1999 NISSAN PRIMERA immobilizer

TER-
MINAL
NO.WIRE
COLORITEM CONDITIOND ATA
(DC Voltage and
Pulse Signal)
403 GY Air conditioner switchEngine is running.
Both air conditioner switch and blower
switch are ªONº (Compressor operates)Approximately 0V
Engine is running.
Air conditioner switch is ªOFFºBATTERY VOLTAGE
(11 - 14V)
405 R/G Stop lamp switchIgnition switch ªONº
Brake pedal released0V
Ignition switch ªONº
Brake pedal depressedBattery voltage
(11 - 14V)
410 ORImmobilizer communica-
tionIgnition switch ªONº
BATTERY VOLTAGE
(4 - 14V)
416 R/B Brake switch 2Ignition switch ªONº
Brake pedal releasedBattery voltage
(11 -14V)
Ignition switch ªONº
Brake pedal depressed0V
417 OR/WVehicle speed sensor or
ABS actuator and elec-
tric unit (control unit)Engine is running.
Lift up the vehicle.
In 2nd gear position
Vehicle speed is 40 km/h (25 mph)0 - Approximately 4.2V
SEF552S
420 BR/W
Data link connector for
CONSULT-IIEngine is running.
Idle speed (CONSULT-II is connected and
turned on)Approximately4-9V
415 G/RApproximately 0V
425 BRAccelerator position sen-
sor groundEngine is running.
Idle speedApproximately 0V
433 LG/WAccelerator position sen-
sor power supplyIgnition switch ªONº
Approximately 5V
434 W/PUAccelerator position sen-
sorIgnition switch ªONº
Accelerator pedal released0.4 - 0.6V
Ignition switch ªONº
Accelerator pedal fully depressedApproximately 4.0V
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
ECM Terminals and Reference Value (Cont'd)
EC-57

TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
11 0
11 2R
RPower supply for ECM[Ignition switch ªONº]BATTERY VOLTAGE
(11 - 14V)
111 G Sensors' power supply[Ignition switch ªONº]Approximately 5V
114 G/W Adjust switch[Engine is running]
IIdle speed0V
115 BR/W Data link connector[Engine is running]
IIdle speed (CONSULT-II or GST is discon-
nected)0 - 10V
11 6Refer to
EL sec-
tionImmobilizer[Engine is running]
IIdle speed (GST is disconnected)BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONQG16I18DE
ECM Terminals and Reference Value (Cont'd)
EC-97

TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
86 OR/WVehicle speed sensor or
ABS actuator and elec-
tric unit (control unit)[Engine is running]
ILift up the vehicle
IIn 2nd gear position
IVehicle speed is 40 km/h (25 MPH)Approximately 2.5V
SEF976W
91 PU/Y CVT check signal[Engine is running]
IIdle speed0 - Approximately 5V
93*1 G/R Data link connector[Engine is running]
lIdle speed (CONSULT-II or GST is discon-
nected)Approximately 0V
101
103
105
107R/B
Y/B
G/B
L/BInjector No. 1
Injector No. 2
Injector No. 3
Injector No. 4[Engine is running]
IWarm-up condition
IIdle speedBATTERY VOLTAGE
(11 - 14V)
SEF011W
[Engine is running]
IWarm-up condition
IEngine speed is 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
SEF012W
106
108B/Y ECM ground[Engine is running]
IIdle speed0V
11 0
11 2R
RPower supply for ECM[Ignition switch ªONº]BATTERY VOLTAGE
(11 - 14V)
111 G Sensors' power supply[Ignition switch ªONº]Approximately 5V
114*1 G/W Adjust switch[Engine is running]
IIdle speed0V
115 BR/W Data link connector[Engine is running]
IIdle speed (CONSULT-II or GST is discon-
nected)0 - 10V
11 6Refer to
EL
sectionImmobilizer[Engine is running]
IIdle speedBATTERY VOLTAGE
(11 - 14V)
*1: If so equipped
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONSR20DE
ECM Terminals and Reference Value (Cont'd)
EC-109

Anti-theft System
NATS Audio Link
Description
The 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 basi-
cally 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“NEW”state, i.e. ready to be linked with the vehi-
cle’s NATS. When the audio unit in“NEW”state is first switched on at the factory, it will start up communi-
cation with the vehicle’s immobiliser control unit (IMMU) and send a code (the“audio unit Code”)tothe
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,“NEW”is displayed on the audio unit display. Normally though, communi-
cation between audio unit and IMMU takes such a short time (300 ms) that the audio unit seems to switch
on directly without showing“NEW”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,“WAIT”
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“WAIT”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 (“SECURE”) 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“NEW”state for which special decoding equipment is required.
The radio manufacturer has provided their authorized service representatives with so called“decoder boxes”
which can bring the audio unit back to the“NEW”state, enabling the audio unit to be switched on after which
repair can be carried out. Subsequently, when the repaired audio unit is delivered to the final user again, it
will be in the“NEW”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 representative of the radio
manufacturer.
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 immobil-
iser system. If this appears not possible, the audio unit code needs to be manually input
Transferring radio to another
vehicle / replacement of radio by
an‘‘old’’partRadio needs to be reset to NEW state by authorised representative of radio manufacturer
Replacement of IMMU by new part Radio will request for the audio unit 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‘‘SECURE’’after 1 minute. Operation can only be
established after resetting the ratio by an authorised representative of radio manufacturer
No communication from IMMU to radio Radio will display‘‘SECURE’’after 180 attempts to communicate with IMMU. Further use of radio
impossible until communication is established again, or after radio is reset by authorised repre-
sentative of (radio) manufacturer
AUDIO
EL-216

Trouble Diagnoses
If no doors can not be unlocked by remote controller operation then the following procedure is required.
A) Unlock the vehicle by a mechanical key in the drivers door key cylinder.
Note: this may cause the alarm to sound.
B) Put the key in ignition, turn to ON position for at least five seconds. Assuming the ignition key contains
a valid transponder then a signal will be generated by the immobilizer which will disarm the alarm and
allow key learn mode to be entered.
C) Turn ignition OFF and wait for ten seconds.
SYMPTOM CHART
Symptom Possible cause Diagnoses/service order
No doors can be locked or
unlocked by remote control
operation.1. Remote controller battery
2. Power door lock system
3. Key switch (insert)
4. Door switch
5. Power supply circuit for time
control unit
6. Ground circuit for time control
unit
7. Remote controller1. Check remote controller battery. Refer to EL-304.
2. Check that power door lock operates properly. If
NG, check power door lock.
3. Check key switch (insert) signal at terminal

22
of time control unit.
4. Check door switch signal at terminals

6and

7of time control unit.
5. Make sure battery voltage is present at terminal

9of time control unit.
6. Check continuity between terminal

16of time
control unit and ground.
7. Replace remote controller. Refer to EL-305.
The new ID of remote controller
cannot be entered.1. Remote controller battery
2. Key switch (insert)
3. Door switch
4. Driver’s door unlock sensor
5. Ignition ON power supply
circuit for time control unit
6. Remote controller1. Check remote controller battery. Refer to EL-304.
2. Check key switch (insert) signal at terminal

29
of time control unit.
3. Check door switch signal at terminals

6and

7of time control unit.
4. Check driver’s door unlock sensor signal at termi-
nal

35of time control unit.
5. Make sure battery voltage is present at terminal

1of time control unit while ignition switch is in
ON position.
6. Replace remote controller. Refer to EL-305.
Refer to“TIME CONTROL UNIT INSPECTION TABLE”on next page to check the control unit signals.
NOTE:

The unlock operation of multi-remote control system does not activate with key inserted in the ignition
key cylinder.

The lock operation of multi-remote controller does not activate with the key inserted ignition key cylin-
der or if one of the door is opened.
MULTI-REMOTE CONTROL SYSTEM
EL-303

ID Code Entry Procedure
Activation of the registration mode:
The vehicle must have been unlocked by either the multi-remote controller or a transponder OK signal
(TPOK) from the vehicle’s immobilizer.
Preparation: - Make sure all doors unlock.
- Make sure all multi-remote controllers to be registered are available.
- Make sure the batteries of all multi-remote controllers are in a good condition.
- Make sure all transmitting sources are out of the neighbourhood of the vehicle .
- Make sure the battery of the vehicle is in a good condition.
Switch ignition-switch exactly six times from the“LOCK”to the“ON”position within 10 seconds and return
the ignition switch to the“LOCK”position (leaving the key in the ignition switch).
After 2 seconds the registration mode is activated. The turn signal lamps will flash twice.
OKNG
Proceed with the registration mode.
NOTE
The registration mode is operated when:

The ignition-switch is turned to the“ON”position.

4 multi remote controllers have been learned.

No multi-remote controller or ignition switch input is received within
120 seconds.
Registration mode

Press and hold the“UNLOCK”button of the multi-remote controller.
NEL569
Press the“LOCK”button 3 times.
Release the“UNLOCK”button.If the multi-remote controller
code is registered correctly,
the turn signal lamp will
flash once.NG
Do you want to register another multi-remote controller? (max. 4)
NoYe s
OK
After registration of the requested No. of multi-remote controller(s),
confirm the ID-code(s) by switching the ignition switch to the“ON”
position.
If the multi-remote controller
registration is performed
correctly, the turn signal
lamp will flash twice.
Take the ignition key out of the ignition switch and confirm the func-
tioning of all multi-remote controllers by locking and unlocking the
vehicle with each of the multi-remote controllers.OK NG
End









MULTI-REMOTE CONTROL SYSTEM
EL-305