Nissan Terrano model r20 series 2004. Instruction — part 434
DIAGNOSTIC PROCEDURE 5
Self-diagnostic results:
“LOCK MODE” displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS “LOCK MODE” 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
E
Yes
System is OK.
(Now the system is
escaped from “LOCK
MODE”.)
CHECK NATS IMMU INSTALLATION.
Refer to “How to Replace NATS IMMU” in
EL-242.
OK
E
NG
Reinstall NATS IMMU cor-
rectly.
PERFORM INITIALIZATION.
Perform initialization with CONSULT-II.
For the initialization procedure, refer to
“CONSULT-II operation instruction NATS”.
Can the system be initialized?
Note: If the initialization is incompleted or
failed, CONSULT-II shows
mes-
sage on the screen.
No
E
Yes
System is OK.
Go to DIAGNOSTIC PROCEDURE 4,
EL-237 to check “CHAIN OF IMMU-KEY”.
YEL484B
YEL479B
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NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-240
DIAGNOSTIC PROCEDURE 6
“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
Check 10A fuse (No. 16 , located in the
fuse block).
OK
E
NG
Replace fuse.
NATS INITIALIZATION
1. Install the 10A fuse.
2. Perform initialization with CONSULT-II.
For the operation of initialization, refer
to “CONSULT-II operation instruction
NATS”.
Turn ignition switch “OFF”.
Start engine and turn ignition switch
“OFF”.
Check the security ind. lighting.
NG
E
OK
INSPECTION END
Check voltage between combination meter
connector terminal
q
27
and ground.
Voltage: Battery voltage
OK
E
NG
Check harness for open or
short between fuse and
combination meter.
CHECK SECURITY INDICATOR LAMP.
OK
E
NG
Repair or replace combina-
tion meter.
CHECK HARNESS BETWEEN COMBI-
NATION METER AND NATS IMMU.
1. Disconnect combination meter and
NATS IMMU connector.
2. Check continuity between combination
meter terminal
q
40
and NATS IMMU
harness connector terminal
q
5
.
Continuity should exist.
3. Check continuity between combination
meter harness connector terminal
q
40
and ground.
Continuity should not exist.
OK
E
NG
Repair or replace harness.
CHECK NATS IMMU FUNCTION.
1. Connect combination meter connector
and NATS IMMU connector.
2. Check continuity between NATS IMMU
terminal
q
5
and ground.
Continuity should exist intermit-
tently.
OK
E
NG
NATS IMMU is malfunc-
tioning. Replace IMMU.
Perform initialization
with CONSULT-II.
For the operation of
initialization, refer to
“CONSULT-II opera-
tion instruction NATS”.
INSPECTION END
YEL330D
YEL899E
YEL331D
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NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-241
DIAGNOSTIC PROCEDURE 7
Perform initialization with CONSULT-II
Check the following harness connector
connection.
M720
Then initialize NATS. For the operation of
initialization, refer to “CONSULT-II opera-
tion instruction NATS”.
Does the security indicator blink just
after the initialization?
No
E
Yes
System is OK.
(The malfunction is caused
by improper connector
connection.)
CHECK GROUND CIRCUIT FOR
DONGLE UNIT.
Check continuity between dongle control
unit terminal
q
3
and ground.
Continuity should exist.
Yes
E
No
Repair harness.
CHECK INTERFACE CIRCUIT.
1. Check continuity between IMMU termi-
nal
q
2
and dongle control unit terminal
q
5
(Open circuit check)
Continuity should exist.
2. Check continuity between IMMU termi-
nal
q
2
and ground. (Short circuit check)
Continuity should not exist.
Yes
E
No
Repair harness.
Dongle unit is malfunctioning.
1. Replace dongle control unit.
2. Perform initialization with CONSULT-II.
For the initialization procedure, refer to
“CONSULT-II operation instruction NATS”.
How to Replace NATS IMMU
NOTE:
I
If NATS IMMU is not installed correctly, NATS system will
not operate properly and SELF-DIAG RESULTS on CON-
SULT-II screen will show “LOCK MODE” or “CHAIN OF
IMMU-KEY”.
YEL332D
YEL333D
YEL329D
SEL096WA
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NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-242
Components Parts and Harness Connector
Location
YEL335D
THEFT WARNING SYSTEM
EL-243
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