION:
Do not push selector button.
INSTALLATION
1. Insert lock pin (1) to selector lever knob (2).
2. Install knob cover (3) to selector lever knob (2).
3. Set selector lever in “N” position.
4. Install selector lever knob over selector lever until a click is felt.
CAUTION:
• Do not tilt selector lever knob when installing. Install it
straight, and do not tap or apply any shock to install it.
• Do not push selector button.
Adjustment of CVT PositionINFOID:0000000001703682
CAUTION:
Make sure that parking brake is applied before adjustment.
1. Loosen the control cable nut (A) and place the manual lever (1)
in “P” position.
2. Place selector lever in “P” position.
3. Push the control cable (2) in with a load of 9.8 N (approximately
1 kg, 2.2 lb). Release the control cable and temporarily tighten
the control cable nut.
NOTE:
Do not move the manual lever. Make sure the manual lever
stays in the “P” position.
4. Tighten the control cable nut.
CAUTION:
Secure the manual lever when tightening nut.
5. Check the operation of the CVT. Refer to CVT-171, "
Checking of CVT Position".
Checking of CVT PositionINFOID:0000000001703683
1. Place selector lever in “P” position, and turn ignition switch ON. (Do not start engine.)
2. Make sure selector lever can be shifted to other than “P” position when brake pedal is depressed. Also
make sure selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move the selector lever and check for excessive effort, sticking, noise or rattle.
4. Confirm the selector lever stops at each position with the feel of engagement when it is moved through all
the positions. Check that the actual position of the selector lever matches the position shown by the shift
position indicator and the manual lever on the transaxle.
SCIA6971E
SCIA6972E
Control cable nut: Refer to CVT-167, "Removal
and Installation".
WCIA0608E

CVT-172
< SERVICE INFORMATION >
SHIFT CONTROL SYSTEM
5. The method of operating the selector lever to individual posi-
tions correctly should be as shown.
• (A): Press selector button to operate selector lever, while
depressing the brake pedal.
• (B): Press selector button to operate selector lever.
• (C): Selector lever can be operated without pressing selector
button.
6. Confirm the back-up lamps illuminate only when selector lever is
placed in the “R” position. Confirm the back-up lamps do not illu-
minate when the selector lever is pushed toward the “R” position
side with the gear position remained in the “P” or “N” position.
7. Confirm the engine can only be started with the selector lever in
the “P” and “N” positions.
8. Make sure transaxle is locked completely in “P” position.
WCIA0620E

COMBINATION METERS
DI-5
< SERVICE INFORMATION >
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SPEEDOMETER
With ABS
The ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via
CAN communication lines.
Without ABS or CVT
The vehicle speed sensor provides a vehicle speed signal to the combination meter for speedometer indica-
tion.
With CVT, Without ABS
The TCM provides a vehicle speed signal to the combination meter via CAN communication lines.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm). The ECM provides an engine speed
signal to combination meter via CAN communication lines.
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by the unified meter control unit and a variable resistor signal supplied
• to combination meter terminal 24
• through fuel level sensor unit and fuel pump terminal 5
• through fuel level sensor unit and fuel pump terminal 2
• from combination meter terminal 6.
ODO/TRIP METER
The vehicle speed signal and the memory signals from the meter memory circuit are processed by the combi-
nation meter and the mileage is displayed.
How to Change the Display
Refer to Owner's Manual for odo/trip meter operating instructions.
CAN COMMUNICATION SYSTEM DESCRIPTION
Refer to LAN-6 .
WKIA5370E
SKIB6904E

COMBINATION METERS
DI-11
< SERVICE INFORMATION >
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Self-Diagnosis Mode of Combination MeterINFOID:0000000001704497
SELF-DIAGNOSIS MODE FUNCTION
• Self-diagnosis can check for continuity between meter control circuit and each meter (speedometer, tachom-
eter and fuel gauge).
• Self-diagnosis can check for odo/trip meter and A/T indicator (with A/T) or CVT indicator (with CVT) seg-
ment, low-fuel level warning lamp, low water temperature indicator lamp, and high water temperature warn-
ing lamp.
OPERATION PROCEDURE
1. Turn the ignition switch ON, and switch the odo/trip meter to “trip A” or “trip B”.
NOTE:
13 B Illumination control switch (-) — — Refer to LT- 1 0 5 , "System Description" .
17 GWasher fluid level switch
(Canada models)ONWasher fluid level low 0
Washer fluid level normal Battery voltage
21
BGround — — 0 22
23
24 V Fuel level sensor ground (-) ON — 0
26 BVehicle speed sensor ground
(without ABS or CVT)ON — 0
27 G Battery power supply OFF — Battery voltage
28 SB Ignition switch ON or START ON — Battery voltage
29 GR Seat belt buckle switch RH ONUnfastened (ON) 0
Fastened (OFF) Battery voltage
30 G Stop lamp switch ONBrake pedal depressed Battery voltage
Brake pedal released 0
31 V A/T N-range input (with A/T) ONTransmission gear selector lever
in N positionBattery voltage
Transmission gear selector lever
other than N position0
32 W A/T P-range input (with A/T) ONTransmission gear selector lever
in P positionBattery voltage
Transmission gear selector lever
other than P position0
33 Y A/T PN output (with A/T) ONTransmission gear selector lever
in P or N position0
Transmission gear selector lever
other than P or N positionBattery voltage
35 BREngine coolant temperature
signal outputONAt idle [after warming up, approx.
80°C (176°F)]
NOTE:
The waveforms vary depending
on engine coolant temperature.
38 L Generator ONGenerator voltage low 0
Generator voltage normal Battery voltage Te r -
mi-
nal
No.Wire
colorItemCondition
Reference value (V)
(Approx.) Ignition
switchOperation or condition
SKIB3651J

COMBINATION METERS
DI-13
< SERVICE INFORMATION >
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CONSULT-III Function (METER/M&A)INFOID:0000000001704498
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
SELF-DIAGNOSTIC RESULTS
Display Item List
NOTE:
“TIME” indicates the following.
• 0: Indicates that a malfunction is detected at present.
• 1-63: Indicates that a malfunction was dectected in the past. (Displays number of ignition switch OFF → ON
cycles after malfunction is detected. Self-diagnostic result is erased when “63” is exceded.)
DATA MONITOR
Display Item List
METER diagnosis mode Description
SELF-DIAG RESULTS Displays combination meter self-diagnosis results.
DATA MONITOR Displays combination meter input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
CONSULT-III display Malfunction Reference page
CAN COMM CIRC [U1000]Malfunction is detected in CAN communication lines.
CAUTION:
Even when there is no malfunction on CAN communication system, mal-
function may be misinterpreted when battery has low voltage (when main-
taining 7 - 8 V for about 2 seconds) or 10A fuse [No. 14, located in the fuse
block (J/B)] is removed.DI-19
VEHICLE SPEED CIRC [B2205]Malfunction is detected when an erroneous speed signal is input.
CAUTION:
Even when there is no malfunction on speed signal system, malfunctions
may be misinterpreted when battery has low voltage (when maintaining 7
- 8 V for about 2 seconds).DI-16
Display item [Unit]MAIN
SIGNALSSELECTION
FROM MENUContents
SPEED METER [km/h] X XThe value of vehicle speed signal, which is input from ABS ac-
tuator and electric unit (control unit).
SPEED OUTPUT [km/h] X XThe value of vehicle speed signal, which is transmitted to each
unit with CAN communication.
TACHO METER [rpm] X X The value of engine speed signal, which is input from ECM.
W TEMP METER [°C] X XThe value of engine coolant temperature signal, which is input
from ECM.
FUEL METER [lit.] X XThe value, which processes a resistance signal from fuel
gauge.
DISTANCE [km] X XThe value, which is calculated by vehicle speed signal from
ABS actuator and electric unit (control unit), fuel gauge and fuel
consumption signal from ECM.
FUEL W/L [ON/OFF] X X Indicates [ON/OFF] condition of low-fuel warning lamp.
C-ENG W/L [ON/OFF] XIndicates [ON/OFF] condition of malfunction indicator lamp
(MIL).
AIR PRES W/L X Indicates [ON/OFF] condition of low tire pressure warning lamp.
SEAT BELT W/L X Indicates [ON/OFF] condition of seat belt warning lamp.
BUZZER [ON/OFF] X X Indicates [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF] X Indicates [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF] X Indicates [ON/OFF] condition of high beam indicator lamp.

EC-1
ENGINE
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SECTION EC
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CONTENTS
ENGINE CONTROL SYSTEM
SERVICE INFORMATION ............................9
INDEX FOR DTC .................................................9
DTC No. Index ..........................................................9
Alphabetical Index ...................................................12
PRECAUTIONS ..................................................16
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
16
Precaution for Procedure without Cowl Top Cover ....16
On Board Diagnosis (OBD) System of Engine and
A/T, CVT .................................................................
16
Precaution ...............................................................17
PREPARATION ..................................................20
Special Service Tool ...............................................20
Commercial Service Tool ........................................21
ENGINE CONTROL SYSTEM ............................22
Schematic ...............................................................22
Multiport Fuel Injection (MFI) System .....................22
Electronic Ignition (EI) System ................................25
Fuel Cut Control (at No Load and High Engine
Speed) .....................................................................
25
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 ............................................33
Removal and Installation .........................................35
How to Detect Fuel Vapor Leakage .........................35
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) ......................................................
38
System Description ..................................................38
Diagnosis Procedure ...............................................38
Component Inspection .............................................40
POSITIVE CRANKCASE VENTILATION .........43
Description ...............................................................43
Component Inspection .............................................43
NVIS (NISSAN VEHICLE IMMOBILIZER SYS-
TEM-NATS) .......................................................
45
Description ...............................................................45
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....46
Introduction ..............................................................46
Two Trip Detection Logic .........................................46
Emission-related Diagnostic Information .................47
Malfunction Indicator Lamp (MIL) ............................60
OBD System Operation Chart .................................63
BASIC SERVICE PROCEDURE .......................69
Basic Inspection ......................................................69
Idle Speed and Ignition Timing Check .....................73
Procedure After Replacing ECM .............................75
VIN Registration ......................................................75
Accelerator Pedal Released Position Learning .......76
Throttle Valve Closed Position Learning .................76
Idle Air Volume Learning .........................................76
Fuel Pressure Check ...............................................78
TROUBLE DIAGNOSIS ....................................81
Trouble Diagnosis Introduction ................................81
DTC Inspection Priority Chart ..................................86
Fail-Safe Chart ........................................................87
Symptom Matrix Chart .............................................88
Engine Control Component Parts Location .............93
Vacuum Hose Drawing ............................................99
Circuit Diagram ......................................................100
ECM Harness Connector Terminal Layout ............102

EC-6
Overall Function Check .........................................406
Wiring Diagram ......................................................407
Diagnosis Procedure .............................................408
DTC P1148 CLOSED LOOP CONTROL .........411
On Board Diagnosis Logic .....................................411
DTC P1217 ENGINE OVER TEMPERATURE .412
System Description ................................................412
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
413
On Board Diagnosis Logic .....................................413
Overall Function Check .........................................413
Wiring Diagram ......................................................416
Diagnosis Procedure .............................................417
Main 13 Causes of Overheating ............................424
Component Inspection ...........................................424
DTC P1225 TP SENSOR .................................426
Component Description .........................................426
On Board Diagnosis Logic .....................................426
DTC Confirmation Procedure ................................426
Diagnosis Procedure .............................................426
Removal and Installation .......................................427
DTC P1226 TP SENSOR .................................428
Component Description .........................................428
On Board Diagnosis Logic .....................................428
DTC Confirmation Procedure ................................428
Diagnosis Procedure .............................................428
Removal and Installation .......................................429
DTC P1421 COLD START CONTROL ............430
Description .............................................................430
On Board Diagnosis Logic .....................................430
DTC Confirmation Procedure ................................430
Diagnosis Procedure .............................................430
DTC P1564 ASCD STEERING SWITCH .........432
Component Description .........................................432
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
432
On Board Diagnosis Logic .....................................432
DTC Confirmation Procedure ................................433
Wiring Diagram ......................................................434
Diagnosis Procedure .............................................435
Component Inspection ...........................................437
DTC P1572 ASCD BRAKE SWITCH ..............438
Component Description .........................................438
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
438
On Board Diagnosis Logic .....................................438
DTC Confirmation Procedure ................................439
Wiring Diagram ......................................................440
Diagnosis Procedure .............................................441
Component Inspection ...........................................445
DTC P1574 ASCD VEHICLE SPEED SEN-
SOR ..................................................................
447
Component Description .........................................447
On Board Diagnosis Logic ....................................447
DTC Confirmation Procedure ................................447
Diagnosis Procedure .............................................448
DTC P1715 INPUT SPEED SENSOR (TUR-
BINE REVOLUTION SENSOR) ........................
449
Description ............................................................449
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
449
On Board Diagnosis Logic ....................................449
Diagnosis Procedure .............................................449
DTC P1715 INPUT SPEED SENSOR (PRIMA-
RY SPEED SENSOR) .......................................
450
Description ............................................................450
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
450
On Board Diagnosis Logic ....................................450
DTC Confirmation Procedure ................................450
Diagnosis Procedure .............................................451
DTC P1805 BRAKE SWITCH ..........................452
Description ............................................................452
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
452
On Board Diagnosis Logic ....................................452
DTC Confirmation Procedure ................................452
Wiring Diagram .....................................................453
Diagnosis Procedure .............................................454
Component Inspection ..........................................455
DTC P2100, P2103 THROTTLE CONTROL
MOTOR RELAY ................................................
456
Component Description ........................................456
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
456
On Board Diagnosis Logic ....................................456
DTC Confirmation Procedure ................................456
Wiring Diagram .....................................................458
Diagnosis Procedure .............................................459
DTC P2101 ELECTRIC THROTTLE CON-
TROL FUNCTION .............................................
461
Description ............................................................461
On Board Diagnosis Logic ....................................461
DTC Confirmation Procedure ................................461
Wiring Diagram .....................................................462
Diagnosis Procedure .............................................463
Component Inspection ..........................................466
Removal and Installation .......................................466
DTC P2118 THROTTLE CONTROL MOTOR ..467
Component Description ........................................467
On Board Diagnosis Logic ....................................467
DTC Confirmation Procedure ................................467
Wiring Diagram .....................................................468
Diagnosis Procedure .............................................469
Component Inspection ..........................................470
Removal and Installation .......................................470