2008 NISSAN TIIDA Crank

PRECAUTIONS
AT-9
< SERVICE INFORMATION >
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• Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings and
seals, or hold bearings and washers in place during assembly. Do not use grease.
• Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
• Clean or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to
Refer to .
• After overhaul, refill the A/T with new ATF.
• When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque con-
verter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to
MA-22, "
Changing A/T Fluid", MA-22, "Checking A/T Fluid".
Service Notice or PrecautionINFOID:0000000001703155
ATF COOLER SERVICE
If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T oil cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. Check Service Bulletins for latest A/T oil cooler cleaning pro-
cedure. For radiator replacement, refer to Refer to CO-11
.
TORQUE CONVERTER SERVICE
The torque converter should be replaced under any of the following conditions:
• External leaks in the hub weld area.
• Converter hub is scored or damaged.
• Converter pilot is broken, damaged or fits poorly into crankshaft.
• Steel particles are found after flushing the cooler and cooler lines.
• Pump is damaged or steel particles are found in the converter.
• Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)
• Converter is contaminated with engine coolant containing antifreeze.
• Internal malfunction of stator roller clutch.
• Heavy clutch debris due to overheating (blue converter).
• Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged — indicates that lining material came from converter.
The torque converter should not be replaced if:
• The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.
• The threads in one or more of the converter bolt holes are damaged.
• A/T malfunction did not display evidence of damaged or worn internal parts, steel particles or clutch plate lin-
ing material in unit and inside the fluid filter.
• Vehicle has been exposed to high mileage (only). The exception may be where the torque converter clutch
dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic, such as
taxi, delivery or police use.
OBD-II SELF-DIAGNOSIS
• A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the OD OFF indicator lamp or the malfunction indicator lamp (MIL). Refer to the table
on AT-78, "
Diagnosis Procedure without CONSULT-III" for the indicator used to display each self-diagnostic
result.
• The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM memo-
ries.
Always perform the procedure “HOW TO ERASE DTC” on AT-36, "
OBD-II Diagnostic Trouble Code
(DTC)" to complete the repair and avoid unnecessary blinking of the MIL.
• The following self-diagnostic items can be detected using ECM self-diagnostic results mode* only when the
OD OFF indicator lamp does not indicate any malfunctions.
-PNP switch
- A/T 1st, 2nd, 3rd, or 4th gear function
*: For details of OBD-II, refer to AT- 3 6
.
•Certain systems and components, especially those related to OBD, may use a new style slide-lock-
ing type harness connector.
For description and how to disconnect, refer to PG-65
.

TRANSAXLE ASSEMBLY
AT-227
< SERVICE INFORMATION >
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2. Disconnect the following connectors and remove the wire har-
ness.
• Turbine revolution sensor (power train revolution sensor) har-
ness connector (1)
• Terminal cord assembly harness connector (2)
• PNP switch connector (3)
• Revolution sensor harness connector (4)
3. Remove the four drive plate to torque converter bolts.
NOTE:
Rotate the crankshaft clockwise as viewed from front of engine
for access to drive plate to torque converter bolts.
4. Put matching marks on the drive plate and torque converter.
CAUTION:
For matching marks, use paint. Never damage the drive plate or torque converter.
5. Remove the transaxle to engine and engine to transaxle bolts.
6. Separate the transaxle from the engine.
CAUTION:
Secure torque converter to prevent it from dropping.
7. If necessary, remove the following from the transaxle:
• Revolution sensor
• Turbine revolution sensor (powertrain revolution sensor)
• Fluid cooler tubes (1) and copper washers
• A/T fluid level gauge (2) and charging pipe (3)
• PNP switch
• Air breather hose
• Engine mounting bracket (LH)
• Any necessary brackets
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
WCIA0647E
WCIA0616E
WCIA0648E

AT-228
< SERVICE INFORMATION >
TRANSAXLE ASSEMBLY
• When replacing an engine or transmission you must make sure any dowels are installed correctly
during re-assembly.
• Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drive
train components.
• Do not reuse O-rings and copper washers. Refer to "COMPONENTS".
• When turning crankshaft, turn it clockwise as viewed from the front of the engine.
• When tightening the bolts for the torque converter while securing the crankshaft pulley bolt, be sure
to confirm the tightening torque of the crankshaft pulley bolt. Refer to EM-37
.
• After converter is installed to drive plate, rotate crankshaft several turns to check that transaxle
rotates freely without binding.
• When installing the torque converter to the transaxle measure dis-
tance A.
• Check the fitting of the dowel pins when installing the transaxle
assembly and the engine assembly.
: Dowel pin (2)
• When installing the transaxle to the engine, align the matching mark on the drive plate with the matching
mark on the torque converter.
• When securing the transaxle to the engine, attach the bolts in
accordance with the following standard.
(A): A/T to engine
(B): Engine to A/TDimension A: 14.4 mm (0.567 in) or more
SAT430D
SCIA7698E
Bolt No. 1 2
Number of bolts 2 7
Bolt length “L”
[mm (in)]55 (2.17) 50 (1.97)
Tightening torque
[N·m (kg-m, ft-lb)]62 (6.3, 46)
SCIA7685E

CVT-60
< SERVICE INFORMATION >
DTC P0615 START SIGNAL CIRCUIT
DTC P0615 START SIGNAL CIRCUIT
DescriptionINFOID:0000000001703476
• TCM controls starter relay in IPDM E/R.
• TCM switches starter relay ON at “P” or “N” position and allows to crank engine.
• Then it prohibits cranking other than at “P” or “N” position.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001703477
On Board Diagnosis LogicINFOID:0000000001703478
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0615 STARTER RELAY/CIRC” with CONSULT-III is detected when starter relay
switched ON other than at “P” or “N” position. (or when switched OFF at “P” or “N” position).
Possible CauseINFOID:0000000001703479
• Harness or connectors
(Starter relay and TCM circuit is open or shorted.)
• Starter relay
DTC Confirmation ProcedureINFOID:0000000001703480
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start engine.
4. Drive vehicle for at least 2 consecutive seconds.
5. If DTC is detected, go to CVT-62, "
Diagnosis Procedure" .
Item name Condition Display value
STRTR RLY OUTSelector lever in “P” and “N” positions ON
Selector lever in other positions OFF
STRTR RLY MONSelector lever in “P” and “N” positions ON
Selector lever in other positions OFF

TRANSAXLE ASSEMBLY
CVT-179
< SERVICE INFORMATION >
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4. Remove the four drive plate to torque converter nuts.
NOTE:
Rotate the crankshaft clockwise as viewed from front of engine
for access to drive plate to torque converter nuts.
5. Put matching marks on the drive plate and torque converter alignment stud.
CAUTION:
For matching marks, use paint. Never damage the drive plate or torque converter.
6. Remove the transaxle to engine and engine to transaxle bolts.
7. Separate the transaxle from the engine.
8. If necessary, remove the following from the transaxle:
• CVT fluid charging pipe
• Engine mounting bracket (LH)
• Fluid cooler tubes
• Air breather hose
• Any necessary brackets
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• When replacing an engine or transmission you must make sure any dowels are installed correctly
during re-assembly.
• Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drive
train components.
• Do not reuse O-rings and copper washers.
• When turning crankshaft, turn it clockwise as viewed from the front of the engine.
• When tightening the nuts for the torque converter while securing the crankshaft pulley bolt, be sure
to confirm the tightening torque of the crankshaft pulley bolt. Refer to EM-37
.
• After converter is installed to drive plate, rotate crankshaft several turns to check that transaxle
rotates freely without binding.
• When installing the torque converter to the transaxle measure dis-
tance A.
WCIA0616E
Distance A: 14.4 mm (0.57 in) or more
WCIA0617E

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-8
Engine Coolant Temperature Sensor ....................548
Air Fuel Ratio (A/F) Sensor 1 Heater .....................549
Heated Oxygen sensor 2 Heater ...........................549
Crankshaft Position Sensor (POS) ........................549
Camshaft Position Sensor (PHASE) .....................549
Throttle Control Motor ...........................................549
Fuel Injector ..........................................................549
Fuel Pump .............................................................549

EC-18
< SERVICE INFORMATION >
PRECAUTIONS
•Before replacing ECM, perform “ECM Terminals and Refer-
ence Value” inspection and make sure ECM functions prop-
erly. Refer to EC-102, "
ECM Terminal and Reference Value".
•Handle mass air flow sensor carefully to avoid damage.
•Do not disassemble mass air flow sensor.
•Do not clean mass air flow sensor with any type of detergent.
•Do not disassemble electric throttle control actuator.
•Even a slight leak in the air intake system can cause serious
incidents.
•Do not shock or jar the camshaft position sensor (PHASE),
crankshaft position sensor (POS).
•After performing each TROUBLE DIAGNOSIS, perform DTC
Confirmation Procedure or Overall Function Check.
The DTC should not be displayed in the DTC Confirmation
Procedure if the repair is completed. The Overall Function
Check should be a good result if the repair is completed.
•When measuring ECM signals with a circuit tester, never allow
the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
•Do not use ECM ground terminals when measuring input/out-
put voltage. Doing so may result in damage to the ECM's tran-
sistor. Use a ground other than ECM terminals, such as the
ground.
•Do not operate fuel pump when there is no fuel in lines.
•Tighten fuel hose clamps to the specified torque.
-Fuel level sensor unit and fuel pump (1)
-Fuel pressure regulator (2)
-Fuel level sensor (3)
-Fuel tank temperature sensor (4)
MEF040D
SEF217U
SEF348N
BBIA0704E