2001 NISSAN ALMERA TINO ECU

Combination MeterNLEL0443CHECKNLEL0443S01Models with NATS security indicator on dash boardNLEL0443S0105
YEL990B
METERS AND GAUGES
Combination Meter
EL-132

Models with NATS security indicator in combination meterNLEL0443S0106
YEL488C
METERS AND GAUGES
Combination Meter (Cont'd)
EL-133

SchematicNLEL0444MODELS WITH NATS SECURITY INDICATOR ON DASH
BOARD
NLEL0444S02
YEL991B
METERS AND GAUGES
Schematic
EL-134

MODELS WITH NATS SECURITY INDICATOR IN
COMBINATION METER
NLEL0444S03
YEL489C
METERS AND GAUGES
Schematic (Cont'd)
EL-135

System Description=NLEL0497Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times
+through 15A fuse
+to audio unit terminal 9
+to CD auto changer terminal 32.
With the ignition switch in the ACC or ON position, power is supplied
+through 10A fuse [No. 1, located in the fuse block (J/B)]
+to audio unit terminal 3,
+to CD auto changer terminal 36 and
Ground is supplied through the case of the audio unit.
Audio signals are supplied
+through audio unit terminals 7, 10, 11, 12, 13, 14, 15, 16
+to terminals 1 and 2 of front door speaker LH and RH,
+to terminals 1 and 2 of rear door speaker LH and RH and
+to terminals 1 and 2 of pillar tweeter LH and RH (with 6 speakers)
When the navigation system is triggered,
power is supplied
+through navi control unit terminal 46
+to speaker relay terminal 2
Ground is supplied
+through navi control unit terminal 44
+to speaker relay terminal 1
With power and ground supplied, the relay is energized, and then audio signal is interrupted to front door
speaker RH (LHD models) or LH (RHD models), and pillar tweeter RH (LHD models) or LH (RHD models)
For detailed, refer to ªNAVIGATION SYSTEMº.
NATS AUDIO LINKNLEL0497S01DescriptionNLEL0497S0101The link with the NATS IMMU implies that the audio unit can basically only be operated if connected to the
matching NATS IMMU to which the audio unit was initially fitted on the production line.
Since radio operation is impossible after the link with the NATS is disrupted theft of the audio unit is basically
useless since special equipment is required to reset the audio unit.
Initialization process for audio units that are linked to the NATS IMMU
New audio units will be delivered to the factories in the ªNEWº state, i.e. ready to be linked with the vehicle's
NATS. When the audio unit in ªNEWº state is first switched on at the factory, it will start up communication
with the vehicle's immobiliser control unit (IMMU) and send a code (the ªaudio unit Codeº) to the IMMU. The
IMMU will then store this code, which is unique to each audio unit, in its (permanent) memory.
Upon receipt of the code by the IMMU, the NATS will confirm correct receipt of the audio unit code to the audio
unit. Hereafter, the audio unit will operate as normal.
During the initialisation process, ªNEWº is displayed on the audio unit display. Normally though, communica-
tion between audio unit and IMMU takes such a short time (300 ms) that the audio unit seems to switch on
directly without showing ªNEWº on its display.
Normal operation
Each time the audio unit is switched on afterwards, the audio unit code will be verified between the audio unit
and the NATS before the audio unit becomes operational. During the code verification process, ªWAITº is
shown on the audio unit display. Again, the communication takes such a short time (300 ms) that the audio
unit seems to switch on directly without showing ªWAITº on its display.
When the radio is locked
In case of a audio unit being linked with the vehicle's NATS (immobilizer system), disconnection of the link
between the audio unit and the IMMU will cause the audio unit to switch into the lock (ªSECUREº) mode in
which the audio unit is fully inoperative. Hence, repair of the audio unit is basically impossible, unless the audio
unit is reset to the ªNEWº state for which special decoding equipment is required.
Clarion has provided their authorized service representatives with so called ªdecoder boxesº which can bring
the audio unit back to the ªNEWº state, enabling the audio unit to be switched on after which repair can be
AUDIO
System Description
EL-208

carried out. Subsequently, when the repaired audio unit is delivered to the final user again, it will be in the
ªNEWº state as to enable re-linking the audio unit to the vehicle's immobiliser system. As a result of the above,
repair of the audio unit can only be done by an authorized Clarion representative.
Service instruction
Item Radio linked with IMMU and/or SECU
Battery disconnection No additional action required
Radio needs repair Repair needs to be done by authorised representative of radio manufacturer since radio
cannot be operated unless it is reset to NEW state, using special decoding equipment
Replacement of radio by new part Radio is delivered in NEW state. If possible, the radio will automatically link up with the
immobiliser system. If this appears not possible, CATS code needs to be manually input
Transferring radio to another vehicle /
replacement of radio by an ªoldº partRadio needs to be reset to NEW state by authorised representative of radio manufacturer
Replacement of IMMU by new part Radio will request for CATS code input prior to establishing the link with the IMMU
Replacement of IMMU by old part If a radio code has already been stored in memory of the IMMU, the radio cannot be
linked to it. After switching on the radio, it will display ªSECUREº after 1 minute. Operation
can only be established after resetting the ratio by an authorised representative of radio
manufacturer
No communication from IMMU to
radioRadio will display ªSECUREº after 180 attempts to communicate with IMMU. Further use
of radio impossible until communication is established again, or after radio is reset by
authorised representative of (radio) manufacturer
CATS code input procedure
1. Radio displays ªCODE INº after the power is switched ON.
2. Enter CATS code (4±digits) by pressing the preset buttons (using 1 to 4).
Press the preset buttons for the necessary amount of times for the number of each digits.
e.g. CATS code is ª5432º
Press No. 1 preset button for 5 times
Press No. 2 preset button for 4 times
Press No. 3 preset button for 3 times
Press No. 4 preset button for 2 times
3. Press the
button.
4. If the code is OK, the radio will power ON.
If the code is NG, the radio will be locked up as below. After the lock up, the radio will display ªCODE INº
again.
1st to 3rd attempt: The radio will be locked for 10 seconds after each attempt
4th to 20th attempt: The radio will be locked for 60 minutes after each attempt
Over 20th attempt: The radio will be locked completely
SPEED DEPENDENT VOLUME CONTROLNLEL0497S02DescriptionNLEL0497S0201If activated, the radio output volume will be automatically adjusted to compensate for increasing driving noises
at higher driving speeds.
The radio receives a speed signal from the vehicle speed sensor (VSS) and selects the output volume.
PERSONAL AUDIO SETTINGSNLEL0497S03DescriptionNLEL0497S0301The radio is designed to store several settings (volume, bass, treble, preset stations and level of speed
dependent volume control) with every NATS ignition key used. Up to a maximum of 4 NATS keys can be reg-
istered. During the communication as mentioned under ªNATS audio linkº, the radio will recognize the used
ignition key and select the accompanying settings.
AUDIO
System Description (Cont'd)
EL-209

Component Parts and Harness Connector
Location
=NLEL0406For details, refer to ªELECTRICAL UNIT LOCATIONº (EL-442) and ªHARNESS LAYOUTº (EL-452).
System DescriptionNLEL0407NATS (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 only). 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)
Component Parts and Harness Connector Location
EL-334

System Composition=NLEL0408The 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 only)
+NAVI control unit (Navigation system)
+Security indicator
NEL776
NATS (NISSAN ANTI-THEFT SYSTEM)
System Composition
EL-335