Page 2736 of 3189
DIAGNOSTIC PROCEDURE 4=NJEL0590S08Self-diagnostic results:
“CHAIN OF IMMU-KEY” displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF IMMU-KEY” displayed on CONSULT-II screen.
SEL957W
Is CONSULT-II screen displayed as above?
Ye s G O T O 2 .
No GO TO EL-394, “SYMPTOM MATRIX CHART 1”.
2 CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to EL-411, “How to Replace NATS Antenna Amp”.
OK or NG
Ye s G O T O 3 .
No Reinstall NATS antenna amp. correctly.
3 CHECK NATS IGNITION KEY ID CHIP
Start engine with another registered NATS ignition key.
Does the engine start?
Yes Ignition key ID chip is malfunctioning.
Replace the ignition key.
Ref. part No. E5
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS”.
No GO TO 4.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-400
Page 2737 of 3189

4 CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
Check voltage between NATS antenna amp. harness connector M31 terminal 1 (G) and ground with analogue tester.
SIIA1670E
Before turning ignition switch “ON”
Voltage: 0V
Just after turning ignition switch “ON”:
Pointer of tester should move.
OK or NG
OK GO TO 5.
NG Check harness for open or short between NATS antenna amp and IMMU (Smart
entrance control unit).
NOTE:
If harness is OK, replace IMMU, perform initialization with CONSULT-II. For
initialization, refer to “CONSULT-II operation manual NATS”.
5 CHECK NATS ANTENNA AMP. SIGNAL LINE-1
Check voltage between NATS antenna amp. harness connector M31 terminal 3 (G/W) and ground with analogue tester.
SIIA1671E
Before turning ignition switch “ON”
Voltage: 0V
Just after turning ignition switch “ON”:
Pointer of tester should move.
OK or NG
OK GO TO 6.
NG Check harness for open or short between NATS antenna amp and IMMU (Smart
entrance control unit).
NOTE:
If harness is OK, replace IMMU, perform initialization with CONSULT-II. For
initialization, refer to “CONSULT-II operation manual NATS”.
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NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-401
Page 2738 of 3189

6 CHECK NATS ANTENNA AMP. SIGNAL LINE-2
Check voltage between NATS antenna amp. harness connector M31 terminal 7 (Y/G) and ground with analogue tester.
SIIA1672E
Before turning ignition switch “ON”
Voltage: 0V
Just after turning ignition switch “ON”:
Pointer of tester should move.
OK or NG
OK GO TO 7.
NG Check harness for open or short between NATS antenna amp and IMMU (Smart
entrance control unit).
NOTE:
If harness is OK, replace IMMU, perform initialization with CONSULT-II. For
initialization, refer to “CONSULT-II operation manual NATS”.
7 CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT
1. Turn ignition switch “OFF”
2. Disconnect NATS antenna amp connector.
3. Check continuity between NATS antenna amp. harness connector M31 terminal 5 (G/OR) and ground.
SIIA1673E
Continuity should exist.
OK or NG
OK NATS antenna amp. malfunctioning.
Ref. part No. E6
NG Check harness for open or short between NATS antenna amp and IMMU (Smart
entrance control unit).
NOTE:
If harness is OK, replace IMMU, perform initialization with CONSULT-II. For
initialization, refer to “CONSULT-II operation manual NATS”.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-402
Page 2739 of 3189

DIAGNOSTIC PROCEDURE 5=NJEL0590S09Self-diagnostic results:
“ID DISCORD, IMM-ECM” displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “ID DISCORD, IMM-ECM” displayed on CONSULT-II screen.
NOTE:
“ID DISCORD IMMU-ECM”:
Registered ID of IMMU is in discord with that of ECM.
SEL958W
Is CONSULT-II screen displayed as above?
Ye s G O T O 2 .
No GO TO EL-394, “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 “CONSULT-II operation manual NATS”.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows above message on the screen.
Can the system be initialized?
Yes 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 “CONSULT-II operation manual NATS”.
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NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-403
Page 2740 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual DIAGNOSTIC PROCEDURE 6=NJEL0590S10“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
1 CHECK FUSE
Check 10A fuse [No. 12 and No. 30, located in the fuse block (J/B)]
10A fuse OK?
OK GO TO 2.
NG Replace f NISSAN ALMERA N16 2003 Electronic Repair Manual DIAGNOSTIC PROCEDURE 6=NJEL0590S10“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
1 CHECK FUSE
Check 10A fuse [No. 12 and No. 30, located in the fuse block (J/B)]
10A fuse OK?
OK GO TO 2.
NG Replace f](/manual-img/5/57350/w960_57350-2739.png)
DIAGNOSTIC PROCEDURE 6=NJEL0590S10“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
1 CHECK FUSE
Check 10A fuse [No. 12 and No. 30, located in the fuse block (J/B)]
10A fuse OK?
OK GO TO 2.
NG Replace fuse.
2 CHECK SECURITY INDICATOR LAMP
1. Install 10A fuse.
2. Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS”.
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 combination meter connector.
2. Check voltage between combination meter harness connector M171 terminal 34 and ground.
YEL842D
Battery voltage should exist.
OK or NG
OK GO TO 4.
NG Check harness for open or short between fuse and security indicator lamp.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-404
Page 2741 of 3189
4 CHECK SMART ENTRANCE CONTROL UNIT FUNCTION
1. Disconnect combination meter connector.
2. Connect smart entrance control unit connector.
3. Check continuity between smart entrance control unit harness connector M194 terminal 34 (L/Y) and ground.
SIIA1654E
Continuity should exist intermittently.
OK or NG
OK Check harness for open or short between smart entrance control unit and combination
meter.
NGIMMU (Smart entrance control unit) is malfunctioning.
Replace smart entrance control unit
Ref. part No. A
Perform initialization with CONSULT-II
For initialization, refer to “CONSULT-II operation manual NATS”
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NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-405
Page 2742 of 3189

DIAGNOSTIC PROCEDURE 7=NJEL0590S11Self-diagnostic results:
“LOCK MODE” displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “LOCK MODE” is displayed on CONSULT-II screen.
SEL960W
Is CONSULT-II screen displayed as above?
Ye s G O T O 2 .
No GO TO EL-394, “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.) Wait5 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?
Yes System is OK.
(Now system is escaped from “LOCK MODE”.)
No GO TO 3.
3 PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II operation manual NATS”.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows the above message on the screen.
Can the system be initialized?
Yes System is OK.
No GO TO 4.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-406
Page 2743 of 3189

4 PERFORM INITIALIZATION WITH CONSULT-II AGAIN
1. Replace IMMU (Smart entrance control unit).
2. Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II operation manual NATS”.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows the above message on the screen.
Can the system be initialized?
Yes 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 “CONSULT-II operation manual NATS”.
DIAGNOSTIC PROCEDURE 8NJEL0590S12
1 CHECK HARNESS CONNECTOR CONNECTION
Perform initialization with CONSULT-II
Check harness connector connection between Dongle unit harness connector M102 and IMMU (Smart entrance control
unit) harness connector M193.
Then initialize NATS. For the initialization operation, refer to “CONSULT-II operation manual NATS”
Does the security indicator blink just after initialization?
Yes System is OK. (The malfunction is caused by improper connector connection.)
No GO TO 2.
2 CHECK GROUND CIRCUIT FOR DONGLE UNIT
1. Disconnect dongle unit harness connector.
2. Check continuity between dongle unit harness connector M102 terminal 1(B) and ground.
SIIA1674E
Continuity should exist.
OK or NG
OK GO TO 3.
NG Repair harness.
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NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-407