2009 NISSAN LATIO steering

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Even if Intelligent Key battery runs down, Intelligent
key unit can start engine with mechanical key built Intelli-
gent Key. For details, refer to BL-248 .
All of the originally supplied Intelligent Key IDs (exc ept for key) have been registered in Intelligent Key system.
If requested by the vehicle owner, a maximum of four Intelligent Key IDs can be registered into the Intelligent
Key system components.
List of Operation Related Parts Parts marked with × are the parts related to operation.
WARNING CHIME/BUZZER/LAMPS FUNCTION
Operation Description The following warning chime (combination meter), Intelligent Key warning buzzer (front door LH), Intelligent
Key warning buzzer (trunk) *
, warning lamps "KEY" and “P-SHIFT” (with CVT or A/T) or "LOCK" (with M/T) are
given to the user as warning informati on while using the intelligent key system.
• Ignition switch warning chime
• Ignition key warning chime
• OFF position warning chime
• Take away warning chime
• Door lock operation warning chime
• Intelligent key low battery warning
• P position warning (with CVT or A/T)
• LOCK position warning (with M/T) NOTE:
For key-in-ignition warning chime related concerns only, refer to DI-42 .
* : Sedan
Operation Condition Engine start functionsIntelligent Key
Key switch
Ignition knob switch
Inside key antenna
Intelligent Key unit
CAN communication system
BCM
Combination meter
IPDM E/R
NATS antenna amp.
Steering lock solenoid
Engine start function by the Intelligent Key × × × × × × × × × ×
Engine start function by the mechanical key × × × × × × ×

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CHANGE SETTINGS FUNCTION
The settings for each function c an be changed with the CONSULT-III.
Changing Settings Using CONSULT-III The settings for the Intelligent Key system func tions can be changed using CONSULT-III (WORK SUPPORT).
Refer to BL-117, " CONSULT-III Application Item " .
NOTE:
Once a function setting is changed, it will remain effective even if the battery is disconnected.
INTELLIGENT KEY REGISTRATION Intelligent Key-ID registration is performed using the CONSULT-III.
CAUTION:
• After a new Intelligent Key-ID is regi stered, be sure to check the function.
• When registering an additional Intelligent Key-ID , take any Intelligent Keys already registered and
Intelligent Keys for any other vehicles out of the vehicle before starting.
CONSULT-III can be used to check and delete Intelligent Key-IDs.
For further information, see the CONS ULT-III Operation Manual NATS.
STEERING LOCK SOLENOID REGISTRATION
Steering Lock Solenoid ID Registration CAUTION:
• The method for registering a st eering lock solenoid ID depends on the status of the steering lock
solenoid and Intelligent Key unit (new or old unit).
• After registration is completed, press ignition switch with an Intelligent Key in the vehicle so that it
can be turned, and confirm that it cannot be turn ed even when ignition switch is pressed without an
Intelligent Key in the vehicle.
For further information, see the CONSULT- III Operation Manual NATS-IVIS/NVIS.
CAN Communication System Description INFOID:0000000004305033
Refer to LAN-8 .
Warning and alarm functionsIntelligent Key
Key switch
Ignition knob switch
Ignition switch ACC position input signal
Ignition switch ON position input signal
Door switch
Door request switch
Inside key antenna
Outside key antenna (Driver, Passenger)
Outside key antenna (rear bumper)
Intelligent Key warning buzzer(s)
Intelligent Key unit
CAN communication system
BCM
Warning lamp
Warning chime (combination meter)
Ignition switch warning chime × × × × × × ×
Ignition key warning chime
(When mechanical key used) × × × × × ×
OFF position warning chime For internal
× × × × × × × × ×
For external × × × × × × × × ×
Take away warning chime Right after door is
closed × × × × × × × × × ×
Any door is open × × × × × × × × ×
Take away from
window × × × × × × × × × × ×
Door lock operation warning chime × × × × × × × × ×
Intelligent Key low battery warning × × × × × ×

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17 W
Rear bumper antenna
(+) signal
LOCK Press back door request switch.
18 B Rear bumper antenna
(-) signal
19 V Front outside antenna
LH (+) signal
LOCK Press door request switch LH.
20 P Front outside antenna
LH (-) signal
22 *2
BR Key interlock solenoid — With Intelligent Key present or mechanical
key in ignition cylinder, press "PUSH" but-
ton on ignition cylinder. Battery voltage
Other than above 0
23 LG Back door open output — Back door open (switch closed) 0
Back door closed (switch open) 5
24 V Back door opener
switch —Press and hold back door switch. 0
Other than above 5
25 L Front door request
switch RH —Press front door request switch RH. 0
Other than above 5
26 SB Stop lamp switch — Depress brake pedal Battery voltage
Other than above 0
27 W Ignition knob switch — Press ignition switch. Battery voltage
Release ignition switch. 0
28 Y Unlock sensor
(driver side) —Door (driver si
de) is locked. 5
Door (driver side ) is unlocked. 0
29 V Back door request
switch (hatchback) —Press back door request switch. 0
Other than above 5
Trunk opener request
switch (sedan) —Press trunk opener request switch. 0
Other than above 5
31 BR Steering lock solenoid
ground — — 0
32 GR Steering lock solenoid
communication signal LOCKWhen Intelligent Key is inside vehicle,
press ignition knob switch.
Other than above 5
Terminal
Wire
Color Item Condition
Voltage (V)Approx.
Ignition
Switch
Position Operation or Conditions SIIA1911J

BL-110< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
*1: With continuously variable transmissi on (CVT) or automatic transmission (A/T).
*2: With manual transmission (M/T).
Steering Lock Solenoid Harn ess Connector Terminal Layout INFOID:0000000004305038
Terminal and Reference Valu e for Steering Lock Solenoid INFOID:0000000004305039
33 R
Rear floor antenna (+)
signal
LOCK• Any door open
→ all door close
• Press ignition knob switch: ON (Ignition knob switch)
34 G Rear floor antenna (-)
signal
37 BR Front outside antenna
RH (+) signal
LOCK Press door request switch RH.
38 Y Front outside antenna
RH (-) signal
Terminal
Wire
Color Item Condition
Voltage (V)Approx.
Ignition
Switch
Position Operation or Conditions PIIB5502J
SIIA1910J
WIIA1283E
Termi-
nal Wire
Color Signal Designation Condition
Voltage (V)Approx.
Ignition
Switch Posi- tion Operation or Conditions
1 P Battery power supply LOCK — Battery voltage
2 R Steering lock solenoid
power supply LOCK — 5
3 GR Steering lock solenoid
communication signal LOCKWhen Intelligent Key is inside ve-
hicle, press ignition knob switch.
Other than the above 5
4 BR Steering lock solenoid
ground — — 0 SIIA1911J

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• Intelligent Key button
OK or NG OK >> GO TO 6
NG >> Refer to BL-119, " Trouble Diagnosis Symptom Chart " .
System
Description " .
OK or NG OK >> GO TO 7
NG >> Refer to BL-119, " Trouble Diagnosis Symptom Chart " .
System
Description " .
OK or NG OK >> Inspection End.
NG >> Refer to BL-119, " Trouble Diagnosis Symptom Chart " .
CONSULT-III Functions (INTELLIGENT KEY) INFOID:0000000004305042
CONSULT-III can display each diagnostic item using the diagnostic test modes as shown below.
CONSULT-III Application Item INFOID:0000000004305043
SELF-DIAGNOSTIC RESULTS
DATA MONITOR Part to be diagnosed Test item, Diagnosis mode Description
Intelligent Key WORK SUPPORT Changes settings for each function.
SELF-DIAG RESULTS Intelligent Key unit performs CAN communication diagnosis.
DATA MONITOR Displays Intelligent Key unit input data in real time.
CAN DIAGNOSTIC SUPPORT
MONITOR The results of transmit/receive diagnosis of CAN Communication can
be read.
ACTIVE TEST Operation of electrical loads can be checked by sending driving signal
to them.
ECU PART NUMBER Displays Intelligent Key unit part No. Self-diag results Description Diagnosis procedure Reference page
CAN COMM Malfunction is detected in CAN co mmunication. Check CAN communication system. BL-126CAN COMM2 Intelligent Key unit internal malfunction Check CAN communication system.
BL-126STRG COMM
Malfunction is detected in communication of Intelli-
gent Key unit and steering lock solenoid. Check steering lock solenoid.
BL-147I-KEY C/U Intelligent Key unit internal ma
lfunction Replace Intelligent Key unit. BL-158IMMU NATS malfunction Check NATS.
BL-248Monitor item Content
PUSH SW Indicates [ON/OFF] condition of ignition knob switch.
KEY SW Indicates [ON/OFF] condition of key switch.
DR REQ SW Indicates [ON/OFF] condition of door request switch (driver side).
AS REQ SW Indicates [ON/OFF] condition of door request switch (passenger side).
BD/TR REQ SW Indicates [ON/OFF] condition of back door request switch.

115, " 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-115, " 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 DOES NOT ILLUMINATE
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-115, " 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. Symptom Diagnosis/service procedure Reference page
Ignition switch does not turn on with Intelligent Key.
[KEY warning lamp (g reen) illuminates]. 1. Check steering lock solenoid.
BL-147 2. Replace Intelligent Key unit.
BL-158Symptom Diagnosis/service procedure Reference page
Ignition switch does not turn on with Intelligent Key.
[KEY warning lamp (re d) illuminates]. 1. Check inside key antenna.
BL-146 2. Replace Intelligent Key unit.
BL-158Symptom 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-126 2. Check ignition knob switch.
BL-129 3. Check key switch.
BL-127 4. Check "KEY" warn
ing lamp (GREEN). BL-155 5. Replace Intelligent Key unit.
BL-158

INTELLIGENT KEY SYSTEM
BL-147
< SERVICE INFORMATION >
C
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F
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M A
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OK or NG OK >> GO TO 3
NG >> Repair or replace harness between Intelligent Key unit and inside key antenna. 3.
CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2
1. Replace inside key antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit and inside key antenna connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG OK >> Replace malfunction inside key antenna.
NG >> Replace Intelligent Key unit.
Steering Lock Solenoid Check INFOID:00000000043050601.
CHECK STEERING LOCK SOLENOID POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect steering lock solenoid connector.
3. Check voltage between steering lock solenoid and ground.
OK or NG OK >> GO TO 2
NG >> Repair or replace steering lock solenoid power supply
circuit. 2.
CHECK STEERING LOCK SOLENOID GROUND CIRCUIT A
GroundContinuity
Intelligent Key unit
connector Terminal
M52 Instrument panel
13
No
14
Front console 15
16
Rear floor 33
34 Terminals
ConditionSignal
(Reference value.)
(+)
(–)
Intelligent Key unit
connector Ter-
minal
M52 Instrument
panel area 13
Ground Any door
is open →
close
Front con-
sole area 15
Rear floor area 33 WIIA1200E
PIIB5502J
Terminals Voltage (V)(Approx.)
(+)
(–)
Steering lock sole-
noid Terminal
M6 1 Ground Battery voltage PIIB6632E

BL-148< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
Check continuity between steering lock solenoid and ground.
OK or NG OK >> GO TO 3
NG >> GO TO 6 3.
CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1. Connect steering lock solenoid connector.
2. Check voltage between Intelligent Key unit and ground.
OK or NG OK >> GO TO 4
NG >> GO TO 6 4.
CHECK STEERING LOCK COMMUNICATION SIGNAL
Check signal between Intelligent Key unit and ground with oscilloscope.
OK or NG OK >> GO TO 5
NG >> GO TO 6 5.
CHECK STEERING LOCK SOLENOID COMMUNICA TION CIRCUIT FOR OPEN
1. Disconnect Intelligent Key unit and steering lock solenoid connectors.
2. Check continuity between steering lock solenoid and Intelligent Key unit. Steering lock solenoid connector Terminal
GroundContinuity
M6 4 Yes PIIB6633E
Terminals
Voltage (V)(Approx.)
(+)
(–)
Intelligent Key unit
connector Terminal
M52 1 Ground 5 PIIB6634E
Terminals
Condition of key switch Voltage (V)
(Approx.)
(+)
(–)
Intelligent
Key unit
connector Terminal
M52 32 Ground Ignition
switch is pushed PIIB6635E
SIIA1911J