2008 NISSAN LATIO warning

BL-126
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
NG >> Repair or replace Intelligent Key warning buzzer power supply circuit.
2.CHECK INTELLIGENT KEY WARNING BUZZER CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector and inoperative Intelligent Key warning buzzer
connector.
3. Check continuity between Intelligent Key unit connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between Intelligent Key unit and Intelligent Key warning buzzer.
3.CHECK INTELLIGENT KEY WARNING BUZZER OPERATION
Connect battery power supply to Intelligent Key warning buzzer terminals 1 and 2, and check the operation.
OK or NG
OK >> Intelligent Key warning buzzer is OK.
NG >> Replace inoperative Intelligent Key warning buzzer.
Outside Key Antenna (Driver Side and Passenger Side) CheckINFOID:0000000001704025
1.CHECK OUTSIDE KEY ANTENNA FUNCTION
With CONSULT-III
1. Check the operation with (“ANTENNA”) in the ACTIVE TEST.
2. Touch “DRIVER ANT” and “ASSIST ANT” on screen.
3. Carry the Intelligent Key into the antenna detection area.
Do the hazard lamps flash?
Yes >> Outside key antenna (driver side or passenger side) is OK.
No >> GO TO 2.
2.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
AB
Continuity Intelligent
Key unit
connectorTe r m i n a lIntelligent Key warning
buzzer connectorTe r m i n a l
M52 4Front door LH D6
2Yes
Trunk (sedan) B32
A
GroundContinuity
Intelligent Key unit con-
nectorTerminal
M52 4 No
PIIB6623E
1 (BAT+) - 2 (BAT-) : the buzzer sounds
PIIB6624E
Test item Corresponding antenna
DRIVER ANT Outside key antenna driver side
ASSIST ANT Outside key antenna passenger side

BL-138
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
OK >> GO TO 5.
NG >> Repair or replace harness.
5.CHECK INTELLIGENT KEY OUTPUT SIGNAL
1. Connect Intelligent Key unit connector and CVT device (park position switch) connector.
2. Check voltage between Intelligent Key unit connector M52 terminal 10 and ground.
OK or NG
OK >> CVT device (park position switch) circuit is OK.
NG >> Replace Intelligent Key unit. Refer to BL-142, "
Removal
and Installation of Intelligent Key Unit".
"P-SHIFT" Warning Lamp (With CVT) CheckINFOID:0000000001704034
1.CHECK WARNING LAMP OPERATION
With CONSULT-III
• Check “INDICATOR” in “ACTIVE TEST” mode with CONSULT-III.
• Select “KNOB ON”.
“P-SHIFT” warning lamp should illuminate.
Without CONSULT-III
1. Turn ignition switch OFF.
2. While monitoring the combination meter warning lamps, turn
ignition switch ON. "P-SHIFT" warning lamp should illuminate
for 1 second to perform a bulb check.
OK or NG
OK >> INSPECTION END
NG >> Check combination meter. Refer to DI-4
.
"LOCK" Warning Lamp (With M/T) CheckINFOID:0000000001704035
1.CHECK WARNING LAMP OPERATION
With CONSULT-III
• Check “INDICATOR” in “ACTIVE TEST” mode with CONSULT-III.
• Select “KNOB ON”.
“LOCK” warning lamp should illuminate.
Without CONSULT-III
1. Turn ignition switch OFF.
ConnectorTe r m i n a l
ConditionVoltage (V)
(Approx.)
(+) (-)
M52 10 GroundSelector lever is in “P” position 0
Other than above Battery voltage
WIIA1258E
WIIA1262E

INTELLIGENT KEY SYSTEM
BL-139
< SERVICE INFORMATION >
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2. While monitoring the combination meter warning lamps, turn
ignition switch ON. "LOCK" warning lamp should illuminate for 1
second to perform a bulb check.
OK or NG
OK >> INSPECTION END
NG >> Check combination meter. Refer to DI-4
.
"KEY" Warning Lamp (RED) CheckINFOID:0000000001704036
1.CHECK WARNING LAMP OPERATION
With CONSULT-III
• Check “INDICATOR” in “ACTIVE TEST” mode with CONSULT-III.
• Select “RED ON”.
“KEY” warning lamp (red) should illuminate.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Ensure Intelligent Key is outside and away from the vehicle.
3. While monitoring the combination meter warning lamps, push
the ignition knob switch.
4. The "KEY" warning lamp (red) should illuminate indicating that
the Intelligent Key is not nearby.
OK or NG
OK >> INSPECTION END
NG >> Check combination meter. Refer to DI-4
.
"KEY" Warning Lamp (GREEN) CheckINFOID:0000000001704037
1.CHECK WARNING LAMP OPERATION
With CONSULT-III
• Check “INDICATOR” in “ACTIVE TEST” mode with CONSULT-III.
• Select “BLUE ON”.
“KEY” warning lamp (green) should illuminate.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Ensure Intelligent Key is in your possession inside the vehicle.
WIIA1263E
WIIA1264E

BL-140
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
3. While monitoring the combination meter warning lamps, push
the ignition knob switch.
4. The "KEY" warning lamp (green) should illuminate indicating
that the Intelligent Key is nearby.
OK or NG
OK >> INSPECTION END
NG >> Check combination meter. Refer to DI-4
.
Check Warning Chime in Combination MeterINFOID:0000000001704038
1.CHECK WARNING CHIME OPERATION
With CONSULT-III
• Check “INSIDE BUZZER” in “ACTIVE TEST” mode with CONSULT-III.
• Touch “TAKE OUT”, “KNOB” and “KEY” on “ACTIVE TEST” screen.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
2.CHECK OTHER WARNING CHIME OPERATION
Check other warning chime operation using combination meter.
OK or NG
OK >> INSPECTION END
NG >> GO TO DI-41
.
Hazard Function CheckINFOID:0000000001704039
1.CHECK HAZARD WARNING LAMP
Do hazard warning lamps flash with hazard switch?
YES or NO
YES >> Hazard warning lamp circuit is OK.
NO >> Check hazard circuit. Refer to LT- 4 8
.
Horn Function CheckINFOID:0000000001704040
First perform the “SELF-DIAG RESULTS” of “BCM” with CONSULT-III, then perform the trouble diag-
nosis of malfunction system indicated in “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-17, "
CAN
Communication Inspection Using CONSULT-III (Self-Diagnosis)".
1.CHECK HORN OPERATION
Check if horn sounds with horn switch.
Does horn operate?
Ye s > > G O T O 2 .
No >> Check horn circuit. Refer to WW-37
.
WIIA1264E
Does each warning chime sound?
Does warning chime in combination meter sound?

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-187
< SERVICE INFORMATION >
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VEHICLE SECURITY (THEFT WARNING) SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000001704083
LIIA2919E
1. Horn relay H-1 2. BCM M18, M19, M20
(view with glove box removed)3. Intelligent Key unit M52
(with Intelligent Key)
4. Combination meter M24 5. Security indicator lamp 6. Front door key cylinder switch LH
D14
7. Front door switch LH B8, RH B108 8. Rear door switch LH B6, RH B116 9. Back door lock assembly (back door
switch) D405 (hatchback view with
back door open)

BL-188
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
System Description
INFOID:0000000001704084
DESCRIPTION
Operation Flow

Setting the vehicle security system
Initial condition• Ignition switch is in OFF position.
Disarmed phase• When the vehicle is being driven or when any door or trunk (sedan) is open, the vehicle security system is
set in the disarmed phase on the assumption that the owner is inside or near the vehicle.
Pre-armed phase and armed phase• The vehicle security system turns into the "pre-armed" phase (security lamp illuminates) when the BCM
receives LOCK signal from front door key cylinder switch, keyfob or Intelligent Key after all doors and trunk
(sedan) are closed.
• All doors and trunk (sedan) are closed after front doors are locked by key or door lock and unlock switch.
The security indicator lamp illuminates for 30 seconds. then, the system automatically shifts into the "armed"
phase.
Canceling the set vehicle security system
Armed phase is canceled when the driver unlocks the doors or the trunk (sedan) with the key, keyfob or Intelli-
gent Key.
Activating the alarm operation of the vehicle security system
Make sure the system is in the armed phase.
When one of the following operations is performed, the system sounds the horns and flashes the headlamps
for about 50 seconds.
1. Any door is opened before unlocking door with key, keyfob or Intelligent Key.
2. Door is unlocked without using key, keyfob or Intelligent Key.
3. Trunk (sedan) is opened without using the key, trunk lid opener switch, keyfob or Intelligent Key (sedan).
POWER SUPPLY AND GROUND
Power is supplied at all times• through 10A fuse [No.13, located in the fuse block (J/B)]
10. Trunk lamp switch and trunk release
solenoid B127
(sedan view with trunk open)11. Trunk key cylinder switch B142 12. Main power window and door lock/
unlock switch D7, D8
Power window and door lock/unlock
switch RH D105
13. Horn (low) E18, E20 14. Horn (high) E21, E22
PIIA1367E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-189
< SERVICE INFORMATION >
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• to combination meter terminal 27 (security indicator lamp)
• through 40A fusible link (letter g, located in the fuse and fusible link box)
• to BCM terminal 70
• through 10A fuse [No. 8, located in the fuse block (J/B)]
• to BCM terminal 57
• through 10A fuse (No. 28, located in the fuse and fusible link box)
• to horn relay terminal 2
• through 15A fuse (No. 52, located in the IPDM E/R)
• to IPDM E/R internal CPU.
• through 20A fuse (No. 53, located in the IPDM E/R)
• to IPDM E/R internal CPU.
With the ignition switch in the ACC or ON position, power is supplied• through 10A fuse [No. 20, located in the fuse block (J/B)]
• to BCM terminal 11.
With the ignition switch in the ON or START position, power is supplied• through 10A fuse [No. 6, located in the fuse block (J/B)]
• to BCM terminal 38.
Ground is supplied• to BCM terminal 67
• through body grounds M57 and M61.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the vehicle security system is controlled by the doors and trunk (sedan).
To activate the vehicle security system, BCM must receive signals indicating the ignition switch is OFF, doors
and trunk (sedan) are closed and locked.
When a door or trunk (sedan) is open, BCM terminal 12, 13, 42, 43, 47 or 48 receives a ground signal from
each door or trunk switch. In addition to BCM, when back door is open, the Intelligent Key unit terminal 23
receives a ground signal from back door or trunk (sedan) through BCM terminal 30.
When front door LH is unlocked, BCM terminal 46 receives a signal from terminal 6 of main power window and
door lock/unlock switch.
When front door RH is unlocked, BCM terminal 46 receives a signal from terminal 2 of power window and door
lock/unlock switch RH.
VEHICLE SECURITY SYSTEM ALARM OPERATION
The vehicle security system is triggered by
• Opening a door without using the key, keyfob or Intelligent Key.
• Opening trunk without using the key, keyfob or Intelligent Key (sedan).
The vehicle security system will be triggered once the system is in armed phase,
• when BCM receives a ground signal at terminals 12, 13, 47, 48 (front or rear door switch), terminal 42
(sedan, trunk switch) or terminal 43 (hatchback, back door switch).
When the vehicle security system is triggered, ground is supplied intermittently
• from IPDM E/R terminal 45
• to horn relay terminal 1.
The headlamps flash and the horn sounds intermittently.
The alarm automatically turns off after 50 seconds, but will reactivate if the vehicle is tampered with again.
VEHICLE SECURITY SYSTEM DEACTIVATION
To deactivate the vehicle security system, a door or trunk (sedan) must be unlocked with the key, keyfob or
Intelligent Key.
When the key is used to unlock the driver door, BCM terminal 7 receives signal
• from terminal 3 of the front door key cylinder switch LH.
When the key is used to open the trunk (sedan), BCM terminal 41 receives signal
• from terminal 1 of the trunk key cylinder switch.
When the BCM receives an unlock signal from keyfob, Intelligent Key, front door key cylinder switch LH or
trunk key cylinder switch (sedan), the vehicle security system is deactivated (Disarmed phase).
PANIC ALARM OPERATION
Intelligent Key and remote keyless entry system may or may not operate vehicle security system (horn and
headlamps) as required.
When the remote keyless entry system is triggered, ground is supplied intermittently

BL-190
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
• from IPDM E/R terminal 45
• to horn relay terminal 1.
The headlamp flashes and the horn sounds intermittently.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob or Intelligent
Key.
CAN Communication System DescriptionINFOID:0000000001704085
Refer to LAN-6.