Ccu NISSAN TEANA 2008 Service Manual

MIR-6
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
SYMPTOM DIAGNOSIS
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work FlowINFOID:0000000003941382
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 MIR-10, "
Diagnostic Worksheet". This information is necessary to duplicate
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
SBT842

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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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.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-clutch on M/T model, drive position on A/T model).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.
 Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.
 If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool
(Engine Ear or mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:
 Removing the components in the area that is are suspected to be the cause of the noise.
Do not use too much force when removing clips and fasteners, otherwise clips and fastener can be broken
or lost during the repair, resulting in the creation of new noise.
 Tapping or pushing/pulling the component that is are suspected to be the cause of the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only tem-
porarily.
 Feeling for a vibration by hand by touching the component(s) that is are suspected to be the cause of the
noise.
 Placing a piece of paper between components that is are suspected to be the cause of the noise.
 Looking for loose components and contact marks.
Refer to MIR-8, "
Inspection Procedure".
REPAIR THE CAUSE
 If the cause is a loose component, tighten the component securely.
 If the cause is insufficient clearance between components:
- Separate components by repositioning or loosening and retightening the component, if possible.
- Insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape. These insulators are available through the authorized Nissan Parts Department.
CAUTION:
Never use excessive force as many components are constructed of plastic and may be damaged.
NOTE:
 URETHANE PADS
Insulates connectors, harness, etc.
 INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
 INSULATOR (Light foam block)
 FELT CLOTHTAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
The following materials, not available through NISSAN Parts Department, can also be used to repair
squeaks and rattles.
 UHMW(TEFLON) TAPE
Insulates where slight movement is present. Ideal for instrument panel applications.
 SILICONE GREASE
Used in place of UHMW tape that is be visible or does not fit.
Note: Will only last a few months.
 SILICONE SPRAY
Used when grease cannot be applied.
 DUCT TAPE
Used to eliminate movement.
CONFIRM THE REPAIR

MIR-8
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Inspection ProcedureINFOID:0000000003941383
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. Cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicon spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Never use silicone spray to isolate a squeak or rattle. If the area is saturated with silicone, the recheck
of repair becomes impossible.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation procedures also apply to the center console.
DOORS
Pay attention to the following:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. The areas can usually be insulated with felt cloth tape or insulator foam blocks to
repair the noise.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the customer.
In addition look for the following:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. Trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it is important to note the position the seat is in and the load placed on the seat
when the noise occurs. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.

MIR-12
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003815741
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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
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”.
 Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

MWI-4
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work flowINFOID:0000000003792506
OVERALL SEQUENCE
• Reference 1···MWI-32, "Diagnosis Description".
 Reference 2···MWI-67, "
DTC Index".
 Reference 3···MWI-42, "
COMBINATION METER : Diagnosis Procedure".
DETAILED FLOW
1.OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much information as possible about the conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2.CHECK SYMPTOM
JSNIA0542GB

MWI
METER SYSTEM
MWI-7
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System Description Signal source
Meter/gaugeSpeedometer Receives vehicle speed signal and indicates vehicle speed.ABS actuator and elec-
tric unit (control unit)
Tachometer Receives engine speed signal and indicates engine speed. ECM
Fuel gauge Receives fuel level sensor signal and indicates fuel level. Fuel level sensor unit
Engine coolant tem-
perature gaugeReceives engine coolant temperature signal and indicates coolant
temperature.ECM
Warning lamp/
indicator lampOil pressure warning
lampReceives oil pressure warning lamp signal and illuminates warning
lamp.IPDM E/R
Master warning Illuminates according to warning output on information display. —
Information
displayDoor open warning Receives door switch signals and displays warning. BCM
Trunk open warning Receives trunk switch signals and displays warning. BCM
Parking brake re-
lease warningReceives parking brake switch signal and vehicle speed signal and
displays warnings.Parking brake switch
ABS actuator and elec-
tric unit (control unit)
Low fuel warningReceives fuel gauge signal and displays warning if fuel level de-
creases to 11 (2-2/5 Imp gal) or less.Fuel level sensor unit
Low outside tempera-
ture warningMonitors ambient sensor signal and displays warning if ambient
temperature decreases to 3°C (37°F) or less. (If enabled)Ambient sensor
Instantaneous fuel
consumptionCalculates instantaneous fuel consumption based on received ve-
hicle speed signals and fuel consumption monitor signal and dis-
plays it.ECM
ABS actuator and elec-
tric unit (control unit)
Average fuel con-
sumptionCalculates average fuel consumption in a reset-to-reset interval
based on received vehicle speed signals and fuel consumption
monitor signal and displays it.ECM
ABS actuator and elec-
tric unit (control unit)
Average vehicle
speedCalculates average vehicle speed in a reset-to-reset interval based
on received vehicle speed signals and displays it.ABS actuator and elec-
tric unit (control unit)
Travel time Displays accumulated key switch ON time from reset to reset. —
Travel distanceCalculates accumulated travel distance in a reset-to-reset interval
based on received vehicle speed signals and displays it.ABS actuator and elec-
tric unit (control unit)
Possible driving dis-
tanceCalculates possible driving distance based on received fuel con-
sumption monitor signal, vehicle speed signals and fuel level sen-
sor signal and displays it.ABS actuator and elec-
tric unit (control unit)
ECM
Fuel level sensor unit
Ambient air tempera-
tureCorrects ambient air temperature value based on received ambient
sensor signals and displays it.Ambient sensor

MWI-18
< FUNCTION DIAGNOSIS >
METER SYSTEM
FUEL GAUGE : Component Description
INFOID:0000000003792526
ODO/TRIP METER
ODO/TRIP METER : System DiagramINFOID:0000000003792527
ODO/TRIP METER : System DescriptionINFOID:0000000003792528
 The ABS actuator and electric unit (control unit) reads the rectangular wave signal provided by the wheel
sensor and transmits the vehicle speed signal to the combination meter via CAN communication.
 The combination meter converts the vehicle speed signal received via CAN communication to mileage, and
it displays the accumulated mileage to the odo/trip meter.
D. Front bumper (left back) E. Engine room (LH) F. Behind the combination meter
G. Lower left side of rear seat
Unit Description
Combination meterIndicates the fuel gauge according to the fuel level sensor signal received from the fuel level sensor
unit.
Fuel level sensor unit Refer to MWI-45, "
Description".
JPNIA1015GB

MWI-20
< FUNCTION DIAGNOSIS >
METER SYSTEM
ODO/TRIP METER : Component Description
INFOID:0000000003792530
SHIFT POSITION INDICATOR
SHIFT POSITION INDICATOR : System DiagramINFOID:0000000003792531
SHIFT POSITION INDICATOR : System DescriptionINFOID:0000000003792532
 Shift position is displayed in the information display LCD in the combination meter.
 TCM transmits the shift position signal to the combination meter via CAN communication.
 The combination meter indicates shift position according to the shift position signal received via CAN com-
munication.
D. Front bumper (left back) E. Engine room (LH) F. Behind the combination meter
G. Lower left side of rear seat
Unit Description
Combination meterConverts the vehicle speed signal received from the ABS actuator and electric unit (control unit) via
CAN communication to mileage, and it displays the accumulated mileage to the odo/trip meter.
ABS actuator and electric unit
(control unit)Transmits the vehicle speed signal to the combination meter via CAN communication.
JPNIA0745GB

PCS
B2098 IGNITION RELAY ON STUCK
PCS-17
< COMPONENT DIAGNOSIS >[IPDM E/R]
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B2098 IGNITION RELAY ON STUCK
DescriptionINFOID:0000000003773272
 IPDM E/R operates the ignition relay when it receives an ignition switch ON signal from BCM via CAN com-
munication.
 Turn the ignition relay OFF by pressing the push-button ignition switch once when the vehicle speed is 4 km/
h (2.5 MPH) or less.
 Turn the ignition relay OFF with the following operation when the vehicle speed is more than 4 km/h (2.5
MPH) or when an abnormal condition occurs in CAN communication from the combination meter (Emer-
gency OFF)
- Press and hold the push-button ignition switch for 2 seconds or more.
- Press the push-button ignition switch 3 times within 1.5 seconds.
NOTE:
The ignition relay does not turn ON for 3 seconds after emergency OFF even if the push-button ignition switch
is pressed.
DTC LogicINFOID:0000000003773273
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000003773274
1.PERFORM SELF DIAGNOSIS
1. Turn ignition switch ON.
2. Erase “Self Diagnostic Result” of IPDM E/R.
3. Turn ignition switch OFF, and wait for 1 second or more.
4. Turn ignition switch ON. Check “Self Diagnostic Result” again.
Is
“IGN RELAY ON” displayed?
YES >> Replace IPDM E/R.
NO >> Refer to GI-35, "
Intermittent Incident".
DTCCONSULT-III dis-
play descriptionDTC Detection Condition Possible causes
B2098 IGN RELAY ONThe ignition relay ON is detected for 1 second at ignition switch OFF
(CPU monitors the status at the contact and excitation coil circuits of
the ignition relay inside it)Ignition relay malfunction