2002 NISSAN TERRANO Service Repair Manual

DIAGNOSTIC PROCEDURE 3
Self-diagnostic results:
ªDIFFERENCE OF KEYº displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS ªDIFFERENCE OF KEYº
displayed on CONSULT-II screen.
OK
PERFORM INITIALISATION.
Perform initialisation with CONSULT-II.
Re-register all NATS ignition key IDs.
For the initialisation procedure, refer to
ªCONSULT-II operation manual NATSº.
Can the system be initialized?
Note: If the initialisation is not completed
or fails, CONSULT-II shows
message on the screen.
Ye s
ENo
IIMMU is malfunctioning.
1. Replace IMMU.
Ref. part No. A
2. Perform initialisation
with CONSULT-II.
For the initialisation
procedure, refer to
ªCONSULT-II operation
manual NATSº.
Start engine.
END
(Ignition key ID had been unregistered.)
YEL478B
YEL479B
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H
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NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-201

DIAGNOSTIC PROCEDURE 4
Self-diagnostic results:
ªCHAIN OF IMMU-KEYº displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS ªCHAIN OF IMMU-KEYº
displayed on CONSULT-II screen.
OK
CHECK NATS IGNITION KEY ID CHIP.
Can the engine start with another regis-
tered NATS ignition key?
No
EYe s
IIgnition key ID chip is
malfunctioning.
1. Replace the ignition
key.
Ref. part No. E
2. Perform initialisation
with CONSULT-II.
For the initialisation
procedure, refer to
ªCONSULT-II operation
manual NATSº.
CHECK NATS IMMU INSTALLATION.
Refer to ªHow to Replace NATS IMMUº in
EL-208.
OK
ENG
Reinstall NATS IMMU cor-
rectly.
Is this vehicle equipped with dongle con-
trol unit (RHD models)?
Ye s
ENo
IMMU is malfunctioning.
1. Replace IMMU.
Ref part No. A
2. Perform initialisation
with CONSULT-II
For the initialisation
procedure, refer to
ªCONSULT-II operation
manual NATSº.
qA
YEL480B
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NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-202

qA
CHECK HARNESS CONNECTOR CON-
NECTION.
Check the following harness connector
connection.
M720
Does the engine start?
No
EYe s
System is OK.
(The malfunction is caused
by improper connector
connection.)
CHECK GROUND CIRCUIT FOR
DONGLE UNIT.
Check continuity between dongle control
unit terminalq
3and ground.
Continuity should exist.
Ye s
ENo
Repair harness.
CHECK INTERFACE CIRCUIT.
1. Check continuity between IMMU termi-
nalq
2and dongle control unit terminal
q
5(Open circuit check)
Continuity should exist.
2. Check continuity between IMMU termi-
nalq
2and ground. (Short circuit check)
Continuity should not exist.
Ye s
ENo
Repair harness.
Dongle unit is malfunctioning.
1. Replace dongle control unit.
2. Perform initialisation with CONSULT-II.
For the initialisation procedure, refer to
ªCONSULT-II operation manual NATSº.
YEL327D
YEL328D
YEL329D
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NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-203

DIAGNOSTIC PROCEDURE 5
Self-diagnostic results:
ªID DISCORD, IMM-ECMº displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS ªID DISCORD, IMM-
ECM*º displayed on CONSULT-II
screen.* ªID DISCORD, IMM-ECMº:
Registered ID of IMMU is in
discord with that of ECM.
PERFORM INITIALISATION.
Perform initialisation with CONSULT-II.
Re-register all NATS ignition key IDs.
For the initialisation procedure, refer to
ªCONSULT-II operation manual NATSº.
Can the system be initialized?
Note: If the initialisation is not com-
pleted or fails, CONSULT-II shows
message on the screen.
Ye s
ENo
IECM is malfunctioning.
1. Replace ECM.
Ref. part No. B
2. Perform initialisation
with CONSULT-II.
For the initialisation
procedure, refer to
ªCONSULT-II operation
manual NATSº.
Start engine. (END)
(System initialisation was not completed.
Ref. part No. F)
C2SDD01
YEL479B
H
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NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-204

DIAGNOSTIC PROCEDURE 6
ªSECURITY INDICATOR LAMP DOES NOT LIGHT UPº
Check 10A fuse (No.16 , located in the
fuse block).
OK
ENG
Replace fuse.
NATS INITIALISATION
1) Install the 10A fuse.
2) Perform initialisation with CON-
SULT-II.
For the operation of initialisation,
refer to ªCONSULT-II operation
manual NATSº.
Turn ignition switch ªOFFº.
Start engine and turn ignition switch
ªOFFº.
Check the security ind. lighting.
NG
EOK
INSPECTION END
Check voltage between combination meter
connector terminalq
27and ground.
Voltage: Battery voltage
OK
ENG
Check harness for open or
short between fuse and
combination meter.
CHECK SECURITY INDICATOR LAMP.
OK
ENG
Repair or replace combina-
tion meter.
CHECK NATS IMMU FUNCTION.
1. Connect NATS IMMU connector.
2. Disconnect combination meter connec-
tor.
3. Check continuity between NATS IMMU
terminalq
5and ground.
Continuity should exist intermit-
tently.
OK
ENG
NATS IMMU is malfunc-
tioning. Replace IMMU.
Perform initialisation
with CONSULT-II.
For the operation of
initialisation, refer to
ªCONSULT-II opera-
tion manual NATSº.
Check harness for open or short between
combination meter and NATS IMMU.
YEL330D
YEL331D
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NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-205

DIAGNOSTIC PROCEDURE 7
Self-diagnostic results:
ªLOCK MODEº displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS ªLOCK MODEº is dis-
played on CONSULT-II screen.
1. Turn the ignition switch to OFF posi-
tion.
2. Turn the ignition key switch to ON posi-
tion with a registered key.
(Do not start engine.) Wait for 5 sec-
onds.
3. Return the key to the OFF position.
4. Repeat steps 2 and 3 twice (total of
three cycles).
5. Start the engine.
Can the engine start?
No
EYe s
System is OK.
(Now the system is
escaped from ªLOCK
MODEº.)
CHECK NATS IMMU INSTALLATION.
Refer to ªHow to Replace NATS IMMUº in
EL-208.
OK
ENG
Reinstall NATS IMMU cor-
rectly.
PERFORM INITIALISATION.
Perform initialisation with CONSULT-II.
For the initialisation procedure, refer to
ªCONSULT-II operation manual NATSº.
Can the system be initialized?
Note: If the initialisation is incompleted or
failed, CONSULT-II shows
mes-
sage on the screen.
No
EYe s
System is OK.
Go to DIAGNOSTIC PROCEDURE 4,
EL-202 to check ªCHAIN OF IMMU-KEYº.
YEL484B
YEL479B
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NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-206

DIAGNOSTIC PROCEDURE 8
Perform initialization with CONSULT-II
Check the following harness connector
connection.
M720
Then initialize NATS. For the operation of
initialization, refer to ªCONSULT-II opera-
tion manual NATSº.
Does the security indicator blink just
after the initialization?
No
EYe s
System is OK.
(The malfunction is caused
by improper connector
connection.)
CHECK GROUND CIRCUIT FOR
DONGLE UNIT.
Check continuity between dongle control
unit terminalq
3and ground.
Continuity should exist.
Ye s
ENo
Repair harness.
CHECK INTERFACE CIRCUIT.
1. Check continuity between IMMU termi-
nalq
2and dongle control unit terminal
q
5(Open circuit check)
Continuity should exist.
2. Check continuity between IMMU termi-
nalq
2and ground. (Short circuit check)
Continuity should not exist.
Ye s
ENo
Repair harness.
Dongle unit is malfunctioning.
1. Replace dongle control unit.
2. Perform initialisation with CONSULT-II.
For the initialisation procedure, refer to
ªCONSULT-II operation manual NATSº.
YEL332D
YEL333D
YEL334D
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NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-207

How to Replace NATS IMMU
NOTE:
IIf 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 or ªCHAIN OF
IMMU-KEYº.
SEL096WA
NATS (Nissan Anti-Theft System)
EL-208