NISSAN ALMERA 2001 Service Manual

DIAGNOSTIC PROCEDURE 5=NJEL0411S09Self-diagnostic results:
ªID DISCORD, IMM-ECMº displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS ªID DISCORD, IMM-ECMº displayed on CONSULT-II screen.
SEL369X
NOTE:
ªID DISCORD IMMU-ECMº:
Registered ID of IMMU is in discord with that of ECM.
Is CONSULT-II screen displayed as above?
Ye s©GO TO 2.
No©GO TO SYMPTOM MATRIX CHART 1.
2 PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II. Re-register all NATS ignition key IDs.
For initialization, refer to ªCONSULT-II operation manual NATSº.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows above message on the screen.
Can the system be initialized?
Ye s©Start engine. (END)
(System initialization had not been completed.Ref. part No. B)
No©ECM is malfunctioning.
Replace ECM.Ref. part No. B
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II operation manual NATSº.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-443

DIAGNOSTIC PROCEDURE 6=NJEL0411S10ªSECURITY INDICATOR LAMP DOES NOT LIGHT UPº
1 CHECK FUSE
Check 10A fuse [No. 12, located in the fuse block (J/B)].
Is 10A fuse OK?
Ye s©GO TO 2.
No©Replace fuse.
2 CHECK SECURITY INDICATOR LAMP
1. Install 10A fuse.
2. Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II Operation Manual NATSº.
3. Turn ignition switch OFF.
4. Start engine and turn ignition switch OFF.
5. Check the security indicator lamp lighting.
Security indicator lamp should be light up.
OK or NG
OK©INSPECTION END
NG©GO TO 3.
3 CHECK SECURITY INDICATOR LAMP POWER SUPPLY CIRCUIT
1. Disconnect security indicator lamp connector (models before VIN No. Ð N16U0135126) or Combination meter connec-
tor (models after VIN No. Ð N16U0135126).
2. Check voltage between security indicator lamp connector terminal 2 and ground (models before VIN No. Ð
N16U0135126), or Check voltage between combination meter (security indicator lamp) connector terminal 23 and
ground (models after VIN No. Ð N16U0135126).
YEL787C
OK or NG
OK©GO TO 4.
NG©Check harness for open or short between fuse and security indicator lamp (models
before VIN No. Ð N16U0135126) or Combination meter (models after VIN No. Ð
N16U0135126).
4 CHECK SECURITY INDICATOR LAMP
Check security Indicator Lamp.
Is security indicator lamp OK?
Ye s©GO TO 5.
No©Repair or replace combination meter or security indicator lamp.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-444

5 CHECK IMMU FUNCTION
1. Connect IMMU connector.
2. Disconnect security indicator lamp connector (Sedan models and hatchback models before VIN No. Ð N16U0135126)
or combination meter connector (Hatchback models after VIN No. Ð N16U0135126).
3. Check continuity between IMMU terminal 5 (Sedan) or 6 (Hatchback) and ground.
SEL485X
OK or NG
OK©Check harness for open or short between security indicator lamp and IMMU.
NG©IMMU is malfunctioning.
Replace IMMU.Ref. part No. A
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II operation manual NATSº.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-445

DIAGNOSTIC PROCEDURE 7=NJEL0411S11Self-diagnostic results:
ªLOCK MODEº displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS ªLOCK MODEº is displayed on CONSULT-II screen.
SEL371X
Is CONSULT-II screen displayed as above?
Ye s©GO TO 2.
No©GO TO SYMPTOM MATRIX CHART 1.
2 ESCAPE FROM LOCK MODE
1. Turn ignition switch OFF.
2. Turn ignition switch ON with registered key. (Do not start engine.) Wait 5 seconds.
3. Return the key to OFF position.
4. Repeat steps 2 and 3 twice (total of three cycles).
5. Start the engine.
Does engine start?
Ye s©System is OK.
(Now system is escaped from ªLOCK MODEº.)
No©GO TO 3.
3 CHECK IMMU ILLUSTRATION
Check IMMU installation. Refer to ªHow to Replace IMMUº in EL-449.
OK or NG
OK©GO TO 4.
NG©Reinstall IMMU correctly.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-446

4 PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II operation manual NATSº.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows the above message on the screen.
Can the system be initialized?
Ye s©System is OK.
No©GO TO 5.
5 PERFORM INITIALIZATION WITH CONSULT-II AGAIN
1. Replace IMMU.
2. Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II operation manual NATSº.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows the above message on the screen.
Can the system be initialized?
Ye s©System is OK. (IMMU is malfunctioning.Ref. part No. A)
No©ECM is malfunctioning.
Replace ECM.Ref. part No. B
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II operation manual NATSº.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-447

DIAGNOSTIC PROCEDURE 8=NJEL0411S14
1 CHECK HARNESS CONNECTOR CONNECTION
Perform initialization with CONSULT-II.
Check harness connector connection between M31 and M102.
Then initialize NATS. For the initialization operation, refer to ªCONSULT-II operation NATSº.
Does the security indicator blink just after initialization?
Ye s©System is OK. (The malfunction is caused by improper connector connection.)
No©GO TO 2.
2 CHECK GROUND CIRCUIT FOR DONGLE UNIT
Check continuity between dongle unit terminal 1 and ground.
SEL029X
YesorNo
Ye s©GO TO 3.
No©Repair harness.
3 CHECK INTERFACE CIRCUIT
SEL030X
YesorNo
Ye s©Dongle unit is malfunctioning.
1. Replace dongle unit.
2. Perform initialization with CONSULT-II. For the initialization procedure, refer to ªCON-
SULT-II Operation Manual NATSº.
No©Repair harness.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-448

SEL096WC
How to Replace NATS IMMUNJEL0412NOTE:
+If NATS IMMU is not installed correctly, NATS system will
not operate properly and SELF-DIAG RESULTS on CON-
SULT-II screen will show ªLOCK MODEº.
NATS (NISSAN ANTI-THEFT SYSTEM)
How to Replace NATS IMMU
EL-449

PrecautionsNJEL0514WARNING:
Do not attempt to disassemble the monitor. Parts of the monitor have high voltages that can result in
severe and dangerous electric shock.
CAUTION:
+Do not reverse battery connections.
+Do not attach unauthorized parts.
+Protect the unit from severe impact.
NOTE:
Before beginning repair, determine whether or not the unit is defective. Refer to ªThis Condition Is Not
Abnormalº (EL-507).
NAVIGATION SYSTEM
Precautions
EL-450

Component Parts LocationNJEL0515
SEL501X
NAVIGATION SYSTEM
Component Parts Location
EL-451

SEL504X
System DescriptionNJEL0516OUTLINENJEL0516S01The Navigation System (Multi-AV System) relies upon three sens-
ing devices in order to determine vehicle location at regular time
intervals.
1. Vehicle speed sensor: Determines the distance the vehicle has
traveled.
2. Gyro (Angular velocity sensor): Determines vehicle steering
angle and directional change.
3. GPS antenna (GPS data): Determines vehicle forward move-
ment and direction.
The data provided by the three sensing functions together with a
comparison of the mapping information read from the CD-ROM
drive permit accurate determination of the vehicle's current location
and subsequent course (map matching). The information appears
on a liquid crystal display.
This comparison of GPS data (vehicle position sensing) and map
matching permits precise determination of vehicle location.
SEL684V
Position Sensor Operating PrinciplesNJEL0516S0101The sensor determines current vehicle location by calculating the
previously sensed position, the distance traveled from this position,
and the directional changes occurring during this travel.
1. Distance traveled
The distance traveled is calculated using signals received from
the vehicle speed sensor. The sensor automatically compen-
sates for the slightly reduced wheel and tire diameter resulting
from tire wear.
2. Forward movement (Direction)
Changes in the direction of forward movement are calculated
by the gyro (angular velocity sensor) and the GPS antenna
(GPS data). Each of these functions has its advantage and
disadvantages. Depending upon conditions, one function takes
precedence over the other to accurately determine the direc-
tion of forward movement.
Function type Advantage Disadvantage
Gyro (Angular
velocity sen-
sor)+Able to accurately detect
minute changes in steering
angle and direction.+Calculation errors may
accumulate over a long
period of continuous
vehicle travel.
GPS antenna
(GPS data)+Able to sense vehicle travel
in four general directions
(North, South, East, and
West)+Unable to detect direction
of vehicle travel at low
vehicle speeds.
NAVIGATION SYSTEM
System Description
EL-452