NISSAN LATIO 2010 Service Repair Manual

LT-96
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
• to map lamp terminal 1
Power is supplied
• through BCM terminal 56
• to map lamp terminal 4.
When interior room lamp switch is ON, ground is supplied
• to interior room lamp terminal 1
• through map lamp (with map lamp) terminal 7
• through map lamp (with map lamp) terminal 1
• through grounds M57 and M61.
Power is supplied
• through BCM terminal 56
• through map lamp (with map lamp) terminal 4
• through map lamp (with map lamp) terminal 6
• to room lamp terminal 3.
INTERIOR ROOM LAMP TIMER OPERATION
Without Intelligent Key System
When room lamp switch is in DOOR position, and when all conditions below are met, BCM performs timer
control (maximum 30 seconds) for room lamp ON/OFF.
In addition, when the interior room lamp turns ON or OFF there is gradual brightening or dimming over 1 sec-
ond.
Power is supplied
• through 10A fuse [No. 14, located in fuse block (J/B)]
• to key switch and key lock solenoid terminal 2.
When the key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM termi-
nal 37.
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 that front door LH is opened, BCM detects that front door LH is unlocked. It determines that interior
room lamp timer operation condition is met, and turns the room lamp ON for 30 seconds.
When key is in ignition key cylinder (key switch ON),
Power is supplied
• through key switch and key lock solenoid terminal 1
• to BCM terminal 37.
When key is removed from key switch and key lock solenoid (key switch OFF), the power supply to BCM ter-
minal 37 is terminated. BCM detects that key has been removed, determines that interior room lamp timer
conditions are met, and turns the room lamp ON for 30 seconds.
When front door LH opens → closes, and the key is not inserted in the key switch and key lock solenoid (key
switch OFF), voltage at BCM terminal 47 changes between 0V (door open) → 12V (door closed). The BCM
determines that conditions for room lamp operation are met and turns the room lamp ON for 30 seconds.
Interior room lamp timer control is canceled under the following conditions:
• Front door LH is locked (locked by front door key cylinder switch LH, keyfob or door lock/unlock switch).
• Front door LH is opened (front door switch LH).
• Ignition switch ON.
With Intelligent Key System
When the room lamp switch is in DOOR position, and when all conditions below are met, BCM performs timer
control (maximum 30 second) for room lamp ON/OFF.
In addition, when interior room lamp turns ON or OFF there is gradual brightening or dimming over 1 second.
Power is supplied
• through 10A fuse (No. 31, located in fuse and fusible link box)
• to key switch and ignition knob switch terminals 2 and 4.
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
Revision: January 20102010 Versa

INTERIOR ROOM LAMPLT-97
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
LT
N
O P
• 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, front door ke y cylinder switch LH or door lock/unlock switch).
• 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-III.
Revision: January 20102010 Versa

LT-98
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
Schematic
INFOID:0000000005394988
WKWA5812E
Revision: January 20102010 Versa

INTERIOR ROOM LAMPLT-99
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
LT
N
O P
Wiring Diagram - INT/L -INFOID:0000000005394989
ABLWA0671GB
Revision: January 20102010 Versa

LT-100
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
WKWA5814E
Revision: January 20102010 Versa

INTERIOR ROOM LAMPLT-101
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
LT
N
O P
LKWA0341E
Revision: January 20102010 Versa

LT-102
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
WITHOUT MAP LAMPS
ABLWA0681GB
Revision: January 20102010 Versa

INTERIOR ROOM LAMPLT-103
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
LT
N
O P
WITH MAP LAMPS
Terminal and Reference Value for BCMINFOID:0000000005394990
Refer to BCS-12, "Terminal and Reference Value for BCM" .
How to Proceed with Trouble DiagnosisINFOID:0000000005394991
1. Confirm the symptom or customer complaint.
ABLWA0682GB
Revision: January 20102010 Versa

LT-104
< SERVICE INFORMATION >
INTERIOR ROOM LAMP
2. Understand operation description and function description. Refer to LT-94, "System Description" .
3. Perform the preliminary check. Refer to LT-104, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of the malfunction.
5. Does the interior room lamp operate norma lly? If YES, GO TO 6. If NO, GO TO 4.
6. Inspection End
Preliminary CheckINFOID:0000000005394992
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to BCS-16, "BCM Power Supply and Ground Circuit Inspection" .
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR IPDM E/R
Refer to PG-27, "IPDM E/R Power/Ground Circuit Inspection" .
CONSULT-III Function (BCM)INFOID:0000000005613053
CONSULT-III can display each diagnostic item us ing the diagnostic test modes shown following.
ITEMS OF EACH PART
NOTE:
CONSULT-III will only display systems the vehicle possesses.
BCM diagnostic
test item Diagnostic mode
Content
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 DIAGNOSTIC RE- SULT Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.
ECU IDENTIFICATION BCM part number can be read. CONFIGURATION Performs BCM configuration read/write functions.
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
BCM BCM×× × × ×
Power door lock sys-
tem DOOR LOCK
×× ×
Rear defogger REAR DEFOG-
GER
××
Warning chime BUZZER ××
Room lamp timer INT LAMP ×× ×
Remote keyless entry
system MULTI REMOTE
ENT
××
×
Headlamp HEAD LAMP×× ×
Wiper WIPER×× ×
Turn signal lamp
Hazard lamp FLASHER
××
Revision: January 20102010 Versa

INTERIOR ROOM LAMPLT-105
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
LT
N
O P
WORK SUPPORT
Display Item List
Interior Room Lamp Control D oes Not Operate (With Map Lamp)INFOID:0000000005394994
1.CHECK EACH SWITCH
Select "BCM" on CONSULT-III. With "I NT LAMP" data monitor, make sure switches listed in display item list
turn ON-OFF linked with switch operation. Refer to BCS-17, "
CONSULT-III Function (BCM)" for switches and
their functions.
OK or NG
OK >> GO TO 2.
NG >> Inspect malfunctioning switch system.
2.ACTIVE TEST
1. Select “BCM” on CONSULT-III. Se lect “INT LAMP" active test.
2. When room lamp switch is in DOOR pos ition, make sure room lamp operates.
OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installation of BCM" .
NG >> GO TO 3.
3.CHECK ROOM LAMP INPUT VOLTAGE
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 switch 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.
Room lamp should operate.
Revision: January 20102010 Versa