ECU NISSAN TEANA 2008 Service Manual

EC-396
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
HO2S05HAir fuel ratio (A/F) sensor 1
(Bank 2)P0151 83H 0BHMinimum sensor output voltage for test
cycle
P0151 84H 0BHMaximum sensor output voltage for test
cycle
P0150 85H 0BHMinimum sensor output voltage for test
cycle
P0150 86H 0BHMaximum sensor output voltage for test
cycle
P0153 87H 04HResponse rate: Response ratio (Lean to
Rich)
P0153 88H 04HResponse rate: Response ratio (Rich to
Lean)
P2A03 89H 84H The amount of shift in air fuel ratio
P2A03 8AH 84H The amount of shift in air fuel ratio
P0150 8BH 0BH Difference in sensor output voltage
P0153 8CH 83H Response gain at the limited frequency
06HHeated oxygen sensor 2
(Bank 2)P0158 07H 0CHMinimum sensor output voltage for test
cycle
P0157 08H 0CHMaximum sensor output voltage for test
cycle
P0158 80H 0CH Sensor output voltage
P0159 81H 0CH Difference in sensor output voltage
07HHeated oxygen sensor 3
(Bank2)P0163 07H 0CHMinimum sensor output voltage for test
cycle
P0164 08H 0CHMaximum sensor output voltage for test
cycle
P0166 80H 0CH Sensor output voltage
P0165 81H 0CH Difference in sensor output voltage
CATA-
LYST21HThree way catalyst function
(Bank1)P0420 80H 01H O2 storage index
P0420 82H 01HSwitching time lag engine exhaust index
value
P2423 83H 0CHDifference in 3rd O2 sensor output volt-
age
P2423 84H 84H O2 storage index in HC trap catalyst
22HThree way catalyst function
(Bank2)P0430 80H 01H O2 storage index
P0430 82H 01HSwitching time lag engine exhaust index
value
P2424 83H 0CHDifference in 3rd O2 sensor output volt-
age
P2424 84H 84H O2 storage index in HC trap catalyst ItemOBD-
MIDSelf-diagnostic test item DTCTest value and
Te s t l i m i t
(GST display)
Description
TIDUnit and
Scaling
ID

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

EC-398
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
FUEL
SYSTEM81HFuel injection system function
(Bank 1)P0171 or P0172 80H 2FH Long-term fuel trim
P0171 or P0172 81H 24H The number of lambda control clamped
82HFuel injection system function
(Bank 2)P0174 or P0175 80H 2FH Long-term fuel trim
P0174 or P0175 81H 24H The number of lambda control clamped
MISFIRE A1H Multiple Cylinder MisfiresP0301 80H 24HMisfiring counter at 1000 revolution of
the first cylinder
P0302 81H 24HMisfiring counter at 1000 revolution of
the second cylinder
P0303 82H 24HMisfiring counter at 1000 revolution of
the third cylinder
P0304 83H 24HMisfiring counter at 1000 revolution of
the fourth cylinder
P0305 84H 24HMisfiring counter at 1000 revolution of
the fifth cylinder
P0306 85H 24HMisfiring counter at 1000 revolution of
the sixth cylinder
P0307 86H 24HMisfiring counter at 1000 revolution of
the seventh cylinder
P0308 87H 24HMisfiring counter at 1000 revolution of
the eighth cylinder
P0300 88H 24HMisfiring counter at 1000 revolution of
the multiple cylinders
P0301 89H 24HMisfiring counter at 200 revolution of the
first cylinder
P0302 8AH 24HMisfiring counter at 200 revolution of the
second cylinder
P0303 8BH 24HMisfiring counter at 200 revolution of the
third cylinder
P0304 8CH 24HMisfiring counter at 200 revolution of the
fourth cylinder
P0305 8DH 24HMisfiring counter at 200 revolution of the
fifth cylinder
P0306 8EH 24HMisfiring counter at 200 revolution of the
fifth cylinder
P0307 8FH 24HMisfiring counter at 200 revolution of the
fifth cylinder
P0308 90H 24HMisfiring counter at 200 revolution of the
fifth cylinder
P0300 91H 24HMisfiring counter at 1000 revolution of
the single cylinder
P0300 92H 24HMisfiring counter at 200 revolution of the
single cylinder
P0300 93H 24HMisfiring counter at 200 revolution of the
multiple cylinders ItemOBD-
MIDSelf-diagnostic test item DTCTest value and
Te s t l i m i t
(GST display)
Description
TIDUnit and
Scaling
ID

ECM
EC-399
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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MISFIREA2H No.1 Cylinder MisfireP0301 0BH 24HEWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0301 0CH 24HMisfire counts for last/current driving cy-
cles
A3H No.2 Cylinder MisfireP0302 0BH 24HEWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0302 0CH 24HMisfire counts for last/current driving cy-
cles
A4H No.3 Cylinder MisfireP0303 0BH 24HEWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0303 0CH 24HMisfire counts for last/current driving cy-
cles
A5H No.4 Cylinder MisfireP0304 0BH 24HEWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0304 0CH 24HMisfire counts for last/current driving cy-
cles
A6H No.5 Cylinder MisfireP0305 0BH 24HEWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0305 0CH 24HMisfire counts for last/current driving cy-
cles
A7H No.6 Cylinder MisfireP0306 0BH 24HEWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0306 0CH 24HMisfire counts for last/current driving cy-
cles
A8H No.7 Cylinder MisfireP0307 0BH 24HEWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0307 0CH 24HMisfire counts for last/current driving cy-
cles
A9H No.8 Cylinder MisfireP0308 0BH 24HEWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0308 0CH 24HMisfire counts for last/current driving cy-
cles ItemOBD-
MIDSelf-diagnostic test item DTCTest value and
Te s t l i m i t
(GST display)
Description
TIDUnit and
Scaling
ID

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-406
< PRECAUTION >[VQ25DE, VQ35DE]
PRECAUTIONS
CAUTION:
 Always turn the ignition switch OFF and disconnect the negative battery cable before any repair or
inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will cause
the MI to illuminate.
 Always connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to illuminate due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
 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-96, "
Description".
 Always to route and secure the harnesses properly after work. The interference of the harness with a
bracket, etc. may cause the MI to illuminate due to the short circuit.
 Always connect rubber tubes properly after work. A misconnected or disconnected rubber tube may
cause the MI to illuminate due to the malfunction of the EVAP system or fuel injection system, etc.
 Always erase the unnecessary malfunction information (repairs completed) from the ECM and TCM
(Transmission control module) before returning the vehicle to the customer.
General PrecautionsINFOID:0000000003856881
Always use a 12 volt battery as power source.
Never attempt to disconnect battery cables while engine is
running.
Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative bat-
tery cable. Failure to do so may damage the ECM because
battery voltage is applied to ECM even if ignition switch is
turned OFF.
Before removing parts, turn ignition switch OFF and then dis-
connect battery ground cable.
Never disassemble ECM.
If a battery cable is disconnected, the memory will return to the ECM value.
The ECM will now start to self-control at its initial value. Thus, engine operation can vary slightly in
this case. However, this is not an indication of a malfunction. Never replace parts because of a slight
variation.
If the battery is disconnected, the following emission-related diagnostic information will be lost
within 24 hours.
-Diagnostic trouble codes
-1st trip diagnostic trouble codes
-Freeze frame data
-1st trip freeze frame data
-System readiness test (SRT) codes
-Test values
When connecting ECM harness connector, fasten (B) it
securely with a lever (1) as far as it will go as shown in the fig-
ure.
SEF289H
2: ECM
A : Loosen
PBIB2947E

PRECAUTIONS
EC-407
< PRECAUTION >[VQ25DE, VQ35DE]
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When connecting or disconnecting pin connectors into or
from ECM, never damage pin terminals (bends or break).
Check that there are not any bends or breaks on ECM pin ter-
minal, when connecting pin connectors.
Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge) volt-
age to develop in coil and condenser, thus resulting in dam-
age to ICs.
Keep engine control system harness at least 10 cm (4 in) away
from adjacent harness, to prevent engine control system mal-
functions due to receiving external noise, degraded operation
of ICs, etc.
Keep engine control system parts and harness dry.
Before replacing ECM, perform ECM Terminals and Reference
Value inspection and check ECM functions properly. Refer to
EC-357, "
Reference Value".
Handle mass air flow sensor carefully to avoid damage.
Never clean mass air flow sensor with any type of detergent.
Never disassemble electric throttle control actuator.
Even a slight leak in the air intake system can cause serious
incidents.
Never shock or jar the camshaft position sensor (PHASE),
crankshaft position sensor (POS).
After performing each TROUBLE DIAGNOSIS, perform DTC
Confirmation Procedure or Component Function Check.
The DTC should not be displayed in the DTC Confirmation
Procedure if the repair is completed. The Component Func-
tion Check should be a good result if the repair is completed.
PBIB0090E
MEF040D
SAT652J

DRIVE BELT
EM-13
< ON-VEHICLE MAINTENANCE >
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3. Hold the hexagonal part in center of drive belt auto-tensioner
pulley with a box wrench securely. Then move the wrench han-
dle in the direction of arrow (loosening direction of drive belt).
CAUTION:
 Avoid placing hand in a location where pinching may
occur if the holding tool accidentally comes off.
 Never loosen the hexagonal part in center of drive belt
auto-tensioner pulley (Never turn it counterclockwise). If
turned counterclockwise, the complete drive belt auto-
tensioner must be replaced as a unit, including the pulley.
4. Insert a rod approximately 6 mm (0.24 in) in diameter such as
short-length screwdriver into the hole (A) of the retaining boss to
fix drive belt auto-tensioner pulley.
 Keep drive belt auto-tensioner pulley arm locked after drive belt is removed.
5. Loosen drive belt from water pump pulley in sequence, and remove it.
INSTALLATION
1. Hook drive belt on to all pulleys except for drive belt auto-tensioner pulley, and then onto drive belt auto-
tensioner pulley finally.
CAUTION:
 Confirm drive belt is completely set to pulleys.
 Check for engine oil, working fluid and engine coolant are not adhered to drive belt and each
pulley groove.
2. Release drive belt auto-tensioner, and apply tension to drive belt.
3. Turn crankshaft pulley clockwise several times to equalize tension between each pulley.
4. Confirm tension of drive belt at indicator is within the possible use range. Refer to EM-12, "
Exploded
View".
JPBIA1627ZZ

OIL PAN AND OIL STRAINER
EM-39
< ON-VEHICLE REPAIR >
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 Splash guard (RH and LH): Refer to EXT-22, "FENDER PROTECTOR : Exploded View".
 Exhaust front tube: Refer to EX-5, "
Exploded View".
 Drive belt: Refer to EM-12, "
Removal and Installation".
4. Remove A/C compressor with piping connected, and temporarily secure it to aside. Refer to HA-36,
"Exploded View".
5. Remove oil level gauge. Refer to EM-96, "
Exploded View".
6. Remove front drive shaft (RH). Refer to FAX-16, "
Exploded View".
7. Remove three way catalyst (bank 1 and bank 2) from exhaust manifolds (bank 1 and bank 2). Refer to
EM-34, "
Exploded View".
8. Remove oil pressure switch.
9. Remove oil filter. Refer to LU-10, "
Removal and Installation".
10. Remove oil cooler and water pipes. Refer to LU-11, "
Exploded View".
11. Support transaxle assembly with a suitable jack.
CAUTION:
When setting the transmission jack, be careful not to allow it to collide against the drain plug.
12. Support front suspension member with a suitable jack.
13. Remove engine mounting insulator (rear). Refer to EM-67, "
Exploded View".
14. Remove engine mounting insulator (LH) mounting bolts from transaxle. Refer to EM-67, "
Exploded View".
15. Remove rear torque rod through bolts from rear torque rod bracket. Refer to EM-67, "
Exploded View".
16. Remove member stay, front suspension member fixing bolts and nuts. Refer to FSU-16, "
Exploded View".
17. Lower the jack for the front suspension member to the height.
18. Remove oil pan (lower) as follows:
a. Loosen mounting bolts in reverse order as shown in the figure to
remove.
b. Insert the seal cutter [SST: KV10111100 (J37228)] (A) between
oil pan (upper) and oil pan (lower).
CAUTION:
 Be careful not to damage the mating surfaces.
 Never insert a screwdriver, this will damage the mating
surfaces.
c. Slide the seal cutter by tapping on the side of tool with a ham-
mer. Remove oil pan (lower).
19. Remove oil strainer.
PBIC0782E
JPBIA0276ZZ

FUEL INJECTOR AND FUEL TUBE
EM-47
< ON-VEHICLE REPAIR >
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 Upper and lower O-ring are different. Be careful not to confuse them.
 Handle O-ring with bare hands. Never wear gloves.
 Lubricate O-ring with new engine oil.
 Never clean O-ring with solvent.
 Check that O-ring and its mating part are free of foreign material.
 When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to
twist or stretch O-ring. If O-ring was stretched while it was being attached, never insert it quickly
into fuel tube.
 Insert O-ring straight into fuel injector. Never decenter or twist it.
3. Install fuel injector to fuel tube as follows:
a. Insert clip (3) into clip mounting groove (F) on fuel injector (5).
 Insert clip so that protrusion (E) of fuel injector matches cutout
(C) of clip.
CAUTION:
 Never reuse clip. Replace it with new one.
 Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector into fuel tube (1) with clip attached.
 Insert it while matching it to the axial center.
 Insert fuel injector so that protrusion (A) of fuel tube matches
cutout (B) of clip.
 Check that fuel tube flange (G) is securely fixed in flange fixing
groove (D) on clip.
c. Check that installation is complete by checking that fuel injector
does not rotate or come off.
 Check that protrusions of fuel injectors and fuel tubes are
aligned with cutouts of clips after installation.
4. Install fuel tube and fuel injector assembly to intake manifold.
CAUTION:
Be careful not to let tip of injector nozzle come in contact with other parts.
 Tighten mounting bolts in two steps in numerical order as
shown in the figure.
5. Connect fuel injector harness.
6. Install intake manifold collector. Refer to EM-28, "
Exploded View".
7. Connect quick connector between fuel feed hose and fuel tube connection with the following procedure:
a. Check no foreign substances are deposited in and around fuel tube and quick connector, and no damage
on them.
b. Thinly apply new engine oil around fuel tube from tip end to spool end.Fuel tube side : Black
Nozzle side : Green
2 : O-ring (black)
4 : O-ring (green)
JPBIA1959ZZ
: Engine front
1st step: 10.1 N·m (1.0 kg-m, 7 ft-lb)
2nd step: 22.0 N·m (2.2 kg-m, 16 ft-lb)
JPBIA1715ZZ