2009 NISSAN LATIO key fob

BL-66< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
18 V Remote keyless entry
receiver (ground) Output OFF — 0V
19 BR Remote keyless entry
receiver (power sup-
ply) Output OFF Ignition switch OFF
20 G Remote keyless entry
receiver signal (signal) Input OFFStand-by (keyfob buttons re-
leased)
When remote keyless entry
receiver receives signal from
keyfob (keyfob buttons
pressed)
21 P NATS antenna amp. Input/
Output OFF
→
ON Ignition switch (OFF
→ ON) Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then return to battery voltage.
23 R Security indicator
lamp Output OFFGoes OFF
→ illuminates (Ev-
ery 2.4 seconds) Battery voltage
→ 0V
25 LG NATS antenna amp. Input/
Output OFF
→
ON Ignition switch (OFF
→ ON) Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
26 GR Thermo control amp. Input ON A/C switch ON
27 O Compressor ON sig-
nal Input ONA/C switch OFF 5V
A/C switch ON 0V
28 P Front blower monitor Input ON Front blower motor OFF Battery voltage
Front blower motor ON 0V
29 L Hazard switch Input OFF ON 0V
OFF 5V
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition LIIA1893E
LIIA1894E
LIIA1895E
ZJIA0719J

Test Item Description
REMO CONT ID REGIST Keyfob ID code can be registered.
REMO CONT ID ERASER Keyfob ID code can be erased.
REMO CONT ID CONFIR It can be c hecked whether keyfob ID code is registered or not in this mode.
PANIC ALRM SET Panic alarm operation mode can be changed in this mode. The operation mode will be
changed when “CURRENT SETTING” on CONSUL T-III screen is touched.
HAZARD LAMP SET Hazard reminder mode can be changed in this mode. The hazard reminder mode will be
changed when “CURRENT SETTING” on CONSUL T-III screen is touched.
AUTO LOCK SET Auto locking function mode can be changed in this mode. The function mode will be changed
when “CURRENT SETTING” on CONS ULT-III screen is touched.
TRUNK OPEN Keyless trunk open operation mode can be changed in this mode. The operation mode will
be changed when “CURRENT SETTING” on CONSULT-III screen is touched. MODE 1 MODE 2 MODE 3
Keyfob operation 0.5 seconds Nothing 1.5 seconds
MODE 1 MODE 2 MODE 3 MODE 4
Hazard lamp operation mode Nothing Unlock only Lock only Lock and Unlock
MODE 1 MODE 2 MODE 3
Auto locking function 30 seconds Nothing 1 minutes
MODE 1 MODE 2 MODE 3
Keyfob operation 0.5 seconds Nothing 1.5 seconds Monitored Item Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch in ON position.
KEY ON SW Indicates [ON/OFF] condition of key switch.
ACC ON SW Indicates [ON/OFF] condition of ignition switch in ACC position.
KEYLESS LOCK Indicates [ON/OFF] conditio n of lock signal from keyfob.
KEYLWSS UNLOCK Indicates [ON/ OFF] condition of unlock signal from keyfob.

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Active Test
Work Flow INFOID:0000000004305015
1. Check the symptom and customer's requests.
2. Understand outline of system. Refer to BL-58, " System Description " .
3. Confirm that power door lock system operates normally. Refer to BL-22 .
4. Repair or replace any malfunctioning parts. Refer to BL-71, " Trouble Diagnosis Symptom Chart " .
5. Does remote keyless entry system operate normally? If Yes, GO TO 6. If No, GO TO 4.
6. INSPECTION END
Trouble Diagnosis Symptom Chart INFOID:0000000004305016
NOTE:
• Always check the “Work Flow” before troubleshooting. Refer to BL-71, " Work Flow " .
• Always check keyfob battery before replacing keyfob. DOOR SW-DR Indicates [ON/OFF] condition of front door switch driver side.
DOOR SW-AS Indicates [ON/OFF] condition of front door switch passenger side.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
BACK DOOR SW Indicates [ON/OFF] condition of back door switch (hatchback).
TRNK/HAT MNTR Indicates [ON/OFF] condition of trunk room lamp switch (sedan).
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from door lock and unlock switch.
KEYLESS PANIC Indicates [ON/OFF] condition of panic alarm signal from keyfob.
Monitored Item Description Test Item Description
INT LAMP This test is able to check interior room lamp operation.
The interior room lamp turns on when “ON” on CONSULT-III screen is touched.
FLASHER This test is able to check right hazard reminder operation.
The right hazard lamp turns on when “ON” on CONSULT-III screen is touched.
DOOR LOCK This test is able to check door lock actuator operation.
• The all door lock actuator are locked when “ALL LOCK” on CONSULT-III screen is touched.
• The all door lock actuator are unlocked when “ALL UNLOCK” on CONSULT-III screen is touched. Symptom Diagnoses/service procedure
Reference
page
All function of remote keyless entry system do not
operate. 1. Check key switch.
BL-782. Check keyfob battery and function.
NOTE:
If the result of keyfob function check with CONSULT-III is OK, key-
fob is not malfunctioning. BL-723. Check remote keyless entry receiver.
BL-804. Refer to ID Code Entry Procedure.
BL-825. Replace BCM.
BCS-18

2. Check key switch.
BL-783. Check door switch (hatchback).
BL-744. Check door switch (sedan).
BL-765. Check ACC switch.
BL-746. Replace keyfob. Refer to ID Code Entry Procedure.
BL-827. Replace BCM.
BCS-18Door lock does not function with keyfob.
(Power door lock system is “OK”.) 1. Check keyfob function. (Lock)
NOTE:
If the result of keyfob function check with CONSULT-III is OK, key-
fob is not malfunctioning. BL-822. Replace keyfob. Refer to ID Code Entry Procedure.
BL-823. Check door switch (hatchback).
BL-744. Check door switch (sedan).
BL-765. Replace BCM.
BCS-18Door unlock does not function with keyfob
(Power door lock system is “OK”) 1. Check keyfob function. (Unlock)
BL-822. Replace keyfob. Refer to ID Code Entry Procedure.
NOTE:
If the result of keyfob function check with CONSULT-III is OK, key-
fob is not malfunctioning. BL-823. Replace BCM.
BCS-18Hazard reminder does not activate properly when
pressing lock or unlock button of keyfob. 1. Check hazard reminder mode.*
*: Hazard reminder mode can be changed.
First check the hazard reminder setting. BL-692. Check hazard function.
BL-783. Replace BCM.
BCS-18Panic alarm does not activate when panic alarm but-
ton is continuously pressed. 1. Check panic alarm mode.*
*: Panic alarm mode can be changed.
First check the panic alarm setting. BL-692. Check keyfob battery and function.
NOTE:
If the result of keyfob function check with CONSULT-III is OK, key-
fob is not malfunctioning. BL-723. Check horn function.
BL-794. Check key switch.
BL-785. Replace keyfob. Refer to ID Code Entry Procedure.
BL-826. Replace BCM.
BCS-18Auto door lock operation does not activate properly.
(All other remote keyless entry system functions are
OK.) 1. Check auto door lock operation mode.*
*: Auto door lock operation mode can be changed.
First check the auto door lock operation setting. BL-692. Replace BCM.
BCS-18Interior lamp operation does not activate properly.
1. Check interior lamp operation.
BL-792. Replace BCM.
BCS-18Symptom Diagnoses/service procedure
Reference
page

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With CONSULT-III
Check keyfob function in “DATA MONITOR” mode wit h CONSULT-III. When pushing each button of keyfob,
the corresponding monitor item should be turned as follows.
Without CONSULT-III
Check keyfob function using Remote Keyless Entry Tester J-43241.
OK or NG OK >> Keyfob is OK.
NG >> GO TO 2 YES >> GO TO 3
NO >> Repair or replace malfunctioning parts. YES >> Key fob battery is OK. Check remote keyless entry
receiver. Refer to BL-80, " Remote Keyless Entry
Receiver Check " .
NO >> GO TO 4

YES >> Key fob is OK.
NO >> Check remote keyless entry receiver. Refer to BL-80," Remote Keyless Entry Receiver Check " .
ACC Switch Check INFOID:0000000004305018OK >> ACC switch is OK.
NG >> Check the following. • 10A fuse [No. 20, located in fuse block (J/B)]
• Harness for open or short between BCM and fuse.
Door Switch Check (Hatchback) INFOID:0000000004305019CONSULT-III Function (BCM) " .
• When doors are open: Terminals
Ignition switch
condition Voltage (V)
(Approx.)
(+)
(–)
BCM connector Terminal
M18 11 Ground ACC or ON Battery voltage
OFF 0

OK >> Replace remote keyless entry receiver. Refer to
BL-85, " Removal and Installation of Remote Key-
less Entry Receiver " .
NG >> Repair or replace harness.
Keyfob Function (Lock) Check INFOID:0000000004305026OK >> Keyfob is OK.
NG >> Replace keyfob.
Keyfob Function (Unlock) Check INFOID:0000000004305027OK >> Keyfob is OK.
NG >> Replace keyfob.
ID Code Entry Procedure INFOID:0000000004305028
KEYFOB ID SET UP WITH CONSULT-III
NOTE:
• If a keyfob is lost, the ID code of the lost keyfob must be erased to prevent unauthorized use. A spe-
cific ID code can be erased with CONSULT-III. Ho wever, when the ID code of a lost keyfob is not
known, all controller ID codes should be erased. After all ID codes are erased, the ID codes of all
remaining and/or new keyfobs must be re-registered. A B
Continuity
BCM connector Terminal Remote keyless
entry receiver
connector Terminal
M18 20 M23 2 Yes
A GroundContinuity
BCM connector Terminal
M18 20 No Test item Condition
KEYLESS UNLOCK Pushing UNLOCK button: ON
Other than above: OFF

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•
When registering an addi tional keyfob, the existing ID codes in memory may or may not be erased. If
five ID codes are stored in memory , when an additional code is registered, only the oldest code is
erased. If less than five ID codes are stored in memory, when an additional ID code is registered, the
new ID code is added and no ID codes are erased.
• Entry of maximum five ID codes is allowed. When mo re than five ID codes are entered, the oldest ID
code will be erased.
• Even if same ID code that is already in the memo ry is input, the same ID code can be entered. The
code is counted as an additional code.
1. Touch “MULTI REMOTE ENT”.
2. Touch “WORK SUPPORT”.
3. The items are shown on the figure can be set up. • “REMO CONT ID CONFIR”
Use this mode to confirm if a ke yfob ID code is registered or not.
• “REMO CONT ID REGIST” Use this mode to register a keyfob ID code.
NOTE:
Register the ID code when keyfob or BCM is replaced, or when additional keyfob is required.
• “REMO CONT ID ERASUR”
Use this mode to erase a keyfob ID code.