2009 NISSAN LATIO Service Repair Manual

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Page 705 of 4331

NISSAN LATIO 2009 Service Repair Manual BL-244< SERVICE INFORMATION >
VEHICLE SECURITY (T
HEFT WARNING) SYSTEM
OK >> GO TO 3
NG >> Repair or replace harness. 3.
CHECK DOOR SWITCHES
Check continuity between door switch terminal and switch ca

Page 706 of 4331

NISSAN LATIO 2009 Service Repair Manual BL
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OK or NG OK >> GO TO 3
NG >> Replace trunk lamp switch and trunk release solenoid. OK >> GO TO 4
NG >> Repair or replace harness between BCM and trunk room lamp switch. OK >> Check connection

Page 707 of 4331

NISSAN LATIO 2009 Service Repair Manual OK >> Trunk key cylinder switch signal is OK.
NG >> GO TO 2 OK >> GO TO 3
NG >> Repair or replace harness. OK >> GO TO 4
NG >> Replace trunk key cylinder switch.

Page 708 of 4331

NISSAN LATIO 2009 Service Repair Manual BL
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2. Check continuity between BCM connector (A) M19 terminal 41
and trunk key cylinder switch connector (B) B142 terminal 1 and
body ground.
OK or NG OK >> Trunk key cylinder switch ci

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Page 710 of 4331

NISSAN LATIO 2009 Service Repair Manual BL
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- BCM
- Mechanical key
• NATS trouble diagnoses, system initialization and additional registration of other NATS mechanical key IDs
must be carried out using CONSULT-III hardware and CO NS

BL
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- BCM
- Mechanical key
• NATS trouble diagnoses, system initialization and additional registration of other NATS mechanical key IDs
must be carried out using CONSULT-III hardware and CO NSULT-III NATS software. When NATS initializa-
tion has been completed, the ID of the inserted mechanical key can be displayed.
Regarding the procedures of NATS initialization and mec hanical key ID registration, refer to CONSULT-III
operation manual NATS.
SECURITY INDICATOR • Forewarns that the vehicle is equipped with NATS.
• Security indicator will not blink while the ignition knob is in ON or START state. NOTE:
Because security indicator is highly efficient, the battery is barely affected.
Condition of Secu rity Indicator
• When operating the ignition switch with Intelligent Key, se curity indicator lamp will turn off at once if ignition
switch is pressed and blinks when ignition switch is released.
• When operating the ignition switch with mechanical key security indicator will turn off at once if mechanical key is inserted into key cylinder and blinks when mechanical key is removed.
(Once the mechanical key is inserted into key cylinder, BCM will only perform the key ID verification with
mechanical key)
System Composition INFOID:0000000004305137
The function of the NATS consists of the following:
• Mechanical key
• NATS antenna amp. located in the ignition key cylinder
• BCM
• ECM (Engine control module)
• Security indicator
• Intelligent Key unit (if equipped)
NOTE:
The communication between ECM, BCM and/or Intelligent K ey unit uses the CAN communication sys-
tem.
ECM Re-communicating Function INFOID:0000000004305138
Performing the following procedure can automatically perform re-communication of ECM and BCM or Intelli-
gent Key unit, but only when the ECM has been replaced with a new one which has never been energized on-
board.
(In this step, initialization procedur e by CONSULT-III is not necessary)
NOTE:
• When registering new Key IDs or replacing the ECM other than brand new, refer to CONSULT-III
Operation Manual NATS.

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Page 712 of 4331

NISSAN LATIO 2009 Service Repair Manual BL
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Wiring Diagram - NATS -
INFOID:0000000004305139 B

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