service NISSAN TEANA 2008 Repair Manual

DLK-4
PASSENGER SIDE : Diagnosis Procedure ..........162
TRUNK .....................................................................162
TRUNK : Description .............................................162
TRUNK : Diagnosis Procedure ..............................163
TRUNK LID DOES NOT OPEN WITH TRUNK
LID OPENER SWITCH ....................................
164
Description .............................................................164
Diagnosis Procedure .............................................164
TRUNK LID DOES NOT OPEN WITH INTEL-
LIGENT KEY ....................................................
165
Description .............................................................165
Diagnosis Procedure .............................................165
TRUNK LID DOES NOT OPEN WITH TRUNK
LID OPENER REQUEST SWITCH ..................
166
Description .............................................................166
Diagnosis Procedure .............................................166
HAZARD AND BUZZER REMINDER DOES
NOT OPERATE ...............................................
167
Description .............................................................167
Diagnosis Procedure .............................................167
KEY REMINDER FUNCTION DOES NOT OP-
ERATE .............................................................
168
Description .............................................................168
Diagnosis Procedure .............................................168
KEY WARNING DOES NOT OPERATE .........169
Description .............................................................169
Diagnosis Procedure .............................................169
OFF POSITION WARNING DOES NOT OP-
ERATE .............................................................
170
Description .............................................................170
Diagnosis Procedure .............................................170
P POSITION WARNING DOES NOT OPER-
ATE ..................................................................
171
Description .............................................................171
Diagnosis Procedure .............................................171
ACC WARNING DOES NOT OPERATE .........173
Description .............................................................173
Diagnosis Procedure .............................................173
TAKE AWAY WARNING DOES NOT OPER-
ATE ..................................................................
174
DOOR IS OPEN .......................................................174
DOOR IS OPEN : Description ...............................174
DOOR IS OPEN : Diagnosis Procedure ................174
ANY DOOR OPEN TO ALL DOORS CLOSED .......175
ANY DOOR OPEN TO ALL DOORS CLOSED :
Description .............................................................
175
ANY DOOR OPEN TO ALL DOORS CLOSED :
Diagnosis Procedure .............................................
175
PUSH-BUTTON IGNITION SWITCH OPERATION .175
PUSH-BUTTON IGNITION SWITCH OPERA-
TION : Description ................................................
176
PUSH-BUTTON IGNITION SWITCH OPERA-
TION : Diagnosis Procedure .................................
176
INTELLIGENT KEY IS REMOVED FROM KEY
SLOT .......................................................................
176
INTELLIGENT KEY IS REMOVED FROM KEY
SLOT : Description ................................................
176
INTELLIGENT KEY IS REMOVED FROM KEY
SLOT : Diagnosis Procedure ................................
177
INTELLIGENT KEY LOW BATTERY WARN-
ING DOES NOT OPERATE ..............................
178
Description ............................................................178
Diagnosis Procedure .............................................178
DOOR LOCK OPERATION WARNING DOES
NOT OPERATE WITH DOOR REQUEST
SWITCH ............................................................
179
Description ............................................................179
Diagnosis Procedure .............................................179
KEY ID WARNING DOES NOT OPERATE .....180
Description ............................................................180
Diagnosis Procedure .............................................180
INTELLIGENT KEY LOW BATTERY WARN-
ING DOES NOT OPERATE ..............................
181
Description ............................................................181
Diagnosis Procedure .............................................181
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ..............................................................
182
Work Flow .............................................................182
Inspection Procedure ............................................184
Diagnostic Worksheet ...........................................186
PRECAUTION ...........................................188
PRECAUTIONS ................................................188
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
188
Precaution for Procedure without Cowl Top Cover .188
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .................................
188
Work ......................................................................189
PREPARATION .........................................190
PREPARATION ................................................190
Commercial Service Tools ....................................190
ON-VEHICLE REPAIR ..............................191
HOOD ...............................................................191
HOOD ASSEMBLY .................................................191
HOOD ASSEMBLY : Exploded View ....................191

DLK-8
< BASIC INSPECTION >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
1.GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred).
>> GO TO 2.
2.CHECK DTC
1. Check DTC for BCM.
2. Perform the following procedure if DTC is displayed.
- Record DTC and freeze frame data (print them out with CONSULT-III).
- Erase DTC.
- Study the relationship between the cause detected by DTC and the symptom described by the customer.
3. Check related service bulletins for information.
Is any symptom described and any DTC detected?
Symptom is described, DTC is displayed>>GO TO 3.
Symptom is described, DTC is not displayed>>GO TO 4.
Symptom is not described, DTC is displayed>>GO TO 5.
3.CONFIRM THE SYMPTOM
Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle in “DATA MONITOR” mode and check real time diagnosis results.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 5.
4.CONFIRM THE SYMPTOM
Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle in “DATA MONITOR” mode and check real time diagnosis results.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 6.
5.PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC Confirmation Procedure for the displayed DTC, and then check that DTC is detected again.
At this time, always connect CONSULT-III to the vehicle, and check diagnostic results in real time.
If two or more DTCs are detected, refer to DLK-152, "
DTCInspectionPriorityChart" (BCM) determine trou-
ble diagnosis order.
NOTE:
Perform Component Function Check if DTC Confirmation Procedure is not included in Service Manual. This
simplified check procedure is an effective 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 Confirmation
Procedure.
Is DTC detected?
YES >> GO TO 7.
NO >> Refer to GI-35, "
Intermittent Incident".
6.DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS
Detect malfunctioning system according to SYMPTOM DIAGNOSIS based on the confirmed symptom in step
4, and determine the trouble diagnosis order based on possible causes and symptom.
>> GO TO 7.
7.DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
NOTE:
The Diagnostic Procedure described based on open circuit inspection. A short circuit inspection is also
required for the circuit check in the Diagnostic Procedure.

DLK-10
< BASIC INSPECTION >[WITH INTELLIGENT KEY SYSTEM]
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
INFOID:0000000003794732
Perform the system initialization when replacing BCM, replacing Intelligent Key or registering an additional
Intelligent Key.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000003794733
Refer to the CONSULT-III operation manual for the initialization procedure.

DLK-182
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
SQUEAK AND RATTLE TROUBLE DIAGNOSES
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work FlowINFOID:0000000003941377
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist when the noise occurs. Use the Diag-
nostic Worksheet during the interview to document the facts and conditions when the noise occurs and any of
the customer's comments; refer to DLK-186, "
Diagnostic Worksheet". This information is necessary to dupli-
cate the conditions that exist when the noise occurs.
 The customer may not be able to provide a detailed description or the location of the noise. Attempt to obtain
all the facts and conditions that exist when the noise occurs (or does not occur).
 If there is more than one noise in the vehicle, be sure to diagnose and repair the noise that the customer is
concerned about. This can be accomplished by a test drive with the customer.
 After identifying the type of noise, isolate the noise in terms of its characteristics. The noise characteristics
are provided so the customer, service adviser and technician are all speaking the same language when
defining the noise.
 Squeak – (Like tennis shoes on a clean floor)
Squeak characteristics include the light contact/fast movement/brought on by road conditions/hard surfaces
= higher pitch noise/softer surfaces = lower pitch noises/edge to surface = chirping
 Creak – (Like walking on an old wooden floor)
Creak characteristics include firm contact/slow movement/twisting with a rotational movement/pitch depen-
dent on materials/often brought on by activity.
 Rattle – (Like shaking a baby rattle)
Rattle characteristics include the fast repeated contact/vibration or similar movement/loose parts/missing
clip or fastener/incorrect clearance.
 Knock – (Like a knock on a door)
Knock characteristics include hollow sounding/sometimes repeating/often brought on by driver action.
 Tick – (Like a clock second hand)
Tick characteristics include gentle contacting of light materials/loose components/can be caused by driver
action or road conditions.
 Thump – (Heavy, muffled knock noise)
Thump characteristics include softer knock/dead sound often brought on by activity.
 Buzz – (Like a bumble bee)
Buzz characteristics include high frequency rattle/firm contact.
 Often the degree of acceptable noise level will vary depending upon the person. A noise that a technician
may judge as acceptable may be very irritating to the customer.
 Weather conditions, especially humidity and temperature, may have a great effect on noise level.
DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when the repair is reconfirmed.
SBT842

DLK-188
< PRECAUTION >[WITH INTELLIGENT KEY SYSTEM]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003941991
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIRBAG” and
“SEAT BELT” of this Service Manual.
WARNING:
 To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
 Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
Precaution for Procedure without Cowl Top CoverINFOID:0000000003795058
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
INFOID:0000000003845516
NOTE:
 Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
This vehicle is equipped with a push-button ignition switch and a steering lock unit.
If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure
below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
PIIB3706J

DLK-190
< PREPARATION >[WITH INTELLIGENT KEY SYSTEM]
PREPARATION
PREPARATION
PREPARATION
Commercial Service ToolsINFOID:0000000003795062
Tool name Description
Engine ear Locating the noise
Remover tool Removes the clips, pawls, and metal clips
Power tool
SIIA0995E
PIIB7923J
PIIB1407E

EC-1
ENGINE
C
DE
F
G H
I
J
K L
M
SECTION EC
A
EC
N
O P
CONTENTS
ENGINE CONTROL SYSTEM
VQ25DE, VQ35DE
BASIC INSPECTION ....... .............................
7
DIAGNOSIS AND REPAIR WORKFLOW ..... .....7
Work Flow ........................................................... ......7
Diagnostic Work Sheet ............................................10
INSPECTION AND ADJUSTMENT ....................11
BASIC INSPECTION ......... ........................................11
BASIC INSPECTION : Special Repair Require-
ment .................................................................... ....
11
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ....
14
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ................................
14
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .....
14
IDLE SPEED .......................................................... ....14
IDLE SPEED : Description ........................ ..............14
IDLE SPEED : Special R epair Requirement ...........14
IGNITION TIMING .................................................. ....15
IGNITION TIMING : Description ..............................15
IGNITION TIMING : Special Repair Requirement ....15
ACCELERATOR PEDAL RELEASED POSITION
LEARNING ............................................................ ....
15
ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Description .........................................
15
ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Special Repair Requirement ..............
15
THROTTLE VALVE CLOSED POSITION LEARN-
ING ......................................................................... ....
16
THROTTLE VALVE CLOSED POSITION
LEARNING : Description .........................................
16
THROTTLE VALVE CLOSED POSITION
LEARNING : Special Repair Requirement ..............
16
IDLE AIR VOLUME LEARNING ............................ ....16
IDLE AIR VOLUME LEARNING : Description .........16
IDLE AIR VOLUME LEARNI NG : Special Repair
Requirement ........................................................ ....
16
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR ................................................................... ....
18
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Description ................................................
18
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Special Repair Requirement .....................
18
FUNCTION DIAGNOSIS ..............................19
ENGINE CONTRO L SYSTEM ..........................19
System Diagram ................................................. ....19
System Description ..................................................20
Component Parts Location ....................................20
Component Description ...........................................25
MULTIPORT FUEL INJECTION SYSTEM .......27
System Diagram .....................................................27
System Description ..................................................27
Component Parts Location ....................................31
Component Description ...........................................36
ELECTRIC IGNITION SYSTEM ........................37
System Diagram .....................................................37
System Description ..................................................37
Component Parts Location ....................................38
Component Description ...........................................43
AIR CONDITIONING CUT CONTROL ..............44
System Diagram ......................................................44
System Description ..................................................44
Component Parts Location ....................................45
Component Description ...........................................50
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ..............................................................
51
System Diagram ......................................................51
System Description ..................................................51

EC-6
Description .............................................................404
PRECAUTION ............................................405
PRECAUTIONS ...............................................405
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ................................................................
405
Precautions For Xenon Headlamp Service ...........405
Precaution for Procedure without Cowl Top Cover ..405
On Board Diagnostic (OBD) System of Engine
and CVT ................................................................
405
General Precautions ..............................................406
PREPARATION ..........................................410
PREPARATION ...............................................410
Special Service Tools ............................................410
Commercial Service Tools .....................................410
ON-VEHICLE MAINTENANCE .................411
FUEL PRESSURE ............................................411
Inspection ..............................................................411
ON-VEHICLE REPAIR ..............................413
EVAPORATIVE EMISSION SYSTEM ..............413
Inspection ..............................................................413
SERVICE DATA AND SPECIFICATIONS
(SDS) .........................................................
414
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
414
Idle Speed .............................................................414
Ignition Timing .......................................................414
Calculated Load Value ..........................................414
Mass Air Flow Sensor ...........................................414

EC-8
< BASIC INSPECTION >[VQ25DE, VQ35DE]
DIAGNOSIS AND REPAIR WORKFLOW
1.GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred) using the “Diagnostic Work Sheet”. (Refer to EC-10, "
Diagnostic Work
Sheet".)
>> GO TO 2.
2.CHECK DTC
1. Check DTC.
2. Perform the following procedure if DTC is displayed.
- Record DTC and freeze frame data. (Print them out with CONSULT-III or GST.)
- Erase DTC. (Refer to EC-102, "
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-400, "
Symptom Table".)
3. Check related service bulletins for information.
Are any symptoms described and any DTCs detected?
Symptom is described, DTC is displayed>>GO TO 3.
Symptom is described, DTC is not displayed>>GO TO 4.
Symptom is not described, DTC is displayed>>GO TO 5.
3.CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer (except MI ON).
Also study the normal operation and fail-safe related to the symptom. Refer to EC-404, "
Description" and EC-
386, "Fail safe".
Diagnosis Work Sheet is useful to verify the incident.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 5.
4.CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom. Refer to EC-404, "
Description" and EC-
386, "Fail safe".
Diagnosis Work Sheet is useful to verify the incident.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 6.
5.PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC CONFIRMATION PROCEDURE for the displayed DTC, and then check that DTC is detected
again.
If two or more DTCs are detected, refer to EC-388, "
DTCInspectionPriorityChart" and determine trouble
diagnosis order.
NOTE:
 Freeze frame data is useful if the DTC is not detected.
 Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service
Manual. This simplified check procedure is an effective 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 according to GI-35, "
Intermittent Incident".
6.PERFORM BASIC INSPECTION
Perform EC-11, "
BASIC INSPECTION : Special Repair Requirement".
Will CONSULT-III be used?

INSPECTION AND ADJUSTMENT
EC-11
< BASIC INSPECTION >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
INSPECTION AND ADJUSTMENT
BASIC INSPECTION
BASIC INSPECTION : Special Repair RequirementINFOID:0000000003856444
1.INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for
scheduled maintenance.
2. Open engine hood and check the following:
- Harness connectors for improper connections
- Wiring harness for improper connections, pinches and cut
- Vacuum hoses for splits, kinks and improper connections
- Hoses and ducts for leaks
- Air cleaner clogging
- Gasket
3. Confirm that electrical or mechanical loads are not applied.
- Head lamp switch is OFF.
- Air conditioner switch is OFF.
- Rear window defogger switch is OFF.
- Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no
load.
6. Check that no DTC is displayed with CONSULT-III or GST.
Are any DTCs detected?
YES >> GO TO 2.
NO >> GO TO 3.
2.REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3
3.CHECK TARGET IDLE SPEED
1. Run engine at about 2,000 rpm for about 2 minutes under no load.
SEF983U
SEF976U
SEF977U