2008 NISSAN LATIO warning

BL-100
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
1.CHECK FUNCTION OF INTELLIGENT KEY SYSTEM
Check if the function related to Intelligent Key system operates normally.
All functions of Intelligent Key system do not operate>>GO TO BL-103, "
Trouble Diagnosis Symptom Chart".
Specific function of Intelligent Key system does not operate>>GO TO 2.
2.CHECK POWER DOOR LOCK OPERATION
Check if door lock/unlock function operates with door lock and unlock switch.
OK or NG
OK >> GO TO 3.
NG >> GO TO BL-22
.
3.CHECK DOOR REQUEST SWITCH OPERATION
Check if door lock/unlock function operates with request switch.
OK or NG
OK >> GO TO 4.
NG >> GO TO BL-103, "
Trouble Diagnosis Symptom Chart".
4.CHECK REMOTE KEYLESS FUNCTION
Check if the following function responds with Intelligent Key button.
• Door lock/unlock function
• Panic alarm function
OK or NG
OK >> GO TO 5.
NG >> GO TO BL-103, "
Trouble Diagnosis Symptom Chart".
5.CHECK HAZARD AND BUZZER REMINDER FUNCTION
Check if hazard and buzzer reminder function responds with the following switches.
• Door request switch
• Intelligent Key button
OK or NG
OK >> GO TO 6.
NG >> GO TO BL-103, "
Trouble Diagnosis Symptom Chart".
6.CHECK WARNING CHIME FUNCTION
Check if warning chime function operates normally according to system description. Refer to BL-76, "
System
Description".
OK or NG
OK >> GO TO 7.
NG >> GO TO BL-103, "
Trouble Diagnosis Symptom Chart".
7.CHECK WARNING LAMP FUNCTION
Check if warning lamp could be turn on normally according to system description. Refer to BL-76, "
System
Description".
OK or NG
OK >> End of inspection.
NG >> GO TO BL-103, "
Trouble Diagnosis Symptom Chart".
CONSULT-III Functions (INTELLIGENT KEY)INFOID:0000000001704009
CONSULT-III can display each diagnostic item using the diagnostic test modes as shown below.

BL-102
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
* : Sedan
WORK SUPPORT
Te s t i t e m D e s c r i p t i o n
DOOR LOCK/UNLOCKThis test is able to check door lock/unlock operation.
• The all door lock actuators are unlocked when “ALL UNLK” on CONSULT-III screen is touched.
• The all door lock actuators are locked when “LOCK” on CONSULT-III screen is touched.
ANTENNAThis test is able to check Intelligent Key antenna operation.
When the following conditions are met, hazard warning lamps flash.
• Inside key antenna (front console) detects Intelligent Key, when “ROOM ANT1” on CONSULT-
III screen is touched.
• Inside key antenna (instrument panel and rear floor) detects Intelligent Key, when “ROOM
ANT2” on CONSULT-III screen is touched.
• Outside key antenna (driver side) detects Intelligent Key, when “DRIVER ANT” on CONSULT-III
screen is touched.
• Outside key antenna (passenger side) detects Intelligent Key, when “ASSIST ANT” on CON-
SULT-III screen is touched.
• Outside key antenna (rear bumper) detects Intelligent Key, when “BK DOOR ANT” on CON-
SULT-III screen is touched.
OUTSIDE BUZZER(S)
(DRIVER DOOR), (TRUNK)
*This test is able to check Intelligent Key warning buzzer operation.
Intelligent Key warning buzzer sounds when “ON” on CONSULT-III screen is touched.
INSIDE BUZZER
(CHIME)This test is able to check Intelligent Key warning chime (Instrument panel) operation.
• Take away warning chime sounds when “TAKE OUT” on CONSULT-III screen is touched.
• Ignition switch warning chime sounds when “KNOB” on CONSULT-III screen is touched.
• Ignition key warning chime sounds when “KEY” on CONSULT-III screen is touched.
INDICATORThis test is able to check warning lamp operation.
• “KEY” Warning lamp (Green) illuminates when “BLUE ON” on CONSULT-III screen is touched.
• “KEY” Warning lamp (Red) illuminates when “RED ON” on CONSULT-III screen is touched.
• “LOCK” Warning lamp illuminates when “KNOB ON” on CONSULT-III screen is touched.
• “KEY” Warning lamp (Green) flashes when “BLUE IND” on CONSULT-III screen is touched.
• “KEY” Warning lamp (RED) flashes when “BLUE IND” on CONSULT-III screen is touched.
• “P-SHIFT” Warning lamp flashes when “KNOB ON” on CONSULT-III screen is touched.
Monitor item Description
CONFIRM KEY FOB ID It can be checked whether Intelligent Key ID code is registered or not in this mode.
TAKE OUT FROM WINDOW
WARNTake away warning chime (from window) mode can be changed to operate (ON) or not operate
(OFF) with this mode. The operation mode will be changed when “CHANGE SETT” on CONSULT-
III screen is touched.
LOW BAT OF KEY FOB WARNIntelligent Key low battery warning mode can be changed to operate (ON) or not operate (OFF)
with this mode. The operation mode will be changed when “CHANGE SETT” on CONSULT-III
screen is touched.
ANSWER BACK FUNCTIONBuzzer reminder function mode by Intelligent button can be changed to operate (ON) or not oper-
ate (OFF) with this mode. The operation mode will be changed when “CHANGE SETT” on CON-
SULT-III screen is touched.
SELECTIVE UNLOCK FUNC-
TIONSelective unlock function mode can be changed to operate (ON) or not operate (OFF) with this
mode. The operation mode will be changed when “CHANGE SETT” on CONSULT-III screen is
touched.
ANTI KEY LOCK IN FUNCTIONKey reminder function mode can be changed to operate (ON) or not operate (OFF) with this mode.
The operation mode will be changed when “CHANGE SETT” on CONSULT-III screen is touched.
HORN WITH KEYLESS LOCKHorn reminder function mode by Intelligent Key remote control button can be changed to operate
(ON) or not operate (OFF) with this mode. The operation mode will be changed when “CHANGE
SETT” on CONSULT-III screen is touched.
HAZARD ANSWER BACKHazard reminder function mode can be selected from the following with this mode. The operation
mode will be changed when “CHANGE SETT” on CONSULT-III screen is touched.
• LOCK ONLY: Door lock operation only
• UNLOCK ONLY: Door unlock operation only
• LOCK/UNLOCK: Lock/Unlock operation
• OFF: Non-operation

INTELLIGENT KEY SYSTEM
BL-103
< SERVICE INFORMATION >
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Trouble Diagnosis Symptom ChartINFOID:0000000001704012
KEY WARNING LAMP (GREEN) ILLUMINATES
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-99,
"Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check systems shown in the “Diagnoses/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)
• Intelligent Key is registered.
• Key is not inserted in ignition switch.
• One or more registered Intelligent Keys are in the vehicle.
KEY WARNING LAMP (RED) ILLUMINATES
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-99,
"Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check systems shown in the “Diagnoses/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)
• Intelligent Key is registered.
ANSWER BACK WITH I-KEY
LOCKBuzzer reminder function (lock operation) mode by door request switch (driver side, passenger
side and back door side) can be selected from the following with this mode. The operation mode
will be changed when “CHANGE SETT” on CONSULT-III screen is touched.
• BUZZER: Sound buzzer
• OFF: Non-operation
ANSWER BACK WITH I-KEY UN-
LOCKBuzzer reminder function (unlock operation) mode by door request switch can be changed to op-
erate (ON) or not operate (OFF) with this mode.
AUTO RELOCK TIMERAuto door lock timer mode can select the following with this mode.
• 1 minute
• OFF: Non-operation
PANIC ALARM DELAYPanic alarm button's pressing time on Intelligent Key remote control button can be selected from
the following with this mode. The operation mode will be changed when “CHANGE SETT” on
CONSULT-III screen is touched.
• 0.5 second
• 1.5 second
• OFF: Non-operation
P/W DOWN DELAYUnlock button's pressing time on Intelligent Key remote control button can be selected from the
following with this mode. The operation mode will be changed when “CHANGE SETT” on CON-
SULT-III screen is touched.
• 3 seconds
• 5 seconds
• OFF: Non-operation
ENGINE START BY I-KEYEngine start function mode can be changed to operate (ON) or not operate (OFF) with this mode.
The operation mode will be changed when “CHANGE SETT” on CONSULT-III screen is touched.
LOCK/UNLOCK BY I-KEYDoor lock/unlock function by door request switch (driver side, passenger side and back door side)
mode can be changed to operate (ON) or not operate (OFF) with this mode. The operation mode
will be changed when “CHANGE SETT” on CONSULT-III screen is touched. Monitor item Description
Symptom Diagnosis/service procedure Reference page
Ignition switch does not turn on with Intelligent Key.
[KEY warning lamp (green) illuminates].1. Check steering lock solenoid.BL-131
2. Replace Intelligent Key unit.BL-142

BL-104
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
• Key is not inserted in ignition switch.
• One or more registered Intelligent Keys are in the vehicle.
KEY WARNING LAMP DOES NOT ILLUMINATE
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-99,
"Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check systems shown in the “Diagnoses/service procedure” col-
umn in this order.
• Check if ignition switch turns using mechanical key. If it turns, check if “ENGINE START BY I-KEY” in
“WORK SUPPORT” mode is ON.
Conditions of Vehicle (Operating Conditions)
• Intelligent Key is registered.
• Mechanical key is out of ignition switch.
• One or more registered Intelligent Keys are in the vehicle.
NON-DTC ITEM
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-99,
"Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check systems shown in the “Diagnoses/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)
• Intelligent Key is registered.
• Multiple mechanical keys are not set in a keyfob.
(If mechanical keys are near the ignition switch, the operation may not work properly.)
ENGINE START CONDITION CHECK
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-99,
"Trouble Diagnosis Procedure".
Symptom Diagnosis/service procedure Reference page
Ignition switch does not turn on with Intelligent Key.
[KEY warning lamp (red) illuminates].1. Check inside key antenna.BL-129
2. Replace Intelligent Key unit.BL-142
Symptom Diagnosis/service procedure Reference page
Ignition switch does not turn on with Intelligent Key.
[GREEN key warning lamp does not illuminate].1. Check Intelligent Key unit power supply and ground cir-
cuit.BL-110
2. Check ignition knob switch.BL-113
3. Check key switch.BL-110
4. Check "KEY" warning lamp (GREEN).BL-139
5. Replace Intelligent Key unit.BL-142
RED key warning lamp does not illuminate
[Without Intelligent Key].1. Check "KEY" warning lamp (RED).BL-139
2. Replace Intelligent Key unit.BL-142
Symptom Diagnosis/service procedure Reference page
Non DTC Item1. Check key switch.BL-110
2. Check NATS antenna amp.BL-210

INTELLIGENT KEY SYSTEM
BL-107
< SERVICE INFORMATION >
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HAZARD AND BUZZER REMINDER FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-99,
"Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• Ignition switch is not depressed.
• All doors are closed.
WARNING CHIME/BUZZER FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-99,
"Trouble Diagnosis Procedure".
Key reminder function does not operate.1. Check door switch (hatchback).BL-114
2. Check door switch (sedan).BL-117
3. Check inside key antenna.BL-129
4. Check unlock sensor.BL-124
5. Check Intelligent Key battery.BL-142
6. Replace Intelligent Key unit.BL-142
Panic alarm function does not operate.1. Check “PANIC ALARM DELAY” setting in “WORK SUPPORT”.BL-101
2. Check Intelligent Key battery inspection.BL-142
3. Check horn function.BL-140
4. Check headlamp function.BL-141
5. Check key switch.BL-110
6. Check ignition knob switch.BL-113
7. Replace Intelligent Key unit.BL-142
Symptom Diagnosis/service procedureReference
page
Symptom Diagnosis/service procedure Reference page
Hazard reminder does not operate by request
switch.
(Buzzer reminder operate).1. Check “HAZARD ANSWER BACK” setting in “WORK
SUPPORT”.BL-101
2. Check hazard function with hazard switch.BL-140
3. Replace Intelligent Key unit.BL-142
Buzzer reminder does
not operate by request
switch.
(Hazard reminder oper-
ates).Intelligent Key
warning buzzer
does not operate.1. Check “ANSER BACK WITH I-KEY LOCK” or “ANSER
BACK WITH I-KEY UNLOCK” setting in “WORK SUP-
PORT”.BL-101
2. Check Intelligent Key warning buzzer(s).BL-125
3. Replace Intelligent Key unit.BL-142
Hazard reminder does not operate by Intelli-
gent Key (door lock/unlock button).
(Buzzer reminder operates properly).1. Check “HAZARD ANSWER BACK” setting in “WORK
SUPPORT”.BL-101
2. Check hazard function with hazard switch.BL-140
3. Replace Intelligent Key.BL-142
Buzzer reminder does
not operate by Intelligent
Key (door lock/unlock
button).
(Hazard reminder oper-
ates).Intelligent Key
warning buzzer
does not operate.1. Check “HORN WITH KEYLESS LOCK” setting in “WORK
SUPPORT”.BL-101
2. Check Intelligent Key warning buzzer(s).BL-125
3. Replace Intelligent Key unit.BL-142

BL-108
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
Warning chime/buzzer functions operating condition is extremely complicated, during operating confirmations,
reconfirm the list above twice in order to ensure proper operation.
Symptom Diagnosis/service procedure Reference page
Ignition switch warning chime does not oper-
ate.1. Check ignition knob switch.BL-113
2. Check door switch (hatchback).BL-114
3. Check door switch (sedan).BL-117
4. Check key switch.BL-110
5. Check Intelligent Key warning chime.BL-140
6. Replace Intelligent Key unit.BL-142
Ignition key warning chime does not operate.
(When mechanical key used).1. Check key switch (Intelligent Key unit input).BL-110
2. Check key switch (BCM input).BL-112
3. Check door switch (hatchback).BL-114
4. Check door switch (sedan).BL-117
5. Check Intelligent Key warning chime.BL-140
6. Replace Intelligent Key unit.BL-142
OFF position warning chime (For internal)
does not operate.1. Check ignition switch position.BL-134
2. Check ignition knob switch.BL-113
3. Check key switch.BL-110
4. Check combination meter warning chime.BL-140
5. Replace Intelligent Key unit.BL-142
OFF position warning
chime/buzzer (for ex-
ternal) does not oper-
ate.Both Intelligent Key
warning chime and
buzzer do not oper-
ate.1. Check ignition switch position.BL-134
2. Check ignition knob switch.BL-113
3. Check key switch.BL-110
4. Check Intelligent Key warning chime.BL-140
5. Check Intelligent Key warning buzzer(s).BL-125
6. Replace Intelligent Key unit.BL-142
Intelligent Key warn-
ing buzzer does not
operate.Check Intelligent Key warning buzzer(s).BL-125
Take away warning
chime/buzzer (door
open to close) does
not operate.Both Intelligent Key
warning chime and
buzzer do not oper-
ate.1. Check door switch (hatchback).BL-114
2. Check door switch (sedan).BL-117
3. Check inside key antenna.BL-129
4. Check key switch.BL-110
5. Check Intelligent Key warning chime.BL-125
6. Check Intelligent Key warning buzzer(s).BL-125
7. Replace Intelligent Key unit.BL-142
Intelligent Key warn-
ing buzzer does not
operate.Check Intelligent Key warning buzzer(s).BL-125

INTELLIGENT KEY SYSTEM
BL-109
< SERVICE INFORMATION >
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PWARNING LAMP FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-99,
"Trouble Diagnosis Procedure".
• If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” column
in this order.
CAN Communication System InspectionINFOID:0000000001704013
1.CHECK SELF-DIAGNOSTIC RESULTS
Take away warning chime (through window)
does not operate.1.Check “TAKE OUT FROM WINDOW WARN” setting in
“WORK SUPPORT”.BL-101
2. Check inside key antenna.BL-129
3. Check key switch.BL-110
4. Check Intelligent Key battery.BL-142
5. Check Intelligent Key warning chime.BL-140
6. Replace Intelligent Key unit.BL-142
Door lock operation warning buzzer does not
operate.1. Check door switch (hatchback).BL-114
2. Check door switch (sedan).BL-117
3. Check ignition knob switch.BL-113
4. Check door request switch.BL-118
5. Check back door request switch (hatchback).BL-120
6. Check trunk opener request switch (sedan).BL-122
7. Check outside key antenna (driver side and passenger side).BL-126
8. Check outside key antenna (rear bumper).BL-128
9. Check inside key antenna.BL-129
10. Check Intelligent Key warning buzzer(s).BL-125
11. Replace Intelligent Key unit.BL-142
One warning buzzer does not operate (se-
dan).Check Intelligent Key warning buzzer(s).BL-125
Symptom Diagnosis/service procedure Reference page
Symptom Diagnosis/service procedure Reference page
When Intelligent Key low battery warning operate, “KEY”
warning lamp (green) does not illuminate.1.Check “LOW BAT OF KEY FOB WARN” set-
ting in “WORK SUPPORT”.BL-101
2. Check Intelligent Key battery.BL-142
3. Check KEY warning lamp (green).BL-139
4. Replace Intelligent Key unit.BL-142
P position warning lamp does not illuminate properly.
(With CVT)1. Check CVT device (park position switch).BL-1362. Check “P-SHIFT” warning lamp (red).BL-138
3. Replace Intelligent Key unit.BL-142
LOCK warning lamp does not illuminate properly.
(With M/T)1. Check key interlock solenoid.BL-1332. Check "LOCK" warning lamp.BL-138
3. Replace Intelligent Key unit.BL-142
Take away warning lamp does not illuminate properly.
(Take away warning chime is operated).1. Check KEY warning lamp (red).BL-142
2. Replace Intelligent Key unit.BL-142
Ignition switch warning lamp does not illuminate properly.
(Ignition switch warning chime is operated).1. Check KEY warning lamp (red).BL-139
2. Replace Intelligent Key unit.BL-142

INTELLIGENT KEY SYSTEM
BL-125
< SERVICE INFORMATION >
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OK or NG
OK >> GO TO 4.
NG >> Replace unlock sensor.
4.CHECK UNLOCK SENSOR GROUND CIRCUIT
Check continuity between front door lock actuator LH (door unlock sensor) connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
5.CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1. Connect Intelligent Key unit harness connector.
2. Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Replace front door lock actuator LH (door unlock sen-
sor). Refer to BL-150, "
Removal and Installation".
NG >> Replace Intelligent Key unit. Refer to BL-142, "
Removal
and Installation of Intelligent Key Unit".
Intelligent Key Warning Buzzer(s) CheckINFOID:0000000001704024
1.CHECK INTELLIGENT KEY WARNING BUZZER POWER SUPPLY CIRCUIT
1. Disconnect inoperative Intelligent Key warning buzzer connector.
2. Check voltage between Intelligent Key warning buzzer connector and ground.
OK or NG
OK >> GO TO 2.
Te r m i n a l
Driver side door
conditionContinuity
Unlock sensor
45Lock No
Unlock Yes
PIIB6643E
Front door lock actua-
tor LH (door unlock
sensor) connectorTe r m i n a l
GroundContinuity
D3 5 Yes
PIIB6644E
Te r m i n a l s
Voltage (V)
(Approx.) (+)
(–)
Intelligent Key unit
connectorTe r m i n a l
M52 28 Ground 5
PIIB6638E
Te r m i n a l s
Voltage (V)
(Approx.) (+)
(–)
Intelligent Key warning buzzer
connectorTerminal
Front door LH D6
1 Ground Battery voltage
Trunk (sedan) B32
PIIB6622E