Condition NISSAN TEANA 2008 Service Manual

EC-388
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
DTC Inspection Priority Chart
INFOID:0000000003856871
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
P2119 Electric throttle control ac-
tuator(When electric throttle control actuator does not function properly due to the return spring
malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail-safe mode is not in specified range:)
ECM controls the electric throttle control actuator because of regulating the throttle open-
ing to 20 degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is being driver, it slows down gradually by fuel cut. After the vehicle
stops, the engine stalls.
The engine can restart in N or P position, and engine speed will not exceed 1,000 rpm or
more.
P2122
P2123
P2127
P2128
P2138Accelerator pedal position
sensorThe ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor. DTC No. Detected items Engine operating condition in fail-safe mode
Priority Detected items (DTC)
1  U1000 U1001 CAN communication line
 P0102 P0103 Mass air flow sensor
 P0112 P0113 Intake air temperature sensor
 P0117 P0118 Engine coolant temperature sensor
 P0122 P0123 P0222 P0223 P1225 P1226 P2135 Throttle position sensor
 P0327 P0328 P0332 P0333 Knock sensor
 P0335 Crankshaft position sensor (POS)
 P0340 P0345 Camshaft position sensor (PHASE)
 P0500 Vehicle speed sensor
 P0605 P0607 ECM
 P0643 Sensor power supply
 P0705 P0850 Park/Neutral position (PNP) switch
 P1550 P1551 P1552 P1553 P1554 Battery current sensor
 P1610 - P1615 NATS
 P1700 CVT control system
 P2122 P2123 P2127 P2128 P2138 Accelerator pedal position sensor

EC-392
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by ISO 15031-6.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: The troubleshooting for this DTC needs CONSULT-III.
*5: When the fail-safe operations for both self-diagnoses occur, the MI illuminates.
*6: When the ECM is in the mode that displays SRT status, MI may flash. For the details, refer to “How to Display SRT Status”.
How to Set SRT CodeINFOID:0000000003856873
To set all SRT codes, self-diagnosis for the items indicated above must be performed one or more times. Each
diagnosis may require a long period of actual driving under various conditions.
WITH CONSULT-III
Perform corresponding DTC Confirmation Procedure one by one based on Performance Priority in the table
on “SRT Item”.
WITHOUT CONSULT-III
The most efficient driving pattern in which SRT codes can be properly set is explained below. The driving pat-
tern should be performed one or more times to set all SRT codes.
STEP MOTR FNC P1778 1778 — 2×TM-100
VIAS S/V-1 P1800 1800 — 2 —EC-285
VIAS S/V-2 P1801 1801 — 2 —EC-288
BRAKE SW/CIRCUIT P1805 1805 — 2 —EC-291
ETC MOT PWR-B1 P2100 2100 — 1×EC-294
ETC FNCTN/CIRC-B1 P2101 2101 — 1×EC-296
ETC MOT PWR P2103 2103 — 1×EC-294
ETC MOT-B1 P2118 2118 — 1×EC-300
ETC ACTR-B1 P2119 2119 — 1×EC-302
APP SEN 1/CIRC P2122 2122 — 1×EC-304
APP SEN 1/CIRC P2123 2123 — 1×EC-304
APP SEN 2/CIRC P2127 2127 — 1×EC-307
APP SEN 2/CIRC P2128 2128 — 1×EC-307
TP SENSOR-B1 P2135 2135 — 1×EC-311
APP SENSOR P2138 2138 — 1×EC-314
A/F SENSOR1 (B1) P2A00 2A00 — 2×EC-318
A/F SENSOR1 (B2) P2A03 2A03 — 2×EC-318
Items
(CONSULT-III screen terms)DTC*
1
SRT code Trip MIReference
page CONSULT-III
GST*
2ECM*3

ECM
EC-393
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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DRIVING PATTERN
 The time required for each diagnosis varies with road surface conditions, weather, altitude, individual driving
habits, etc.
Zone A refers to the range where the time, required for the diagnosis under normal conditions*, is the short-
est.
Zone B refers to the range where the diagnosis can still be performed if the diagnosis is not completed within
zone A.
*: Normal conditions refer to the following:
PBIB3622E

EC-394
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
 Sea level
 Flat road
 Ambient air temperature: 20 - 30°C (68 - 86°F)
 Diagnosis is performed as quickly as possible under normal conditions.
Under different conditions [For example: ambient air temperature other than 20 - 30°C (68 - 86°F)], diagno-
sis may also be performed.
Pattern 1:
The engine is started at the engine coolant temperature of −10 to 35°C (14 to 95°F)
(where the voltage between the ECM terminal 46 and ground is 3.0 - 4.3 V).
The engine must be operated at idle speed until the engine coolant temperature is greater than 70°C
(158°F) (where the voltage between the ECM terminal 46 and ground is lower than 1.4 V).
The engine is started at the fuel tank temperature of warmer than 0°C (32°F) (where the voltage
between the ECM terminal 95 and ground is less than 4.1 V).
Pattern 2:
 When steady-state driving is performed again even after it is interrupted, each diagnosis can be conducted.
In this case, the time required for diagnosis may be extended.
Pattern 3:
 Operate vehicle following the driving pattern shown in the figure.
 Release the accelerator pedal during deceleration of vehicle speed
from 90 km/h (56 MPH) to 0 km/h (0 MPH).
Pattern 4:
 The accelerator pedal must be held very steady during steady-
state driving.
 If the accelerator pedal is moved, the test must be conducted
again.
*1: Depress the accelerator pedal until vehicle speed is 90 km/h (56
MPH), then release the accelerator pedal and keep it released for
more than 10 seconds. Depress the accelerator pedal until vehicle
speed is 90 km/h (56 MPH) again.
*2: Checking the vehicle speed with GST is advised.
Suggested Transmission Gear Position.
Selector lever position is D.
Test Value and Test LimitINFOID:0000000003856874
The following is the information specified in Service $06 of ISO 15031-5.
The test value is a parameter used to determine whether a system/circuit diagnostic test is OK or NG while
being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the
maximum or minimum value and is compared with the test value being monitored.
These data (test value and test limit) are specified by On Board Monitor ID (OBDMID), Test ID (TID), Unit and
Scaling ID and can be displayed on the GST screen.
The items of the test value and test limit will be displayed with GST screen which items are provided by the
ECM. (eg., if bank 2 is not applied on this vehicle, only the items of bank 1 is displayed)
PBIB2244E

ECM
EC-397
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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EGR
SYSTEM31H EGR functionP0400 80H 96HLow Flow Faults: EGR temp change
rate (short-term)
P0400 81H 96HLow Flow Faults: EGR temp change
rate (long-term)
P0400 82H 96HLow Flow Faults: Difference between
max EGR temp and EGR temp under
idling condition
P0400 83H 96H Low Flow Faults: Max EGR temp
P1402 84H 96HHigh Flow Faults: EGR temp increase
rate
EVAP
SYSTEM39HEVAP control system leak
(Cap Off)P0455 80H 0CHDifference in pressure sensor output
voltage before and after pull down
3BHEVAP control system leak
(Small leak)P0442 80H 05HLeak area index (for more than
0.04inch)
3CHEVAP control system
(Very small leak)P0456 80H 05HLeak area index (for more than
0.02inch)
P0456 81H FDHMaximum internal pressure of EVAP
system during monitoring
3DH Purge flow system P0441 83H 0CHDifference in pressure sensor output
voltage before and after vent control val-
ue close
O2 SEN-
SOR
HEATER41HA/F sensor 1 heater
(Bank 1)Low Input: P0031
High Input: P003281H 0BHConverted value of Heater electric cur-
rent to voltage
42HHeated oxygen sensor 2
(Bank 1)Low Input: P0037
High Input: P003880H 0CHConverted value of Heater electric cur-
rent to voltage
43HHeated oxygen sensor 3
(Bank 1)P0043 80H 0CHConverted value of Heater electric cur-
rent to voltage
45HA/F sensor 1 heater
(Bank 2)Low Input: P0051
High Input: P005281H 0BHConverted value of Heater electric cur-
rent to voltage
46HHeated oxygen sensor 2
(Bank 2)Low Input: P0057
High Input: P005880H 0CHConverted value of Heater electric cur-
rent to voltage
47HHeated oxygen sensor 3
(Bank 2)P0063 80H 0CHConverted value of Heater electric cur-
rent to voltage
SEC-
OND-
ARY AIR71H Secondary Air systemP0411 80H 01HSecondary Air Injection System Incor-
rect Flow Detected
Bank1: P0491
Bank2: P049281H 01HSecondary Air Injection System Insuffi-
cient Flow
P2445 82H 01HSecondary Air Injection System Pump
Stu c k O ff
P2448 83H 01HSecondary Air Injection System High
Airflow
Bank1: P2440
Bank2: P244284H 01HSecondary Air Injection System Switch-
ing Valve Stuck Open
P2440 85H 01HSecondary Air Injection System Switch-
ing Valve Stuck Open
P2444 86H 01HSecondary Air Injection System Pump
Stu c k O n ItemOBD-
MIDSelf-diagnostic test item DTCTest value and
Te s t l i m i t
(GST display)
Description
TIDUnit and
Scaling
ID

ENGINE CONTROL SYSTEM SYMPTOMS
EC-401
< SYMPTOM DIAGNOSIS >[VQ25DE, VQ35DE]
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1 - 6: The numbers refer to the order of inspection.
(continued on the next figure)
SYSTEM — ENGINE MECHANICAL & OTHER
Crankshaft position sensor (POS) circuit 2 2EC-218
Camshaft position sensor (PHASE) circuit 3 2EC-222
Vehicle speed signal circuit 2 3 3 3EC-234
Power steering pressure sensor circuit 2 3 3EC-236
ECM 22333333333EC-238,
EC-240
Intake valve timing control solenoid valve cir-
cuit32 13223 3EC-146
PNP signal circuit 3 3 3 3 3EC-245
VIAS control solenoid valve 1 circuit 1EC-285
VIAS control solenoid valve 2 circuit 1EC-288
Refrigerant pressure sensor circuit 2 3 3 4EC-348
Electrical load signal circuit 3EC-329
Air conditioner circuit 223333333 3 2HAC-159
ABS actuator and electric unit (control unit) 4BRC-80
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA

EC-404
< SYMPTOM DIAGNOSIS >[VQ25DE, VQ35DE]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000003856876
FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED)
If the engine speed is above 1,400 rpm under no load (for example, the selector lever position is P or N and
engine speed is over 1,400 rpm) fuel will be cut off after some time. The exact time when the fuel is cut off var-
ies based on engine speed.
Fuel cut will be operated until the engine speed reaches 1,000 rpm, then fuel cut will be cancelled.
NOTE:
This function is different from deceleration control listed under Multiport Fuel Injection (MFI) System, EC-27,
"System Description".

PRECAUTIONS
EC-405
< PRECAUTION >[VQ25DE, VQ35DE]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003960684
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.
Precautions For Xenon Headlamp ServiceINFOID:0000000003856878
WARNING:
Comply with the following warnings to prevent any serious accident.
 Disconnect the battery cable (negative terminal) or the power supply fuse before installing, remov-
ing, or touching the xenon headlamp (bulb included). The xenon headlamp contains high-voltage
generated parts.
 Never work with wet hands.
 Check the xenon headlamp ON-OFF status after assembling it to the vehicle. Never turn the xenon
headlamp ON in other conditions. Connect the power supply to the vehicle-side connector.
(Turning it ON outside the lamp case may cause fire or visual impairments.)
 Never touch the bulb glass immediately after turning it OFF. It is extremely hot.
CAUTION:
Comply with the following cautions to prevent any error and malfunction.
 Install the xenon bulb securely. (Insufficient bulb socket installation may melt the bulb, the connec-
tor, the housing, etc. by high-voltage leakage or corona discharge.)
 Never perform HID circuit inspection with a tester.
 Never touch the xenon bulb glass with hands. Never put oil and grease on it.
 Dispose of the used xenon bulb after packing it in thick vinyl without breaking it.
 Never wipe out dirt and contamination with organic solvent (thinner, gasoline, etc.).
Precaution for Procedure without Cowl Top CoverINFOID:0000000003856879
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnostic (OBD) System of Engine and CVTINFOID:0000000003856880
The ECM has an on board diagnostic system. It will illuminate the malfunction indicator MI to warn the driver of
a malfunction causing emission deterioration.
PIIB3706J

EC-410
< PREPARATION >[VQ25DE, VQ35DE]
PREPARATION
PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000003943273
Commercial Service ToolsINFOID:0000000003943274
Tool name Description
Fuel tube adapter Measuring fuel pressure
PBIB3043E
Tool name Description
Quick connector re-
leaseRemoves fuel tube quick connectors in engine
room
Socket wrench Removes and installing engine coolant tempera-
ture sensor
Oxygen sensor thread
cleanerReconditions the exhaust system threads before
installing a new oxygen sensor. Use with anti-
seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for Zirco-
nia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for Tita-
nia Oxygen Sensor
Anti-seize lubricant
i.e.: (Permatex
TM
133AR or equivalent
meeting MIL specifica-
tion MIL-A-907)Lubricates oxygen sensor thread cleaning tool
when reconditioning exhaust system threads.
PBIC0198E
S-NT705
AEM488
S-NT779

EC-414
< SERVICE DATA AND SPECIFICATIONS (SDS) [VQ25DE, VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Idle SpeedINFOID:0000000003856889
Ignition TimingINFOID:0000000003856890
Calculated Load ValueINFOID:0000000003856891
Mass Air Flow SensorINFOID:0000000003856892
*: Engine is warmed up to normal operating temperature and running under no load.Condition Specification
No load (in P or N position) 600 ± 50 rpm
Condition Specification
No load (in P or N position) 12 ± 5° BTDC
Condition Specification (Using CONSULT-III or GST)
At idle10 – 35 %
At 2,500 rpm10 – 35 %
Supply voltageBattery voltage (11 – 14 V)
Output voltage at idle (in N position) 0.9 – 1.2 V*
Mass air flow (Using CONSULT-III or GST)2.0 – 6.0 g·m/sec at idle*
7.0 – 20.0 g·m/sec at 2,500 rpm*