2007 NISSAN LATIO key battery

GI-4
PRECAUTIONS
Revision: June 20062007 Versa
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 power 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 all control units using CONSULT-II.
General PrecautionsEAS001ZA

Do not operate the engine for an extended period of time without
proper exhaust ventilation.
Keep the work area well ventilated and free of any flammable
materials. Special care should be taken when handling any flam-
mable or poisonous materials, such as gasoline, refrigerant gas,
etc. When working in a pit or other enclosed area, be sure to
properly ventilate the area before working with hazardous mate-
rials.
Do not smoke while working on the vehicle.

Before jacking up the vehicle, apply wheel chocks or other tire
blocks to the wheels to prevent the vehicle from moving. After
jacking up the vehicle, support the vehicle weight with safety
stands at the points designated for proper lifting before working
on the vehicle.
These operations should be done on a level surface.

When removing a heavy component such as the engine or tran-
saxle/transmission, be careful not to lose your balance and drop
them. Also, do not allow them to strike adjacent parts, especially
the brake tubes and master cylinder.

Before starting repairs which do not require battery power:
Turn off ignition switch.
Disconnect the negative battery terminal.

If the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.

Battery posts, terminals and related accessories contain lead
and lead compounds. Wash hands after handling.
SGI285
SGI231
SEF 2 89 H

GI-12
HOW TO USE THIS MANUAL
Revision: June 20062007 Versa
3.Symbol used in illustration
Symbols included in illustrations refer to measurements or procedures. Before diagnosing a problem,
familiarize yourself with each symbol. Refer to "Connector Symbols" in GI Section and "KEY TO SYM-
BOLS SIGNIFYING MEASUREMENTS OR PROCEDURES" below.
4.Action items
Next action for each test group is indicated based on result of each question. Test group number is shown
in the left upper portion of each test group.
HARNESS WIRE COLOR AND CONNECTOR NUMBER INDICATION
There are two types of harness wire color and connector number indication.
TYPE 1: Harness Wire Color and Connector Number are Shown in Illustration

Letter designations next to test meter probe indicate harness
wire color.

Connector numbers in a single circle (e.g. M33) indicate har-
ness connectors.

Connector numbers in a double circle (e.g. F211) indicate com-
ponent connectors.a. Battery voltage → 11 - 14V or approximately 12V
b. Voltage : Approximately 0V → Less than 1V
AGI070

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
GI-31
C
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MB
GI
Revision: June 20062007 Versa

Connect one probe of the DMM to a known good ground.

Begin probing at one end of the circuit and work your way to the other end.

With SW1 open, probe at SW1 to check for voltage.
voltage; open is further down the circuit than SW1.
no voltage; open is between fuse block and SW1 (point A).

Close SW1 and probe at relay.
voltage; open is further down the circuit than the relay.
no voltage; open is between SW1 and relay (point B).

Close the relay and probe at the solenoid.
voltage; open is further down the circuit than the solenoid.
no voltage; open is between relay and solenoid (point C).
Any powered circuit can be diagnosed using the approach in the previous example.
Testing for “Shorts” in the Circuit
To simplify the discussion of shorts in the system, please refer to the following schematic.
RESISTANCE CHECK METHOD

Disconnect the battery negative cable and remove the blown fuse.

Disconnect all loads (SW1 open, relay disconnected and solenoid disconnected) powered through the
fuse.

Connect one probe of the DMM to the load side of the fuse terminal. Connect the other probe to a known
good ground.

With SW1 open, check for continuity.
continuity; short is between fuse terminal and SW1 (point A).
no continuity; short is further down the circuit than SW1.

Close SW1 and disconnect the relay. Put probes at the load side of fuse terminal and a known good
ground. Then, check for continuity.
continuity; short is between SW1 and the relay (point B).
no continuity; short is further down the circuit than the relay.

Close SW1 and jump the relay contacts with jumper wire. Put probes at the load side of fuse terminal and
a known good ground. Then, check for continuity.
continuity; short is between relay and solenoid (point C).
no continuity; check solenoid, retrace steps.
VOLTAGE CHECK METHOD

Remove the blown fuse and disconnect all loads (i.e. SW1 open, relay disconnected and solenoid discon-
nected) powered through the fuse.

Turn the ignition key to the ON or START position. Verify battery voltage at the battery + side of the fuse
terminal (one lead on the battery + terminal side of the fuse block and one lead on a known good ground).

With SW1 open and the DMM leads across both fuse terminals, check for voltage.
voltage; short is between fuse block and SW1 (point A).
no voltage; short is further down the circuit than SW1.

With SW1 closed, relay and solenoid disconnected and the DMM leads across both fuse terminals, check
for voltage.
voltage; short is between SW1 and the relay (point B).
SG I8 47 -A

LAN-76
[CAN]
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
EPS Control Unit Branch Line CircuitUKS005WM
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit
side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of EPS control unit.
2. Check the resistance between the EPS control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the EPS control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of EPS control unit. Refer to STC-9, "
Wiring Diagram — EPS
—" .
OK or NG
OK >>
Present error: Replace the EPS control unit. Refer to PS-9, "Removal and Installation" .

Past error: Error was detected in the EPS control unit branch line.
NG >> Repair the power supply and the ground circuit.
Intelligent Key Unit Branch Line CircuitUKS005WN
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection
(unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
EPS control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
M53 9 16 Approx. 54 – 66

TROUBLE DIAGNOSIS
LAN-77
[CAN]
C
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MA
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LAN
Revision: June 20062007 Versa
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of Intelligent Key unit.
2. Check the resistance between the Intelligent Key unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the Intelligent Key unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of Intelligent Key unit. Refer to BL-123, "
Power Supply and
Ground Circuit Check" .
OK or NG
OK >>
Present error: Replace the Intelligent Key unit. Refer to BL-160, "Removal and Installation of
Intelligent Key Unit" .

Past error: Error was detected in the Intelligent Key unit branch line.
NG >> Repair the power supply and the ground circuit.
Combination Meter Branch Line CircuitUKS005WO
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the combination meter for damage, bend and loose connection
(unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of combination meter.
2. Check the resistance between the combination meter harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the combination meter branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of combination meter. Refer to DI-17, "
Power Supply and
Ground Circuit Inspection" .
OK or NG
OK >>
Present error: Replace the combination meter. Refer to DI-23, "Removal and Installation" .

Past error: Error was detected in the combination meter branch line.
NG >> Repair the power supply and the ground circuit.
Intelligent Key unit harness connector
Resistance (Ω)
Connector No. Terminal No.
M52 2 3 Approx. 54 – 66
Combination meter harness connector
Resistance (Ω)
Connector No. Terminal No.
M24 1 2 Approx. 54 – 66

LT-2Revision: June 20062007 Versa Daytime Light Control Does Not Operate Properly
(High Beam Headlamps Operate Properly) ............ 35
Aiming Adjustment .................................................. 37
PREPARATION BEFORE ADJUSTING .............. 37
LOW BEAM AND HIGH BEAM ........................... 37
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 38
Bulb Replacement .................................................. 39
HEADLAMP (HIGH/LOW) ................................... 39
PARKING (CLEARANCE) LAMP ......................... 39
FRONT TURN SIGNAL LAMP ............................ 39
Removal and Installation ........................................ 39
REMOVAL ........................................................... 39
INSTALLATION .................................................... 39
Disassembly and Assembly .................................... 40
DISASSEMBLY ................................................... 40
ASSEMBLY ......................................................... 40
FRONT FOG LAMP .................................................. 41
Component Parts and Harness Connector Location ... 41
System Description ................................................. 41
OUTLINE ............................................................. 41
FOG LAMP OPERATION .................................... 42
COMBINATION SWITCH READING FUNCTION ... 42
EXTERIOR LAMP BATTERY SAVER CONTROL ... 42
CAN Communication System Description .............. 42
Wiring Diagram — F/FOG — .................................. 43
Terminals and Reference Values for BCM .............. 45
Terminals and Reference Values for IPDM E/R ...... 45
How to Proceed With Trouble Diagnosis ................ 45
Preliminary Check .................................................. 45
CHECK POWER SUPPLY AND GROUND CIR-
CUIT FOR BCM ................................................... 45
CHECK POWER SUPPLY AND GROUND CIR-
CUIT FOR IPDM E/R ........................................... 45
CONSULT-II Function (BCM) .................................. 45
CONSULT-II Function (IPDM E/R) .......................... 45
Front Fog lamps Do Not Illuminate (Both Sides) .... 45
Front Fog Lamp Does Not Illuminate (One Side) ... 48
Aiming Adjustment .................................................. 49
Bulb Replacement .................................................. 49
Removal and Installation ........................................ 50
REMOVAL ........................................................... 50
INSTALLATION .................................................... 50
TURN SIGNAL AND HAZARD WARNING LAMPS ... 51
Component Parts and Harness Connector Location ... 51
System Description ................................................. 51
TURN SIGNAL OPERATION ............................... 51
HAZARD LAMP OPERATION ............................. 52
REMOTE KEYLESS ENTRY SYSTEM OPERA-
TION .................................................................... 53
COMBINATION SWITCH READING FUNCTION ... 53
CAN Communication System Description .............. 53
Schematic ............................................................... 54
Wiring Diagram — TURN — ................................... 55
Terminals and Reference Values for BCM .............. 59
How to Proceed With Trouble Diagnosis ................ 59
Preliminary Check .................................................. 59
CHECK POWER SUPPLY AND GROUND CIR-
CUIT FOR BCM ................................................... 59CONSULT-II Function (BCM) ..................................59
Turn Signals Do Not Operate ..................................59
Front Turn Signal Lamp Does Not Operate ............59
Rear Turn Signal Lamp Does Not Operate .............60
Hazard Warning Lamp Does Not Operate But Turn
Signal Lamp Operates ............................................62
Turn Signal Indicator Lamp Does Not Operate .......63
Bulb Replacement of Front Turn Signal Lamp ........64
Bulb Replacement of Rear Turn Signal Lamp .........64
Removal and Installation of Front Turn Signal Lamp ...64
Removal and Installation of Rear Turn Signal Lamp ...64
LIGHTING AND TURN SIGNAL SWITCH ................65
Removal and Installation .........................................65
REMOVAL ............................................................65
INSTALLATION ....................................................65
HAZARD SWITCH .....................................................66
Removal and Installation .........................................66
REMOVAL ............................................................66
INSTALLATION ....................................................66
COMBINATION SWITCH ..........................................67
Wiring Diagram — COMBSW — ............................67
Combination Switch Reading Function ...................68
Terminals and Reference Values for BCM ..............68
CONSULT-II Function (BCM) ..................................68
Combination Switch Inspection ...............................68
Removal and Installation .........................................70
STOP LAMP ..............................................................71
Wiring Diagram — STOP/L — ................................71
Bulb Replacement of High-Mounted Stop Lamp .....72
Bulb Replacement of Rear Combination Lamp for
Stop Lamp ...............................................................72
Removal and Installation of High-Mounted Stop
Lamp .......................................................................72
REMOVAL ............................................................72
INSTALLATION ....................................................72
Removal and Installation of Rear Combination
Lamp for Stop Lamp ................................................72
BACK-UP LAMP .......................................................73
Wiring Diagram — BACK/L — ................................73
Bulb Replacement ...................................................74
Removal and Installation .........................................74
PARKING, LICENSE PLATE AND TAIL LAMPS ......75
Component Parts and Harness Connector Location ...75
System Description .................................................75
OPERATION BY LIGHTING SWITCH .................75
COMBINATION SWITCH READING FUNCTION ...76
EXTERIOR LAMP BATTERY SAVER CONTROL ...76
CAN Communication System Description ..............76
Schematic ...............................................................77
Wiring Diagram — TAIL/L — ...................................78
Terminals and Reference Values for BCM ..............81
Terminals and Reference Values for IPDM E/R ......81
How to Proceed With Trouble Diagnosis ................81
Preliminary Check ...................................................81
CHECK POWER SUPPLY AND GROUND CIR-
CUIT FOR BCM ...................................................81
CHECK POWER SUPPLY AND GROUND CIR-
CUIT FOR IPDM E/R ...........................................81
CONSULT-II Function (BCM) ..................................81

LT-94
INTERIOR ROOM LAMP
Revision: June 20062007 Versa
When key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal
37.
When the ignition knob switch is released, power will not be supplied to Intelligent Key unit terminal 27.
When front door key cylinder switch LH is unlocked, ground is supplied

to BCM terminal 7

through front door key cylinder switch LH terminal 3

through front door key cylinder switch LH terminal 2

through grounds M57 and M61.
At the time the front door LH is opened, the BCM detects the front door LH is unlocked. It determines that the
interior room lamp timer operation conditions are met, and interior room lamp ON for 30 seconds.
When the key is in ignition key cylinder (key switch ON), or ignition knob switch is pushed, power is supplied

through key switch and ignition knob switch terminal 1

to BCM terminal 37, or

through key switch and ignition knob switch terminal 3

to Intelligent Key unit terminal 27.
When the key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated.
When the ignition knob switch is released, power supply to intelligent key unit is terminated. The BCM detects
that the key has been removed, determines that interior room lamp timer conditions are met, and turns room
lamp ON for 30 seconds.
When the front door LH opens → closes, and key is not inserted in key switch (or ignition knob switch is
released), BCM terminal 47 changes between 0V (door open) → 12V (door closed). BCM determines that
conditions for room lamp operation are met, and turns room lamp ON for 30 seconds.
Interior room lamp timer control is canceled under the following conditions:

Front door LH is locked (with keyfob or front door key cylinder switch LH).

Front door LH is opened (front door switch LH).

Ignition switch ON.
INTERIOR LAMP BATTERY SAVER CONTROL
If an interior room lamp is left ON, it will not be turned OFF even when door is closed.
BCM turns off interior lamp automatically to save battery 30 minutes after ignition switch is turned off.
After lamps are turned OFF by the battery saver system, the lamps illuminate again when

front door key cylinder switch LH is locked or unlocked

door is opened or closed

key is removed from ignition key cylinder or inserted in ignition key cylinder, or the ignition knob switch is
pushed or released.
Interior lamp battery saver control time period can be changed by the function setting of CONSULT-II.

LT-102
INTERIOR ROOM LAMP
Revision: June 20062007 Versa
NOTE:
Vehicles without intelligent key system display this item, but cannot be monitored.
ACTIVE TEST
Display Item List
WORK SUPPORT
Display Item List
DATA MONITOR
Display Item List
DOOR SW - DR “ON/OFF”Displays status of front door LH as judged from front door switch LH signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW - AS “ON/OFF”Displays “Door open (ON)/Door closed (OFF)” status, determined from front door switch
RH signal.
DOOR SW - RR “ON/OFF”Displays “Door open (ON)/Door closed (OFF)” status, determined from rear door switch
RH signal.
DOOR SW - RL “ON/OFF”Displays “Door open (ON)/Door closed (OFF) ” status, determined from rear door switch
LH signal.
LOCK STATUS “ON/OFF”Display status (door is locked: ON/door is unlocked: OFF) of front door lock actuator LH
(unlock sensor) judged from the front door lock actuator LH (unlock sensor) signal.
CDL LOCK SW “ON/OFF”Displays “Door locked (ON)/Door unlocked (OFF) status, determined from locking
detection switch in the front door LH.
CDL UNLOCK SW “ON/OFF”Displays “Door unlocked (OFF)” status, determined from locking detection switch in
front door RH.
I− KEY LOCK
NOTE“ON/OFF” Displays “Locked (ON)/Other (OFF)” status, determined from lock signal.
I− KEY UNLOCK
NOTE“ON/OFF” Displays “Unlocked (ON)/Other (OFF)” status, determined from unlock signal. Monitor item Contents
Test item Description
INT LAMP Interior room lamp can be operated by any ON-OFF operations.
Item Description CONSULT-II
ROOM LAMP TIMER SET Interior room lamp battery saver timer setting can be changed.MODE 1: 30 min.
MODE 2: 60 min.
ROOM LAMP BAT SAV SETInterior room lamp battery saver control mode can be changed in this mode.
Select interior room lamp battery saver control mode between ON and OFF.ON/OFF
Monitor item Contents
IGN ON SW “ON/OFF”Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from ignition switch sig-
nal.
KEY ON SW “ON/OFF” Displays “Key inserted (ON)/key removed (OFF)” status judged from key switch signal.
DOOR SW - DR “ON/OFF”Displays status of front door LH as judged from front door switch LH signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW - AS “ON/OFF”Displays “Door open (ON)/Door closed (OFF)” status, determined from front door switch
RH signal.
DOOR SW - RR “ON/OFF”Displays “Door open (ON)/Door closed (OFF)” status, determined from rear door switch
RH signal.
DOOR SW - RL “ON/OFF”Displays “Door open (ON)/Door closed (OFF) ” status, determined from rear door switch
LH signal.
LOCK STATUS “ON/OFF”Display status (door is locked: ON/door is unlocked: OFF) of front door lock actuator LH
(unlock sensor) judged from the front door lock actuator LH (unlock sensor) signal.
CDL LOCK SW “ON/OFF”Displays “Door locked (ON)/Door unlocked (OFF) status, determined from locking
detection switch in front door LH.
CDL UNLOCK SW “ON/OFF”Displays “Door unlocked (OFF)” status, determined from locking detection switch in pas-
senger’s door.