2009 NISSAN LATIO ECU

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 loos ening 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.
68370-4B000: 15 x 25 mm (0.59 x 0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll

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How to Perform Trouble Diagnosis
INFOID:0000000004306527
1. Confirm the symptom or customer complaint.
2. Understand operation, description and function description. Refer to LT-4, " System Description " .
3. Perform the Preliminary Check. Refer to LT-11, " Preliminary Check " .
4. Check symptom and repair or replace the cause of the malfunction.
5. Do the headlamps operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary Check INFOID:0000000004306528
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM Refer to BCS-15, " BCM Power Supply and Ground Circuit Inspection " .
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR IPDM E/R Refer to PG-26, " IPDM E/R Power/Ground Circuit Inspection " .
CONSULT-III Function (BCM) INFOID:0000000004306529
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
WORK SUPPORT
Display Item List
DATA MONITOR
Display Item List BCM diagnostic
test item Diagnostic mode Description
Inspection by part WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the BCM for
setting the status suitable for required operation, input/output signals are received
from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions. Item Description CONSULT-III Factory setting
BATTERY SAVER SET Exterior lamp battery saver control mode can be changed
in this mode. Selects exterior lamp battery saver control
mode between ON/OFF. ON
×
OFF — Monitor item Contents
IGN ON SW "ON/OFF" Displays "IGN position (ON)/OFF, ACC position (OFF)" judged from the ignition switch signal.
ACC ON SW "ON/OFF" Displays "ACC (ON)/OFF, Ignition OFF (OFF)" status judged from ignition switch signal.
HI BEAM SW "ON/OFF" Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from lighting
switch signal.
HEAD LAMP SW 1 "ON/OFF" Displays status (headlamp switch 1: ON/Others: OFF) of headlamp switch 2 judged from lighting
switch signal.
HEAD LAMP SW 2 "ON/OFF" Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from lighting
switch signal.

LT-36< SERVICE INFORMATION >
HEADLAMP (FOR CANADA) - DAY
TIME LIGHT SYSTEM -
• Aim each headlamp individually and ensure other headlamp beam pattern is blocked from screen.
- For vertical headlamp aiming, adjust headlamp until beam pattern is positioned per specified dimensions.
Bulb Replacement INFOID:0000000004306554
CAUTION:
After installing bulb, be sure to install plastic cap and bulb socket securely to ensure watertightness.
HEADLAMP (HIGH/LOW)
1. Turn lighting switch OFF.
2. Remove the headlamp. Refer to LT-23, " Removal and Installation " .
3. Remove back cover.
4. Unlock retaining spring and remove bulb from headlamp.
PARKING (CLEARANCE) LAMP
1. Turn lighting switch OFF. A. Right B. Vertical center line of headlamp C. Horizontal and vertical aiming center
point of headlamp
D. Left E. Vertical aiming cutoff point F. Cutoff line for vertical aiming evalua- tion
G. Acceptable vertical cutoff setting at horizontal aiming point H. Horizontal center line of headlamp J. Maximum acceptable vertical aiming
point
K. Minimum acceptable vertical aiming point L. Aiming distance from center of head-
lamp to aiming screen WKIA4287E
Description Halogen Headlamp
Vertical aiming cutoff point (E) 53.2 mm (2.094 in)
Minimum acceptable vertical aiming point (K) 13.3 mm (0.52 in)
Maximum acceptable vertical aiming point (J) 93.1 mm (3.67 in)
Aiming distance from center of headlamp to aiming screen (L) 7.62 m (25 ft)

LU
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ON-VEHICLE MAINTENANCE
ENGINE OIL
Inspection INFOID:0000000004784337
ENGINE OIL LEVEL NOTE:
Park vehicle on a level surface, wait 10 minutes and check the engine oil level.
1. Pull out oil level gauge and wipe it clean.
2. Insert oil level gauge and make sure the engine oil level is within the range (A) shown.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE • Check engine oil for white milky or excessive contamination.
• If engine oil becomes white, it is highly probable t hat it is contaminated with engine coolant. Repair or
replace damaged parts.
ENGINE OIL LEAKAGE Check for engine oil leakage around the following areas:
• Oil pan (upper and lower)
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Intake valve timing control solenoid valve
• Front cover
• Mating surface between cylinder head and camshaft bracket
• Mating surface between cylinder block and cylinder head
• Mating surface between cylinder head and rocker cover
• Crankshaft oil seals (front and rear)
• Oil filter (for intake valve timing control)
OIL PRESSURE CHECK WARNING:
• Be careful not to burn yoursel f, as engine oil may be hot.
• For engine oil pressure check the transaxle should be in “ Park position” (A/T models) or “Neutral
position” (M/T models), and apply the parking brake securely.
1. Check engine oil level.
2. Disconnect harness connector at oil pressure switch (2), and remove oil pressure switch (2) from the cylinder block (1) using
suitable tool.
CAUTION:
Never drop or shock oil pressure switch. PBIC3817E

Tire "
Rotation "
Rotation "
Tire Pressure Monitor-
ing System (TPMS)
t ransmitter compo-
nents Replace the TPMS transmitter grommet seal, valve core and cap when the tires
are replaced due to wear or age. WT-8 Wheel Align-
ment Inspection " and
WT-7, " Balancing
Wheels "
LOCKS, HING-
ES AND HOOD LATCH :
Lubricating Locks, Hing-
es and Hood Latch "
Item
Reference page
Warning lamps and
chimes Make sure that all warning lamps and chimes are operating properly. —
Windshield wiper and
washer Check that the wipers and washer operate properly and that the wipers do not
streak. —
Windshield defroster Check that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioning. —
Steering wheel Check that it has the specified play. Be sure to check for changes in the steering
condition, such as excessive play, hard steering or strange noises.
Free play: Less than 35 mm (1.38 in) —
Seats Check seat position controls such as seat adjusters, seat back recliner, etc. to
make sure they operate smoothly and that all latches lock securely in every po-
sition. Check that the head restraints move up and down smoothly and that the
locks (if equipped) hold securely in all latched positions. Check that the latches
lock securely for folding-down rear seat backs. —

MA
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UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).
Seat belts
Check that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly and are installed securely. Check the
belt webbing for cuts, fraying, wear or damage. MA-50, " SEAT BELT,
BUCKLES, RETRAC-
TORS, ANCHORS AND
ADJUSTERS : Checking
Seat Belts, Buckles, Re-
tractors, Anchors and
Adjusters "
On-vehicle In-
spection and Adjust-
ment "
Inspection and
Adjustment " and
BR-20, " On Board Inspection "
On-Vehicle Ser-
vice "
Item
Reference page
Windshield wash-
er fluid Check that there is adequate fluid in the tank. —
Engine coolant
level Check the coolant level when the engine is cold. CO-11 (HR)
CO-35 (MR)
A/C condenser,
radiator and hos-
es Check the front of the condenser and radiator and clean off any dirt, insects, leaves,
etc., that may have accumulated. Make sure the radiator hoses have no cracks, de-
formation, deterioration or loose connections. —
Brake and clutch
fluid levels Make sure that the brake and clutch fluid levels are between the “MAX” and “MIN”
lines on the reservoirs. BR-9, " On Board Inspec-
tion "
(HR)
MA-26 (MR)
Engine oil level Check the level on the dipstick after parking the vehicle on a level spot and turning
off the engine. MA-20 (HR)
MA-30 (MR)
Automatic tran-
saxle fluid level Check the level on the dipstick after putting the selector lever in “P” with the engine
idling. MA-38, " CVT FLUID :
Checking CVT Fluid
(RE0F08A) "
MA-39, " CVT FLUID :
Checking CVT Fluid
(RE0F08B) "

ENGINE MAINTENANCE (HR16DE)
MA-21
< SERVICE INFORMATION >
C
D E
F
G H
I
J
K
M A
B MA
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2. Insert oil level gauge and make sure the engine oil level is within
the range (A) shown.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE • Check engine oil for white milky or excessive contamination.
• If engine oil becomes white, it is highly probable t hat it is contaminated with engine coolant. Repair or
replace damaged parts.
ENGINE OIL LEAKAGE Check for engine oil leakage around the following areas:
• Oil pan (upper and lower)
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Intake valve timing control solenoid valve
• Front cover
• Mating surface between cylinder head and camshaft bracket
• Mating surface between cylinder block and cylinder head
• Mating surface between cylinder head and rocker cover
• Crankshaft oil seals (front and rear)
• Oil filter (for intake valve timing control)
OIL PRESSURE CHECK WARNING:
• Be careful not to burn yoursel f, as engine oil may be hot.
• For engine oil pressure check the transaxle should be in “ Park position” (A/T models) or “Neutral
position” (M/T models), and apply the parking brake securely.
1. Check engine oil level.
2. Disconnect harness connector at oil pressure switch (2), and remove oil pressure switch (2) from the cylinder block (1) using
suitable tool.
CAUTION:
Never drop or shock oil pressure switch. JPBIA0554ZZ
PBIC3817E

ENGINE MAINTENANCE (MR18DE)
MA-31
< SERVICE INFORMATION >
C
D E
F
G H
I
J
K
M A
B MA
N
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2. Insert oil level gauge and make sure the engine oil level is within
the range (A) as shown.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE • Check engine oil for white milky or excessive contamination.
• If engine oil becomes white, it is highly probable t hat it is contaminated with engine coolant. Repair or
replace damaged parts.
ENGINE OIL LEAKAGE Check for engine oil leakage around the following areas:
• Oil pan (upper and lower)
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Intake valve timing control solenoid valve
• Front cover
• Mating surface between cylinder block and cylinder head
• Mating surface between cylinder head and rocker cover
• Crankshaft oil seals (front and rear)
• Oil filter (for intake valve timing control)
OIL PRESSURE CHECK WARNING:
• Be careful not to burn yoursel f, as engine oil may be hot.
• For engine oil pressure check the transaxle should be in “ Park position” (A/T models) and (CVT
models) or “Neutral position” (M/T mode ls), and apply the parking brake securely.
1. Check engine oil level.
2. Remove undercover using power tool.
3. Disconnect harness connector at oil pressure switch (1), and remove oil pressure switch using a suitable tool.
• Oil pan (lower) (2)
• ⇐ Front
CAUTION:
Do not drop or shock oil pressure switch. WBIA0776E
PBIC3310E