2009 NISSAN LATIO service

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SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000004306519
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, 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 in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution Necessary for Steering Wh eel Rotation After Battery Disconnect
INFOID:0000000004683900
NOTE:
• This Procedure is applied only to models with Inte lligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE 1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.

LT-16< SERVICE INFORMATION >
HEADLAMP (FOR USA)
4. Check voltage between headlamp harness connector and ground.
OK or NG OK >> GO TO 4.
NG >> GO TO 5. 4.
CHECK HEADLAMP GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between headlamp harness connector and ground.
OK or NG OK >> Check connecting condition headlamp harness connec-
tor.
NG >> Repair harness or connector. 5.
CHECK HEADLAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector (A) and
headlamp harness connector (B).
OK or NG OK >> Replace IPDM E/R. Refer to
PG-27, " Removal and
Installation of IPDM E/R " .
NG >> Repair harness or connector.
High Beam Indicator Lam p Does Not Illuminate INFOID:00000000043065331.
BULB INSPECTION
Inspect CAN communication system. Refer to LAN-8 .
OK or NG OK >> Replace combination meter. Refer to
DI-19, " Removal and Installation " .
NG >> Repair as necessary.
Headlamp Low Beam Does Not Illuminate (Both Sides) INFOID:00000000043065341.
CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-III
1. Select “BCM” on CONSULT-III. Select “HEAD LAMP” on “SELECT TEST ITEM” screen.
Terminal
Voltage
(+)
(− )
Headlamp connector Terminal
RH E26 1 Ground Battery voltage
LH E25 WKIA5552E
Headlamp connector Terminal
Ground Continuity
RH E26 2 Yes
LH E25 PKIC0961E
Circuit
A B
Continuity
Connector Terminal Connector Terminal
RH E47 56 E26
1 Yes
LH 55 E25 WKIA5470E

LT-20< SERVICE INFORMATION >
HEADLAMP (FOR USA)
3. Check continuity between IPDM E/R harness connector (A) and
headlamp harness connector (B).
OK or NG OK >> Replace IPDM E/R. Refer to
PG-26, " IPDM E/R Power/
Ground Circuit Inspection " .
NG >> Repair harness or connector.
Headlamps Do Not Turn OFF INFOID:00000000043065361.
CHECK HEADLAMPS TURN OFF
Make sure that lighting switch is OFF. Make sure headlamp turns OFF when ignition switch is turned OFF.
OK or NG OK >> GO TO 3.
NG >> GO TO 2. 2.
CHECK COMBINATION SWITCH INPUT SIGNAL
1. Select “BCM” on CONSULT-III. Select “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen. Make sure that “HEAD LAMP SW 1” and
“HEAD LAMP SW 2” turns ON-OFF linked with operation of lighting switch.
OK or NG OK >> Replace IPDM E/R. Refer to
PG-27, " Removal and Installation of IPDM E/R " .
NG >> Check combination switch (lighting switch). Refer to LT-63, " Combination Switch Inspection " .
3.
CHECKING CAN COMMUNICATIONS BETWEEN BCM AND IPDM E/R
Select “BCM” on CONSULT-III, and perform self-diagnosis for “BCM”.
Display of self - diagnosis results
NO DTC>> Replace IPDM E/R. Refer to
PG-27, " Removal and Installation of IPDM E/R " .
CAN COMM CIRCUIT>> Refer to LAN-8, " System Description " .
Circuit
A B
Continuity
Connector Terminal Connector Terminal
RH E47 54 E26
3 Yes
LH 52 E25 WKIA5471E
When lighting switch is OFF
position : HEAD LAMP SW 1 OFF
: HEAD LAMP SW 2 OFF

HEADLAMP (FOR CANADA) - DA
YTIME LIGHT SYSTEM -
LT-35
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Aiming Adjustment
INFOID:0000000004306553
PREPARATION BEFORE ADJUSTING Before performing aiming adjustment, check the following.
1. Keep all tires inflated to correct pressures.
2. Place vehicle on level surface.
3. Set that there is no-load in vehicle other than the driv er (or equivalent weight placed in driver's position).
Coolant, engine oil filled up to correct level and full fuel tank, spare tire, jack and tools are properly
stowed.
LOW BEAM AND HIGH BEAM 1. Turn headlamp low beam ON.
2. Use adjusting screw to perform aiming adjustment.
3. Insert the tool through the adjusting screw a ccess hole to avoid damage to the adjusting screw.
ADJUSTMENT USING AN ADJUSTMENT SCREEN (LIGHT/DARK BORDERLINE) 1. Headlamp A. Inner and outer adjustment B. Adjusting screw access hole
C. Adjusting screw LKIA0930E

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)

HEADLAMP (FOR CANADA) - DA
YTIME LIGHT SYSTEM -
LT-37
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2. Remove the headlamp. Refer to
LT-23, " Removal and Installation " .
3. Turn bulb socket counterclockwise and unlock it.
4. Remove bulb from its socket.
FRONT TURN SIGNAL LAMP 1. Turn lighting switch OFF.
2. Remove the headlamp. Refer to LT-23, " Removal and Installation " .
3. Turn bulb socket counterclockwise and unlock it.
4. Remove bulb from its socket.
Removal and Installation INFOID:0000000004306555
REMOVAL 1. Disconnect the negative battery terminal.
2. Remove front bumper fascia. Refer to EI-15 .
3. Remove headlamp bolts (A).
4. Pull headlamp (1) toward the vehicle front, disconnect connec- tor, and remove headlamp.
INSTALLATION Installation is in the reverse order of removal.
• After installation, perform aiming adjustment. Refer to LT-35, " Aiming Adjustment " .
Disassembly and Assembly INFOID:0000000004306556 PKIC1223E
WKIA5418E

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Wiring Diagram - STOP/L
INFOID:0000000004306598
SEDAN
Bulb Replacement for High-Mounted Stop Lamp INFOID:0000000004306600
HATCHBACK The LED element is not serviced separately, the hi gh-mounted stop lamp must be replaced as an assembly.
Refer to LT-68, " Removal and Installation of High-Mounted Stop Lamp " . B

PARKING, LICENSE PL
ATE AND TAIL LAMPS
LT-73
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PARKING, LICENSE PLATE AND TAIL LAMPS
Component Parts and Har ness Connector Location INFOID:0000000004306607
System Description INFOID:0000000004306608
The control of the parking, license plate and tail lamp operation is dependent upon the position of lighting
switch. When the lighting switch is placed in the 1ST position, the BCM (body control module) receives input
signal requesting the parking, license plate and tail lamps to illuminate. This input signal is communicated to
the IPDM E/R (intelligent power distribution module engine room) via the CAN communication lines. The CPU
(central processing unit) located in the IPDM E/R contro ls the tail lamp relay coil. This relay, when energized,
directs power to parking, license plate and tail lamps, which then illuminate.
Power is supplied at all times
• to ignition relay located in IPDM E/R,
• to tail lamp relay located in IPDM E/R,
• through 15A fuse (No. 52, located in IPDM E/R) and
• through 20A fuse (No. 53, located in IPDM E/R)
• to the CPU located in the IPDM E/R,
• through 40A fusible link (letter g , located in fuse and fusible link block)
• to BCM terminal 70,
• through 10A fuse [No. 8, located in fuse block (J/B)],
• to BCM terminal 57.
With the ignition switch in the ON or START position, power is supplied
• through 10A fuse [No. 6, located in fuse block (J/B)]
• to BCM terminal 38,
• to ignition relay located in IPDM E/R and
• through the ignition relay
• to the CPU of the IPDM E/R.
With the ignition switch in the ACC or ON position, power is supplied
• through 10A fuse [No. 20, located in fuse block (J/B)]
• to BCM terminal 11.
Ground is supplied
• to BCM terminal 67
• through grounds M20 and M61,
• to IPDM E/R terminals 59 and 39
• through grounds E15 and E24.
OPERATION BY LIGHTING SWITCH With the lighting switch in the 1ST or 2ND positi on, the BCM receives an input signal requesting parking,
license plate and tail lamps to illuminate. This input si gnal is communicated to the IPDM E/R via the CAN com-
munication lines. The CPU, located in the IPDM E/R, c ontrols the tail lamp relay coil. When energized, the tail
lamp relay directs power
• through 10A fuse (No. 37, located in IPDM E/R),
• through IPDM E/R terminal 26
• to front combination lamp LH terminal 6, and
• through IPDM E/R terminal 27 1. IPDM E/R E45, E46 and E48 2. BCM M18 and M20 (view with glove
box removed)3. Combination switch (lighting switch)
M28 WKIA5554E