2010 NISSAN LATIO air condition

IP-6
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
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 lo cation of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
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 CVT and A/T mod-
els).
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 v ehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, chec k ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follo w the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pi npoint the source of the noise, use a listening tool
(Chassis Ear: J-39570, Engine Ear: J-39565, and 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 you suspect the noise is coming from.
Do not use too much force when removing clip s and fasteners, otherwise clips and fasteners
can be broken or lost during the repair , resulting in the creation of new noise.
• Tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be elimi-
nated only temporarily.
• Feeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing
the noise.
• Placing a piece of paper between components that you suspect are causing the noise.
• Looking for loose components and contact marks.
Refer to IP-7, "
Generic Squeak and Rattle Troubleshooting".
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. A NISSAN Squeak and Rattle Kit (J-43980) is available through your authorized NISSAN Parts
Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
Always check with the Parts Department for the latest parts information.
The following materials are contained in the NISSAN Squeak and Rattle Kit (J-43980). Each item can be
ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100 x 135 mm (3.94 x 5.31 in)/76884-71L01: 60 x 85 mm (2.36 x 3.35 in)/76884-71L02: 15 x 25
mm (0.59 x 0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50 x 50 mm (1.97 x 1.97 in)/73982-50Y00: 10 mm (0.39 in) thick, 50 x 50
mm (1.97 x 1.97 in)
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30 x 50 mm (1.18 x 1.97 in)
FELT CLOTH TAPE
Used to insulate where movement does not occu r. Ideal for instrument panel applications.
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SQUEAK AND RATTLE TROUBLE DIAGNOSESIP-7
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68370-4B000: 15 x 25 mm (0.59 x 0.98 in) pad/ 68239-13E00: 5 mm (0.20 in) wide tape roll
The following materials, not found in the kit, 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 will be visible or not fit.
Note: Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
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.
Generic Squeak and Rattle TroubleshootingINFOID:0000000005396854
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The 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 noi se. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicone spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Do not use silicone spray to isolate a squeak or ra ttle. If you saturate the area with silicone, you will
not be able to recheck the repair.
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 pr ocedures also apply to the center console.
DOORS
Pay attention to the:
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. You can usually insulate the ar eas with felt cloth tape or insulator foam blocks from
the NISSAN Squeak and Rattle Kit (J-43980) to repair the noise.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid bumpers out of adjustment
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IP-8
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
2. Trunk lid striker out of adjustment
3. The 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 c an often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sun visor shaft shaking in the holder
3. Front or rear windshield touching headliner and squeaking
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.
OVERHEAD CONSOLE (FRONT AND REAR)
Overhead console noises are often caused by the c onsole panel clips not being engaged correctly. Most of
these incidents are repaired by pushing up on the c onsole at the clip locations until the clips engage.
In addition look for:
1. Loose harness or harness connectors.
2. Front console map/reading lamp lens loose.
3. Loose screws at console attachment points.
SEATS
When isolating seat noise it's important to note the pos ition the seat is in and the load placed on the seat when
the noise is present. 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. The 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 thes e 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.
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CONTENTS
LAN SYSTEM
CAN FUNDAMENTAL
SERVICE INFORMATION .. ..........................
6
PRECAUTIONS .............................................. .....6
Precautions for Trouble Diagnosis ...................... ......6
Precautions for Harness Repair ................................6
CAN COMMUNICATION SYSTEM ................ .....7
System Description ............................................. ......7
System Diagram ........................................................7
CAN Communication Control Circuit .........................8
DIAG ON CAN .....................................................9
Description .......................................................... ......9
System Diagram ........................................................9
TROUBLE DIAGNOSIS .....................................10
Condition of Error Detection ................................ ....10
Symptom When Error Occurs in CAN Communi-
cation System ...................................................... ....
10
CAN Diagnosis with CONSULT-III ..........................13
Self-Diagnosis .........................................................14
CAN Diagnostic Support Monitor ............................14
How to Use CAN Communication Signal Chart ......16
DIAGNOSIS AND REPAIR WORKFLOW .........17
Trouble Diagnosis Flow Chart ............................. ....17
Trouble Diagnosis Procedure ..................................17
CAN
SERVICE INFORMATION .. .........................
22
HOW TO USE THIS SECTION ....................... ....22
Caution ................................................................ ....22
Abbreviation List ......................................................22
PRECAUTIONS ..................................................23
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
23
Precautions for Trouble Diagnosis ..........................23
Precautions for Harness Repair .......................... ....23
DIAGNOSIS AND REPAIR WORKFLOW ........25
Interview Sheet ........................................................25
CAN COMMUNICATION SYSTEM ...................26
CAN System Specification Chart .............................26
CAN Communication Signal Chart ..........................27
CAN COMMUNICATION SYSTEM ...................29
Component Parts Location ......................................29
Schematic ................................................................30
Wiring Diagram - CAN - ...........................................31
MALFUNCTION AREA CHART ........................33
Main Line .................................................................33
Branch Line .............................................................33
Short Circuit .............................................................33
MAIN LINE BETWEEN DLC AND ABS CIR-
CUIT ..................................................................
34
Diagnosis Procedure ...............................................34
MAIN LINE BETWEEN DLC AND TCM CIR-
CUIT ..................................................................
35
Diagnosis Procedure ...............................................35
ECM BRANCH LINE CIRCUIT .........................36
Diagnosis Procedure ...............................................36
BCM BRANCH LINE CIRCUIT .........................37
Diagnosis Procedure ...............................................37
DLC BRANCH LINE CIRCUIT ..........................38
Diagnosis Procedure ...............................................38
EPS BRANCH LINE CIRCUIT ..........................39
Diagnosis Procedure ...............................................39
I-KEY BRANCH LINE CIRCUIT ........................40
Diagnosis Procedure ...............................................40
M&A BRANCH LINE CIRCUIT .........................41
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DIAGNOSIS AND REPAIR WORKFLOWLAN-17
< SERVICE INFORMATION > [CAN FUNDAMENTAL]
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DIAGNOSIS AND REPAIR WORKFLOW
Trouble Diagnosis Flow ChartINFOID:0000000005395126
Trouble Diagnosis ProcedureINFOID:0000000005395127
INTERVIEW WITH CUSTOMER
Interview with the customer is important to detect t he root cause of CAN communication system errors and to
understand vehicle condition and symptoms for proper trouble diagnosis.
Points in interview
• What: Parts name, system name
• When: Date, Frequency
• Where: Road condition, Place
• In what condition: Driving condition/environment
• Result: Symptom
NOTE:
• Check normal units as well as error symptoms.
- Example: Circuit between ECM and the combination meter is judged normal if the customer indicates tachometer functions normally.
• When a CAN communication system error is present, multiple control units may malfunction or go into fail- safe mode.
JSMIA0016GB
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< SERVICE INFORMATION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
• Indication of the combination meter is important to det
ect the root cause because it is the most obvious to
the customer, and it performs CAN communication with many units.
INSPECTION OF VEHICLE CONDITION
Check whether the symptom is reproduced or not.
NOTE:
Do not turn the ignition switch OFF or disconnect the bat tery cable while reproducing the error. The error may
temporarily correct itself, making it difficult to determine the root cause.
CHECK OF CAN SYSTEM TYPE (HOW TO U SE CAN SYSTEM TYPE SPECIFICATION CHART)
Determine CAN system type based on vehicle equipment.
NOTE:
• This chart is used if CONSULT-III does not automatically recognize CAN system type.
• There are two styles for CAN system type specific ation charts. Depending on the number of available sys-
tem types, either style A or style B may be used.
CAN System Type Specification Chart (Style A)
NOTE:
SKIB8717E
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< SERVICE INFORMATION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
CAN system type is easily checked with the vehicle equi
pment identification information shown in the chart.
CREATE INTERVIEW SHEET
Fill out the symptom described by the customer, vehicle condition, and CAN system type on the interview
sheet.
JSMIA0018GB
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LT-14
< SERVICE INFORMATION >
HEADLAMP (FOR USA)
WORK SUPPORT
Display Item List
CONSULT-III Function (IPDM E/R)INFOID:0000000005612496
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
SELF-DIAGNOSTIC RESULTS
Display Item List
Turn signal lamp
Hazard lampFLASHER
××
Blower fan switch sig-
nal
Air conditioner switch
signal AIR CONDITION-
ER
××
Intelligent Key INTELLIGENT
KEY ×
Combination switch COMB SW ×
NVIS (NATS) IMMU ××
Interior lamp battery
saver BATTERY SAV-
ER
××
×
Back door/Trunk TRUNK ××
Theft alarm THEFT ALARM×× ×
Retained accessory
power control RETAINED PWR
×× ×
Oil pressure swit ch SIGNAL BUFFER ××
Low tire pressure moni-
tor AIR PRESSURE
MONITOR
××
× ×
Panic alarm PANIC ALARM ×
System and item
CONSULT-III dis-
play Diagnostic test mode (Inspection by part)
WORK
SUPPORT SELF
−
DIAG RE-
SULTS CAN DIAG
SUPPORT
MNTR DATA
MONITOR ECU
PA R T
NUMBER AC-
TIVE
TEST CON-
FIGU-
RATION
Item Description
RESET SETTING VALUE Return a value set with WORK SUPPORT of each system to a default value in factory shipment.
IPDM E/R diagnostic Mode Description
SELF-DIAG RESULTS Displays IPDM E/R self-diagnosis results. DATA MONITOR Displays IPDM E/R input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
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