Page 1977 of 2898
USER ACTION TCU Reaction COMPONENT TESTED
Lighting switch turned 1st position or 2nd
position from offHazard flash once Tail lamp signal
Key put in ignition from out Hazard flash once Key in detect signal
Door lock/unlock switch is pressed Hazard flash once Central door lock/unlock signal
*) Hazard may flash a second time because of Driver's door status signal change. The min. delay time between flash actions is 100
ms.
In case the system does not operate as described above, check the concerned circuit for open or short. After
completion, the Diagnostic Mode can be switched off by pressing the rear defogger switch or by turning the
ignition to ªONº. The hazard lamp will flash at 3 Hz for 3 seconds to confirm that Diagnostic Mode has been
switched off.
TIME CONTROL UNIT
Trouble Diagnoses/Hatchback (Cont'd)
EL-419
Page 1978 of 2898
Schematic/HatchbackNJEL0506
MEL230M
TIME CONTROL UNIT
Schematic/Hatchback
EL-420
Page 1979 of 2898
MEL231M
TIME CONTROL UNIT
Schematic/Hatchback (Cont'd)
EL-421
Page 1980 of 2898
Component Parts and Harness Connetor
Location
NJEL0406For details, refer to ªELECTRICAL UNIT LOCATIONº (EL-517) and
ªHARNESS LAYOUTº (EL-522).
NATS (NISSAN ANTI-THEFT SYSTEM)
Component Parts and Harness Connetor Location
EL-422
Page 1981 of 2898

System Description=NJEL0407NATS (Nissan Anti-Theft System) has the following immobilizer functions:
+Since only NATS ignition keys, whose ID nos. have been registered into the ECM and IMMU of NATS,
allow the engine to run, operation of a stolen vehicle without a NATS registered key is prevented by NATS.
That is to say, NATS will immobilize the engine if someone tries to start it without the registered key of
NATS.
+This version of NATS has dongle unit to improve its anti-theft performance (RHD models for Europe).
Dongle unit has its own ID which is registered into NATS IMMU. So if dongle unit is replaced, initialization
must be carried out.
+When malfunction of dongle unit is detected:
The security indicator lamp illuminates for about 15 minutes after ignition switch is turned to ON.
þ When dongle unit has a malfunction and the indicator lamp is illuminated, engine can not be started.
However engine can be started only one time when security indicator lamp turns off in about 15 minutes
after ignition switch is turned to ON.
+All of the originally supplied ignition key IDs have been NATS registered.
If requested by the vehicle owner, a maximum of five key IDs can be registered into the NATS compo-
nents.
+The security indicator blinks when the ignition switch is in ªOFFº or ªACCº position. Therefore, NATS warns
outsiders that the vehicle is equipped with the anti-theft system.
+When NATS detects trouble, the security indicator lamp lights up as follows.
Condition IGN ON andWith dongle Without dongle
MIL Security indicator MIL Security indicator
NATS malfunction
(except dongle unit) is
detectedÐ1. 6 times blinking
2. Staying ON after igni-
tion switch is turned
ONÐ Staying ON
Only malfunction of
dongle unit is detected.ÐStaying ON for about 15
minutes after ignition
switch is turned ONÐÐ
Malfunction of NATS
and engine related parts
are detected.Staying ON1. 6 times blinking
2. Staying ON after igni-
tion switch is turned
ONStaying ON Staying ON
Only engine related part
malfunction is detected.Staying ON Ð Staying ON Ð
Just after initialization of
NATSÐ 6 times blinking Ð Ð
+NATS trouble diagnoses, system initialization and additional registration of other NATS ignition key IDs
must be carried out using CONSULT-II hardware and CONSULT-II NATS software.
Regarding the procedures of NATS initialization and NATS ignition key ID registration, refer to CONSULT-II
operation manual, NATS.
+When servicing a malfunction of the NATS (indicated by lighting up of Security Indicator Lamp) or
registering another NATS ignition key ID no., it may be necessary to re-register original key iden-
tification. Therefore, be sure to receive ALL KEYS from vehicle owner.
NATS (NISSAN ANTI-THEFT SYSTEM)
System Description
EL-423
Page 1982 of 2898
System Composition=NJEL0408The immobilizer function of the NATS consists of the following:
+NATS ignition key
+NATS immobilizer control unit (IMMU) located in the ignition key cylinder
+Engine control module (ECM)
+Dongle unit (RHD models)
+Security indicator
+Navigation control unit (Models with Navigation system)
NEL776
NATS (NISSAN ANTI-THEFT SYSTEM)
System Composition
EL-424
Page 1983 of 2898
Wiring Diagram Ð NATS Ð/SedanNJEL0409GASOLINE ENGINE MODELSNJEL0409S01
HEL422B
NATS (NISSAN ANTI-THEFT SYSTEM)
Wiring Diagram Ð NATS Ð/Sedan
EL-425
Page 1984 of 2898
DIESEL ENGINE MODELSNJEL0409S02
HEL423B
NATS (NISSAN ANTI-THEFT SYSTEM)
Wiring Diagram Ð NATS Ð/Sedan (Cont'd)
EL-426