2007 NISSAN LATIO key fob

BL-56
REMOTE KEYLESS ENTRY SYSTEM
Revision: June 20062007 Versa
OPERATED PROCEDURE
Power Door Lock Operation
BCM receives a LOCK signal from keyfob. BCM locks all doors with input of LOCK signal from keyfob.
BCM receives a UNLOCK signal from keyfob. BCM unlocks all doors with input of UNLOCK signal from key-
fob.
Hazard and Horn Reminder
When the doors are locked or unlocked by keyfob, power is supplied to sound horns and flash hazard warning
lamps as follows

LOCK operation: 3 or 4 mode (lamps flash twice)

UNLOCK operation: 2 or 4 mode (lamps flash once)

Horns sound once with LOCK function when this feature is set ON.
The hazard reminder has modes 1, 2, 3 or 4. The horn reminder can be turned ON/OFF with any LOCK mode.
Operating function of hazard reminder
Hazard and horn reminders do not operate if any door switch is ON (any door is OPEN).
How to change hazard and horn reminder modes
With CONSULT-II
Hazard reminder can be changed using “HAZARD LAMP SET” mode in “WORK SUPPORT”.
Horn reminder can be changed using “HORN CHIRP SET” mode in “WORK SUPPORT”.
Refer to BL-61, "
Work Support" .
Without CONSULT-II
Refer to Owner's Manual for instructions.
Auto Door Lock Operation
Auto lock function signal is sent for operation when any of the following signals are not sent within 1 minute
after the unlock signal is sent from the keyfob:

when door switch is turned ON for open.

when the key switch is turned ON.

when the lock signal is sent from the keyfob.
Auto door lock mode can be changed using “AUTO LOCK SET” mode in “WORK SUPPORT”.
Refer to BL-61, "
Work Support" .
Panic Alarm Operation
When key switch is OFF (when ignition key is not inserted in key cylinder), BCM turns on and off horn intermit-
tently with input of PANIC ALARM signal from keyfob.
BCM outputs to IPDM E/R for panic alarm signal (horn signal) as DATA LINE (CAN H line and CAN L line).
The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob.
Panic alarm operation mode can be changed using “PANIC ALARM SET” mode in “WORK SUPPORT”.
Refer to BL-61, "
Work Support" .
Interior Lamp Operation
When the following conditions come:

condition of interior lamp switch is in the DOOR position;

door switch OFF (when all the doors are closed);
Remote keyless entry system turns on interior lamp (for 30 seconds) with input of UNLOCK signal from key-
fob. For detailed description, refer to LT- 9 1 , "
INTERIOR ROOM LAMP" .
CAN Communication System DescriptionEIS0091B
Refer to LAN-4, "SYSTEM DESCRIPTION" .
Mode 1 Mode 2 Mode 3 Mode 4
Keyfob operation Lock Unlock Lock Unlock Lock Unlock Lock Unlock
Hazard warning lamp
flash— — — Twice Once — Once Twice
Horns sound (ON/OFF) ON: once — ON: once — ON: once — ON: once —

REMOTE KEYLESS ENTRY SYSTEM
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Revision: June 20062007 Versa
Terminals and Reference Values for BCMEIS0091E
Refer to BCS-12, "Terminals and Reference Values for BCM" .
How to Perform Trouble DiagnosesEIS00A3F
1. Confirm the symptom or customer complaint.
2. Understand operation, description and function description. Refer to BL-55, "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 1 2 , "
Preliminary Check" .
4. Check symptom and repair or replace the component.
5. Does the remote keyless entry system operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckEIS00A3G
CHECK BCM CONFIGURATION
1. CHECK BCM CONFIGURATION
Confirm BCM configuration for "KEYLESS ENTRY" is set to "WITH". Refer to BCS-19, "
READ CONFIGURA-
TION PROCEDURE" .
OK or NG
OK >> Refer to BL-64, "Work Flow" .
NG >> Change BCM configuration for "KEYLESS ENTRY" to "WITH". Refer to BCS-21, "
WRITE CON-
FIGURATION PROCEDURE" .
CONSULT-II Function (BCM)EIS0091F
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
CONSULT-II APPLICATION ITEMS
Work Support
BCM
diagnostic test itemDiagnostic mode Description
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the
BCM for setting the status suitable for required operation, input/output sig-
nals are received from the BCM and received date is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TESTOperation of electrical loads can be checked by sending drive signal to
them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTRThe result of transmit/receive diagnosis of CAN communication can be
read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
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 checked whether keyfob ID code is registered or not in this mode.
PANIC ALRM SETPanic alarm operation mode can be changed in this mode. The operation mode will be
changed when “CURRENT SETTING” on CONSULT-II screen is touched.
HAZARD LAMP SETHazard reminder mode can be changed in this mode. The hazard reminder mode will be
changed when “CURRENT SETTING” on CONSULT-II screen is touched.

BL-62
REMOTE KEYLESS ENTRY SYSTEM
Revision: June 20062007 Versa
PANIC ALARM SET
HAZARD LAMP BACK SET
AUTO LOCK SET
TRUNK OPEN
Data Monitor
Active Test
AUTO LOCK SETAuto locking function mode can be changed in this mode. The function mode will be
changed when “CURRENT SETTING” on CONSULT-II screen is touched.
TRUNK OPENKeyless trunk open operation mode can be changed in this mode. The operation mode will
be changed when “CURRENT SETTING” on CONSULT-II screen is touched. Test Item Description
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] condition of lock signal from keyfob.
KEYLWSS UNLOCK Indicates [ON/OFF] condition of unlock signal from keyfob.
KYLS TRNK/HAT This is displayed even when it is not equipped.
KEYLESS PSD This is displayed even when it is not equipped.
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 This is displayed even when it is not equipped.
TRNK/HAT MNTR Indicates [ON/OFF] condition of trunk room lamp switch.
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.
Test Item Description
INT LAMPThis test is able to check interior room lamp operation.
The interior room lamp turns on when “ON” on CONSULT-II screen is touched.
FLASHERThis test is able to check right hazard reminder operation.
The right hazard lamp turns on when “ON” on CONSULT-II screen is touched.
DOOR LOCKThis test is able to check door lock actuator operation.

The all door lock actuator are locked when “ALL LOCK” on CONSULT-II screen is touched.

The all door lock actuator are unlocked when “ALL UNLOCK” on CONSULT-II screen is touched.

BL-64
REMOTE KEYLESS ENTRY SYSTEM
Revision: June 20062007 Versa
Work FlowEIS0091G
1. Check the symptom and customer's requests.
2. Understand outline of system. Refer to BL-55, "
System Description" .
3. Confirm that power door lock system operates normally.
Refer to BL-23, "
POWER DOOR LOCK SYSTEM" .
4. Repair or replace any malfunctioning parts.
Refer to BL-64, "
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 ChartEIS0091H
NOTE:

Always check the “Work Flow” before troubleshooting. Refer to BL-64, "Work Flow" .

Always check keyfob battery before replacing keyfob.
Symptom Diagnoses/service procedureReference
page
All function of remote keyless entry system do not
operate.1. Check key switch.BL-70
2. Check keyfob battery and function.
NOTE:
If the result of keyfob function check with CONSULT-II is OK, key-
fob is not malfunctioning.BL-66
3. Check remote keyless entry receiver.BL-73
4. Refer to ID Code Entry Procedure.BL-76
5. Replace BCM.BCS-25
The new ID of keyfob cannot be entered.1. Check keyfob battery and function.
NOTE:
If the result of keyfob function check with CONSULT-II is OK, key-
fob is not malfunctioning.BL-662. Check key switch.BL-70
3. Check door switch.BL-68
4. Check ACC switch.BL-67
5. Replace keyfob. Refer to ID Code Entry Procedure.BL-76
6. Replace BCM.BCS-25
Door 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-II is OK, key-
fob is not malfunctioning.BL-75
2. Replace keyfob. Refer to ID Code Entry Procedure.BL-76
3. Check door switch.BL-68
4. Replace BCM.BCS-25
Door unlock does not function with keyfob
(Power door lock system is “ON”)1. Check keyfob function. (Unlock)BL-75
2. Replace keyfob. Refer to ID Code Entry Procedure.
NOTE:
If the result of keyfob function check with CONSULT-II is OK, key-
fob is not malfunctioning.BL-76
3. Replace BCM.BCS-25
Hazard 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-61
2. Check hazard function.BL-71
3. Replace BCM.BCS-25

REMOTE KEYLESS ENTRY SYSTEM
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Revision: June 20062007 Versa
Panic alarm does not activate when panic alarm
button is continuously pressed.1. Check panic alarm mode.*
*: Panic alarm mode can be changed.
First check the panic alarm setting.BL-61
2. Check keyfob battery and function.
NOTE:
If the result of keyfob function check with CONSULT-II is OK, key-
fob is not malfunctioning.BL-66
3. Check horn function.BL-71
4. Check key switch.BL-70
5. Replace keyfob. Refer to ID Code Entry Procedure.BL-76
6. Replace BCM.BCS-25
Auto 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-61
2. Replace BCM.BCS-25
Interior lamp operation does not activate properly.1. Check interior lamp operation.BL-722. Replace BCM.BCS-25
Symptom Diagnoses/service procedureReference
page

BL-66
REMOTE KEYLESS ENTRY SYSTEM
Revision: June 20062007 Versa
Keyfob Battery and Function CheckEIS0091I
1. CHECK KEYFOB BATTERY
1. Remove keyfob battery. Refer to BL-78, "
Keyfob Battery Replacement" .
2. Measure voltage between battery positive and negative termi-
nals, (+) and (−).
NOTE:
Keyfob does not function if battery is not set correctly.
OK or NG
OK >> GO TO 2.
NG >> Replace battery.
2. CHECK KEYFOB FUNCTION
With CONSULT-II
Check keyfob function in “DATA MONITOR” mode with CONSULT-II. When pushing each button of keyfob, the
corresponding monitor item should be turned as follows.
Without CONSULT-II
Check keyfob function using Remote Keyless Entry Tester J-43241.
OK or NG
OK >> Keyfob is OK.
NG >> Replace keyfob.Voltage : 2.5 – 3.0V
SEL237W
Condition Monitor item
Pushing LOCK KEYLESS LOCK : ON
Pushing UNLOCK KEYLESS UNLOCK : ON
Pushing PANIC KEYLESS PANIC : ON
PIIB0595E
LEL946A

REMOTE KEYLESS ENTRY SYSTEM
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Remote Keyless Entry Receiver CheckEIS0091P
1. CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check remote keyless entry receiver connector and ground signal with oscilloscope.
OK or NG
OK >> Remote keyless entry receiver circuit is OK.
NG >> GO TO 2.
2. CHECK REMOTE KEYLESS ENTRY RECEIVER INPUT VOLTAGE
1. Disconnect remote keyless entry receiver connector.
2. Check voltage between remote keyless entry receiver connector M23 terminal 4 and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
Te r m i n a l s
Keyfob
conditionSignal
(Reference value) (+)
(–) Remote
keyless
entry
receiver
connectorTe r m i n a l
M23 2 GroundNo function
Any button
is pressed
PIIB6457E
OCC3879D
OCC3880D
Te r m i n a l s
Voltage (V)
(Approx.) (+)
(–) Remote keyless
entry receiver
connectorTe r m i n a l
M23 4 Ground 4.5
PIIB6458E

REMOTE KEYLESS ENTRY SYSTEM
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Revision: June 20062007 Versa
6. CHECK REMOTE KEYLESS ENTRY RECEIVER SIGNAL CIRCUIT
1. Check continuity between BCM connector (A) M18 terminal 20 and remote keyless entry receiver connec-
tor (B) M23 terminal 2.
2. Check continuity between BCM connector (A) M18 terminal 20
and ground.
OK or NG
OK >> Replace remote keyless entry receiver. Refer to BL-79, "Removal and Installation of Remote Key-
less Entry Receiver" .
NG >> Repair or replace harness.
Keyfob Function (Lock) CheckEIS0091Q
1. CHECK KEYFOB FUNCTION
With CONSULT-II
Check keyfob function in “DATA MONITOR” mode with CONSULT-II. When pushing lock button of keyfob, the
corresponding monitor item should be turned as follows.
OK or NG
OK >> Keyfob is OK.
NG >> Replace keyfob.
Keyfob Function (Unlock) CheckEIS0091R
1. CHECK KEYFOB FUNCTION
With CONSULT-II
Check keyfob function in “DATA MONITOR” mode with CONSULT-II. When pushing unlock button of keyfob,
the corresponding monitor item should be turned as follows.
OK or NG
OK >> Keyfob is OK.
NG >> Replace keyfob.
AB
Continuity
BCM connector TerminalRemote keyless
entry receiver
connectorTe r m i n a l
M18 20 M23 2 Yes
A
GroundContinuity
BCM connector Terminal
M18 20 No
PIIB6462E
Test item Condition
KEYLESS LOCKPushing LOCK button: ON
Other than above: OFF
PIIB6463E
Test item Condition
KEYLESS UNLOCKPushing UNLOCK button: ON
Other than above: OFF
PIIB6464E